X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=sim%2Fsh%2Fgencode.c;h=77a83d637685066f80a9fb23e8cd80e05e5152b7;hb=f2e1c129f8f0985ec80e6cf775cf3e4afbced6fa;hp=3aa3918146f9f576a408bb6e68f65532c48c8df9;hpb=72ec28b8afa357cdde70c612b4e0e9f37a34f8e4;p=deliverable%2Fbinutils-gdb.git diff --git a/sim/sh/gencode.c b/sim/sh/gencode.c index 3aa3918146..77a83d6376 100644 --- a/sim/sh/gencode.c +++ b/sim/sh/gencode.c @@ -1,9 +1,10 @@ -/* Simulator/Opcode generator for the Hitachi Super-H architecture. +/* Simulator/Opcode generator for the Renesas + (formerly Hitachi) / SuperH Inc. Super-H architecture. Written by Steve Chamberlain of Cygnus Support. sac@cygnus.com - This file is part of SH sim + This file is part of SH sim. THIS SOFTWARE IS NOT COPYRIGHTED @@ -19,38 +20,41 @@ */ /* This program generates the opcode table for the assembler and - the simulator code + the simulator code. -t prints a pretty table for the assembler manual -s generates the simulator code jump table -d generates a define table -x generates the simulator code switch statement - default generates the opcode tables + default used to generate the opcode tables */ +#include #include +#include +#include +#include +#include "libiberty.h" -#define MAX_NR_STUFF 20 +#define MAX_NR_STUFF 42 typedef struct { - char *defs; - char *refs; - char *name; - char *code; - char *stuff[MAX_NR_STUFF]; + const char *defs; + const char *refs; + const char *name; + const char *code; + const char * const stuff[MAX_NR_STUFF]; int index; -} - -op; +} op; -op tab[] = +static op tab[] = { { "n", "", "add #,", "0111nnnni8*1....", - "R[n] += SEXT(i);", + "R[n] += SEXT (i);", "if (i == 0) {", " UNDEF(n); /* see #ifdef PARANOID */", " break;", @@ -73,7 +77,7 @@ op tab[] = "R[n] = ult;", }, - { "0", "", "and #,R0", "11001001i8*1....", + { "0", "0", "and #,R0", "11001001i8*1....", "R0 &= i;", }, { "n", "nm", "and ,", "0010nnnnmmmm1001", @@ -85,52 +89,251 @@ op tab[] = }, { "", "", "bf ", "10001011i8p1....", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", "if (!T) {", - " nia = PC + 4 + (SEXT(i) * 2);", + " SET_NIP (PC + 4 + (SEXT (i) * 2));", " cycles += 2;", "}", }, { "", "", "bf.s ", "10001111i8p1....", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", "if (!T) {", - " nia = PC + 4 + (SEXT (i) * 2);", + " SET_NIP (PC + 4 + (SEXT (i) * 2));", " cycles += 2;", " Delay_Slot (PC + 2);", "}", }, + { "", "n", "bit32 #imm3,@(disp12,)", "0011nnnni8*11001", + "/* 32-bit logical bit-manipulation instructions. */", + "int word2 = RIAT (nip);", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "i >>= 4; /* BOGUS: Using only three bits of 'i'. */", + "/* MSB of 'i' must be zero. */", + "if (i > 7)", + " RAISE_EXCEPTION (SIGILL);", + "MA (1);", + "do_blog_insn (1 << i, (word2 & 0xfff) + R[n], ", + " (word2 >> 12) & 0xf, memory, maskb);", + "SET_NIP (nip + 2); /* Consume 2 more bytes. */", + }, { "", "", "bra ", "1010i12.........", - "nia = PC + 4 + (SEXT12 (i) * 2);", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "SET_NIP (PC + 4 + (SEXT12 (i) * 2));", + "cycles += 2;", "Delay_Slot (PC + 2);", }, { "", "n", "braf ", "0000nnnn00100011", - "nia = PC + 4 + R[n];", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "SET_NIP (PC + 4 + R[n]);", + "cycles += 2;", "Delay_Slot (PC + 2);", }, { "", "", "bsr ", "1011i12.........", - "PR = PC + 4;", - "nia = PC + 4 + (SEXT12 (i) * 2);", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "PR = PH2T (PC + 4);", + "SET_NIP (PC + 4 + (SEXT12 (i) * 2));", + "cycles += 2;", "Delay_Slot (PC + 2);", }, { "", "n", "bsrf ", "0000nnnn00000011", - "PR = PC + 4;", - "nia = PC + 4 + R[n];", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "PR = PH2T (PC) + 4;", + "SET_NIP (PC + 4 + R[n]);", + "cycles += 2;", "Delay_Slot (PC + 2);", }, { "", "", "bt ", "10001001i8p1....", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", "if (T) {", - " nia = PC + 4 + (SEXT (i) * 2);", + " SET_NIP (PC + 4 + (SEXT (i) * 2));", " cycles += 2;", "}", }, + + { "", "m", "bld/st #, ", "10000111mmmmi4*1", + "/* MSB of 'i' is true for load, false for store. */", + "if (i <= 7)", + " if (T)", + " R[m] |= (1 << i);", + " else", + " R[m] &= ~(1 << i);", + "else", + " SET_SR_T ((R[m] & (1 << (i - 8))) != 0);", + }, + { "m", "m", "bset/clr #, ", "10000110mmmmi4*1", + "/* MSB of 'i' is true for set, false for clear. */", + "if (i <= 7)", + " R[m] &= ~(1 << i);", + "else", + " R[m] |= (1 << (i - 8));", + }, + { "n", "n", "clips.b ", "0100nnnn10010001", + "if (R[n] < -128 || R[n] > 127) {", + " L (n);", + " SET_SR_CS (1);", + " if (R[n] > 127)", + " R[n] = 127;", + " else if (R[n] < -128)", + " R[n] = -128;", + "}", + }, + { "n", "n", "clips.w ", "0100nnnn10010101", + "if (R[n] < -32768 || R[n] > 32767) {", + " L (n);", + " SET_SR_CS (1);", + " if (R[n] > 32767)", + " R[n] = 32767;", + " else if (R[n] < -32768)", + " R[n] = -32768;", + "}", + }, + { "n", "n", "clipu.b ", "0100nnnn10000001", + "if (R[n] < -256 || R[n] > 255) {", + " L (n);", + " SET_SR_CS (1);", + " R[n] = 255;", + "}", + }, + { "n", "n", "clipu.w ", "0100nnnn10000101", + "if (R[n] < -65536 || R[n] > 65535) {", + " L (n);", + " SET_SR_CS (1);", + " R[n] = 65535;", + "}", + }, + { "n", "0n", "divs R0,", "0100nnnn10010100", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "if (R0 == 0)", + " R[n] = 0x7fffffff;", + "else if (R0 == -1 && R[n] == 0x80000000)", + " R[n] = 0x7fffffff;", + "else R[n] /= R0;", + "L (n);", + }, + { "n", "0n", "divu R0,", "0100nnnn10000100", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "if (R0 == 0)", + " R[n] = 0xffffffff;", + "/* FIXME: The result may be implementation-defined if it is outside */", + "/* the range of signed int (i.e. if R[n] was negative and R0 == 1). */", + "else R[n] = R[n] / (unsigned int) R0;", + "L (n);", + }, + { "n", "0n", "mulr R0,", "0100nnnn10000000", + "R[n] = (R[n] * R0) & 0xffffffff;", + "L (n);", + }, + { "0", "n", "ldbank @,R0", "0100nnnn11100101", + "int regn = (R[n] >> 2) & 0x1f;", + "int bankn = (R[n] >> 7) & 0x1ff;", + "if (regn > 19)", + " regn = 19; /* FIXME what should happen? */", + "R0 = saved_state.asregs.regstack[bankn].regs[regn];", + "L (0);", + }, + { "", "0n", "stbank R0,@", "0100nnnn11100001", + "int regn = (R[n] >> 2) & 0x1f;", + "int bankn = (R[n] >> 7) & 0x1ff;", + "if (regn > 19)", + " regn = 19; /* FIXME what should happen? */", + "saved_state.asregs.regstack[bankn].regs[regn] = R0;", + }, + { "", "", "resbank", "0000000001011011", + "int i;", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + /* FIXME: cdef all */ + "if (BO) { /* Bank Overflow */", + /* FIXME: how do we know when to reset BO? */ + " for (i = 0; i <= 14; i++) {", + " R[i] = RLAT (R[15]);", + " MA (1);", + " R[15] += 4;", + " }", + " PR = RLAT (R[15]);", + " R[15] += 4;", + " MA (1);", + " GBR = RLAT (R[15]);", + " R[15] += 4;", + " MA (1);", + " MACH = RLAT (R[15]);", + " R[15] += 4;", + " MA (1);", + " MACL = RLAT (R[15]);", + " R[15] += 4;", + " MA (1);", + "}", + "else if (BANKN == 0) /* Bank Underflow */", + " RAISE_EXCEPTION (SIGILL);", /* FIXME: what exception? */ + "else {", + " SET_BANKN (BANKN - 1);", + " for (i = 0; i <= 14; i++)", + " R[i] = saved_state.asregs.regstack[BANKN].regs[i];", + " MACH = saved_state.asregs.regstack[BANKN].regs[15];", + " PR = saved_state.asregs.regstack[BANKN].regs[17];", + " GBR = saved_state.asregs.regstack[BANKN].regs[18];", + " MACL = saved_state.asregs.regstack[BANKN].regs[19];", + "}", + }, + { "f", "f-", "movml.l ,@-R15", "0100nnnn11110001", + "/* Push Rn...R0 (if n==15, push pr and R14...R0). */", + "do {", + " MA (1);", + " R[15] -= 4;", + " if (n == 15)", + " WLAT (R[15], PR);", + " else", + " WLAT (R[15], R[n]);", + "} while (n-- > 0);", + }, + { "f", "f+", "movml.l @R15+,", "0100nnnn11110101", + "/* Pop R0...Rn (if n==15, pop R0...R14 and pr). */", + "int i = 0;\n", + "do {", + " MA (1);", + " if (i == 15)", + " PR = RLAT (R[15]);", + " else", + " R[i] = RLAT (R[15]);", + " R[15] += 4;", + "} while (i++ < n);", + }, + { "f", "f-", "movmu.l ,@-R15", "0100nnnn11110000", + "/* Push pr, R14...Rn (if n==15, push pr). */", /* FIXME */ + "int i = 15;\n", + "do {", + " MA (1);", + " R[15] -= 4;", + " if (i == 15)", + " WLAT (R[15], PR);", + " else", + " WLAT (R[15], R[i]);", + "} while (i-- > n);", + }, + { "f", "f+", "movmu.l @R15+,", "0100nnnn11110100", + "/* Pop Rn...R14, pr (if n==15, pop pr). */", /* FIXME */ + "do {", + " MA (1);", + " if (n == 15)", + " PR = RLAT (R[15]);", + " else", + " R[n] = RLAT (R[15]);", + " R[15] += 4;", + "} while (n++ < 15);", + }, + { "", "", "nott", "0000000001101000", + "SET_SR_T (T == 0);", + }, { "", "", "bt.s ", "10001101i8p1....", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", "if (T) {", - " nia = PC + 4 + (SEXT (i) * 2);", + " SET_NIP (PC + 4 + (SEXT (i) * 2));", " cycles += 2;", " Delay_Slot (PC + 2);", "}", @@ -149,6 +352,11 @@ op tab[] = "SET_SR_T (0);", }, + /* sh4a */ + { "", "", "clrdmxy", "0000000010001000", + "saved_state.asregs.cregs.named.sr &= ~(SR_MASK_DMX | SR_MASK_DMY);" + }, + { "", "0", "cmp/eq #,R0", "10001000i8*1....", "SET_SR_T (R0 == SEXT (i));", }, @@ -193,16 +401,16 @@ op tab[] = "SET_SR_T (0);", }, - { "", "", "div1 ,", "0011nnnnmmmm0100", - "div1 (R, m, n/*, T*/);", + { "n", "nm", "div1 ,", "0011nnnnmmmm0100", + "div1 (&R0, m, n/*, T*/);", }, { "", "nm", "dmuls.l ,", "0011nnnnmmmm1101", - "dmul (1/*signed*/, R[n], R[m]);", + "dmul_s (R[n], R[m]);", }, { "", "nm", "dmulu.l ,", "0011nnnnmmmm0101", - "dmul (0/*unsigned*/, R[n], R[m]);", + "dmul_u (R[n], R[m]);", }, { "n", "n", "dt ", "0100nnnn00010000", @@ -224,22 +432,28 @@ op tab[] = "R[n] = (R[m] & 0xffff);", }, - /* sh3e */ + /* sh2e */ { "", "", "fabs ", "1111nnnn01011101", - "FP_UNARY (n, fabs);", - "/* FIXME: FR(n) &= 0x7fffffff; */", + " union", + " {", + " unsigned int i;", + " float f;", + " } u;", + " u.f = FR (n);", + " u.i &= 0x7fffffff;", + " SET_FR (n, u.f);", }, - /* sh3e */ + /* sh2e */ { "", "", "fadd ,", "1111nnnnmmmm0000", "FP_OP (n, +, m);", }, - /* sh3e */ + /* sh2e */ { "", "", "fcmp/eq ,", "1111nnnnmmmm0100", "FP_CMP (n, ==, m);", }, - /* sh3e */ + /* sh2e */ { "", "", "fcmp/gt ,", "1111nnnnmmmm0101", "FP_CMP (n, >, m);", }, @@ -247,7 +461,7 @@ op tab[] = /* sh4 */ { "", "", "fcnvds ,FPUL", "1111nnnn10111101", "if (! FPSCR_PR || n & 1)", - " saved_state.asregs.exception = SIGILL;", + " RAISE_EXCEPTION (SIGILL);", "else", "{", " union", @@ -255,7 +469,7 @@ op tab[] = " int i;", " float f;", " } u;", - " u.f = DR(n);", + " u.f = DR (n);", " FPUL = u.i;", "}", }, @@ -263,7 +477,7 @@ op tab[] = /* sh4 */ { "", "", "fcnvsd FPUL,", "1111nnnn10101101", "if (! FPSCR_PR || n & 1)", - " saved_state.asregs.exception = SIGILL;", + " RAISE_EXCEPTION (SIGILL);", "else", "{", " union", @@ -272,64 +486,75 @@ op tab[] = " float f;", " } u;", " u.i = FPUL;", - " SET_DR(n, u.f);", + " SET_DR (n, u.f);", "}", }, - /* sh3e */ + /* sh2e */ { "", "", "fdiv ,", "1111nnnnmmmm0011", "FP_OP (n, /, m);", - "/* FIXME: check for DP and (n & 1) == 0? */", + "/* FIXME: check for DP and (n & 1) == 0? */", }, /* sh4 */ - { "", "", "fipr ,", "1111nnmm11101101", - "/* FIXME: not implemented */", - "saved_state.asregs.exception = SIGILL;", - "/* FIXME: check for DP and (n & 1) == 0? */", + { "", "", "fipr ,", "1111vvVV11101101", + "if (FPSCR_PR)", + " RAISE_EXCEPTION (SIGILL);", + "else", + "{", + " double fsum = 0;", + " if (saved_state.asregs.bfd_mach == bfd_mach_sh2a)", + " RAISE_EXCEPTION (SIGILL);", + " /* FIXME: check for nans and infinities. */", + " fsum += FR (v1+0) * FR (v2+0);", + " fsum += FR (v1+1) * FR (v2+1);", + " fsum += FR (v1+2) * FR (v2+2);", + " fsum += FR (v1+3) * FR (v2+3);", + " SET_FR (v1+3, fsum);", + "}", }, - /* sh3e */ + /* sh2e */ { "", "", "fldi0 ", "1111nnnn10001101", - "SET_FR (n, (float)0.0);", - "/* FIXME: check for DP and (n & 1) == 0? */", + "SET_FR (n, (float) 0.0);", + "/* FIXME: check for DP and (n & 1) == 0? */", }, - /* sh3e */ + /* sh2e */ { "", "", "fldi1 ", "1111nnnn10011101", - "SET_FR (n, (float)1.0);", - "/* FIXME: check for DP and (n & 1) == 0? */", + "SET_FR (n, (float) 1.0);", + "/* FIXME: check for DP and (n & 1) == 0? */", }, - /* sh3e */ + /* sh2e */ { "", "", "flds ,FPUL", "1111nnnn00011101", " union", " {", " int i;", " float f;", " } u;", - " u.f = FR(n);", + " u.f = FR (n);", " FPUL = u.i;", }, - /* sh3e */ + /* sh2e */ { "", "", "float FPUL,", "1111nnnn00101101", /* sh4 */ "if (FPSCR_PR)", - " SET_DR (n, (double)FPUL);", + " SET_DR (n, (double) FPUL);", "else", "{", - " SET_FR (n, (float)FPUL);", + " SET_FR (n, (float) FPUL);", "}", }, - /* sh3e */ + /* sh2e */ { "", "", "fmac ,,", "1111nnnnmmmm1110", - "SET_FR (n, FR(m) * FR(0) + FR(n));", + "SET_FR (n, FR (m) * FR (0) + FR (n));", "/* FIXME: check for DP and (n & 1) == 0? */", }, - /* sh3e */ + /* sh2e */ { "", "", "fmov ,", "1111nnnnmmmm1100", /* sh4 */ "if (FPSCR_SZ) {", @@ -343,8 +568,8 @@ op tab[] = " SET_FR (n, FR (m));", "}", }, - /* sh3e */ - { "", "", "fmov.s ,@", "1111nnnnmmmm1010", + /* sh2e */ + { "", "n", "fmov.s ,@", "1111nnnnmmmm1010", /* sh4 */ "if (FPSCR_SZ) {", " MA (2);", @@ -353,11 +578,11 @@ op tab[] = "else", "{", " MA (1);", - " WLAT (R[n], FI(m));", + " WLAT (R[n], FI (m));", "}", }, - /* sh3e */ - { "", "", "fmov.s @,", "1111nnnnmmmm1000", + /* sh2e */ + { "", "m", "fmov.s @,", "1111nnnnmmmm1000", /* sh4 */ "if (FPSCR_SZ) {", " MA (2);", @@ -366,11 +591,23 @@ op tab[] = "else", "{", " MA (1);", - " SET_FI(n, RLAT(R[m]));", + " SET_FI (n, RLAT (R[m]));", "}", }, - /* sh3e */ - { "", "", "fmov.s @+,", "1111nnnnmmmm1001", + /* sh2a */ + { "", "n", "fmov.s @(disp12,), ", "0011nnnnmmmm0001", + "/* and fmov.s , @(disp12,)", + " and mov.bwl , @(disp12,)", + " and mov.bwl @(disp12,),", + " and movu.bw @(disp12,),. */", + "int word2 = RIAT (nip);", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "SET_NIP (nip + 2); /* Consume 2 more bytes. */", + "MA (1);", + "do_long_move_insn (word2 & 0xf000, word2 & 0x0fff, m, n, &thislock);", + }, + /* sh2e */ + { "m", "m", "fmov.s @+,", "1111nnnnmmmm1001", /* sh4 */ "if (FPSCR_SZ) {", " MA (2);", @@ -384,8 +621,8 @@ op tab[] = " R[m] += 4;", "}", }, - /* sh3e */ - { "", "", "fmov.s ,@-", "1111nnnnmmmm1011", + /* sh2e */ + { "n", "n", "fmov.s ,@-", "1111nnnnmmmm1011", /* sh4 */ "if (FPSCR_SZ) {", " MA (2);", @@ -396,11 +633,11 @@ op tab[] = "{", " MA (1);", " R[n] -= 4;", - " WLAT (R[n], FI(m));", + " WLAT (R[n], FI (m));", "}", }, - /* sh3e */ - { "", "", "fmov.s @(R0,),", "1111nnnnmmmm0110", + /* sh2e */ + { "", "0m", "fmov.s @(R0,),", "1111nnnnmmmm0110", /* sh4 */ "if (FPSCR_SZ) {", " MA (2);", @@ -409,11 +646,11 @@ op tab[] = "else", "{", " MA (1);", - " SET_FI(n, RLAT(R[0] + R[m]));", + " SET_FI (n, RLAT (R[0] + R[m]));", "}", }, - /* sh3e */ - { "", "", "fmov.s ,@(R0,)", "1111nnnnmmmm0111", + /* sh2e */ + { "", "0n", "fmov.s ,@(R0,)", "1111nnnnmmmm0111", /* sh4 */ "if (FPSCR_SZ) {", " MA (2);", @@ -422,59 +659,113 @@ op tab[] = "else", "{", " MA (1);", - " WLAT((R[0]+R[n]), FI(m));", + " WLAT ((R[0]+R[n]), FI (m));", "}", }, - /* sh4: See fmov instructions above for move to/from extended fp registers */ + /* sh4: + See fmov instructions above for move to/from extended fp registers. */ - /* sh3e */ + /* sh2e */ { "", "", "fmul ,", "1111nnnnmmmm0010", - "FP_OP(n, *, m);", + "FP_OP (n, *, m);", }, - /* sh3e */ + /* sh2e */ { "", "", "fneg ", "1111nnnn01001101", - "FP_UNARY(n, -);", + " union", + " {", + " unsigned int i;", + " float f;", + " } u;", + " u.f = FR (n);", + " u.i ^= 0x80000000;", + " SET_FR (n, u.f);", + }, + + /* sh4a */ + { "", "", "fpchg", "1111011111111101", + "SET_FPSCR (GET_FPSCR () ^ FPSCR_MASK_PR);", }, /* sh4 */ { "", "", "frchg", "1111101111111101", - "SET_FPSCR (GET_FPSCR() ^ FPSCR_MASK_FR);", + "if (FPSCR_PR)", + " RAISE_EXCEPTION (SIGILL);", + "else if (saved_state.asregs.bfd_mach == bfd_mach_sh2a)", + " RAISE_EXCEPTION (SIGILL);", + "else", + " SET_FPSCR (GET_FPSCR () ^ FPSCR_MASK_FR);", + }, + + /* sh4 */ + { "", "", "fsca", "1111eeee11111101", + "if (FPSCR_PR)", + " RAISE_EXCEPTION (SIGILL);", + "else if (saved_state.asregs.bfd_mach == bfd_mach_sh2a)", + " RAISE_EXCEPTION (SIGILL);", + "else", + " {", + " SET_FR (n, fsca_s (FPUL, &sin));", + " SET_FR (n+1, fsca_s (FPUL, &cos));", + " }", }, /* sh4 */ { "", "", "fschg", "1111001111111101", - "SET_FPSCR (GET_FPSCR() ^ FPSCR_MASK_SZ);", + "SET_FPSCR (GET_FPSCR () ^ FPSCR_MASK_SZ);", }, /* sh3e */ { "", "", "fsqrt ", "1111nnnn01101101", - "FP_UNARY(n, sqrt);", + "FP_UNARY (n, sqrt);", }, - /* sh3e */ + /* sh4 */ + { "", "", "fsrra ", "1111nnnn01111101", + "if (FPSCR_PR)", + " RAISE_EXCEPTION (SIGILL);", + "else if (saved_state.asregs.bfd_mach == bfd_mach_sh2a)", + " RAISE_EXCEPTION (SIGILL);", + "else", + " SET_FR (n, fsrra_s (FR (n)));", + }, + + /* sh2e */ { "", "", "fsub ,", "1111nnnnmmmm0001", - "FP_OP(n, -, m);", + "FP_OP (n, -, m);", }, - /* sh3e */ + /* sh2e */ { "", "", "ftrc , FPUL", "1111nnnn00111101", /* sh4 */ "if (FPSCR_PR) {", - " if (DR(n) != DR(n)) /* NaN */", + " if (DR (n) != DR (n)) /* NaN */", " FPUL = 0x80000000;", " else", - " FPUL = (int)DR(n);", + " FPUL = (int) DR (n);", "}", "else", - "if (FR(n) != FR(n)) /* NaN */", + "if (FR (n) != FR (n)) /* NaN */", " FPUL = 0x80000000;", "else", - " FPUL = (int)FR(n);", + " FPUL = (int) FR (n);", }, - /* sh3e */ + /* sh4 */ + { "", "", "ftrv ", "1111vv0111111101", + "if (FPSCR_PR)", + " RAISE_EXCEPTION (SIGILL);", + "else", + "{", + " if (saved_state.asregs.bfd_mach == bfd_mach_sh2a)", + " RAISE_EXCEPTION (SIGILL);", + " /* FIXME not implemented. */", + " printf (\"ftrv xmtrx, FV%d\\n\", v1);", + "}", + }, + + /* sh2e */ { "", "", "fsts FPUL,", "1111nnnn00001101", " union", " {", @@ -486,224 +777,168 @@ op tab[] = }, { "", "n", "jmp @", "0100nnnn00101011", - "nia = R[n];", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "SET_NIP (PT2H (R[n]));", + "cycles += 2;", "Delay_Slot (PC + 2);", }, { "", "n", "jsr @", "0100nnnn00001011", - "PR = PC + 4;", - "nia = R[n];", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "PR = PH2T (PC + 4);", "if (~doprofile)", - " gotcall (PR, nia);", + " gotcall (PR, R[n]);", + "SET_NIP (PT2H (R[n]));", + "cycles += 2;", "Delay_Slot (PC + 2);", }, + { "", "n", "jsr/n @", "0100nnnn01001011", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "PR = PH2T (PC + 2);", + "if (~doprofile)", + " gotcall (PR, R[n]);", + "SET_NIP (PT2H (R[n]));", + }, + { "", "", "jsr/n @@(,TBR)", "10000011i8p4....", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "PR = PH2T (PC + 2);", + "if (~doprofile)", + " gotcall (PR, i + TBR);", + "SET_NIP (PT2H (i + TBR));", + }, - { "", "n", "ldc ,GBR", "0100nnnn00011110", - "GBR = R[n];", + { "", "n", "ldc ,", "0100nnnnmmmm1110", + "CREG (m) = R[n];", "/* FIXME: user mode */", }, { "", "n", "ldc ,SR", "0100nnnn00001110", "SET_SR (R[n]);", "/* FIXME: user mode */", }, - { "", "n", "ldc ,VBR", "0100nnnn00101110", - "VBR = R[n];", - "/* FIXME: user mode */", - }, - { "", "n", "ldc ,SSR", "0100nnnn00111110", - "SSR = R[n];", - "/* FIXME: user mode */", - }, - { "", "n", "ldc ,SPC", "0100nnnn01001110", - "SPC = R[n];", - "/* FIXME: user mode */", + { "", "n", "ldc ,MOD", "0100nnnn01011110", + "SET_MOD (R[n]);", }, -#if 0 { "", "n", "ldc ,DBR", "0100nnnn11111010", - "DBR = R[n];", - "/* FIXME: user mode */", - }, -#endif - { "", "n", "ldc ,R0_BANK", "0100nnnn10001110", - "SET_Rn_BANK (0, R[n]);", - "/* FIXME: user mode */", - }, - { "", "n", "ldc ,R1_BANK", "0100nnnn10011110", - "SET_Rn_BANK (1, R[n]);", - "/* FIXME: user mode */", - }, - { "", "n", "ldc ,R2_BANK", "0100nnnn10101110", - "SET_Rn_BANK (2, R[n]);", - "/* FIXME: user mode */", - }, - { "", "n", "ldc ,R3_BANK", "0100nnnn10111110", - "SET_Rn_BANK (3, R[n]);", - "/* FIXME: user mode */", - }, - { "", "n", "ldc ,R4_BANK", "0100nnnn11001110", - "SET_Rn_BANK (4, R[n]);", - "/* FIXME: user mode */", - }, - { "", "n", "ldc ,R5_BANK", "0100nnnn11011110", - "SET_Rn_BANK (5, R[n]);", - "/* FIXME: user mode */", + "if (SR_MD)", + " DBR = R[n]; /* priv mode */", + "else", + " RAISE_EXCEPTION (SIGILL); /* user mode */", }, - { "", "n", "ldc ,R6_BANK", "0100nnnn11101110", - "SET_Rn_BANK (6, R[n]);", - "/* FIXME: user mode */", + { "", "n", "ldc ,SGR", "0100nnnn00111010", + "if (SR_MD)", + " SGR = R[n]; /* priv mode */", + "else", + " RAISE_EXCEPTION (SIGILL); /* user mode */", }, - { "", "n", "ldc ,R7_BANK", "0100nnnn11111110", - "SET_Rn_BANK (7, R[n]);", - "/* FIXME: user mode */", + { "", "n", "ldc ,TBR", "0100nnnn01001010", + "if (SR_MD)", /* FIXME? */ + " TBR = R[n]; /* priv mode */", + "else", + " RAISE_EXCEPTION (SIGILL); /* user mode */", }, - { "", "n", "ldc.l @+,GBR", "0100nnnn00010111", + { "n", "n", "ldc.l @+,", "0100nnnnmmmm0111", "MA (1);", - "GBR = RLAT (R[n]);", + "CREG (m) = RLAT (R[n]);", "R[n] += 4;", "/* FIXME: user mode */", }, - { "", "n", "ldc.l @+,SR", "0100nnnn00000111", + { "n", "n", "ldc.l @+,SR", "0100nnnn00000111", "MA (1);", "SET_SR (RLAT (R[n]));", "R[n] += 4;", "/* FIXME: user mode */", }, - { "", "n", "ldc.l @+,VBR", "0100nnnn00100111", - "MA (1);", - "VBR = RLAT (R[n]);", - "R[n] += 4;", - "/* FIXME: user mode */", - }, - { "", "n", "ldc.l @+,SSR", "0100nnnn00110111", - "MA (1);", - "SSR = RLAT (R[n]);", - "R[n] += 4;", - "/* FIXME: user mode */", - }, - { "", "n", "ldc.l @+,SPC", "0100nnnn01000111", - "MA (1);", - "SPC = RLAT (R[n]);", - "R[n] += 4;", - "/* FIXME: user mode */", - }, -#if 0 - { "", "n", "ldc.l @+,DBR", "0100nnnn11110110", - "MA (1);", - "DBR = RLAT (R[n]);", - "R[n] += 4;", - "/* FIXME: user mode */", - }, -#endif - { "", "n", "ldc.l @+,R0_BANK", "0100nnnn10000111", - "MA (1);", - "SET_Rn_BANK (0, RLAT (R[n]));", - "R[n] += 4;", - "/* FIXME: user mode */", - }, - { "", "n", "ldc.l @+,R1_BANK", "0100nnnn10010111", + { "n", "n", "ldc.l @+,MOD", "0100nnnn01010111", "MA (1);", - "SET_Rn_BANK (1, RLAT (R[n]));", + "SET_MOD (RLAT (R[n]));", "R[n] += 4;", - "/* FIXME: user mode */", }, - { "", "n", "ldc.l @+,R2_BANK", "0100nnnn10100111", - "MA (1);", - "SET_Rn_BANK (2, RLAT (R[n]));", - "R[n] += 4;", - "/* FIXME: user mode */", + { "n", "n", "ldc.l @+,DBR", "0100nnnn11110110", + "if (SR_MD)", + "{ /* priv mode */", + " MA (1);", + " DBR = RLAT (R[n]);", + " R[n] += 4;", + "}", + "else", + " RAISE_EXCEPTION (SIGILL); /* user mode */", }, - { "", "n", "ldc.l @+,R3_BANK", "0100nnnn10110111", - "MA (1);", - "SET_Rn_BANK (3, RLAT (R[n]));", - "R[n] += 4;", - "/* FIXME: user mode */", + { "n", "n", "ldc.l @+,SGR", "0100nnnn00110110", + "if (SR_MD)", + "{ /* priv mode */", + " MA (1);", + " SGR = RLAT (R[n]);", + " R[n] += 4;", + "}", + "else", + " RAISE_EXCEPTION (SIGILL); /* user mode */", }, - { "", "n", "ldc.l @+,R4_BANK", "0100nnnn11000111", - "MA (1);", - "SET_Rn_BANK (4, RLAT (R[n]));", - "R[n] += 4;", - "/* FIXME: user mode */", + + /* sh-dsp */ + { "", "", "ldre @(,PC)", "10001110i8p1....", + "RE = SEXT (i) * 2 + 4 + PH2T (PC);", }, - { "", "n", "ldc.l @+,R5_BANK", "0100nnnn11010111", - "MA (1);", - "SET_Rn_BANK (5, RLAT (R[n]));", - "R[n] += 4;", - "/* FIXME: user mode */", + { "", "", "ldrs @(,PC)", "10001100i8p1....", + "RS = SEXT (i) * 2 + 4 + PH2T (PC);", }, - { "", "n", "ldc.l @+,R6_BANK", "0100nnnn11100111", - "MA (1);", - "SET_Rn_BANK (6, RLAT (R[n]));", - "R[n] += 4;", - "/* FIXME: user mode */", + + /* sh4a */ + { "", "n", "ldrc ", "0100nnnn00110100", + "SET_RC (R[n]);", + "loop = get_loop_bounds_ext (RS, RE, memory, mem_end, maskw, endianw);", + "CHECK_INSN_PTR (insn_ptr);", + "RE |= 1;", }, - { "", "n", "ldc.l @+,R7_BANK", "0100nnnn11110111", - "MA (1);", - "SET_Rn_BANK (7, RLAT (R[n]));", - "R[n] += 4;", - "/* FIXME: user mode */", + { "", "", "ldrc #", "10001010i8*1....", + "SET_RC (i);", + "loop = get_loop_bounds_ext (RS, RE, memory, mem_end, maskw, endianw);", + "CHECK_INSN_PTR (insn_ptr);", + "RE |= 1;", }, - /* sh3e */ - { "", "", "lds ,FPUL", "0100nnnn01011010", - "FPUL = R[n];", + { "", "n", "lds ,", "0100nnnnssss1010", + "SREG (m) = R[n];", }, - /* sh3e */ - { "", "", "lds.l @+,FPUL", "0100nnnn01010110", + { "n", "n", "lds.l @+,", "0100nnnnssss0110", "MA (1);", - "FPUL = RLAT(R[n]);", + "SREG (m) = RLAT (R[n]);", "R[n] += 4;", }, - /* sh3e */ - { "", "", "lds ,FPSCR", "0100nnnn01101010", - "SET_FPSCR(R[n]);", + /* sh2e / sh-dsp (lds ,DSR) */ + { "", "n", "lds ,FPSCR", "0100nnnn01101010", + "SET_FPSCR (R[n]);", }, - /* sh3e */ - { "", "", "lds.l @+,FPSCR", "0100nnnn01100110", + /* sh2e / sh-dsp (lds.l @+,DSR) */ + { "n", "n", "lds.l @+,FPSCR", "0100nnnn01100110", "MA (1);", - "SET_FPSCR (RLAT(R[n]));", + "SET_FPSCR (RLAT (R[n]));", "R[n] += 4;", }, - { "", "n", "lds ,MACH", "0100nnnn00001010", - "MACH = R[n];", - }, - { "", "n", "lds ,MACL", "0100nnnn00011010", - "MACL= R[n];", - }, - { "", "n", "lds ,PR", "0100nnnn00101010", - "PR = R[n];", - }, - { "", "n", "lds.l @+,MACH", "0100nnnn00000110", - "MA (1);", - "MACH = SEXT(RLAT(R[n]));", - "R[n]+=4;", - }, - { "", "n", "lds.l @+,MACL", "0100nnnn00010110", - "MA (1);", - "MACL = RLAT(R[n]);", - "R[n]+=4;", - }, - { "", "n", "lds.l @+,PR", "0100nnnn00100110", - "MA (1);", - "PR = RLAT(R[n]);", - "R[n]+=4;;", - }, - { "", "", "ldtlb", "0000000000111000", - "/* FIXME: XXX*/ abort();", + "/* We don't implement cache or tlb, so this is a noop. */", }, - { "", "nm", "mac.l @+,@+", "0000nnnnmmmm1111", - "trap (255,R0,memory,maskl,maskw,little_endian);", - "/* FIXME: mac.l support */", + { "nm", "nm", "mac.l @+,@+", "0000nnnnmmmm1111", + "macl (&R0, memory, n, m);", }, - { "", "nm", "mac.w @+,@+", "0100nnnnmmmm1111", - "macw(R0,memory,n,m);", + { "nm", "nm", "mac.w @+,@+", "0100nnnnmmmm1111", + "macw (&R0, memory, n, m, endianw);", }, { "n", "", "mov #,", "1110nnnni8*1....", - "R[n] = SEXT(i);", + "R[n] = SEXT (i);", + }, + { "n", "", "movi20 #,", "0000nnnni8*10000", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "R[n] = ((i << 24) >> 12) | RIAT (nip);", + "SET_NIP (nip + 2); /* Consume 2 more bytes. */", + }, + { "n", "", "movi20s #,", "0000nnnni8*10001", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "R[n] = ((((i & 0xf0) << 24) >> 12) | RIAT (nip)) << 8;", + "SET_NIP (nip + 2); /* Consume 2 more bytes. */", }, { "n", "m", "mov ,", "0110nnnnmmmm0011", "R[n] = R[m];", @@ -724,12 +959,18 @@ op tab[] = "R[n] = RSBAT (R0 + R[m]);", "L (n);", }, - { "n", "m", "mov.b @+,", "0110nnnnmmmm0100", + { "nm", "m", "mov.b @+,", "0110nnnnmmmm0100", "MA (1);", "R[n] = RSBAT (R[m]);", "R[m] += 1;", "L (n);", }, + { "0n", "n", "mov.b @-,R0", "0100nnnn11001011", + "MA (1);", + "R[n] -= 1;", + "R0 = RSBAT (R[n]);", + "L (0);", + }, { "", "mn", "mov.b ,@", "0010nnnnmmmm0000", "MA (1);", "WBAT (R[n], R[m]);", @@ -746,10 +987,17 @@ op tab[] = "MA (1);", "WBAT (R[n] + R0, R[m]);", }, - { "", "nm", "mov.b ,@-", "0010nnnnmmmm0100", + { "n", "nm", "mov.b ,@-", "0010nnnnmmmm0100", + /* Allow for the case where m == n. */ + "int t = R[m];", "MA (1);", "R[n] -= 1;", - "WBAT (R[n], R[m]);", + "WBAT (R[n], t);", + }, + { "n", "n0", "mov.b R0,@+", "0100nnnn10001011", + "MA (1);", + "WBAT (R[n], R0);", + "R[n] += 1;", }, { "n", "m", "mov.b @,", "0110nnnnmmmm0000", "MA (1);", @@ -763,8 +1011,9 @@ op tab[] = "L (0);", }, { "n", "", "mov.l @(,PC),", "1101nnnni8p4....", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", "MA (1);", - "R[n] = RLAT((PC & ~3) + 4 + i);", + "R[n] = RLAT ((PH2T (PC) & ~3) + 4 + i);", "L (n);", }, { "n", "m", "mov.l @(,),", "0101nnnnmmmmi4*4", @@ -783,6 +1032,12 @@ op tab[] = "R[m] += 4;", "L (n);", }, + { "0n", "n", "mov.l @-,R0", "0100nnnn11101011", + "MA (1);", + "R[n] -= 4;", + "R0 = RLAT (R[n]);", + "L (0);", + }, { "n", "m", "mov.l @,", "0110nnnnmmmm0010", "MA (1);", "R[n] = RLAT (R[m]);", @@ -800,10 +1055,17 @@ op tab[] = "MA (1);", "WLAT (R0 + R[n], R[m]);", }, - { "", "nm", "mov.l ,@-", "0010nnnnmmmm0110", + { "n", "nm", "mov.l ,@-", "0010nnnnmmmm0110", + /* Allow for the case where m == n. */ + "int t = R[m];", "MA (1) ;", "R[n] -= 4;", - "WLAT (R[n], R[m]);", + "WLAT (R[n], t);", + }, + { "n", "n0", "mov.l R0,@+", "0100nnnn10101011", + "MA (1) ;", + "WLAT (R[n], R0);", + "R[n] += 4;", }, { "", "nm", "mov.l ,@", "0010nnnnmmmm0010", "MA (1);", @@ -811,13 +1073,14 @@ op tab[] = }, { "0", "", "mov.w @(,GBR),R0", "11000101i8*2....", - "MA (1)", - ";R0 = RSWAT (i + GBR);", + "MA (1);", + "R0 = RSWAT (i + GBR);", "L (0);", }, { "n", "", "mov.w @(,PC),", "1001nnnni8p2....", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", "MA (1);", - "R[n] = RSWAT (PC + 4 + i);", + "R[n] = RSWAT (PH2T (PC + 4 + i));", "L (n);", }, { "0", "m", "mov.w @(,),R0", "10000101mmmmi4*2", @@ -836,6 +1099,12 @@ op tab[] = "R[m] += 2;", "L (n);", }, + { "0n", "n", "mov.w @-,R0", "0100nnnn11011011", + "MA (1);", + "R[n] -= 2;", + "R0 = RSWAT (R[n]);", + "L (0);", + }, { "n", "m", "mov.w @,", "0110nnnnmmmm0001", "MA (1);", "R[n] = RSWAT (R[m]);", @@ -854,9 +1123,16 @@ op tab[] = "WWAT (R0 + R[n], R[m]);", }, { "n", "mn", "mov.w ,@-", "0010nnnnmmmm0101", + /* Allow for the case where m == n. */ + "int t = R[m];", "MA (1);", "R[n] -= 2;", - "WWAT (R[n], R[m]);", + "WWAT (R[n], t);", + }, + { "n", "0n", "mov.w R0,@+", "0100nnnn10011011", + "MA (1);", + "WWAT (R[n], R0);", + "R[n] += 2;", }, { "", "nm", "mov.w ,@", "0010nnnnmmmm0001", "MA (1);", @@ -864,22 +1140,63 @@ op tab[] = }, { "0", "", "mova @(,PC),R0", "11000111i8p4....", - "R0 = ((i + 4 + PC) & ~0x3);", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "R0 = ((i + 4 + PH2T (PC)) & ~0x3);", + }, + + { "", "n0", "movca.l R0, @", "0000nnnn11000011", + "/* We don't simulate cache, so this insn is identical to mov. */", + "MA (1);", + "WLAT (R[n], R[0]);", + }, + + { "", "n0", "movco.l R0, @", "0000nnnn01110011", + "/* LDST -> T */", + "SET_SR_T (LDST);", + "/* if (T) R0 -> (Rn) */", + "if (T)", + " WLAT (R[n], R[0]);", + "/* 0 -> LDST */", + "SET_LDST (0);", }, - { "0", "", "movca.l @R0, ", "0000nnnn11000011", - "/* FIXME: Not implemented */", - "saved_state.asregs.exception = SIGILL;", + { "0", "n", "movli.l @, R0", "0000nnnn01100011", + "/* 1 -> LDST */", + "SET_LDST (1);", + "/* (Rn) -> R0 */", + "R[0] = RLAT (R[n]);", + "/* if (interrupt/exception) 0 -> LDST */", + "/* (we don't simulate asynchronous interrupts/exceptions) */", }, { "n", "", "movt ", "0000nnnn00101001", "R[n] = T;", }, - + { "", "", "movrt ", "0000nnnn00111001", + "R[n] = (T == 0);", + }, + { "0", "n", "movua.l @,R0", "0100nnnn10101001", + "int regn = R[n];", + "int e = target_little_endian ? 3 : 0;", + "MA (1);", + "R[0] = (RBAT (regn + (0^e)) << 24) + (RBAT (regn + (1^e)) << 16) + ", + " (RBAT (regn + (2^e)) << 8) + RBAT (regn + (3^e));", + "L (0);", + }, + { "0n", "n", "movua.l @+,R0", "0100nnnn11101001", + "int regn = R[n];", + "int e = target_little_endian ? 3 : 0;", + "MA (1);", + "R[0] = (RBAT (regn + (0^e)) << 24) + (RBAT (regn + (1^e)) << 16) + ", + " (RBAT (regn + (2^e)) << 8) + RBAT (regn + (3^e));", + "R[n] += 4;", + "L (0);", + }, { "", "mn", "mul.l ,", "0000nnnnmmmm0111", - "MACL = ((int)R[n]) * ((int)R[m]);", + "MACL = ((int) R[n]) * ((int) R[m]);", }, -#if 0 +#if 0 /* FIXME: The above cast to int is not really portable. + It should be replaced by a SEXT32 macro. */ { "", "nm", "mul.l ,", "0000nnnnmmmm0111", "MACL = R[n] * R[m];", }, @@ -887,13 +1204,13 @@ op tab[] = /* muls.w - see muls */ { "", "mn", "muls ,", "0010nnnnmmmm1111", - "MACL = ((int)(short)R[n]) * ((int)(short)R[m]);", + "MACL = ((int) (short) R[n]) * ((int) (short) R[m]);", }, /* mulu.w - see mulu */ { "", "mn", "mulu ,", "0010nnnnmmmm1110", - "MACL = (((unsigned int)(unsigned short)R[n])", - " * ((unsigned int)(unsigned short)R[m]));", + "MACL = (((unsigned int) (unsigned short) R[n])", + " * ((unsigned int) (unsigned short) R[m]));", }, { "n", "m", "neg ,", "0110nnnnmmmm1011", @@ -915,18 +1232,24 @@ op tab[] = "R[n] = ~R[m];", }, - { "0", "", "ocbi @", "0000nnnn10010011", - "/* FIXME: Not implemented */", - "saved_state.asregs.exception = SIGILL;", + /* sh4a */ + { "", "n", "icbi @", "0000nnnn11100011", + "/* Except for the effect on the cache - which is not simulated -", + " this is like a nop. */", + }, + + { "", "n", "ocbi @", "0000nnnn10010011", + "RSBAT (R[n]); /* Take exceptions like byte load, otherwise noop. */", + "/* FIXME: Cache not implemented */", }, - { "0", "", "ocbp @", "0000nnnn10100011", - "/* FIXME: Not implemented */", - "saved_state.asregs.exception = SIGILL;", + { "", "n", "ocbp @", "0000nnnn10100011", + "RSBAT (R[n]); /* Take exceptions like byte load, otherwise noop. */", + "/* FIXME: Cache not implemented */", }, { "", "n", "ocbwb @", "0000nnnn10110011", - "RSBAT (R[n]); /* Take exceptions like byte load. */", + "RSBAT (R[n]); /* Take exceptions like byte load, otherwise noop. */", "/* FIXME: Cache not implemented */", }, @@ -946,6 +1269,18 @@ op tab[] = " this is like a nop. */", }, + /* sh4a */ + { "", "n", "prefi @", "0000nnnn11010011", + "/* Except for the effect on the cache - which is not simulated -", + " this is like a nop. */", + }, + + /* sh4a */ + { "", "", "synco", "0000000010101011", + "/* Except for the effect on the pipeline - which is not simulated -", + " this is like a nop. */", + }, + { "n", "n", "rotcl ", "0100nnnn00100100", "ult = R[n] < 0;", "R[n] = (R[n] << 1) | T;", @@ -974,23 +1309,67 @@ op tab[] = #if 0 /* SH-[12] */ "int tmp = PC;", - "nia = RLAT (R[15]) + 2;", + "SET_NIP (PT2H (RLAT (R[15]) + 2));", "R[15] += 4;", "SET_SR (RLAT (R[15]) & 0x3f3);", "R[15] += 4;", "Delay_Slot (PC + 2);", #else - "nia = SPC;", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", "SET_SR (SSR);", + "SET_NIP (PT2H (SPC));", + "cycles += 2;", "Delay_Slot (PC + 2);", #endif }, { "", "", "rts", "0000000000001011", - "nia = PR;", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "SET_NIP (PT2H (PR));", + "cycles += 2;", "Delay_Slot (PC + 2);", }, - + { "", "", "rts/n", "0000000001101011", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "SET_NIP (PT2H (PR));", + }, + { "0", "n", "rtv/n ", "0000nnnn01111011", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "R0 = R[n];", + "L (0);", + "SET_NIP (PT2H (PR));", + }, + + /* sh4a */ + { "", "", "setdmx", "0000000010011000", + "saved_state.asregs.cregs.named.sr |= SR_MASK_DMX;" + "saved_state.asregs.cregs.named.sr &= ~SR_MASK_DMY;" + }, + + /* sh4a */ + { "", "", "setdmy", "0000000011001000", + "saved_state.asregs.cregs.named.sr |= SR_MASK_DMY;" + "saved_state.asregs.cregs.named.sr &= ~SR_MASK_DMX;" + }, + + /* sh-dsp */ + { "", "n", "setrc ", "0100nnnn00010100", + "SET_RC (R[n]);", + }, + { "", "", "setrc #", "10000010i8*1....", + /* It would be more realistic to let loop_start point to some static + memory that contains an illegal opcode and then give a bus error when + the loop is eventually encountered, but it seems not only simpler, + but also more debugging-friendly to just catch the failure here. */ + "if (BUSERROR (RS | RE, maskw))", + " RAISE_EXCEPTION (SIGILL);", + "else {", + " SET_RC (i);", + " loop = get_loop_bounds (RS, RE, memory, mem_end, maskw, endianw);", + " CHECK_INSN_PTR (insn_ptr);", + "}", + }, + { "", "", "sets", "0000000001011000", "SET_SR_S (1);", }, @@ -1000,7 +1379,7 @@ op tab[] = }, { "n", "mn", "shad ,", "0100nnnnmmmm1100", - "R[n] = (R[m] < 0) ? (R[n] >> ((-R[m])&0x1f)) : (R[n] << (R[m] & 0x1f));", + "R[n] = (R[m] < 0) ? (R[m]&0x1f ? R[n] >> ((-R[m])&0x1f) : R[n] >> 31) : (R[n] << (R[m] & 0x1f));", }, { "n", "n", "shal ", "0100nnnn00100000", @@ -1014,7 +1393,7 @@ op tab[] = }, { "n", "mn", "shld ,", "0100nnnnmmmm1101", - "R[n] = (R[m] < 0) ? (UR[n] >> ((-R[m])&0x1f)): (R[n] << (R[m] & 0x1f));", + "R[n] = (R[m] < 0) ? (R[m]&0x1f ? UR[n] >> ((-R[m])&0x1f) : 0): (R[n] << (R[m] & 0x1f));", }, { "n", "n", "shll ", "0100nnnn00000000", @@ -1048,179 +1427,64 @@ op tab[] = }, { "", "", "sleep", "0000000000011011", - "trap (0xc3, R0, memory, maskl, maskw, little_endian);", - "nia = PC;", + "nip += trap (sd, 0xc3, &R0, PC, memory, maskl, maskw, endianw);", }, - { "n", "", "stc GBR,", "0000nnnn00010010", - "R[n] = GBR;", - }, - { "n", "", "stc SR,", "0000nnnn00000010", - "R[n] = GET_SR ();", - }, - { "n", "", "stc VBR,", "0000nnnn00100010", - "R[n] = VBR;", - }, - { "n", "", "stc SSR,", "0000nnnn00110010", - "R[n] = SSR;", + { "n", "", "stc ,", "0000nnnnmmmm0010", + "R[n] = CREG (m);", }, - { "n", "", "stc SPC,", "0000nnnn01000010", - "R[n] = SPC;", - }, -#if 0 + { "n", "", "stc SGR,", "0000nnnn00111010", - "R[n] = SGR;", + "if (SR_MD)", + " R[n] = SGR; /* priv mode */", + "else", + " RAISE_EXCEPTION (SIGILL); /* user mode */", }, { "n", "", "stc DBR,", "0000nnnn11111010", - "R[n] = DBR;", - }, -#endif - { "n", "", "stc R0_BANK,", "0000nnnn10000010", - "R[n] = Rn_BANK (0);", - }, - { "n", "", "stc R1_BANK,", "0000nnnn10010010", - "R[n] = Rn_BANK (1);", - }, - { "n", "", "stc R2_BANK,", "0000nnnn10100010", - "R[n] = Rn_BANK (2);", - }, - { "n", "", "stc R3_BANK,", "0000nnnn10110010", - "R[n] = Rn_BANK (3);", - }, - { "n", "", "stc R4_BANK,", "0000nnnn11000010", - "R[n] = Rn_BANK (4);", - }, - { "n", "", "stc R5_BANK,", "0000nnnn11010010", - "R[n] = Rn_BANK (5);", - }, - { "n", "", "stc R6_BANK,", "0000nnnn11100010", - "R[n] = Rn_BANK (6);", - }, - { "n", "", "stc R7_BANK,", "0000nnnn11110010", - "R[n] = Rn_BANK (7);", - }, - { "n", "n", "stc.l GBR,@-", "0100nnnn00010011", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], GBR);;", - }, - { "n", "n", "stc.l SR,@-", "0100nnnn00000011", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], GET_SR());", - }, - { "n", "n", "stc.l VBR,@-", "0100nnnn00100011", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], VBR);", + "if (SR_MD)", + " R[n] = DBR; /* priv mode */", + "else", + " RAISE_EXCEPTION (SIGILL); /* user mode */", }, - { "n", "n", "stc.l SSR,@-", "0100nnnn00110011", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], SSR);", + { "n", "", "stc TBR,", "0000nnnn01001010", + "if (SR_MD)", /* FIXME? */ + " R[n] = TBR; /* priv mode */", + "else", + " RAISE_EXCEPTION (SIGILL); /* user mode */", }, - { "n", "n", "stc.l SPC,@-", "0100nnnn01000011", + { "n", "n", "stc.l ,@-", "0100nnnnmmmm0011", "MA (1);", "R[n] -= 4;", - "WLAT (R[n], SPC);", + "WLAT (R[n], CREG (m));", }, -#if 0 { "n", "n", "stc.l SGR,@-", "0100nnnn00110010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], SGR);", + "if (SR_MD)", + "{ /* priv mode */", + " MA (1);", + " R[n] -= 4;", + " WLAT (R[n], SGR);", + "}", + "else", + " RAISE_EXCEPTION (SIGILL); /* user mode */", }, { "n", "n", "stc.l DBR,@-", "0100nnnn11110010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], DBR);", - }, -#endif - { "n", "", "stc R0_BANK,@-", "0100nnnn10000010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], Rn_BANK (0));", - }, - { "n", "", "stc R1_BANK,@-", "0100nnnn10010010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], Rn_BANK (1));", - }, - { "n", "", "stc R2_BANK,@-", "0100nnnn10100010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], Rn_BANK (2));", - }, - { "n", "", "stc R3_BANK,@-", "0100nnnn10110010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], Rn_BANK (3));", - }, - { "n", "", "stc R4_BANK,@-", "0100nnnn11000010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], Rn_BANK (4));", - }, - { "n", "", "stc R5_BANK,@-", "0100nnnn11010010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], Rn_BANK (5));", - }, - { "n", "", "stc R6_BANK,@-", "0100nnnn11100010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], Rn_BANK (6));", - }, - { "n", "", "stc R7_BANK,@-", "0100nnnn11110010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], Rn_BANK (7));", - }, - - /* sh3e */ - { "", "", "sts FPUL,", "0000nnnn01011010", - "R[n] = FPUL;", - }, - /* sh3e */ - { "", "", "sts.l FPUL,@-", "0100nnnn01010010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], FPUL);", - }, - /* sh3e */ - { "", "", "sts FPSCR,", "0000nnnn01101010", - "R[n] = GET_FPSCR ();", - }, - /* sh3e */ - { "", "", "sts.l FPSCR,@-", "0100nnnn01100010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], GET_FPSCR ());", + "if (SR_MD)", + "{ /* priv mode */", + " MA (1);", + " R[n] -= 4;", + " WLAT (R[n], DBR);", + "}", + "else", + " RAISE_EXCEPTION (SIGILL); /* user mode */", }, - { "n", "", "sts MACH,", "0000nnnn00001010", - "R[n] = MACH;", - }, - { "n", "", "sts MACL,", "0000nnnn00011010", - "R[n] = MACL;", - }, - { "n", "", "sts PR,", "0000nnnn00101010", - "R[n] = PR;", - }, - { "n", "n", "sts.l MACH,@-", "0100nnnn00000010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], MACH);", + { "n", "", "sts ,", "0000nnnnssss1010", + "R[n] = SREG (m);", }, - { "n", "n", "sts.l MACL,@-", "0100nnnn00010010", + { "n", "n", "sts.l ,@-", "0100nnnnssss0010", "MA (1);", "R[n] -= 4;", - "WLAT (R[n], MACL);", - }, - { "n", "n", "sts.l PR,@-", "0100nnnn00100010", - "MA (1);", - "R[n] -= 4;", - "WLAT (R[n], PR);", + "WLAT (R[n], SREG (m));", }, { "n", "nm", "sub ,", "0011nnnnmmmm1000", @@ -1252,43 +1516,32 @@ op tab[] = { "", "n", "tas.b @", "0100nnnn00011011", "MA (1);", - "ult = RBAT(R[n]);", + "ult = RBAT (R[n]);", "SET_SR_T (ult == 0);", - "WBAT(R[n],ult|0x80);", + "WBAT (R[n],ult|0x80);", }, { "0", "", "trapa #", "11000011i8*1....", -#if 0 - /* SH-[12] */ "long imm = 0xff & i;", - "if (i==0xc3)", - " PC-=2;", - "if (i<20||i==34||i==0xc3)", - " trap(i,R,memory,maskl,maskw,little_endian);", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "if (i < 20 || i == 33 || i == 34 || i == 0xc3)", + " nip += trap (sd, i, &R0, PC, memory, maskl, maskw, endianw);", +#if 0 "else {", - " R[15]-=4;", - " WLAT(R[15],GET_SR());", - " R[15]-=4;", - " WLAT(R[15],PC+2);", - " PC=RLAT(VBR+(imm<<2))-2;", - "}", + /* SH-[12] */ + " R[15] -= 4;", + " WLAT (R[15], GET_SR ());", + " R[15] -= 4;", + " WLAT (R[15], PH2T (PC + 2));", #else - "if (i == 0xc3)", - " {", - " nia = PC;", - " trap (i, R, memory, maskl, maskw, little_endian);", - " }", - "else if (i < 20 || i==34 || i==0xc3)", - " trap (i, R, memory, maskl, maskw, little_endian);", "else if (!SR_BL) {", - " /* FIXME: TRA = (imm << 2); */", - " SSR = GET_SR();", - " SPC = PC + 2;", - " SET_SR (GET_SR() | SR_MASK_MD | SR_MASK_BL | SR_MASK_RB);", + " SSR = GET_SR ();", + " SPC = PH2T (PC + 2);", + " SET_SR (GET_SR () | SR_MASK_MD | SR_MASK_BL | SR_MASK_RB);", " /* FIXME: EXPEVT = 0x00000160; */", - " nia = VBR + 0x00000100;", - "}", #endif + " SET_NIP (PT2H (RLAT (VBR + (imm<<2))));", + "}", }, { "", "mn", "tst ,", "0010nnnnmmmm1000", @@ -1322,17 +1575,900 @@ op tab[] = #if 0 { "divs.l ,", "0100nnnnmmmm1110", - "divl(0,R[n],R[m]);", + "divl (0, R[n], R[m]);", }, { "divu.l ,", "0100nnnnmmmm1101", - "divl(0,R[n],R[m]);", + "divl (0, R[n], R[m]);", }, #endif {0, 0}}; +op movsxy_tab[] = +{ +/* If this is disabled, the simulator speeds up by about 12% on a + 450 MHz PIII - 9% with ACE_FAST. + Maybe we should have separate simulator loops? */ +#if 1 + { "n", "n", "movs.w @-,", "111101NNMMMM0000", + "MA (1);", + "R[n] -= 2;", + "DSP_R (m) = RSWAT (R[n]) << 16;", + "DSP_GRD (m) = SIGN32 (DSP_R (m));", + }, + { "", "n", "movs.w @,", "111101NNMMMM0100", + "MA (1);", + "DSP_R (m) = RSWAT (R[n]) << 16;", + "DSP_GRD (m) = SIGN32 (DSP_R (m));", + }, + { "n", "n", "movs.w @+,", "111101NNMMMM1000", + "MA (1);", + "DSP_R (m) = RSWAT (R[n]) << 16;", + "DSP_GRD (m) = SIGN32 (DSP_R (m));", + "R[n] += 2;", + }, + { "n", "n8","movs.w @+REG_8,", "111101NNMMMM1100", + "MA (1);", + "DSP_R (m) = RSWAT (R[n]) << 16;", + "DSP_GRD (m) = SIGN32 (DSP_R (m));", + "R[n] += R[8];", + }, + { "n", "n", "movs.w @-,", "111101NNGGGG0000", + "MA (1);", + "R[n] -= 2;", + "DSP_R (m) = RSWAT (R[n]);", + }, + { "", "n", "movs.w @,", "111101NNGGGG0100", + "MA (1);", + "DSP_R (m) = RSWAT (R[n]);", + }, + { "n", "n", "movs.w @+,", "111101NNGGGG1000", + "MA (1);", + "DSP_R (m) = RSWAT (R[n]);", + "R[n] += 2;", + }, + { "n", "n8","movs.w @+REG_8,", "111101NNGGGG1100", + "MA (1);", + "DSP_R (m) = RSWAT (R[n]);", + "R[n] += R[8];", + }, + { "n", "n", "movs.w ,@-", "111101NNMMMM0001", + "MA (1);", + "R[n] -= 2;", + "WWAT (R[n], DSP_R (m) >> 16);", + }, + { "", "n", "movs.w ,@", "111101NNMMMM0101", + "MA (1);", + "WWAT (R[n], DSP_R (m) >> 16);", + }, + { "n", "n", "movs.w ,@+", "111101NNMMMM1001", + "MA (1);", + "WWAT (R[n], DSP_R (m) >> 16);", + "R[n] += 2;", + }, + { "n", "n8","movs.w ,@+REG_8", "111101NNMMMM1101", + "MA (1);", + "WWAT (R[n], DSP_R (m) >> 16);", + "R[n] += R[8];", + }, + { "n", "n", "movs.w ,@-", "111101NNGGGG0001", + "MA (1);", + "R[n] -= 2;", + "WWAT (R[n], SEXT (DSP_R (m)));", + }, + { "", "n", "movs.w ,@", "111101NNGGGG0101", + "MA (1);", + "WWAT (R[n], SEXT (DSP_R (m)));", + }, + { "n", "n", "movs.w ,@+", "111101NNGGGG1001", + "MA (1);", + "WWAT (R[n], SEXT (DSP_R (m)));", + "R[n] += 2;", + }, + { "n", "n8","movs.w ,@+REG_8", "111101NNGGGG1101", + "MA (1);", + "WWAT (R[n], SEXT (DSP_R (m)));", + "R[n] += R[8];", + }, + { "n", "n", "movs.l @-,", "111101NNMMMM0010", + "MA (1);", + "R[n] -= 4;", + "DSP_R (m) = RLAT (R[n]);", + "DSP_GRD (m) = SIGN32 (DSP_R (m));", + }, + { "", "n", "movs.l @,", "111101NNMMMM0110", + "MA (1);", + "DSP_R (m) = RLAT (R[n]);", + "DSP_GRD (m) = SIGN32 (DSP_R (m));", + }, + { "n", "n", "movs.l @+,", "111101NNMMMM1010", + "MA (1);", + "DSP_R (m) = RLAT (R[n]);", + "DSP_GRD (m) = SIGN32 (DSP_R (m));", + "R[n] += 4;", + }, + { "n", "n8","movs.l @+REG_8,", "111101NNMMMM1110", + "MA (1);", + "DSP_R (m) = RLAT (R[n]);", + "DSP_GRD (m) = SIGN32 (DSP_R (m));", + "R[n] += R[8];", + }, + { "n", "n", "movs.l ,@-", "111101NNMMMM0011", + "MA (1);", + "R[n] -= 4;", + "WLAT (R[n], DSP_R (m));", + }, + { "", "n", "movs.l ,@", "111101NNMMMM0111", + "MA (1);", + "WLAT (R[n], DSP_R (m));", + }, + { "n", "n", "movs.l ,@+", "111101NNMMMM1011", + "MA (1);", + "WLAT (R[n], DSP_R (m));", + "R[n] += 4;", + }, + { "n", "n8","movs.l ,@+REG_8", "111101NNMMMM1111", + "MA (1);", + "WLAT (R[n], DSP_R (m));", + "R[n] += R[8];", + }, + { "n", "n", "movs.l ,@-", "111101NNGGGG0011", + "MA (1);", + "R[n] -= 4;", + "WLAT (R[n], SEXT (DSP_R (m)));", + }, + { "", "n", "movs.l ,@", "111101NNGGGG0111", + "MA (1);", + "WLAT (R[n], SEXT (DSP_R (m)));", + }, + { "n", "n", "movs.l ,@+", "111101NNGGGG1011", + "MA (1);", + "WLAT (R[n], SEXT (DSP_R (m)));", + "R[n] += 4;", + }, + { "n", "n8","movs.l ,@+REG_8", "111101NNGGGG1111", + "MA (1);", + "WLAT (R[n], SEXT (DSP_R (m)));", + "R[n] += R[8];", + }, + { "", "n", "movx.w @,", "111100xyXY0001??", + "DSP_R (m) = RSWAT (R[n]) << 16;", + "if (iword & 3)", + " {", + " iword &= 0xfd53; goto top;", + " }", + }, + { "", "n", "movx.l @,", "111100xyXY010100", + "DSP_R (m) = RLAT (R[n]);", + }, + { "n", "n", "movx.w @+,", "111100xyXY0010??", + "DSP_R (m) = RSWAT (R[n]) << 16;", + "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : 2;", + "if (iword & 3)", + " {", + " iword &= 0xfd53; goto top;", + " }", + }, + { "n", "n", "movx.l @+,", "111100xyXY011000", + "DSP_R (m) = RLAT (R[n]);", + "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : 4;", + }, + { "n", "n8","movx.w @+REG_8,", "111100xyXY0011??", + "DSP_R (m) = RSWAT (R[n]) << 16;", + "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : R[8];", + "if (iword & 3)", + " {", + " iword &= 0xfd53; goto top;", + " }", + }, + { "n", "n8","movx.l @+REG_8,", "111100xyXY011100", + "DSP_R (m) = RLAT (R[n]);", + "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : R[8];", + }, + { "", "n", "movx.w ,@", "111100xyax1001??", + "WWAT (R[n], DSP_R (m) >> 16);", + "if (iword & 3)", + " {", + " iword &= 0xfd53; goto top;", + " }", + }, + { "", "n", "movx.l ,@", "111100xyax110100", + "WLAT (R[n], DSP_R (m));", + }, + { "n", "n", "movx.w ,@+", "111100xyax1010??", + "WWAT (R[n], DSP_R (m) >> 16);", + "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : 2;", + "if (iword & 3)", + " {", + " iword &= 0xfd53; goto top;", + " }", + }, + { "n", "n", "movx.l ,@+", "111100xyax111000", + "WLAT (R[n], DSP_R (m));", + "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : 4;", + }, + { "n", "n8","movx.w ,@+REG_8","111100xyax1011??", + "WWAT (R[n], DSP_R (m) >> 16);", + "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : R[8];", + "if (iword & 3)", + " {", + " iword &= 0xfd53; goto top;", + " }", + }, + { "n", "n8","movx.l ,@+REG_8","111100xyax111100", + "WLAT (R[n], DSP_R (m));", + "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : R[8];", + }, + { "", "n", "movy.w @,", "111100yxYX000001", + "DSP_R (m) = RSWAT (R[n]) << 16;", + }, + { "n", "n", "movy.w @+,", "111100yxYX000010", + "DSP_R (m) = RSWAT (R[n]) << 16;", + "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : 2;", + }, + { "n", "n9","movy.w @+REG_9,", "111100yxYX000011", + "DSP_R (m) = RSWAT (R[n]) << 16;", + "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : R[9];", + }, + { "", "n", "movy.w ,@", "111100yxAY010001", + "WWAT (R[n], DSP_R (m) >> 16);", + }, + { "n", "n", "movy.w ,@+", "111100yxAY010010", + "WWAT (R[n], DSP_R (m) >> 16);", + "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : 2;", + }, + { "n", "n9", "movy.w ,@+REG_9", "111100yxAY010011", + "WWAT (R[n], DSP_R (m) >> 16);", + "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : R[9];", + }, + { "", "n", "movy.l @,", "111100yxYX100001", + "DSP_R (m) = RLAT (R[n]);", + }, + { "n", "n", "movy.l @+,", "111100yxYX100010", + "DSP_R (m) = RLAT (R[n]);", + "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : 4;", + }, + { "n", "n9","movy.l @+REG_9,", "111100yxYX100011", + "DSP_R (m) = RLAT (R[n]);", + "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : R[9];", + }, + { "", "n", "movy.l ,@", "111100yxAY110001", + "WLAT (R[n], DSP_R (m));", + }, + { "n", "n", "movy.l ,@+", "111100yxAY110010", + "WLAT (R[n], DSP_R (m));", + "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : 4;", + }, + { "n", "n9", "movy.l ,@+REG_9", "111100yxAY110011", + "WLAT (R[n], DSP_R (m));", + "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : R[9];", + }, + { "", "", "nopx nopy", "1111000000000000", + "/* nop */", + }, + { "", "", "ppi", "1111100000000000", + "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();", + "ppi_insn (RIAT (nip));", + "SET_NIP (nip + 2);", + "iword &= 0xf7ff; goto top;", + }, +#endif + {0, 0}}; + +op ppi_tab[] = +{ + { "","", "pshl #,dz", "00000iiim16.zzzz", + "int Sz = DSP_R (z) & 0xffff0000;", + "", + "if (i <= 16)", + " res = Sz << i;", + "else if (i >= 128 - 16)", + " res = (unsigned) Sz >> 128 - i; /* no sign extension */", + "else", + " {", + " RAISE_EXCEPTION (SIGILL);", + " return;", + " }", + "res &= 0xffff0000;", + "res_grd = 0;", + "goto logical;", + }, + { "","", "psha #,dz", "00010iiim32.zzzz", + "int Sz = DSP_R (z);", + "int Sz_grd = GET_DSP_GRD (z);", + "", + "if (i <= 32)", + " {", + " if (i == 32)", + " {", + " res = 0;", + " res_grd = Sz;", + " }", + " else", + " {", + " res = Sz << i;", + " res_grd = Sz_grd << i | (unsigned) Sz >> 32 - i;", + " }", + " res_grd = SEXT (res_grd);", + " carry = res_grd & 1;", + " }", + "else if (i >= 96)", + " {", + " i = 128 - i;", + " if (i == 32)", + " {", + " res_grd = SIGN32 (Sz_grd);", + " res = Sz_grd;", + " }", + " else", + " {", + " res = Sz >> i | Sz_grd << 32 - i;", + " res_grd = Sz_grd >> i;", + " }", + " carry = Sz >> (i - 1) & 1;", + " }", + "else", + " {", + " RAISE_EXCEPTION (SIGILL);", + " return;", + " }", + "COMPUTE_OVERFLOW;", + "greater_equal = 0;", + }, + { "","", "pmuls Se,Sf,Dg", "0100eeffxxyygguu", + "res = (DSP_R (e) >> 16) * (DSP_R (f) >> 16) * 2;", + "if (res == 0x80000000)", + " res = 0x7fffffff;", + "DSP_R (g) = res;", + "DSP_GRD (g) = SIGN32 (res);", + "return;", + }, + { "","", "psub Sx,Sy,Du pmuls Se,Sf,Dg", "0110eeffxxyygguu", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "int Sy = DSP_R (y);", + "int Sy_grd = SIGN32 (Sy);", + "", + "res = (DSP_R (e) >> 16) * (DSP_R (f) >> 16) * 2;", + "if (res == 0x80000000)", + " res = 0x7fffffff;", + "DSP_R (g) = res;", + "DSP_GRD (g) = SIGN32 (res);", + "", + "z = u;", + "res = Sx - Sy;", + "carry = (unsigned) res > (unsigned) Sx;", + "res_grd = Sx_grd - Sy_grd - carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + }, + { "","", "padd Sx,Sy,Du pmuls Se,Sf,Dg", "0111eeffxxyygguu", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "int Sy = DSP_R (y);", + "int Sy_grd = SIGN32 (Sy);", + "", + "res = (DSP_R (e) >> 16) * (DSP_R (f) >> 16) * 2;", + "if (res == 0x80000000)", + " res = 0x7fffffff;", + "DSP_R (g) = res;", + "DSP_GRD (g) = SIGN32 (res);", + "", + "z = u;", + "res = Sx + Sy;", + "carry = (unsigned) res < (unsigned) Sx;", + "res_grd = Sx_grd + Sy_grd + carry;", + "COMPUTE_OVERFLOW;", + }, + { "","", "psubc Sx,Sy,Dz", "10100000xxyyzzzz", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "int Sy = DSP_R (y);", + "int Sy_grd = SIGN32 (Sy);", + "", + "res = Sx - Sy - (DSR & 1);", + "carry = (unsigned) res > (unsigned) Sx || (res == Sx && Sy);", + "res_grd = Sx_grd + Sy_grd + carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + "DSR &= ~0xf1;\n", + "if (res || res_grd)\n", + " DSR |= greater_equal | res_grd >> 2 & DSR_MASK_N | overflow;\n", + "else\n", + " DSR |= DSR_MASK_Z | overflow;\n", + "DSR |= carry;\n", + "goto assign_z;\n", + }, + { "","", "paddc Sx,Sy,Dz", "10110000xxyyzzzz", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "int Sy = DSP_R (y);", + "int Sy_grd = SIGN32 (Sy);", + "", + "res = Sx + Sy + (DSR & 1);", + "carry = (unsigned) res < (unsigned) Sx || (res == Sx && Sy);", + "res_grd = Sx_grd + Sy_grd + carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + "DSR &= ~0xf1;\n", + "if (res || res_grd)\n", + " DSR |= greater_equal | res_grd >> 2 & DSR_MASK_N | overflow;\n", + "else\n", + " DSR |= DSR_MASK_Z | overflow;\n", + "DSR |= carry;\n", + "goto assign_z;\n", + }, + { "","", "pcmp Sx,Sy", "10000100xxyyzzzz", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "int Sy = DSP_R (y);", + "int Sy_grd = SIGN32 (Sy);", + "", + "z = 17; /* Ignore result. */", + "res = Sx - Sy;", + "carry = (unsigned) res > (unsigned) Sx;", + "res_grd = Sx_grd - Sy_grd - carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + }, + { "","", "pwsb Sx,Sy,Dz", "10100100xxyyzzzz", + }, + { "","", "pwad Sx,Sy,Dz", "10110100xxyyzzzz", + }, + { "","", "(if cc) pabs Sx,Dz", "100010ccxx01zzzz", + "/* FIXME: duplicate code pabs. */", + "res = DSP_R (x);", + "res_grd = GET_DSP_GRD (x);", + "if (res >= 0)", + " carry = 0;", + "else", + " {", + " res = -res;", + " carry = (res != 0); /* The manual has a bug here. */", + " res_grd = -res_grd - carry;", + " }", + "COMPUTE_OVERFLOW;", + "/* ??? The re-computing of overflow after", + " saturation processing is specific to pabs. */", + "overflow = res_grd != SIGN32 (res) ? DSR_MASK_V : 0;", + "ADD_SUB_GE;", + }, + { "","", "pabs Sx,Dz", "10001000xx..zzzz", + "res = DSP_R (x);", + "res_grd = GET_DSP_GRD (x);", + "if (res >= 0)", + " carry = 0;", + "else", + " {", + " res = -res;", + " carry = (res != 0); /* The manual has a bug here. */", + " res_grd = -res_grd - carry;", + " }", + "COMPUTE_OVERFLOW;", + "/* ??? The re-computing of overflow after", + " saturation processing is specific to pabs. */", + "overflow = res_grd != SIGN32 (res) ? DSR_MASK_V : 0;", + "ADD_SUB_GE;", + }, + + { "","", "(if cc) prnd Sx,Dz", "100110ccxx01zzzz", + "/* FIXME: duplicate code prnd. */", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "", + "res = (Sx + 0x8000) & 0xffff0000;", + "carry = (unsigned) res < (unsigned) Sx;", + "res_grd = Sx_grd + carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + }, + { "","", "prnd Sx,Dz", "10011000xx..zzzz", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "", + "res = (Sx + 0x8000) & 0xffff0000;", + "carry = (unsigned) res < (unsigned) Sx;", + "res_grd = Sx_grd + carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + }, + + { "","", "(if cc) pabs Sy,Dz", "101010cc01yyzzzz", + "/* FIXME: duplicate code pabs. */", + "res = DSP_R (y);", + "res_grd = 0;", + "overflow = 0;", + "greater_equal = DSR_MASK_G;", + "if (res >= 0)", + " carry = 0;", + "else", + " {", + " res = -res;", + " carry = 1;", + " if (res < 0)", + " {", + " if (S)", + " res = 0x7fffffff;", + " else", + " {", + " overflow = DSR_MASK_V;", + " greater_equal = 0;", + " }", + " }", + " }", + }, + { "","", "pabs Sy,Dz", "10101000..yyzzzz", + "res = DSP_R (y);", + "res_grd = 0;", + "overflow = 0;", + "greater_equal = DSR_MASK_G;", + "if (res >= 0)", + " carry = 0;", + "else", + " {", + " res = -res;", + " carry = 1;", + " if (res < 0)", + " {", + " if (S)", + " res = 0x7fffffff;", + " else", + " {", + " overflow = DSR_MASK_V;", + " greater_equal = 0;", + " }", + " }", + " }", + }, + { "","", "(if cc) prnd Sy,Dz", "101110cc01yyzzzz", + "/* FIXME: duplicate code prnd. */", + "int Sy = DSP_R (y);", + "int Sy_grd = SIGN32 (Sy);", + "", + "res = (Sy + 0x8000) & 0xffff0000;", + "carry = (unsigned) res < (unsigned) Sy;", + "res_grd = Sy_grd + carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + }, + { "","", "prnd Sy,Dz", "10111000..yyzzzz", + "int Sy = DSP_R (y);", + "int Sy_grd = SIGN32 (Sy);", + "", + "res = (Sy + 0x8000) & 0xffff0000;", + "carry = (unsigned) res < (unsigned) Sy;", + "res_grd = Sy_grd + carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + }, + { "","", "(if cc) pshl Sx,Sy,Dz", "100000ccxxyyzzzz", + "int Sx = DSP_R (x) & 0xffff0000;", + "int Sy = DSP_R (y) >> 16 & 0x7f;", + "", + "if (Sy <= 16)", + " res = Sx << Sy;", + "else if (Sy >= 128 - 16)", + " res = (unsigned) Sx >> 128 - Sy; /* no sign extension */", + "else", + " {", + " RAISE_EXCEPTION (SIGILL);", + " return;", + " }", + "goto cond_logical;", + }, + { "","", "(if cc) psha Sx,Sy,Dz", "100100ccxxyyzzzz", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "int Sy = DSP_R (y) >> 16 & 0x7f;", + "", + "if (Sy <= 32)", + " {", + " if (Sy == 32)", + " {", + " res = 0;", + " res_grd = Sx;", + " }", + " else", + " {", + " res = Sx << Sy;", + " res_grd = Sx_grd << Sy | (unsigned) Sx >> 32 - Sy;", + " }", + " res_grd = SEXT (res_grd);", + " carry = res_grd & 1;", + " }", + "else if (Sy >= 96)", + " {", + " Sy = 128 - Sy;", + " if (Sy == 32)", + " {", + " res_grd = SIGN32 (Sx_grd);", + " res = Sx_grd;", + " }", + " else", + " {", + " res = Sx >> Sy | Sx_grd << 32 - Sy;", + " res_grd = Sx_grd >> Sy;", + " }", + " carry = Sx >> (Sy - 1) & 1;", + " }", + "else", + " {", + " RAISE_EXCEPTION (SIGILL);", + " return;", + " }", + "COMPUTE_OVERFLOW;", + "greater_equal = 0;", + }, + { "","", "(if cc) psub Sx,Sy,Dz", "101000ccxxyyzzzz", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "int Sy = DSP_R (y);", + "int Sy_grd = SIGN32 (Sy);", + "", + "res = Sx - Sy;", + "carry = (unsigned) res > (unsigned) Sx;", + "res_grd = Sx_grd - Sy_grd - carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + }, + { "","", "(if cc) psub Sy,Sx,Dz", "100001ccxxyyzzzz", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "int Sy = DSP_R (y);", + "int Sy_grd = SIGN32 (Sy);", + "", + "res = Sy - Sx;", + "carry = (unsigned) res > (unsigned) Sy;", + "res_grd = Sy_grd - Sx_grd - carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + }, + { "","", "(if cc) padd Sx,Sy,Dz", "101100ccxxyyzzzz", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "int Sy = DSP_R (y);", + "int Sy_grd = SIGN32 (Sy);", + "", + "res = Sx + Sy;", + "carry = (unsigned) res < (unsigned) Sx;", + "res_grd = Sx_grd + Sy_grd + carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + }, + { "","", "(if cc) pand Sx,Sy,Dz", "100101ccxxyyzzzz", + "res = DSP_R (x) & DSP_R (y);", + "cond_logical:", + "res &= 0xffff0000;", + "res_grd = 0;", + "if (iword & 0x200)\n", + " goto assign_z;\n", + "logical:", + "carry = 0;", + "overflow = 0;", + "greater_equal = 0;", + "DSR &= ~0xf1;\n", + "if (res)\n", + " DSR |= res >> 26 & DSR_MASK_N;\n", + "else\n", + " DSR |= DSR_MASK_Z;\n", + "goto assign_dc;\n", + }, + { "","", "(if cc) pxor Sx,Sy,Dz", "101001ccxxyyzzzz", + "res = DSP_R (x) ^ DSP_R (y);", + "goto cond_logical;", + }, + { "","", "(if cc) por Sx,Sy,Dz", "101101ccxxyyzzzz", + "res = DSP_R (x) | DSP_R (y);", + "goto cond_logical;", + }, + { "","", "(if cc) pdec Sx,Dz", "100010ccxx..zzzz", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "", + "res = Sx - 0x10000;", + "carry = res > Sx;", + "res_grd = Sx_grd - carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + "res &= 0xffff0000;", + }, + { "","", "(if cc) pinc Sx,Dz", "100110ccxx..zzzz", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "", + "res = Sx + 0x10000;", + "carry = res < Sx;", + "res_grd = Sx_grd + carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + "res &= 0xffff0000;", + }, + { "","", "(if cc) pdec Sy,Dz", "101010cc..yyzzzz", + "int Sy = DSP_R (y);", + "int Sy_grd = SIGN32 (Sy);", + "", + "res = Sy - 0x10000;", + "carry = res > Sy;", + "res_grd = Sy_grd - carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + "res &= 0xffff0000;", + }, + { "","", "(if cc) pinc Sy,Dz", "101110cc..yyzzzz", + "int Sy = DSP_R (y);", + "int Sy_grd = SIGN32 (Sy);", + "", + "res = Sy + 0x10000;", + "carry = res < Sy;", + "res_grd = Sy_grd + carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + "res &= 0xffff0000;", + }, + { "","", "(if cc) pclr Dz", "100011cc....zzzz", + "res = 0;", + "res_grd = 0;", + "carry = 0;", + "overflow = 0;", + "greater_equal = 1;", + }, + { "","", "pclr Du pmuls Se,Sf,Dg", "0100eeff0001gguu", + "/* Do multiply. */", + "res = (DSP_R (e) >> 16) * (DSP_R (f) >> 16) * 2;", + "if (res == 0x80000000)", + " res = 0x7fffffff;", + "DSP_R (g) = res;", + "DSP_GRD (g) = SIGN32 (res);", + "/* FIXME: update DSR based on results of multiply! */", + "", + "/* Do clr. */", + "z = u;", + "res = 0;", + "res_grd = 0;", + "goto assign_z;", + }, + { "","", "(if cc) pdmsb Sx,Dz", "100111ccxx..zzzz", + "unsigned Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "int i = 16;", + "", + "if (Sx_grd < 0)", + " {", + " Sx_grd = ~Sx_grd;", + " Sx = ~Sx;", + " }", + "if (Sx_grd)", + " {", + " Sx = Sx_grd;", + " res = -2;", + " }", + "else if (Sx)", + " res = 30;", + "else", + " res = 31;", + "do", + " {", + " if (Sx & ~0 << i)", + " {", + " res -= i;", + " Sx >>= i;", + " }", + " }", + "while (i >>= 1);", + "res <<= 16;", + "res_grd = SIGN32 (res);", + "carry = 0;", + "overflow = 0;", + "ADD_SUB_GE;", + }, + { "","", "(if cc) pdmsb Sy,Dz", "101111cc..yyzzzz", + "unsigned Sy = DSP_R (y);", + "int i;", + "", + "if (Sy < 0)", + " Sy = ~Sy;", + "Sy <<= 1;", + "res = 31;", + "do", + " {", + " if (Sy & ~0 << i)", + " {", + " res -= i;", + " Sy >>= i;", + " }", + " }", + "while (i >>= 1);", + "res <<= 16;", + "res_grd = SIGN32 (res);", + "carry = 0;", + "overflow = 0;", + "ADD_SUB_GE;", + }, + { "","", "(if cc) pneg Sx,Dz", "110010ccxx..zzzz", + "int Sx = DSP_R (x);", + "int Sx_grd = GET_DSP_GRD (x);", + "", + "res = 0 - Sx;", + "carry = res != 0;", + "res_grd = 0 - Sx_grd - carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + }, + { "","", "(if cc) pcopy Sx,Dz", "110110ccxx..zzzz", + "res = DSP_R (x);", + "res_grd = GET_DSP_GRD (x);", + "carry = 0;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + }, + { "","", "(if cc) pneg Sy,Dz", "111010cc..yyzzzz", + "int Sy = DSP_R (y);", + "int Sy_grd = SIGN32 (Sy);", + "", + "res = 0 - Sy;", + "carry = res != 0;", + "res_grd = 0 - Sy_grd - carry;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + }, + { "","", "(if cc) pcopy Sy,Dz", "111110cc..yyzzzz", + "res = DSP_R (y);", + "res_grd = SIGN32 (res);", + "carry = 0;", + "COMPUTE_OVERFLOW;", + "ADD_SUB_GE;", + }, + { "","", "(if cc) psts MACH,Dz", "110011cc....zzzz", + "res = MACH;", + "res_grd = SIGN32 (res);", + "goto assign_z;", + }, + { "","", "(if cc) psts MACL,Dz", "110111cc....zzzz", + "res = MACL;", + "res_grd = SIGN32 (res);", + "goto assign_z;", + }, + { "","", "(if cc) plds Dz,MACH", "111011cc....zzzz", + "if (0xa05f >> z & 1)", + " RAISE_EXCEPTION (SIGILL);", + "else", + " MACH = DSP_R (z);", + "return;", + }, + { "","", "(if cc) plds Dz,MACL", "111111cc....zzzz", + "if (0xa05f >> z & 1)", + " RAISE_EXCEPTION (SIGILL);", + "else", + " MACL = DSP_R (z) = res;", + "return;", + }, + /* sh4a */ + { "","", "(if cc) pswap Sx,Dz", "100111ccxx01zzzz", + "int Sx = DSP_R (x);", + "", + "res = ((Sx & 0xffff) * 65536) + ((Sx >> 16) & 0xffff);", + "res_grd = GET_DSP_GRD (x);", + "carry = 0;", + "overflow = 0;", + "greater_equal = res & 0x80000000 ? 0 : DSR_MASK_G;", + }, + /* sh4a */ + { "","", "(if cc) pswap Sy,Dz", "101111cc01yyzzzz", + "int Sy = DSP_R (y);", + "", + "res = ((Sy & 0xffff) * 65536) + ((Sy >> 16) & 0xffff);", + "res_grd = SIGN32 (Sy);", + "carry = 0;", + "overflow = 0;", + "greater_equal = res & 0x80000000 ? 0 : DSR_MASK_G;", + }, + + {0, 0} +}; + /* Tables of things to put into enums for sh-opc.h */ -static char *nibble_type_list[] = +static +const char * const nibble_type_list[] = { "HEX_0", "HEX_1", @@ -1367,7 +2503,7 @@ static char *nibble_type_list[] = 0 }; static -char *arg_type_list[] = +const char * const arg_type_list[] = { "A_END", "A_BDISP12", @@ -1400,29 +2536,15 @@ char *arg_type_list[] = 0, }; -static void -make_enum_list (name, s) - char *name; - char **s; -{ - int i = 1; - printf ("typedef enum {\n"); - while (*s) - { - printf ("\t%s,\n", *s); - s++; - i++; - } - printf ("} %s;\n", name); -} - static int -qfunc (a, b) - op *a; - op *b; +qfunc (const void *va, const void *vb) { + const op *a = va; + const op *b = vb; char bufa[9]; char bufb[9]; + int diff; + memcpy (bufa, a->code, 4); memcpy (bufa + 4, a->code + 12, 4); bufa[8] = 0; @@ -1430,11 +2552,14 @@ qfunc (a, b) memcpy (bufb, b->code, 4); memcpy (bufb + 4, b->code + 12, 4); bufb[8] = 0; - return (strcmp (bufa, bufb)); + diff = strcmp (bufa, bufb); + /* Stabilize the sort, so that later entries can override more general + preceding entries. */ + return diff ? diff : a - b; } static void -sorttab () +sorttab (void) { op *p = tab; int len = 0; @@ -1448,119 +2573,7 @@ sorttab () } static void -printonmatch (ptr, a, rep) - char **ptr; - char *a; - char *rep; -{ - int l = strlen (a); - if (strncmp (*ptr, a, l) == 0) - { - printf ("%s", rep); - *ptr += l; - if (**ptr) - printf (","); - } -} - - -static -void -think (o) - op *o; -{ - char *n; - char *p; - - printf ("{\""); - n = o->name; - while (*n && *n != ' ') - { - printf ("%c", *n); - n++; - } - printf ("\",{"); - - p = n; - - if (!*p) - { - printf ("0"); - } - while (*p) - { - while (*p == ',' || *p == ' ') - p++; - printonmatch (&p, "#", "A_IMM"); - printonmatch (&p, "R0", "A_R0"); - printonmatch (&p, "", "A_REG_N"); - printonmatch (&p, "@+", "A_INC_N"); - printonmatch (&p, "@", "A_IND_N"); - printonmatch (&p, "@-", "A_DEC_N"); - printonmatch (&p, "", " A_REG_M"); - printonmatch (&p, "@+", "A_INC_M"); - printonmatch (&p, "@", "A_IND_M"); - printonmatch (&p, "@-", "A_DEC_M"); - printonmatch (&p, "@(,PC)", "A_DISP_PC"); - printonmatch (&p, "@(,)", "A_DISP_REG_M"); - printonmatch (&p, "@(,)", "A_DISP_REG_N"); - printonmatch (&p, "@(R0,)", "A_IND_R0_REG_N"); - printonmatch (&p, "@(R0,)", "A_IND_R0_REG_M"); - printonmatch (&p, "@(,GBR)", "A_DISP_GBR"); - printonmatch (&p, "@(R0,GBR)", "A_R0_GBR"); - printonmatch (&p, "", "A_BDISP8"); - printonmatch (&p, "", "A_BDISP12"); - printonmatch (&p, "SR", "A_SR"); - printonmatch (&p, "GBR", "A_GBR"); - printonmatch (&p, "VBR", "A_VBR"); - printonmatch (&p, "SSR", "A_SSR"); - printonmatch (&p, "SPC", "A_SPC"); - printonmatch (&p, "MACH", "A_MACH"); - printonmatch (&p, "MACL", "A_MACL"); - printonmatch (&p, "PR", "A_PR"); - - } - printf ("},{"); - - p = o->code; - while (*p) - { - printonmatch (&p, "0000", "HEX_0"); - printonmatch (&p, "0001", "HEX_1"); - printonmatch (&p, "0010", "HEX_2"); - printonmatch (&p, "0011", "HEX_3"); - printonmatch (&p, "0100", "HEX_4"); - printonmatch (&p, "0101", "HEX_5"); - printonmatch (&p, "0110", "HEX_6"); - printonmatch (&p, "0111", "HEX_7"); - - printonmatch (&p, "1000", "HEX_8"); - printonmatch (&p, "1001", "HEX_9"); - printonmatch (&p, "1010", "HEX_A"); - printonmatch (&p, "1011", "HEX_B"); - printonmatch (&p, "1100", "HEX_C"); - printonmatch (&p, "1101", "HEX_D"); - printonmatch (&p, "1110", "HEX_E"); - printonmatch (&p, "1111", "HEX_F"); - printonmatch (&p, "i8*1....", "IMM_8"); - printonmatch (&p, "i4*1", "IMM_4"); - printonmatch (&p, "i8p4....", "PCRELIMM_8BY4"); - printonmatch (&p, "i8p2....", "PCRELIMM_8BY2"); - printonmatch (&p, "i8*2....", "IMM_8BY2"); - printonmatch (&p, "i4*2", "IMM_4BY2"); - printonmatch (&p, "i8*4....", "IMM_8BY4"); - printonmatch (&p, "i4*4", "IMM_4BY4"); - printonmatch (&p, "i12.........", "BRANCH_12"); - printonmatch (&p, "i8p1....", "BRANCH_8"); - printonmatch (&p, "nnnn", "REG_N"); - printonmatch (&p, "mmmm", "REG_M"); - - } - printf ("}},\n"); -} - -static void -gengastab () +gengastab (void) { op *p; sorttab (); @@ -1568,127 +2581,202 @@ gengastab () { printf ("%s %-30s\n", p->code, p->name); } - - } +static unsigned short table[1 << 16]; + +static int warn_conflicts = 0; static void -genopc () +conflict_warn (int val, int i) { - op *p; - make_enum_list ("sh_nibble_type", nibble_type_list); - make_enum_list ("sh_arg_type", arg_type_list); - - printf ("typedef struct {\n"); - printf ("char *name;\n"); - printf ("sh_arg_type arg[3];\n"); - printf ("sh_nibble_type nibbles[4];\n"); - printf ("} sh_opcode_info;\n"); - printf ("#ifdef DEFINE_TABLE\n"); - printf ("sh_opcode_info sh_table[]={\n"); - for (p = tab; p->name; p++) - { - printf ("\n/* %s %-20s*/", p->code, p->name); - think (p); - } - printf ("0};\n"); - printf ("#endif\n"); -} - - - + int ix, key; + int j = table[val]; + fprintf (stderr, "Warning: opcode table conflict: 0x%04x (idx %d && %d)\n", + val, i, table[val]); + for (ix = ARRAY_SIZE (tab); ix >= 0; ix--) + if (tab[ix].index == i || tab[ix].index == j) + { + key = ((tab[ix].code[0] - '0') << 3) + + ((tab[ix].code[1] - '0') << 2) + + ((tab[ix].code[2] - '0') << 1) + + ((tab[ix].code[3] - '0')); -/* Convert a string of 4 binary digits into an int */ + if (val >> 12 == key) + fprintf (stderr, " %s -- %s\n", tab[ix].code, tab[ix].name); + } -static -int -bton (s) - char *s; + for (ix = ARRAY_SIZE (movsxy_tab); ix >= 0; ix--) + if (movsxy_tab[ix].index == i || movsxy_tab[ix].index == j) + { + key = ((movsxy_tab[ix].code[0] - '0') << 3) + + ((movsxy_tab[ix].code[1] - '0') << 2) + + ((movsxy_tab[ix].code[2] - '0') << 1) + + ((movsxy_tab[ix].code[3] - '0')); + + if (val >> 12 == key) + fprintf (stderr, " %s -- %s\n", + movsxy_tab[ix].code, movsxy_tab[ix].name); + } -{ - int n = 0; - int v = 8; - while (v) - { - if (*s == '1') - n |= v; - v >>= 1; - s++; - } - return n; + for (ix = ARRAY_SIZE (ppi_tab); ix >= 0; ix--) + if (ppi_tab[ix].index == i || ppi_tab[ix].index == j) + { + key = ((ppi_tab[ix].code[0] - '0') << 3) + + ((ppi_tab[ix].code[1] - '0') << 2) + + ((ppi_tab[ix].code[2] - '0') << 1) + + ((ppi_tab[ix].code[3] - '0')); + + if (val >> 12 == key) + fprintf (stderr, " %s -- %s\n", + ppi_tab[ix].code, ppi_tab[ix].name); + } } -static unsigned char table[1 << 16]; - -/* Take an opcode expand all varying fields in it out and fill all the - right entries in 'table' with the opcode index*/ +/* Take an opcode, expand all varying fields in it out and fill all the + right entries in 'table' with the opcode index. */ static void -expand_opcode (shift, val, i, s) - int shift; - int val; - int i; - char *s; +expand_opcode (int val, int i, const char *s) { - int j; - if (*s == 0) { + if (warn_conflicts && table[val] != 0) + conflict_warn (val, i); table[val] = i; } else { + int j = 0, m = 0; + switch (s[0]) { - + default: + fprintf (stderr, "expand_opcode: illegal char '%c'\n", s[0]); + exit (1); case '0': case '1': - { - - int n = bton (s); - if (n >= 0) - { - expand_opcode (shift - 4, val | (n << shift), i, s + 4); - } - break; - } + /* Consume an arbitrary number of ones and zeros. */ + do { + j = (j << 1) + (s[m++] - '0'); + } while (s[m] == '0' || s[m] == '1'); + expand_opcode ((val << m) | j, i, s + m); + break; + case 'N': /* NN -- four-way fork */ + for (j = 0; j < 4; j++) + expand_opcode ((val << 2) | j, i, s + 2); + break; + case 'x': /* xx or xy -- two-way or four-way fork */ + for (j = 0; j < 4; j += (s[1] == 'x' ? 2 : 1)) + expand_opcode ((val << 2) | j, i, s + 2); + break; + case 'y': /* yy or yx -- two-way or four-way fork */ + for (j = 0; j < (s[1] == 'x' ? 4 : 2); j++) + expand_opcode ((val << 2) | j, i, s + 2); + break; + case '?': /* Seven-way "wildcard" fork for movxy */ + expand_opcode ((val << 2), i, s + 2); + for (j = 1; j < 4; j++) + { + expand_opcode ((val << 2) | j, i, s + 2); + expand_opcode ((val << 2) | (j + 16), i, s + 2); + } + break; + case 'i': /* eg. "i8*1" */ + case '.': /* "...." is a wildcard */ case 'n': case 'm': + /* nnnn, mmmm, i#*#, .... -- 16-way fork. */ for (j = 0; j < 16; j++) + expand_opcode ((val << 4) | j, i, s + 4); + break; + case 'e': + /* eeee -- even numbered register: + 8 way fork. */ + for (j = 0; j < 15; j += 2) + expand_opcode ((val << 4) | j, i, s + 4); + break; + case 'M': + /* A0, A1, X0, X1, Y0, Y1, M0, M1, A0G, A1G: + MMMM -- 10-way fork */ + expand_opcode ((val << 4) | 5, i, s + 4); + for (j = 7; j < 16; j++) + expand_opcode ((val << 4) | j, i, s + 4); + break; + case 'G': + /* A1G, A0G: + GGGG -- two-way fork */ + for (j = 13; j <= 15; j +=2) + expand_opcode ((val << 4) | j, i, s + 4); + break; + case 's': + /* ssss -- 10-way fork */ + /* System registers mach, macl, pr: */ + for (j = 0; j < 3; j++) + expand_opcode ((val << 4) | j, i, s + 4); + /* System registers fpul, fpscr/dsr, a0, x0, x1, y0, y1: */ + for (j = 5; j < 12; j++) + expand_opcode ((val << 4) | j, i, s + 4); + break; + case 'X': + /* XX/XY -- 2/4 way fork. */ + for (j = 0; j < 4; j += (s[1] == 'X' ? 2 : 1)) + expand_opcode ((val << 2) | j, i, s + 2); + break; + case 'a': + /* aa/ax -- 2/4 way fork. */ + for (j = 0; j < 4; j += (s[1] == 'a' ? 2 : 1)) + expand_opcode ((val << 2) | j, i, s + 2); + break; + case 'Y': + /* YY/YX -- 2/4 way fork. */ + for (j = 0; j < (s[1] == 'Y' ? 2 : 4); j += 1) + expand_opcode ((val << 2) | j, i, s + 2); + break; + case 'A': + /* AA/AY: 2/4 way fork. */ + for (j = 0; j < (s[1] == 'A' ? 2 : 4); j += 1) + expand_opcode ((val << 2) | j, i, s + 2); + break; + case 'v': + /* vv(VV) -- 4(16) way fork. */ + /* Vector register fv0/4/8/12. */ + if (s[2] == 'V') { - expand_opcode (shift - 4, val | (j << shift), i, s + 4); - + /* 2 vector registers. */ + for (j = 0; j < 15; j++) + expand_opcode ((val << 4) | j, i, s + 4); } - break; - - default: - for (j = 0; j < (1 << (shift + 4)); j++) + else { - table[val | j] = i; + /* 1 vector register. */ + for (j = 0; j < 4; j += 1) + expand_opcode ((val << 2) | j, i, s + 2); } + break; } } } /* Print the jump table used to index an opcode into a switch - statement entry. */ + statement entry. */ static void -dumptable () +dumptable (const char *name, int size, int start) { int lump = 256; int online = 16; - int i = 0; + int i = start; - while (i < 1 << 16) + printf ("unsigned short %s[%d]={\n", name, size); + while (i < start + size) { int j = 0; - printf ("unsigned char sh_jump_table%x[%d]={\n", i, lump); + printf ("/* 0x%x */\n", i); while (j < lump) { @@ -1705,42 +2793,48 @@ dumptable () printf ("\n"); } i += j; - printf ("};\n"); } - + printf ("};\n"); } static void -filltable () +filltable (op *p) { - op *p; - int index = 1; + static int index = 1; sorttab (); - for (p = tab; p->name; p++) + for (; p->name; p++) { p->index = index++; - expand_opcode (12, 0, p->index, p->code); + expand_opcode (0, p->index, p->code); } } +/* Table already contains all the switch case tags for 16-bit opcode double + data transfer (ddt) insns, and the switch case tag for processing parallel + processing insns (ppi) for code 0xf800 (ppi nopx nopy). Copy the + latter tag to represent all combinations of ppi with ddt. */ static void -gensim () +expand_ppi_movxy (void) { - op *p; - int j; + int i; - printf ("{\n"); - printf (" switch (jump_table[iword]) {\n"); + for (i = 0xf000; i < 0xf400; i++) + if (table[i]) + table[i + 0x800] = table[0xf800]; +} - for (p = tab; p->name; p++) +static void +gensim_caselist (op *p) +{ + for (; p->name; p++) { + int j; int sextbit = -1; int needm = 0; int needn = 0; - - char *s = p->code; + const char *s = p->code; printf (" /* %s %s */\n", p->name, p->code); printf (" case %d: \n", p->index); @@ -1750,21 +2844,115 @@ gensim () { switch (*s) { + default: + fprintf (stderr, "gencode/gensim_caselist: illegal char '%c'\n", + *s); + exit (1); + break; + case '?': + /* Wildcard expansion, nothing to do here. */ + s += 2; + break; + case 'v': + printf (" int v1 = ((iword >> 10) & 3) * 4;\n"); + s += 2; + break; + case 'V': + printf (" int v2 = ((iword >> 8) & 3) * 4;\n"); + s += 2; + break; case '0': case '1': + s += 2; + break; case '.': s += 4; break; case 'n': - printf (" int n = (iword >>8) & 0xf;\n"); + case 'e': + printf (" int n = (iword >> 8) & 0xf;\n"); needn = 1; s += 4; break; + case 'N': + printf (" int n = (((iword >> 8) - 2) & 0x3) + 2;\n"); + s += 2; + break; + case 'x': + if (s[1] == 'y') /* xy */ + { + printf (" int n = (iword & 3) ? \n"); + printf (" ((iword >> 9) & 1) + 4 : \n"); + printf (" REG_xy ((iword >> 8) & 3);\n"); + } + else + printf (" int n = ((iword >> 9) & 1) + 4;\n"); + needn = 1; + s += 2; + break; + case 'y': + if (s[1] == 'x') /* yx */ + { + printf (" int n = (iword & 0xc) ? \n"); + printf (" ((iword >> 8) & 1) + 6 : \n"); + printf (" REG_yx ((iword >> 8) & 3);\n"); + } + else + printf (" int n = ((iword >> 8) & 1) + 6;\n"); + needn = 1; + s += 2; + break; case 'm': - printf (" int m = (iword >>4) & 0xf;\n"); needm = 1; + case 's': + case 'M': + case 'G': + printf (" int m = (iword >> 4) & 0xf;\n"); s += 4; - + break; + case 'X': + if (s[1] == 'Y') /* XY */ + { + printf (" int m = (iword & 3) ? \n"); + printf (" ((iword >> 7) & 1) + 8 : \n"); + printf (" DSP_xy ((iword >> 6) & 3);\n"); + } + else + printf (" int m = ((iword >> 7) & 1) + 8;\n"); + s += 2; + break; + case 'a': + if (s[1] == 'x') /* ax */ + { + printf (" int m = (iword & 3) ? \n"); + printf (" 7 - ((iword >> 6) & 2) : \n"); + printf (" DSP_ax ((iword >> 6) & 3);\n"); + } + else + printf (" int m = 7 - ((iword >> 6) & 2);\n"); + s += 2; + break; + case 'Y': + if (s[1] == 'X') /* YX */ + { + printf (" int m = (iword & 0xc) ? \n"); + printf (" ((iword >> 6) & 1) + 10 : \n"); + printf (" DSP_yx ((iword >> 6) & 3);\n"); + } + else + printf (" int m = ((iword >> 6) & 1) + 10;\n"); + s += 2; + break; + case 'A': + if (s[1] == 'Y') /* AY */ + { + printf (" int m = (iword & 0xc) ? \n"); + printf (" 7 - ((iword >> 5) & 2) : \n"); + printf (" DSP_ay ((iword >> 6) & 3);\n"); + } + else + printf (" int m = 7 - ((iword >> 5) & 2);\n"); + s += 2; break; case 'i': @@ -1772,6 +2960,12 @@ gensim () switch (s[1]) { + default: + fprintf (stderr, + "gensim_caselist: Unknown char '%c' in %s\n", + s[1], s); + exit (1); + break; case '4': printf ("f"); break; @@ -1780,7 +2974,6 @@ gensim () break; case '1': sextbit = 12; - printf ("fff"); break; } @@ -1788,13 +2981,21 @@ gensim () switch (s[3]) { + default: + fprintf (stderr, + "gensim_caselist: Unknown char '%c' in %s\n", + s[3], s); + exit (1); + break; + case '.': /* eg. "i12." */ + break; case '1': break; case '2': - printf ("<<1"); + printf (" << 1"); break; case '4': - printf ("<<2"); + printf (" << 2"); break; } printf (";\n"); @@ -1803,25 +3004,46 @@ gensim () } if (sextbit > 0) { - printf (" i = (i ^ (1<<%d))-(1<<%d);\n", + printf (" i = (i ^ (1 << %d)) - (1 << %d);\n", sextbit - 1, sextbit - 1); } if (needm && needn) - printf (" TB(m,n);\n"); + printf (" TB (m,n);\n"); else if (needm) - printf (" TL(m);\n"); + printf (" TL (m);\n"); else if (needn) - printf (" TL(n);\n"); + printf (" TL (n);\n"); { - /* Do the refs */ - char *r; + /* Do the refs. */ + const char *r; for (r = p->refs; *r; r++) { - if (*r == '0') printf(" CREF(0);\n"); - if (*r == 'n') printf(" CREF(n);\n"); - if (*r == 'm') printf(" CREF(m);\n"); + if (*r == 'f') printf (" CREF (15);\n"); + if (*r == '-') + { + printf (" {\n"); + printf (" int i = n;\n"); + printf (" do {\n"); + printf (" CREF (i);\n"); + printf (" } while (i-- > 0);\n"); + printf (" }\n"); + } + if (*r == '+') + { + printf (" {\n"); + printf (" int i = n;\n"); + printf (" do {\n"); + printf (" CREF (i);\n"); + printf (" } while (i++ < 14);\n"); + printf (" }\n"); + } + if (*r == '0') printf (" CREF (0);\n"); + if (*r == '8') printf (" CREF (8);\n"); + if (*r == '9') printf (" CREF (9);\n"); + if (*r == 'n') printf (" CREF (n);\n"); + if (*r == 'm') printf (" CREF (m);\n"); } } @@ -1836,73 +3058,350 @@ gensim () printf (" }\n"); { - /* Do the defs */ - char *r; + /* Do the defs. */ + const char *r; for (r = p->defs; *r; r++) { - if (*r == '0') printf(" CDEF(0);\n"); - if (*r == 'n') printf(" CDEF(n);\n"); - if (*r == 'm') printf(" CDEF(m);\n"); + if (*r == 'f') printf (" CDEF (15);\n"); + if (*r == '-') + { + printf (" {\n"); + printf (" int i = n;\n"); + printf (" do {\n"); + printf (" CDEF (i);\n"); + printf (" } while (i-- > 0);\n"); + printf (" }\n"); + } + if (*r == '+') + { + printf (" {\n"); + printf (" int i = n;\n"); + printf (" do {\n"); + printf (" CDEF (i);\n"); + printf (" } while (i++ < 14);\n"); + printf (" }\n"); + } + if (*r == '0') printf (" CDEF (0);\n"); + if (*r == 'n') printf (" CDEF (n);\n"); + if (*r == 'm') printf (" CDEF (m);\n"); } } printf (" break;\n"); printf (" }\n"); } +} + +static void +gensim (void) +{ + printf ("{\n"); + printf ("/* REG_xy = [r4, r5, r0, r1]. */\n"); + printf ("#define REG_xy(R) ((R)==0 ? 4 : (R)==2 ? 5 : (R)==1 ? 0 : 1)\n"); + printf ("/* REG_yx = [r6, r7, r2, r3]. */\n"); + printf ("#define REG_yx(R) ((R)==0 ? 6 : (R)==1 ? 7 : (R)==2 ? 2 : 3)\n"); + printf ("/* DSP_ax = [a0, a1, x0, x1]. */\n"); + printf ("#define DSP_ax(R) ((R)==0 ? 7 : (R)==2 ? 5 : (R)==1 ? 8 : 9)\n"); + printf ("/* DSP_ay = [a0, a1, y0, y1]. */\n"); + printf ("#define DSP_ay(R) ((R)==0 ? 7 : (R)==1 ? 5 : (R)==2 ? 10 : 11)\n"); + printf ("/* DSP_xy = [x0, x1, y0, y1]. */\n"); + printf ("#define DSP_xy(R) ((R)==0 ? 8 : (R)==2 ? 9 : (R)==1 ? 10 : 11)\n"); + printf ("/* DSP_yx = [y0, y1, x0, x1]. */\n"); + printf ("#define DSP_yx(R) ((R)==0 ? 10 : (R)==1 ? 11 : (R)==2 ? 8 : 9)\n"); + printf (" switch (jump_table[iword]) {\n"); + + gensim_caselist (tab); + gensim_caselist (movsxy_tab); + printf (" default:\n"); printf (" {\n"); - printf (" saved_state.asregs.exception = SIGILL;\n"); + printf (" RAISE_EXCEPTION (SIGILL);\n"); printf (" }\n"); printf (" }\n"); printf ("}\n"); } - static void -gendefines () +gendefines (void) { op *p; - filltable(); + filltable (tab); for (p = tab; p->name; p++) { - char *s = p->name; + const char *s = p->name; printf ("#define OPC_"); while (*s) { - if (isupper(*s)) - *s = tolower(*s); - if (isalpha(*s)) printf("%c", *s); - if (*s == ' ') printf("_"); - if (*s == '@') printf("ind_"); - if (*s == ',') printf("_"); + if (isalpha (*s)) + printf ("%c", tolower (*s)); + if (*s == ' ') + printf ("_"); + if (*s == '@') + printf ("ind_"); + if (*s == ',') + printf ("_"); s++; } - printf(" %d\n",p->index); + printf (" %d\n",p->index); } } +static int ppi_index; + +/* Take a ppi code, expand all varying fields in it and fill all the + right entries in 'table' with the opcode index. + NOTE: tail recursion optimization removed for simplicity. */ + +static void +expand_ppi_code (int val, int i, const char *s) +{ + int j; + + switch (s[0]) + { + default: + fprintf (stderr, "gencode/expand_ppi_code: Illegal char '%c'\n", s[0]); + exit (2); + break; + case 'g': + case 'z': + if (warn_conflicts && table[val] != 0) + conflict_warn (val, i); + + /* The last four bits are disregarded for the switch table. */ + table[val] = i; + return; + case 'm': + /* Four-bit expansion. */ + for (j = 0; j < 16; j++) + expand_ppi_code ((val << 4) + j, i, s + 4); + break; + case '.': + case '0': + expand_ppi_code ((val << 1), i, s + 1); + break; + case '1': + expand_ppi_code ((val << 1) + 1, i, s + 1); + break; + case 'i': + case 'e': case 'f': + case 'x': case 'y': + expand_ppi_code ((val << 1), i, s + 1); + expand_ppi_code ((val << 1) + 1, i, s + 1); + break; + case 'c': + expand_ppi_code ((val << 2) + 1, ppi_index++, s + 2); + expand_ppi_code ((val << 2) + 2, i, s + 2); + expand_ppi_code ((val << 2) + 3, i, s + 2); + break; + } +} + +static void +ppi_filltable (void) +{ + op *p; + ppi_index = 1; + + for (p = ppi_tab; p->name; p++) + { + p->index = ppi_index++; + expand_ppi_code (0, p->index, p->code); + } +} + +static void +ppi_gensim (void) +{ + op *p = ppi_tab; + + printf ("#define DSR_MASK_G 0x80\n"); + printf ("#define DSR_MASK_Z 0x40\n"); + printf ("#define DSR_MASK_N 0x20\n"); + printf ("#define DSR_MASK_V 0x10\n"); + printf ("\n"); + printf ("#define COMPUTE_OVERFLOW do {\\\n"); + printf (" overflow = res_grd != SIGN32 (res) ? DSR_MASK_V : 0; \\\n"); + printf (" if (overflow && S) \\\n"); + printf (" { \\\n"); + printf (" if (res_grd & 0x80) \\\n"); + printf (" { \\\n"); + printf (" res = 0x80000000; \\\n"); + printf (" res_grd |= 0xff; \\\n"); + printf (" } \\\n"); + printf (" else \\\n"); + printf (" { \\\n"); + printf (" res = 0x7fffffff; \\\n"); + printf (" res_grd &= ~0xff; \\\n"); + printf (" } \\\n"); + printf (" overflow = 0; \\\n"); + printf (" } \\\n"); + printf ("} while (0)\n"); + printf ("\n"); + printf ("#define ADD_SUB_GE \\\n"); + printf (" (greater_equal = ~(overflow << 3 & res_grd) & DSR_MASK_G)\n"); + printf ("\n"); + printf ("static void\n"); + printf ("ppi_insn (int iword)\n"); + printf ("{\n"); + printf (" /* 'ee' = [x0, x1, y0, a1] */\n"); + printf (" static char e_tab[] = { 8, 9, 10, 5};\n"); + printf (" /* 'ff' = [y0, y1, x0, a1] */\n"); + printf (" static char f_tab[] = {10, 11, 8, 5};\n"); + printf (" /* 'xx' = [x0, x1, a0, a1] */\n"); + printf (" static char x_tab[] = { 8, 9, 7, 5};\n"); + printf (" /* 'yy' = [y0, y1, m0, m1] */\n"); + printf (" static char y_tab[] = {10, 11, 12, 14};\n"); + printf (" /* 'gg' = [m0, m1, a0, a1] */\n"); + printf (" static char g_tab[] = {12, 14, 7, 5};\n"); + printf (" /* 'uu' = [x0, y0, a0, a1] */\n"); + printf (" static char u_tab[] = { 8, 10, 7, 5};\n"); + printf ("\n"); + printf (" int z;\n"); + printf (" int res, res_grd;\n"); + printf (" int carry, overflow, greater_equal;\n"); + printf ("\n"); + printf (" switch (ppi_table[iword >> 4]) {\n"); + + for (; p->name; p++) + { + int shift, j; + int cond = 0; + int havedecl = 0; + const char *s = p->code; + + printf (" /* %s %s */\n", p->name, p->code); + printf (" case %d: \n", p->index); + + printf (" {\n"); + for (shift = 16; *s; ) + { + switch (*s) + { + case 'i': + printf (" int i = (iword >> 4) & 0x7f;\n"); + s += 6; + break; + case 'e': + case 'f': + case 'x': + case 'y': + case 'g': + case 'u': + shift -= 2; + printf (" int %c = %c_tab[(iword >> %d) & 3];\n", + *s, *s, shift); + havedecl = 1; + s += 2; + break; + case 'c': + printf (" if ((((iword >> 8) ^ DSR) & 1) == 0)\n"); + printf ("\treturn;\n"); + printf (" }\n"); + printf (" case %d: \n", p->index + 1); + printf (" {\n"); + cond = 1; + case '0': + case '1': + case '.': + shift -= 2; + s += 2; + break; + case 'z': + if (havedecl) + printf ("\n"); + printf (" z = iword & 0xf;\n"); + havedecl = 2; + s += 4; + break; + } + } + if (havedecl == 1) + printf ("\n"); + else if (havedecl == 2) + printf (" {\n"); + for (j = 0; j < MAX_NR_STUFF; j++) + { + if (p->stuff[j]) + { + printf (" %s%s\n", + (havedecl == 2 ? " " : ""), + p->stuff[j]); + } + } + if (havedecl == 2) + printf (" }\n"); + if (cond) + { + printf (" if (iword & 0x200)\n"); + printf (" goto assign_z;\n"); + } + printf (" break;\n"); + printf (" }\n"); + } + + printf (" default:\n"); + printf (" {\n"); + printf (" RAISE_EXCEPTION (SIGILL);\n"); + printf (" return;\n"); + printf (" }\n"); + printf (" }\n"); + printf (" DSR &= ~0xf1;\n"); + printf (" if (res || res_grd)\n"); + printf (" DSR |= greater_equal | res_grd >> 2 & DSR_MASK_N | overflow;\n"); + printf (" else\n"); + printf (" DSR |= DSR_MASK_Z | overflow;\n"); + printf (" assign_dc:\n"); + printf (" switch (DSR >> 1 & 7)\n"); + printf (" {\n"); + printf (" case 0: /* Carry Mode */\n"); + printf (" DSR |= carry;\n"); + printf (" case 1: /* Negative Value Mode */\n"); + printf (" DSR |= res_grd >> 7 & 1;\n"); + printf (" case 2: /* Zero Value Mode */\n"); + printf (" DSR |= DSR >> 6 & 1;\n"); + printf (" case 3: /* Overflow mode */\n"); + printf (" DSR |= overflow >> 4;\n"); + printf (" case 4: /* Signed Greater Than Mode */\n"); + printf (" DSR |= DSR >> 7 & 1;\n"); + printf (" case 5: /* Signed Greater Than Or Equal Mode */\n"); + printf (" DSR |= greater_equal >> 7;\n"); + printf (" }\n"); + printf (" assign_z:\n"); + printf (" if (0xa05f >> z & 1)\n"); + printf (" {\n"); + printf (" RAISE_EXCEPTION (SIGILL);\n"); + printf (" return;\n"); + printf (" }\n"); + printf (" DSP_R (z) = res;\n"); + printf (" DSP_GRD (z) = res_grd;\n"); + printf ("}\n"); +} + int -main (ac, av) - int ac; - char **av; +main (int ac, char *av[]) { - /* verify the table before anything else */ + /* Verify the table before anything else. */ { op *p; for (p = tab; p->name; p++) { - /* check that the code field contains 16 bits */ + /* Check that the code field contains 16 bits. */ if (strlen (p->code) != 16) { - fprintf (stderr, "Code `%s' length wrong (%d) for `%s'\n", + fprintf (stderr, "Code `%s' length wrong (%zu) for `%s'\n", p->code, strlen (p->code), p->name); abort (); } } } - /* now generate the requested data */ + /* Now generate the requested data. */ if (ac > 1) { + if (ac > 2 && strcmp (av[2], "-w") == 0) + { + warn_conflicts = 1; + } if (strcmp (av[1], "-t") == 0) { gengastab (); @@ -1913,19 +3412,31 @@ main (ac, av) } else if (strcmp (av[1], "-s") == 0) { - filltable (); - dumptable (); + filltable (tab); + dumptable ("sh_jump_table", 1 << 16, 0); + memset (table, 0, sizeof table); + filltable (movsxy_tab); + expand_ppi_movxy (); + dumptable ("sh_dsp_table", 1 << 12, 0xf000); + + memset (table, 0, sizeof table); + ppi_filltable (); + dumptable ("ppi_table", 1 << 12, 0); } else if (strcmp (av[1], "-x") == 0) { - filltable (); + filltable (tab); + filltable (movsxy_tab); gensim (); } + else if (strcmp (av[1], "-p") == 0) + { + ppi_filltable (); + ppi_gensim (); + } } else - { - genopc (); - } + fprintf (stderr, "Opcode table generation no longer supported.\n"); return 0; }