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
*/
/* 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
*/
+#include <ctype.h>
#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "libiberty.h"
#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 tab[] =
+static op tab[] =
{
{ "n", "", "add #<imm>,<REG_N>", "0111nnnni8*1....",
- "R[n] += SEXT(i);",
+ "R[n] += SEXT (i);",
"if (i == 0) {",
" UNDEF(n); /* see #ifdef PARANOID */",
" break;",
"R[n] = ult;",
},
- { "0", "", "and #<imm>,R0", "11001001i8*1....",
+ { "0", "0", "and #<imm>,R0", "11001001i8*1....",
"R0 &= i;",
},
{ "n", "nm", "and <REG_M>,<REG_N>", "0010nnnnmmmm1001",
},
{ "", "", "bf <bdisp8>", "10001011i8p1....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"if (!T) {",
- " SET_NIP (PC + 4 + (SEXT(i) * 2));",
+ " SET_NIP (PC + 4 + (SEXT (i) * 2));",
" cycles += 2;",
"}",
},
{ "", "", "bf.s <bdisp8>", "10001111i8p1....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"if (!T) {",
" SET_NIP (PC + 4 + (SEXT (i) * 2));",
" cycles += 2;",
"}",
},
+ { "", "n", "bit32 #imm3,@(disp12,<REG_N>)", "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 <bdisp12>", "1010i12.........",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"SET_NIP (PC + 4 + (SEXT12 (i) * 2));",
"cycles += 2;",
"Delay_Slot (PC + 2);",
},
{ "", "n", "braf <REG_N>", "0000nnnn00100011",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"SET_NIP (PC + 4 + R[n]);",
"cycles += 2;",
"Delay_Slot (PC + 2);",
},
{ "", "", "bsr <bdisp12>", "1011i12.........",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"PR = PH2T (PC + 4);",
"SET_NIP (PC + 4 + (SEXT12 (i) * 2));",
"cycles += 2;",
},
{ "", "n", "bsrf <REG_N>", "0000nnnn00000011",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"PR = PH2T (PC) + 4;",
"SET_NIP (PC + 4 + R[n]);",
"cycles += 2;",
},
{ "", "", "bt <bdisp8>", "10001001i8p1....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"if (T) {",
" SET_NIP (PC + 4 + (SEXT (i) * 2));",
" cycles += 2;",
"}",
},
+
+ { "", "m", "bld/st #<imm>, <REG_M>", "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 #<imm>, <REG_M>", "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 <REG_N>", "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 <REG_N>", "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 <REG_N>", "0100nnnn10000001",
+ "if (R[n] < -256 || R[n] > 255) {",
+ " L (n);",
+ " SET_SR_CS (1);",
+ " R[n] = 255;",
+ "}",
+ },
+ { "n", "n", "clipu.w <REG_N>", "0100nnnn10000101",
+ "if (R[n] < -65536 || R[n] > 65535) {",
+ " L (n);",
+ " SET_SR_CS (1);",
+ " R[n] = 65535;",
+ "}",
+ },
+ { "n", "0n", "divs R0,<REG_N>", "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,<REG_N>", "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,<REG_N>", "0100nnnn10000000",
+ "R[n] = (R[n] * R0) & 0xffffffff;",
+ "L (n);",
+ },
+ { "0", "n", "ldbank @<REG_N>,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,@<REG_N>", "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 <REG_N>,@-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+,<REG_N>", "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 <REG_N>,@-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+,<REG_N>", "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 <bdisp8>", "10001101i8p1....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"if (T) {",
" SET_NIP (PC + 4 + (SEXT (i) * 2));",
" cycles += 2;",
"SET_SR_T (0);",
},
- { "", "nm", "div1 <REG_M>,<REG_N>", "0011nnnnmmmm0100",
- "div1 (R, m, n/*, T*/);",
+ { "n", "nm", "div1 <REG_M>,<REG_N>", "0011nnnnmmmm0100",
+ "div1 (&R0, m, n/*, T*/);",
},
{ "", "nm", "dmuls.l <REG_M>,<REG_N>", "0011nnnnmmmm1101",
- "dmul (1/*signed*/, R[n], R[m]);",
+ "dmul_s (R[n], R[m]);",
},
{ "", "nm", "dmulu.l <REG_M>,<REG_N>", "0011nnnnmmmm0101",
- "dmul (0/*unsigned*/, R[n], R[m]);",
+ "dmul_u (R[n], R[m]);",
},
{ "n", "n", "dt <REG_N>", "0100nnnn00010000",
/* sh2e */
{ "", "", "fabs <FREG_N>", "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);",
},
/* sh2e */
" int i;",
" float f;",
" } u;",
- " u.f = DR(n);",
+ " u.f = DR (n);",
" FPUL = u.i;",
"}",
},
" float f;",
" } u;",
" u.i = FPUL;",
- " SET_DR(n, u.f);",
+ " SET_DR (n, u.f);",
"}",
},
/* sh2e */
{ "", "", "fdiv <FREG_M>,<FREG_N>", "1111nnnnmmmm0011",
"FP_OP (n, /, m);",
- "/* FIXME: check for DP and (n & 1) == 0? */",
+ "/* FIXME: check for DP and (n & 1) == 0? */",
},
/* sh4 */
"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);",
/* sh2e */
{ "", "", "fldi0 <FREG_N>", "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? */",
},
/* sh2e */
{ "", "", "fldi1 <FREG_N>", "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? */",
},
/* sh2e */
" int i;",
" float f;",
" } u;",
- " u.f = FR(n);",
+ " u.f = FR (n);",
" FPUL = u.i;",
},
{ "", "", "float FPUL,<FREG_N>", "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);",
"}",
},
/* sh2e */
{ "", "", "fmac <FREG_0>,<FREG_M>,<FREG_N>", "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? */",
},
"else",
"{",
" MA (1);",
- " WLAT (R[n], FI(m));",
+ " WLAT (R[n], FI (m));",
"}",
},
/* sh2e */
"else",
"{",
" MA (1);",
- " SET_FI(n, RLAT(R[m]));",
+ " SET_FI (n, RLAT (R[m]));",
"}",
},
+ /* sh2a */
+ { "", "n", "fmov.s @(disp12,<REG_N>), <FREG_M>", "0011nnnnmmmm0001",
+ "/* and fmov.s <FREG_N>, @(disp12,<FREG_M>)",
+ " and mov.bwl <REG_N>, @(disp12,<REG_M>)",
+ " and mov.bwl @(disp12,<REG_N>),<REG_M>",
+ " and movu.bw @(disp12,<REG_N>),<REG_M>. */",
+ "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 @<REG_M>+,<FREG_N>", "1111nnnnmmmm1001",
/* sh4 */
"{",
" MA (1);",
" R[n] -= 4;",
- " WLAT (R[n], FI(m));",
+ " WLAT (R[n], FI (m));",
"}",
},
/* sh2e */
"else",
"{",
" MA (1);",
- " SET_FI(n, RLAT(R[0] + R[m]));",
+ " SET_FI (n, RLAT (R[0] + R[m]));",
"}",
},
/* sh2e */
"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. */
/* sh2e */
{ "", "", "fmul <FREG_M>,<FREG_N>", "1111nnnnmmmm0010",
- "FP_OP(n, *, m);",
+ "FP_OP (n, *, m);",
},
/* sh2e */
{ "", "", "fneg <FREG_N>", "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);",
+ "SET_FPSCR (GET_FPSCR () ^ FPSCR_MASK_PR);",
},
/* sh4 */
{ "", "", "frchg", "1111101111111101",
"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);",
+ " 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));",
/* sh4 */
{ "", "", "fschg", "1111001111111101",
- "SET_FPSCR (GET_FPSCR() ^ FPSCR_MASK_SZ);",
+ "SET_FPSCR (GET_FPSCR () ^ FPSCR_MASK_SZ);",
},
/* sh3e */
{ "", "", "fsqrt <FREG_N>", "1111nnnn01101101",
- "FP_UNARY(n, sqrt);",
+ "FP_UNARY (n, sqrt);",
},
/* sh4 */
- { "", "", "fsrra", "1111nnnn01111101",
+ { "", "", "fsrra <FREG_N>", "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 <FREG_M>,<FREG_N>", "1111nnnnmmmm0001",
- "FP_OP(n, -, m);",
+ "FP_OP (n, -, m);",
},
/* sh2e */
{ "", "", "ftrc <FREG_N>, 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);",
},
/* sh4 */
" 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);",
"}",
},
{ "", "n", "jmp @<REG_N>", "0100nnnn00101011",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"SET_NIP (PT2H (R[n]));",
"cycles += 2;",
"Delay_Slot (PC + 2);",
},
{ "", "n", "jsr @<REG_N>", "0100nnnn00001011",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"PR = PH2T (PC + 4);",
"if (~doprofile)",
" gotcall (PR, R[n]);",
"cycles += 2;",
"Delay_Slot (PC + 2);",
},
+ { "", "n", "jsr/n @<REG_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 @@(<disp>,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 <REG_N>,<CREG_M>", "0100nnnnmmmm1110",
"CREG (m) = R[n];",
"else",
" RAISE_EXCEPTION (SIGILL); /* user mode */",
},
+ { "", "n", "ldc <REG_N>,TBR", "0100nnnn01001010",
+ "if (SR_MD)", /* FIXME? */
+ " TBR = R[n]; /* priv mode */",
+ "else",
+ " RAISE_EXCEPTION (SIGILL); /* user mode */",
+ },
{ "n", "n", "ldc.l @<REG_N>+,<CREG_M>", "0100nnnnmmmm0111",
"MA (1);",
"CREG (m) = RLAT (R[n]);",
},
{ "n", "n", "lds.l @<REG_N>+,<SREG_M>", "0100nnnnssss0110",
"MA (1);",
- "SREG (m) = RLAT(R[n]);",
+ "SREG (m) = RLAT (R[n]);",
"R[n] += 4;",
},
/* sh2e / sh-dsp (lds <REG_N>,DSR) */
{ "", "n", "lds <REG_N>,FPSCR", "0100nnnn01101010",
- "SET_FPSCR(R[n]);",
+ "SET_FPSCR (R[n]);",
},
/* sh2e / sh-dsp (lds.l @<REG_N>+,DSR) */
{ "n", "n", "lds.l @<REG_N>+,FPSCR", "0100nnnn01100110",
"MA (1);",
- "SET_FPSCR (RLAT(R[n]));",
+ "SET_FPSCR (RLAT (R[n]));",
"R[n] += 4;",
},
},
{ "nm", "nm", "mac.l @<REG_M>+,@<REG_N>+", "0000nnnnmmmm1111",
- "macl(&R0,memory,n,m);",
+ "macl (&R0, memory, n, m);",
},
{ "nm", "nm", "mac.w @<REG_M>+,@<REG_N>+", "0100nnnnmmmm1111",
- "macw(&R0,memory,n,m,endianw);",
+ "macw (&R0, memory, n, m, endianw);",
},
{ "n", "", "mov #<imm>,<REG_N>", "1110nnnni8*1....",
- "R[n] = SEXT(i);",
+ "R[n] = SEXT (i);",
+ },
+ { "n", "", "movi20 #<imm20>,<REG_N>", "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 #<imm20>,<REG_N>", "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 <REG_M>,<REG_N>", "0110nnnnmmmm0011",
"R[n] = R[m];",
"R[m] += 1;",
"L (n);",
},
+ { "0n", "n", "mov.b @-<REG_N>,R0", "0100nnnn11001011",
+ "MA (1);",
+ "R[n] -= 1;",
+ "R0 = RSBAT (R[n]);",
+ "L (0);",
+ },
{ "", "mn", "mov.b <REG_M>,@<REG_N>", "0010nnnnmmmm0000",
"MA (1);",
"WBAT (R[n], R[m]);",
"WBAT (R[n] + R0, R[m]);",
},
{ "n", "nm", "mov.b <REG_M>,@-<REG_N>", "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,@<REG_N>+", "0100nnnn10001011",
+ "MA (1);",
+ "WBAT (R[n], R0);",
+ "R[n] += 1;",
},
{ "n", "m", "mov.b @<REG_M>,<REG_N>", "0110nnnnmmmm0000",
"MA (1);",
"L (0);",
},
{ "n", "", "mov.l @(<disp>,PC),<REG_N>", "1101nnnni8p4....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"MA (1);",
"R[n] = RLAT ((PH2T (PC) & ~3) + 4 + i);",
"L (n);",
"R[m] += 4;",
"L (n);",
},
+ { "0n", "n", "mov.l @-<REG_N>,R0", "0100nnnn11101011",
+ "MA (1);",
+ "R[n] -= 4;",
+ "R0 = RLAT (R[n]);",
+ "L (0);",
+ },
{ "n", "m", "mov.l @<REG_M>,<REG_N>", "0110nnnnmmmm0010",
"MA (1);",
"R[n] = RLAT (R[m]);",
"WLAT (R0 + R[n], R[m]);",
},
{ "n", "nm", "mov.l <REG_M>,@-<REG_N>", "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,@<REG_N>+", "0100nnnn10101011",
+ "MA (1) ;",
+ "WLAT (R[n], R0);",
+ "R[n] += 4;",
},
{ "", "nm", "mov.l <REG_M>,@<REG_N>", "0010nnnnmmmm0010",
"MA (1);",
"L (0);",
},
{ "n", "", "mov.w @(<disp>,PC),<REG_N>", "1001nnnni8p2....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"MA (1);",
"R[n] = RSWAT (PH2T (PC + 4 + i));",
"L (n);",
"R[m] += 2;",
"L (n);",
},
+ { "0n", "n", "mov.w @-<REG_N>,R0", "0100nnnn11011011",
+ "MA (1);",
+ "R[n] -= 2;",
+ "R0 = RSWAT (R[n]);",
+ "L (0);",
+ },
{ "n", "m", "mov.w @<REG_M>,<REG_N>", "0110nnnnmmmm0001",
"MA (1);",
"R[n] = RSWAT (R[m]);",
"WWAT (R0 + R[n], R[m]);",
},
{ "n", "mn", "mov.w <REG_M>,@-<REG_N>", "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,@<REG_N>+", "0100nnnn10011011",
+ "MA (1);",
+ "WWAT (R[n], R0);",
+ "R[n] += 2;",
},
{ "", "nm", "mov.w <REG_M>,@<REG_N>", "0010nnnnmmmm0001",
"MA (1);",
},
{ "0", "", "mova @(<disp>,PC),R0", "11000111i8p4....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"R0 = ((i + 4 + PH2T (PC)) & ~0x3);",
},
"WLAT (R[n], R[0]);",
},
- { "n", "0", "movco.l R0, @<REG_N>", "0000nnnn01110011",
+ { "", "n0", "movco.l R0, @<REG_N>", "0000nnnn01110011",
"/* LDST -> T */",
"SET_SR_T (LDST);",
"/* if (T) R0 -> (Rn) */",
{ "n", "", "movt <REG_N>", "0000nnnn00101001",
"R[n] = T;",
},
-
+ { "", "", "movrt <REG_N>", "0000nnnn00111001",
+ "R[n] = (T == 0);",
+ },
{ "0", "n", "movua.l @<REG_N>,R0", "0100nnnn10101001",
"int regn = R[n];",
+ "int e = target_little_endian ? 3 : 0;",
"MA (1);",
- "R[0] = (RBAT (regn) << 24) + (RBAT (regn + 1) << 16) + ",
- " (RBAT (regn + 2) << 8) + RBAT (regn + 3);",
- "L (n);",
+ "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 @<REG_N>+,R0", "0100nnnn11101001",
"int regn = R[n];",
+ "int e = target_little_endian ? 3 : 0;",
"MA (1);",
- "R[0] = (RBAT (regn) << 24) + (RBAT (regn + 1) << 16) + ",
- " (RBAT (regn + 2) << 8) + RBAT (regn + 3);",
+ "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 (n);",
+ "L (0);",
},
{ "", "mn", "mul.l <REG_M>,<REG_N>", "0000nnnnmmmm0111",
"MACL = ((int) R[n]) * ((int) R[m]);",
/* muls.w - see muls */
{ "", "mn", "muls <REG_M>,<REG_N>", "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 <REG_M>,<REG_N>", "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 <REG_M>,<REG_N>", "0110nnnnmmmm1011",
"R[15] += 4;",
"Delay_Slot (PC + 2);",
#else
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"SET_SR (SSR);",
"SET_NIP (PT2H (SPC));",
"cycles += 2;",
},
{ "", "", "rts", "0000000000001011",
+ "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 <REG_N>", "0000nnnn01111011",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "R0 = R[n];",
+ "L (0);",
+ "SET_NIP (PT2H (PR));",
+ },
/* sh4a */
{ "", "", "setdmx", "0000000010011000",
},
{ "n", "mn", "shad <REG_M>,<REG_N>", "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 <REG_N>", "0100nnnn00100000",
},
{ "n", "mn", "shld <REG_M>,<REG_N>", "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 <REG_N>", "0100nnnn00000000",
},
{ "", "", "sleep", "0000000000011011",
- "nip += trap (0xc3, R0, PC, memory, maskl, maskw, endianw);",
+ "nip += trap (sd, 0xc3, &R0, PC, memory, maskl, maskw, endianw);",
},
{ "n", "", "stc <CREG_M>,<REG_N>", "0000nnnnmmmm0010",
"else",
" RAISE_EXCEPTION (SIGILL); /* user mode */",
},
+ { "n", "", "stc TBR,<REG_N>", "0000nnnn01001010",
+ "if (SR_MD)", /* FIXME? */
+ " R[n] = TBR; /* priv mode */",
+ "else",
+ " RAISE_EXCEPTION (SIGILL); /* user mode */",
+ },
{ "n", "n", "stc.l <CREG_M>,@-<REG_N>", "0100nnnnmmmm0011",
"MA (1);",
"R[n] -= 4;",
{ "", "n", "tas.b @<REG_N>", "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 #<imm>", "11000011i8*1....",
"long imm = 0xff & i;",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"if (i < 20 || i == 33 || i == 34 || i == 0xc3)",
- " nip += trap (i, R, PC, memory, maskl, maskw,endianw);",
+ " nip += trap (sd, i, &R0, PC, memory, maskl, maskw, endianw);",
#if 0
"else {",
/* SH-[12] */
- " R[15]-=4;",
- " WLAT (R[15], GET_SR());",
- " R[15]-=4;",
+ " R[15] -= 4;",
+ " WLAT (R[15], GET_SR ());",
+ " R[15] -= 4;",
" WLAT (R[15], PH2T (PC + 2));",
#else
"else if (!SR_BL) {",
- " SSR = GET_SR();",
+ " SSR = GET_SR ();",
" SPC = PH2T (PC + 2);",
- " SET_SR (GET_SR() | SR_MASK_MD | SR_MASK_BL | SR_MASK_RB);",
+ " SET_SR (GET_SR () | SR_MASK_MD | SR_MASK_BL | SR_MASK_RB);",
" /* FIXME: EXPEVT = 0x00000160; */",
#endif
" SET_NIP (PT2H (RLAT (VBR + (imm<<2))));",
#if 0
{ "divs.l <REG_M>,<REG_N>", "0100nnnnmmmm1110",
- "divl(0,R[n],R[m]);",
+ "divl (0, R[n], R[m]);",
},
{ "divu.l <REG_M>,<REG_N>", "0100nnnnmmmm1101",
- "divl(0,R[n],R[m]);",
+ "divl (0, R[n], R[m]);",
},
#endif
"/* nop */",
},
{ "", "", "ppi", "1111100000000000",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"ppi_insn (RIAT (nip));",
- "nip += 2;",
+ "SET_NIP (nip + 2);",
"iword &= 0xf7ff; goto top;",
},
#endif
};
/* 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",
0
};
static
-char *arg_type_list[] =
+const char * const arg_type_list[] =
{
"A_END",
"A_BDISP12",
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;
}
static void
-sorttab ()
+sorttab (void)
{
op *p = tab;
int len = 0;
}
static void
-gengastab ()
+gengastab (void)
{
op *p;
sorttab ();
{
printf ("%s %-30s\n", p->code, p->name);
}
+}
+static unsigned short table[1 << 16];
-}
+static int warn_conflicts = 0;
+
+static void
+conflict_warn (int val, int i)
+{
+ int ix, key;
+ int j = table[val];
-static unsigned char table[1 << 16];
+ 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'));
+
+ if (val >> 12 == key)
+ fprintf (stderr, " %s -- %s\n", tab[ix].code, tab[ix].name);
+ }
+
+ 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);
+ }
+
+ 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);
+ }
+}
/* 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 (val, i, s)
- int val;
- int i;
- char *s;
+expand_opcode (int val, int i, const char *s)
{
if (*s == 0)
{
+ if (warn_conflicts && table[val] != 0)
+ conflict_warn (val, i);
table[val] = i;
}
else
}
/* Print the jump table used to index an opcode into a switch
- statement entry. */
+ statement entry. */
static void
-dumptable (name, size, start)
- char *name;
- int size;
- int start;
+dumptable (const char *name, int size, int start)
{
int lump = 256;
int online = 16;
int i = start;
- printf ("unsigned char %s[%d]={\n", name, size);
+ printf ("unsigned short %s[%d]={\n", name, size);
while (i < start + size)
{
int j = 0;
static void
-filltable (p)
- op *p;
+filltable (op *p)
{
static int index = 1;
processing insns (ppi) for code 0xf800 (ppi nopx nopy). Copy the
latter tag to represent all combinations of ppi with ddt. */
static void
-expand_ppi_movxy ()
+expand_ppi_movxy (void)
{
int i;
}
static void
-gensim_caselist (p)
- op *p;
+gensim_caselist (op *p)
{
for (; p->name; p++)
{
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);
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;
break;
case '1':
sextbit = 12;
-
printf ("fff");
break;
}
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");
}
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 == '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");
+ 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");
}
}
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");
}
}
}
static void
-gensim ()
+gensim (void)
{
printf ("{\n");
printf ("/* REG_xy = [r4, r5, r0, r1]. */\n");
}
static void
-gendefines ()
+gendefines (void)
{
op *p;
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.
+ right entries in 'table' with the opcode index.
NOTE: tail recursion optimization removed for simplicity. */
static void
-expand_ppi_code (val, i, s)
- int val;
- int i;
- char *s;
+expand_ppi_code (int val, int i, const char *s)
{
int j;
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;
}
static void
-ppi_filltable ()
+ppi_filltable (void)
{
op *p;
ppi_index = 1;
}
static void
-ppi_gensim ()
+ppi_gensim (void)
{
op *p = ppi_tab;
printf (" (greater_equal = ~(overflow << 3 & res_grd) & DSR_MASK_G)\n");
printf ("\n");
printf ("static void\n");
- printf ("ppi_insn (iword)\n");
- printf (" int iword;\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");
int shift, j;
int cond = 0;
int havedecl = 0;
-
- char *s = p->code;
+ const char *s = p->code;
printf (" /* %s %s */\n", p->name, p->code);
printf (" case %d: \n", p->index);
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 (" 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 4: /* Signed Greater Than Or Equal Mode */\n");
+ printf (" case 5: /* Signed Greater Than Or Equal Mode */\n");
printf (" DSR |= greater_equal >> 7;\n");
printf (" }\n");
printf (" assign_z:\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 ();
projects / deliverable / binutils-gdb.git / blobdiff