#define OP_SIGNX (1 << 1) /* Sign-extend the operand */
#define OP_SHIFT2 (1 << 2) /* Shift field left by 2 */
#define OP_BITS5 (1 << 3) /* Only take the lo 5-bits of the operand */
+#define OP_GPR1 (1 << 4) /* fetch from the GPR1 registers */
struct operand_encoding opfields[] = {
{'0',-1,-1,"", "", (OP_NONE)}, /* special case for explicit zero */
{'x',23, 1,"int", "to", (OP_NONE)}, /* TRUE if move To; FALSE if move From */
{'y', 0,16,"t_reg", "offset", (OP_SIGNX)}, /* signed offset */
{'z', 0,16,"ut_reg","op2", (OP_NONE)}, /* unsigned immediate (zero extended) */
+ {'S',21, 5,"t_reg", "rs_reg", (OP_GPR|OP_GPR1)}, /* rs field, GPR[rs] and GPR1[rs] as source */
+ {'T',16, 5,"t_reg", "rt_reg", (OP_GPR|OP_GPR1)}, /* rt field, GPR[rt] and GPR1[rt] as source */
};
+
/* Main instruction encoding types: */
typedef enum {
NORMAL,
COP1X,
COP1S, /* These instructions live in the reserved FP format values: 0..15,18-19,22-31 */
+ MMINORM,
+ MMI0,
+ MMI1,
+ MMI2,
+ MMI3,
+
/* mips16 encoding types. */
I, RI, RR, RRI, RRR, RRI_A, ISHIFT, I8, I8_MOVR32, I8_MOV32R, I64, RI64
} inst_type;
FPSQRT,
FPCONVERT,
FPCOMPARE,
+ /* start-sanitize-r5900 */
+ MADD,
+ PABS,
+ PADD,
+ PADSBH,
+ POP,
+ PCMP,
+ PCPYH,
+ PCPYLD,
+ PCPYUD,
+ PEXCH,
+ PEXCW,
+ PEXOH,
+ PEXOW,
+ PEXTLB,
+ PEXTLH,
+ PEXTLW,
+ PEXTUB,
+ PEXTUH,
+ PEXTUW,
+ PPACB,
+ PPACH,
+ PPACW,
+ PREVH,
+ PROT3W,
+ PINTH,
+ PINTOH,
+ PMXX,
+ PMFHL,
+ PMTHL,
+ PMAXMIN,
+ QFSRV,
+ MxSA,
+ MTSAB,
+ MTSAH,
+ PSHIFT,
+ PSLLVW,
+ PSRLVW,
+ PSRAVW,
+ PLZCW,
+ PHMADDH,
+ PMULTH,
+ PMULTW,
+ PDIVBW,
+ PDIVW,
+ PEXT5,
+ PPAC5,
+ /* end-sanitize-r5900 */
+ NYI, /* Not Yet Implemented, placeholder, errors if used */
RSVD /* "Reserved Instruction" on MIPS IV, or if co-proc 3 absent. Otherwise "Reserved Instruction" */
} opcode_type;
#define DOUBLEWORD (3) /* 64bit */
#define SINGLE (4) /* single precision FP */
#define DOUBLE (5) /* double precision FP */
+#define QUADWORD (6) /* 128bit */
/* Shorthand to get the size field from the flags value: */
-#define GETDATASIZE() ((MIPS_DECODE[loop].flags >> SIM_SH_SIZE) & SIM_MASK_SIZE)
#define GETDATASIZEINSN(i) (((i)->flags >> SIM_SH_SIZE) & SIM_MASK_SIZE)
/* The rest are single bit flags: */
all options are applicable to all instruction types. This will free
up more space for new flags. */
+/* Overloadings of above bits */
+#define PIPE1 LIKELY /* Using pipeline 1 (DIV,MUL) */
+#define OP3 EQ /* 3 operand version of operation (MUL) */
+
+#define SATURATE OVERFLOW /* for PADD, saturate for overflow */
+
+#define SUBTRACT LEFT /* for PMULT, PMULT becomes PMSUB */
+#define ADDITION RIGHT /* for PMULT, PMULT becomes PMADD */
+
+#define FROM LEFT /* move from special register */
+#define TO RIGHT /* move to special register */
+
+/* For bitwise parallel operations */
+#define POP_AND BYTE /* for POP, op = & */
+#define POP_OR HALFWORD /* for POP, op = | */
+#define POP_NOR WORD /* for POP, op = ~(x | y) */
+#define POP_XOR DOUBLEWORD /* for POP, op = ^ */
+
+#define GET_OP_FROM_INSN(insn) GETDATASIZEINSN(insn)
+
typedef struct instruction {
char *name; /* ASCII mnemonic name */
unsigned int isa; /* MIPS ISA number where instruction introduced */
/* The other bits are allocated downwards, to avoid renumbering if we
have to extend the bits allocated to the pure ISA number. */
#define ARCH_VR4100 ((unsigned)1 << 31) /* NEC VR4100 extension instructions */
+/* start-sanitize-r5900 */
+#define ARCH_R5900 ((unsigned)1 << 30) /* Toshiba r5900 extension instructions */
+/* end-sanitize-r5900 */
+
+/* A list (or'ed) of extension insn sets that can be requested independant of the ISA# */
+#define MASK_ISA_INDEP (0 \
+ /* start-sanitize-r5900 */ \
+ | ARCH_R5900 \
+ /* end-sanitize-r5900 */ \
+ | 0)
+
+
+
+
+/* Very short names for use in the table below to keep it neet. */
+#define G1 (3 | ARCH_VR4100)
+
+#define G2 (4 \
+ /* start-sanitize-r5900 */ \
+ | ARCH_R5900 \
+ /* end-sanitize-r5900 */ \
+ | 0)
+
+#define G3 (4 \
+ /* start-sanitize-r5900 */ \
+ /* insn that are not really 5900 insn but were left in */ \
+ /* until we can rewrite the code-gen and libs */ \
+ | ARCH_R5900 \
+ /* end-sanitize-r5900 */ \
+ | 0)
+
+
+
+/* start-sanitize-r5900 */
+#define T5 ARCH_R5900
+/* end-sanitize-r5900 */
+
/* The HIBERNATE, STANDBY and SUSPEND instructions are encoded in the
COP0 space. This means that an external decoder should be added
{"DDIVU", 3,"000000sssssggggg0000000000011111",SPECIAL,DIV, (DOUBLEWORD | UNSIGNED | HI | LO)},
{"DIV", 1,"000000sssssggggg0000000000011010",SPECIAL,DIV, (WORD | WORD32 | SIGNEXTEND | HI | LO)},
{"DIV", 1,"01000110mmmkkkkkvvvvvrrrrr000011",COP1, FPDIV, (FP | WORD | HI | LO)},
+ /* start-sanitize-r5900 */
+ {"DIV1", T5,"011100sssssggggg0000000000011010",MMINORM,DIV, (WORD | WORD32 | SIGNEXTEND | HI | LO | PIPE1)},
+ /* end-sanitize-r5900 */
{"DIVU", 1,"000000sssssggggg0000000000011011",SPECIAL,DIV, (WORD | WORD32 | UNSIGNED | SIGNEXTEND | HI | LO)},
- {"DMADD16", (ARCH_VR4100 | 3),"000000sssssggggg0000000000101001",SPECIAL,MADD16, (DOUBLEWORD | HI | LO)},
+ /* start-sanitize-r5900 */
+ {"DIVU1", T5,"011100sssssggggg0000000000011011",MMINORM,DIV, (WORD | WORD32 | UNSIGNED | SIGNEXTEND | HI | LO | PIPE1)},
+ /* end-sanitize-r5900 */
+ {"DMADD16",G1,"000000sssssggggg0000000000101001",SPECIAL,MADD16, (DOUBLEWORD | HI | LO)},
{"DMULT", 3,"000000sssssggggg0000000000011100",SPECIAL,MUL, (DOUBLEWORD | HI | LO)},
{"DMULTU", 3,"000000sssssggggg0000000000011101",SPECIAL,MUL, (DOUBLEWORD | UNSIGNED | HI | LO)},
{"DMxC1", 3,"01000100x01kkkkkvvvvv00000000000",COP1S, FPMOVEC, (FP | DOUBLEWORD)},
{"LDC2", 2,"110110sssssttttteeeeeeeeeeeeeeee",NORMAL, LOAD, (DOUBLEWORD | COPROC)},
{"LDL", 3,"011010ssssstttttyyyyyyyyyyyyyyyy",NORMAL, LOAD, (DOUBLEWORD | LEFT)}, /* NOTE: See "LB" comment */
{"LDR", 3,"011011ssssstttttyyyyyyyyyyyyyyyy",NORMAL, LOAD, (DOUBLEWORD | RIGHT)}, /* NOTE: See "LB" comment */
- {"LDXC1", 4,"010011sssssggggg00000rrrrr000001",COP1X, LOAD, (FP | DOUBLEWORD | COPROC | REG)},
+ {"LDXC1", G3,"010011sssssggggg00000rrrrr000001",COP1X, LOAD, (FP | DOUBLEWORD | COPROC | REG)},
{"LH", 1,"100001sssssttttthhhhhhhhhhhhhhhh",NORMAL, LOAD, (HALFWORD | SIGNEXTEND)},
{"LHU", 1,"100101sssssttttthhhhhhhhhhhhhhhh",NORMAL, LOAD, (HALFWORD)},
{"LL", 2,"110000ssssstttttwwwwwwwwwwwwwwww",NORMAL, LOAD, (WORD | ATOMIC | SIGNEXTEND)},
{"LLD", 3,"110100sssssttttteeeeeeeeeeeeeeee",NORMAL, LOAD, (DOUBLEWORD | ATOMIC)},
{"LUI", 1,"00111100000tttttiiiiiiiiiiiiiiii",NORMAL, MOVE, (SHIFT16)}, /* Cheat and specify sign-extension of immediate field */
+ /* start-sanitize-r5900 */
+ {"LQ", T5,"011110sssssttttteeeeeeeeeeeeeeee",NORMAL, LOAD, (QUADWORD)},
+ /* end-sanitize-r5900 */
{"LW", 1,"100011ssssstttttwwwwwwwwwwwwwwww",NORMAL, LOAD, (WORD | SIGNEXTEND)},
{"LWC1", 1,"110001ssssstttttwwwwwwwwwwwwwwww",NORMAL, LOAD, (WORD | COPROC)},
{"LWC2", 1,"110010ssssstttttwwwwwwwwwwwwwwww",NORMAL, LOAD, (WORD | COPROC)},
{"LWL", 1,"100010ssssstttttyyyyyyyyyyyyyyyy",NORMAL, LOAD, (WORD | LEFT)},
{"LWR", 1,"100110ssssstttttyyyyyyyyyyyyyyyy",NORMAL, LOAD, (WORD | RIGHT)},
{"LWU", 3,"100111ssssstttttwwwwwwwwwwwwwwww",NORMAL, LOAD, (WORD)},
- {"LWXC1", 4,"010011sssssggggg00000rrrrr000000",COP1X, LOAD, (FP | WORD | COPROC | REG)},
- {"MADD16", (ARCH_VR4100 | 3),"000000sssssggggg0000000000101000",SPECIAL,MADD16, (WORD | HI | LO)},
- {"MADD.D", 4,"010011bbbbbkkkkkvvvvvrrrrr100001",COP1X, FPADD, (FP | MULTIPLY | DOUBLE)},
- {"MADD.S", 4,"010011bbbbbkkkkkvvvvvrrrrr100000",COP1X, FPADD, (FP | MULTIPLY | SINGLE)},
+ {"LWXC1", G3,"010011sssssggggg00000rrrrr000000",COP1X, LOAD, (FP | WORD | COPROC | REG)},
+ /* start-sanitize-r5900 */
+ {"MADD", T5,"011100sssssgggggddddd00000000000",MMINORM,MADD, (NONE)},
+ {"MADD1", T5,"011100sssssgggggddddd00000100000",MMINORM,MADD, (PIPE1)},
+ {"MADDU", T5,"011100sssssgggggddddd00000000001",MMINORM,MADD, (UNSIGNED)},
+ {"MADDU1", T5,"011100sssssgggggddddd00000100001",MMINORM,MADD, (UNSIGNED | PIPE1)},
+ /* end-sanitize-r5900 */
+ {"MADD16", G1,"000000sssssggggg0000000000101000",SPECIAL,MADD16, (WORD | HI | LO)},
+ {"MADD.D", G3,"010011bbbbbkkkkkvvvvvrrrrr100001",COP1X, FPADD, (FP | MULTIPLY | DOUBLE)},
+ {"MADD.S", G3,"010011bbbbbkkkkkvvvvvrrrrr100000",COP1X, FPADD, (FP | MULTIPLY | SINGLE)},
{"MFHI", 1,"0000000000000000ddddd00000010000",SPECIAL,MOVE, (HI | LEFT)}, /* with following, from and to denoted by usage of LEFT or RIGHT */
+ /* start-sanitize-r5900 */
+ {"MFHI1", T5,"0111000000000000ddddd00000010000",MMINORM,MOVE, (HI | LEFT | PIPE1)},
+ /* end-sanitize-r5900 */
{"MFLO", 1,"0000000000000000ddddd00000010010",SPECIAL,MOVE, (LO | LEFT)},
+ /* start-sanitize-r5900 */
+ {"MFLO1", T5,"0111000000000000ddddd00000010010",MMINORM,MOVE, (LO | LEFT | PIPE1)},
+ {"MFSA", T5,"0000000000000000ddddd00000101000",SPECIAL,MxSA, (FROM)},
+ /* end-sanitize-r5900 */
{"MTHI", 1,"000000sssss000000000000000010001",SPECIAL,MOVE, (HI | RIGHT)},
+ /* start-sanitize-r5900 */
+ {"MTHI1", T5,"011100sssss000000000000000010001",MMINORM,MOVE, (HI | RIGHT | PIPE1)},
+ /* end-sanitize-r5900 */
{"MTLO", 1,"000000sssss000000000000000010011",SPECIAL,MOVE, (LO | RIGHT)},
+ /* start-sanitize-r5900 */
+ {"MTLO1", T5,"011100sssss000000000000000010011",MMINORM,MOVE, (LO | RIGHT | PIPE1)},
+ {"MTSA", T5,"000000sssss000000000000000101001",SPECIAL,MxSA, (TO)},
+ {"MTSAB", T5,"000001sssss11000iiiiiiiiiiiiiiii",REGIMM, MTSAB, (NONE)},
+ {"MTSAH", T5,"000001sssss11001iiiiiiiiiiiiiiii",REGIMM, MTSAH, (NONE)},
+ /* end-sanitize-r5900 */
{"MOV", 1,"01000110mmm00000vvvvvrrrrr000110",COP1, FPMOVE, (FP)},
- {"MOVN", 4,"000000sssssgggggddddd00000001011",SPECIAL,MOVE, (NOT | EQ)},
- {"MOVN", 4,"01000110mmmgggggvvvvvrrrrr010011",COP1, FPMOVE, (FP | NOT | EQ)},
- {"MOV%c", 4,"000000sssssqqq0cddddd00000000001",SPECIAL,FPMOVE, (FP | CONDITIONAL | INTEGER)},
- {"MOV%c", 4,"01000110mmmqqq0cvvvvvrrrrr010001",COP1, FPMOVE, (FP | CONDITIONAL)},
- {"MOVZ", 4,"000000sssssgggggddddd00000001010",SPECIAL,MOVE, (EQ)},
- {"MOVZ", 4,"01000110mmmgggggvvvvvrrrrr010010",COP1, FPMOVE, (FP | EQ)},
- {"MSUB.D", 4,"010011bbbbbkkkkkvvvvvrrrrr101001",COP1X, FPSUB, (FP | MULTIPLY | DOUBLE)},
- {"MSUB.S", 4,"010011bbbbbkkkkkvvvvvrrrrr101000",COP1X, FPSUB, (FP | MULTIPLY | SINGLE)},
+ {"MOVN", G2,"000000sssssgggggddddd00000001011",SPECIAL,MOVE, (NOT | EQ)},
+ {"MOVN", G2,"01000110mmmgggggvvvvvrrrrr010011",COP1, FPMOVE, (FP | NOT | EQ)},
+ {"MOV%c", G3,"000000sssssqqq0cddddd00000000001",SPECIAL,FPMOVE, (FP | CONDITIONAL | INTEGER)},
+ {"MOV%c", G3,"01000110mmmqqq0cvvvvvrrrrr010001",COP1, FPMOVE, (FP | CONDITIONAL)},
+ {"MOVZ", G2,"000000sssssgggggddddd00000001010",SPECIAL,MOVE, (EQ)},
+ {"MOVZ", G2,"01000110mmmgggggvvvvvrrrrr010010",COP1, FPMOVE, (FP | EQ)},
+ {"MSUB.D", G3,"010011bbbbbkkkkkvvvvvrrrrr101001",COP1X, FPSUB, (FP | MULTIPLY | DOUBLE)},
+ {"MSUB.S", G3,"010011bbbbbkkkkkvvvvvrrrrr101000",COP1X, FPSUB, (FP | MULTIPLY | SINGLE)},
{"MUL", 1,"01000110mmmkkkkkvvvvvrrrrr000010",COP1, FPMUL, (FP | HI | LO)},
- {"MULT", 1,"000000sssssggggg0000000000011000",SPECIAL,MUL, (WORD | WORD32 | HI | LO)},
- {"MULTU", 1,"000000sssssggggg0000000000011001",SPECIAL,MUL, (WORD | WORD32 | UNSIGNED | HI | LO)},
+ {"MULT", 1,"000000sssssgggggddddd00000011000",SPECIAL,MUL, (OP3 | WORD | WORD32 | HI | LO)},
+ /* start-sanitize-r5900 */
+ {"MULT1", T5,"011100sssssgggggddddd00000011000",MMINORM,MUL, (OP3 | WORD | WORD32 | HI | LO | PIPE1)},
+ /* end-sanitize-r5900 */
+ {"MULTU", 1,"000000sssssgggggddddd00000011001",SPECIAL,MUL, (OP3 | WORD | WORD32 | UNSIGNED | HI | LO)},
+ /* start-sanitize-r5900 */
+ {"MULTU1", T5,"011100sssssgggggddddd00000011001",MMINORM,MUL, (OP3 | WORD | WORD32 | UNSIGNED | HI | LO | PIPE1)},
+ /* end-sanitize-r5900 */
{"MxC1", 1,"01000100x00kkkkkvvvvv00000000000",COP1S, FPMOVEC, (FP | WORD)},
{"NEG", 1,"01000110mmm00000vvvvvrrrrr000111",COP1, FPNEG, (FP)},
{"NMADD.D", 4,"010011bbbbbkkkkkvvvvvrrrrr110001",COP1X, FPADD, (FP | NOT | MULTIPLY | DOUBLE)},
{"NOR", 1,"000000sssssgggggddddd00000100111",SPECIAL,OR, (NOT)},
{"OR", 1,"000000sssssgggggddddd00000100101",SPECIAL,OR, (NONE)},
{"ORI", 1,"001101ssssstttttzzzzzzzzzzzzzzzz",NORMAL, OR, (NONE)},
- {"PREF", 4,"110011sssssnnnnnyyyyyyyyyyyyyyyy",NORMAL, PREFETCH, (NONE)},
+
+ /* start-sanitize-r5900 */
+ {"PABSH", T5,"01110000000TTTTTddddd00101101000",MMI1, PABS, (HALFWORD)},
+ {"PABSW", T5,"01110000000TTTTTddddd00001101000",MMI1, PABS, (WORD)},
+
+ {"PADDB", T5,"011100SSSSSTTTTTddddd01000001000",MMI0, PADD, (BYTE)},
+ {"PADDH", T5,"011100SSSSSTTTTTddddd00100001000",MMI0, PADD, (HALFWORD)},
+ {"PADDW", T5,"011100SSSSSTTTTTddddd00000001000",MMI0, PADD, (WORD)},
+
+ {"PADDSB", T5,"011100SSSSSTTTTTddddd11000001000",MMI0, PADD, (BYTE | SATURATE)},
+ {"PADDSH", T5,"011100SSSSSTTTTTddddd10100001000",MMI0, PADD, (HALFWORD | SATURATE)},
+ {"PADDSW", T5,"011100SSSSSTTTTTddddd10000001000",MMI0, PADD, (WORD | SATURATE)},
+
+ {"PADDUB", T5,"011100SSSSSTTTTTddddd11000101000",MMI1, PADD, (BYTE | UNSIGNED)},
+ {"PADDUH", T5,"011100SSSSSTTTTTddddd10100101000",MMI1, PADD, (HALFWORD | UNSIGNED)},
+ {"PADDUW", T5,"011100SSSSSTTTTTddddd10000101000",MMI1, PADD, (WORD | UNSIGNED)},
+
+ {"PADSBH", T5,"011100SSSSSTTTTTddddd00100101000",MMI1, PADSBH, (NONE)},
+
+ {"PAND", T5,"011100SSSSSTTTTTddddd10010001001",MMI2, POP, (POP_AND)},
+
+ {"PCEQB", T5,"011100SSSSSTTTTTddddd01010101000",MMI1, PCMP, (EQ | BYTE)},
+ {"PCEQH", T5,"011100SSSSSTTTTTddddd00110101000",MMI1, PCMP, (EQ | HALFWORD)},
+ {"PCEQW", T5,"011100SSSSSTTTTTddddd00010101000",MMI1, PCMP, (EQ | WORD)},
+
+ {"PCGTB", T5,"011100SSSSSTTTTTddddd01010001000",MMI0, PCMP, (GT | BYTE)},
+ {"PCGTH", T5,"011100SSSSSTTTTTddddd00110001000",MMI0, PCMP, (GT | HALFWORD)},
+ {"PCGTW", T5,"011100SSSSSTTTTTddddd00010001000",MMI0, PCMP, (GT | WORD)},
+
+ {"PCPYH", T5,"01110000000TTTTTddddd11011101001",MMI3, PCPYH, (NONE)},
+ {"PCPYLD", T5,"011100SSSSSTTTTTddddd01110001001",MMI2, PCPYLD, (NONE)},
+ {"PCPYUD", T5,"011100SSSSSTTTTTddddd01110101001",MMI3, PCPYUD, (NONE)},
+
+ {"PDIVBW", T5,"011100SSSSSTTTTT0000011101001001",MMI2, PDIVBW, (NONE)},
+ {"PDIVUW", T5,"011100SSSSSTTTTT0000001101101001",MMI3, PDIVW, (UNSIGNED)},
+ {"PDIVW", T5,"011100SSSSSTTTTT0000001101001001",MMI2, PDIVW, (NONE)},
+
+ {"PEXCH", T5,"01110000000TTTTTddddd11010101001",MMI3, PEXCH, (NONE)},
+ {"PEXCW", T5,"01110000000TTTTTddddd11110101001",MMI3, PEXCW, (NONE)},
+ {"PEXOH", T5,"01110000000TTTTTddddd11010001001",MMI2, PEXOH, (NONE)},
+ {"PEXOW", T5,"01110000000TTTTTddddd11110001001",MMI2, PEXOW, (NONE)},
+
+ {"PEXT5", T5,"01110000000TTTTTddddd11110001000",MMI0, PEXT5, (NONE)},
+
+ {"PEXTLB", T5,"011100SSSSSTTTTTddddd11010001000",MMI0, PEXTLB, (NONE)},
+ {"PEXTLH", T5,"011100SSSSSTTTTTddddd10110001000",MMI0, PEXTLH, (NONE)},
+ {"PEXTLW", T5,"011100SSSSSTTTTTddddd10010001000",MMI0, PEXTLW, (NONE)},
+ {"PEXTUB", T5,"011100SSSSSTTTTTddddd11010101000",MMI1, PEXTUB, (NONE)},
+ {"PEXTUH", T5,"011100SSSSSTTTTTddddd10110101000",MMI1, PEXTUH, (NONE)},
+ {"PEXTUW", T5,"011100SSSSSTTTTTddddd10010101000",MMI1, PEXTUW, (NONE)},
+
+ {"PHMADDH",T5,"011100SSSSSTTTTTddddd10001001001",MMI2, PHMADDH, (NONE)},
+ {"PHMSUBH",T5,"011100SSSSSTTTTTddddd10101001001",MMI2, PHMADDH, (SUBTRACT)},
+
+ {"PINTH", T5,"011100SSSSSTTTTTddddd01010001001",MMI2, PINTH, (NONE)},
+ {"PINTOH", T5,"011100SSSSSTTTTTddddd01010101001",MMI3, PINTOH, (NONE)},
+
+ {"PLZCW", T5,"011100SSSSS00000ddddd00000000100",MMINORM,PLZCW, (NONE)},
+
+ {"PMADDH", T5,"011100SSSSSTTTTTddddd10000001001",MMI2, PMULTH, (ADDITION)},
+ {"PMADDUW",T5,"011100SSSSSTTTTTddddd00000101001",MMI3, PMULTW, (UNSIGNED)},
+ {"PMADDW", T5,"011100SSSSSTTTTTddddd00000001001",MMI2, PMULTW, (ADDITION)},
+
+ {"PMAXH", T5,"011100SSSSSTTTTTddddd00111001000",MMI0, PMAXMIN, (GT | HALFWORD)},
+ {"PMAXW", T5,"011100SSSSSTTTTTddddd00011001000",MMI0, PMAXMIN, (GT | WORD)},
+
+ {"PMFHI", T5,"0111000000000000ddddd01000001001",MMI2, PMXX, (HI|FROM)},
+ {"PMFLO", T5,"0111000000000000ddddd01001001001",MMI2, PMXX, (LO|FROM)},
+
+ {"PMFHL", T5,"0111000000000000dddddaaaaa110000",MMINORM,PMFHL, (NONE)},
+
+ {"PMINH", T5,"011100SSSSSTTTTTddddd00111101000",MMI1, PMAXMIN, (LT | HALFWORD)},
+ {"PMINW", T5,"011100SSSSSTTTTTddddd00011101000",MMI1, PMAXMIN, (LT | WORD)},
+
+ {"PMSUBH", T5,"011100SSSSSTTTTTddddd10100001001",MMI2, PMULTH, (SUBTRACT)},
+ {"PMSUBW", T5,"011100SSSSSTTTTTddddd00100001001",MMI2, PMULTW, (SUBTRACT)},
+
+ {"PMTHI", T5,"011100SSSSS000000000001000101001",MMI3, PMXX, (HI|TO)},
+ {"PMTLO", T5,"011100SSSSS000000000001001101001",MMI3, PMXX, (LO|TO)},
+
+{"PMTHL.LW",T5,"011100SSSSS000000000000000110001",MMINORM,PMTHL, (NONE)},
+
+ {"PMULTH", T5,"011100SSSSSTTTTTddddd11100001001",MMI2, PMULTH, (NONE)},
+ {"PMULTUW",T5,"011100SSSSSTTTTTddddd01100101001",MMI3, PMULTW, (UNSIGNED)},
+ {"PMULTW", T5,"011100SSSSSTTTTTddddd01100001001",MMI2, PMULTW, (NONE)},
+
+ {"PNOR", T5,"011100SSSSSTTTTTddddd10011101001",MMI3, POP, (POP_NOR)},
+ {"POR", T5,"011100SSSSSTTTTTddddd10010101001",MMI3, POP, (POP_OR)},
+
+ {"PPAC5", T5,"01110000000TTTTTddddd11111001000",MMI0, PPAC5, (NONE)},
+
+ {"PPACB", T5,"011100SSSSSTTTTTddddd11011001000",MMI0, PPACB, (NONE)},
+ {"PPACH", T5,"011100SSSSSTTTTTddddd10111001000",MMI0, PPACH, (NONE)},
+ {"PPACW", T5,"011100SSSSSTTTTTddddd10011001000",MMI0, PPACW, (NONE)},
+
+ {"PREVH", T5,"01110000000TTTTTddddd11011001001",MMI2, PREVH, (NONE)},
+ {"PROT3W", T5,"01110000000TTTTTddddd11111001001",MMI2, PROT3W, (NONE)},
+
+ {"PSLLH", T5,"01110000000TTTTTdddddaaaaa110100",MMINORM,PSHIFT, (LEFT | LOGICAL | HALFWORD)},
+ {"PSLLVW", T5,"011100SSSSSTTTTTddddd00010001001",MMI2, PSLLVW, (NONE)},
+ {"PSLLW", T5,"01110000000TTTTTdddddaaaaa111100",MMINORM,PSHIFT, (LEFT | LOGICAL | WORD)},
+
+ {"PSRAH", T5,"01110000000TTTTTdddddaaaaa110111",MMINORM,PSHIFT, (RIGHT | ARITHMETIC | HALFWORD)},
+ {"PSRAVW", T5,"011100SSSSSTTTTTddddd00011101001",MMI3, PSRAVW, (NONE)},
+ {"PSRAW", T5,"01110000000TTTTTdddddaaaaa111111",MMINORM,PSHIFT, (RIGHT | ARITHMETIC | WORD)},
+
+ {"PSRLH", T5,"01110000000TTTTTdddddaaaaa110110",MMINORM,PSHIFT, (RIGHT | LOGICAL | HALFWORD)},
+ {"PSRLVW", T5,"011100SSSSSTTTTTddddd00011001001",MMI2, PSRLVW, (NONE)},
+ {"PSRLW", T5,"01110000000TTTTTdddddaaaaa111110",MMINORM,PSHIFT, (RIGHT | LOGICAL | WORD)},
+
+ {"PSUBB", T5,"011100SSSSSTTTTTddddd01001001000",MMI0, PADD, (SUBTRACT | BYTE)},
+ {"PSUBH", T5,"011100SSSSSTTTTTddddd00101001000",MMI0, PADD, (SUBTRACT | HALFWORD)},
+ {"PSUBSB", T5,"011100SSSSSTTTTTddddd11001001000",MMI0, PADD, (SUBTRACT | SATURATE | BYTE )},
+ {"PSUBSH", T5,"011100SSSSSTTTTTddddd10101001000",MMI0, PADD, (SUBTRACT | SATURATE | HALFWORD)},
+ {"PSUBSW", T5,"011100SSSSSTTTTTddddd10001001000",MMI0, PADD, (SUBTRACT | SATURATE | WORD)},
+ {"PSUBUB", T5,"011100SSSSSTTTTTddddd11001101000",MMI1, PADD, (SUBTRACT | UNSIGNED | BYTE)},
+ {"PSUBUH", T5,"011100SSSSSTTTTTddddd10101101000",MMI1, PADD, (SUBTRACT | UNSIGNED | HALFWORD)},
+ {"PSUBUW", T5,"011100SSSSSTTTTTddddd10001101000",MMI1, PADD, (SUBTRACT | UNSIGNED | WORD)},
+ {"PSUBW", T5,"011100SSSSSTTTTTddddd00001001000",MMI0, PADD, (SUBTRACT | WORD)},
+
+ {"PXOR", T5,"011100SSSSSTTTTTddddd10011001001",MMI2, POP, (POP_XOR)},
+ /* end-sanitize-r5900 */
+
+ {"PREF", G2,"110011sssssnnnnnyyyyyyyyyyyyyyyy",NORMAL, PREFETCH, (NONE)},
{"PREFX", 4,"010011sssssgggggvvvvv00000001111",COP1X, FPPREFX, (FP)},
+
+ /* start-sanitize-r5900 */
+ {"QFSRV", T5,"011100SSSSSTTTTTddddd11011101000",MMI1, QFSRV, (NONE)},
+ /* end-sanitize-r5900 */
+
{"RECIP", 4,"01000110mmm00000vvvvvrrrrr010101",COP1, FPRECIP, (FP)},
{"ROUND.L", 3,"01000110mmm00000vvvvvrrrrr001000",COP1, FPROUND, (FP | FIXED | DOUBLEWORD)},
{"ROUND.W", 2,"01000110mmm00000vvvvvrrrrr001100",COP1, FPROUND, (FP | FIXED | WORD)},
{"SDC2", 2,"111110sssssttttteeeeeeeeeeeeeeee",NORMAL, STORE, (DOUBLEWORD | COPROC)},
{"SDL", 3,"101100sssssgggggyyyyyyyyyyyyyyyy",NORMAL, STORE, (DOUBLEWORD | LEFT)},
{"SDR", 3,"101101sssssgggggyyyyyyyyyyyyyyyy",NORMAL, STORE, (DOUBLEWORD | RIGHT)},
- {"SDXC1", 4,"010011sssssgggggvvvvv00000001001",COP1X, STORE, (FP | DOUBLEWORD | COPROC | REG)},
+ {"SDXC1", G3,"010011sssssgggggvvvvv00000001001",COP1X, STORE, (FP | DOUBLEWORD | COPROC | REG)},
{"SH", 1,"101001sssssggggghhhhhhhhhhhhhhhh",NORMAL, STORE, (HALFWORD)},
{"SLL", 1,"00000000000gggggdddddaaaaa000000",SPECIAL,SHIFT, (WORD | LEFT | LOGICAL)}, /* rd = rt << sa */
{"SLLV", 1,"000000ooooogggggddddd00000000100",SPECIAL,SHIFT, (WORD | LEFT | LOGICAL)}, /* rd = rt << rs - with "SLL" depends on "s" and "a" field values */
{"SLTI", 1,"001010ssssstttttiiiiiiiiiiiiiiii",NORMAL, SET, (LT)},
{"SLTU", 1,"000000sssssgggggddddd00000101011",SPECIAL,SET, (LT | UNSIGNED)},
{"SLTIU", 1,"001011ssssstttttiiiiiiiiiiiiiiii",NORMAL, SET, (LT | UNSIGNED)},
+ /* start-sanitize-r5900 */
+ {"SQ", T5,"011111sssssTTTTTeeeeeeeeeeeeeeee",NORMAL, STORE, (QUADWORD)},
+ /* end-sanitize-r5900 */
{"SQRT", 2,"01000110mmm00000vvvvvrrrrr000100",COP1, FPSQRT, (FP)},
{"SRA", 1,"00000000000gggggdddddaaaaa000011",SPECIAL,SHIFT, (WORD | WORD32 | RIGHT | ARITHMETIC)},
{"SRAV", 1,"000000ooooogggggddddd00000000111",SPECIAL,SHIFT, (WORD | WORD32 | RIGHT | ARITHMETIC)},
{"SWC2", 1,"111010ssssstttttwwwwwwwwwwwwwwww",NORMAL, STORE, (WORD | COPROC)},
{"SWL", 1,"101010sssssgggggyyyyyyyyyyyyyyyy",NORMAL, STORE, (WORD | LEFT)},
{"SWR", 1,"101110sssssgggggyyyyyyyyyyyyyyyy",NORMAL, STORE, (WORD | RIGHT)},
- {"SWXC1", 4,"010011sssssgggggvvvvv00000001000",COP1X, STORE, (FP | WORD | COPROC | REG)},
+ {"SWXC1", G3,"010011sssssgggggvvvvv00000001000",COP1X, STORE, (FP | WORD | COPROC | REG)},
{"SYNC", 2,"000000000000000000000aaaaa001111",SPECIAL,SYNC, (NONE)}, /* z = 5bit stype field */
{"SYSCALL", 1,"000000????????????????????001100",SPECIAL,SYSCALL, (NOARG)},
{"TEQ", 2,"000000sssssggggg??????????110100",SPECIAL,TRAP, (EQ)},
/*---------------------------------------------------------------------------*/
-/* We use the letter ordinal as the bit-position in our flags field: */
-#define fieldval(l) (1 << ((l) - 'a'))
+static char*
+name_for_data_len( insn )
+ struct instruction* insn;
+ {
+ if (GETDATASIZEINSN(insn) == BYTE)
+ return "BYTE";
+
+ else if (GETDATASIZEINSN(insn) == HALFWORD)
+ return "HALFWORD";
+
+ else if (GETDATASIZEINSN(insn) == WORD)
+ return "WORD";
+
+ else if (GETDATASIZEINSN(insn) == DOUBLEWORD)
+ return "DOUBLEWORD";
+
+ else if (GETDATASIZEINSN(insn) == QUADWORD)
+ return "QUADWORD";
+
+ else
+ return 0;
+ }
+
+static char*
+letter_for_data_len( insn )
+ struct instruction* insn;
+ {
+ if (GETDATASIZEINSN(insn) == BYTE)
+ return "B";
+
+ else if (GETDATASIZEINSN(insn) == HALFWORD)
+ return "H";
+
+ else if (GETDATASIZEINSN(insn) == WORD)
+ return "W";
+
+ else if (GETDATASIZEINSN(insn) == DOUBLEWORD)
+ return "D";
+
+ else if (GETDATASIZEINSN(insn) == QUADWORD)
+ return "Q";
+
+ else
+ return 0;
+ }
+
+static char*
+type_for_data_len( insn )
+ struct instruction* insn;
+ {
+ if (GETDATASIZEINSN(insn) == BYTE)
+ return "int";
+
+ else if (GETDATASIZEINSN(insn) == HALFWORD)
+ return "int";
+
+ else if (GETDATASIZEINSN(insn) == WORD)
+ return "long";
+
+ else if (GETDATASIZEINSN(insn) == DOUBLEWORD)
+ return "long long";
+
+ else if (GETDATASIZEINSN(insn) == QUADWORD)
+ return 0;
+
+ else
+ return 0;
+ }
-unsigned int
+static char*
+max_for_data_len( insn )
+ struct instruction* insn;
+ {
+ if (GETDATASIZEINSN(insn) == BYTE)
+ return "127";
+
+ else if (GETDATASIZEINSN(insn) == HALFWORD)
+ return "32767";
+
+ else if (GETDATASIZEINSN(insn) == WORD)
+ return "(int)0x7FFFFFFF";
+
+ else if (GETDATASIZEINSN(insn) == DOUBLEWORD)
+ return 0;
+
+ else if (GETDATASIZEINSN(insn) == QUADWORD)
+ return 0;
+
+ else
+ return 0;
+ }
+
+static char*
+min_for_data_len( insn )
+ struct instruction* insn;
+ {
+ if (GETDATASIZEINSN(insn) == BYTE)
+ return "-128";
+
+ else if (GETDATASIZEINSN(insn) == HALFWORD)
+ return "-32768";
+
+ else if (GETDATASIZEINSN(insn) == WORD)
+ return "(int)0x80000000";
+
+ else if (GETDATASIZEINSN(insn) == DOUBLEWORD)
+ return 0;
+
+ else if (GETDATASIZEINSN(insn) == QUADWORD)
+ return 0;
+
+ else
+ return 0;
+ }
+
+static char*
+umax_for_data_len( insn )
+ struct instruction* insn;
+ {
+ if (GETDATASIZEINSN(insn) == BYTE)
+ return "0xFF";
+
+ else if (GETDATASIZEINSN(insn) == HALFWORD)
+ return "0xFFFF";
+
+ else if (GETDATASIZEINSN(insn) == WORD)
+ return "0xFFFFFFFF";
+
+ else if (GETDATASIZEINSN(insn) == DOUBLEWORD)
+ return 0;
+
+ else if (GETDATASIZEINSN(insn) == QUADWORD)
+ return 0;
+
+ else
+ return 0;
+ }
+
+static char*
+bits_for_data_len( insn )
+ struct instruction* insn;
+ {
+ if (GETDATASIZEINSN(insn) == BYTE)
+ return "8";
+
+ else if (GETDATASIZEINSN(insn) == HALFWORD)
+ return "16";
+
+ else if (GETDATASIZEINSN(insn) == WORD)
+ return "32";
+
+ else if (GETDATASIZEINSN(insn) == DOUBLEWORD)
+ return "64";
+
+ else if (GETDATASIZEINSN(insn) == QUADWORD)
+ return "128";
+
+ else
+ return 0;
+ }
+
+/*---------------------------------------------------------------------------*/
+
+
+void
convert_bitmap(bitmap,onemask,zeromask,dontmask)
char *bitmap;
unsigned int *onemask, *zeromask, *dontmask;
{
- unsigned int flags = 0x00000000;
int loop; /* current bitmap position */
int lastsp = -1; /* last bitmap field starting position */
int lastoe = -1; /* last bitmap field encoding */
{
if (opfields[oefield].fpos != -1) {
/* If flag not set, then check starting position: */
- if (!(flags & fieldval(bitmap[31 - loop]))) {
+ if (lastoe != oefield) {
if (loop != opfields[oefield].fpos) {
fprintf(stderr,"Bitmap field '%c' (0x%02X) at wrong offset %d in bitmap \"%s\"\n",(((bitmap[31 - loop] < 0x20) || (bitmap[31 - loop] >= 0x7F)) ? '.' : bitmap[31 - loop]),bitmap[31 - loop],loop,bitmap);
exit(4);
}
- flags |= fieldval(bitmap[31 - loop]);
lastsp = loop;
lastoe = oefield;
}
/* NOTE: Since we check for the position and size of fields when
parsing the "bitmap" above, we do *NOT* need to check that invalid
field combinations have been used. */
-
- return(flags);
}
/* Get the value of a 16 bit bitstring for a given shift count and
/*---------------------------------------------------------------------------*/
static void
-build_operands(flags)
- unsigned int flags;
+build_operands(doisa,features,insn)
+ int doisa;
+ unsigned int features;
+ instruction* insn;
{
- int loop;
- for (loop = 0; (loop < (sizeof(opfields) / sizeof(operand_encoding))); loop++)
- if ((opfields[loop].fpos != -1) && (flags & fieldval(opfields[loop].id))) {
- printf(" %s %s = ",opfields[loop].type,opfields[loop].name);
+ int proc64 = ((features & FEATURE_PROC32) ? 0 : -1);
+ int finish_jump_flag = 0;
+ int check_mult = 0;
+ int check_condition_code = 0;
+ int sfield_used = 0;
+ int gfield_used = 0;
+ int any_operand = 0;
- if (opfields[loop].flags & OP_SIGNX)
- printf("SIGNEXTEND((%s)",opfields[loop].type);
+ int current_field_id = -1;
+ int bitpos;
- if (opfields[loop].flags & OP_GPR)
- printf("GPR[");
+ for (bitpos=0; bitpos<32; bitpos++) {
+ if (insn->bitmap[31-bitpos] != current_field_id)
+ {
+ int opindex;
- if (opfields[loop].flags & OP_SHIFT2)
- printf("(");
+ current_field_id = insn->bitmap[31-bitpos];
- printf("((instruction >> %d) & 0x%08X)",opfields[loop].fpos,((1 << opfields[loop].flen) - 1));
+ for (opindex = 0; (opindex < (sizeof(opfields) / sizeof(operand_encoding))); opindex++)
+ if ((opfields[opindex].fpos != -1) && (opfields[opindex].id == insn->bitmap[31-bitpos])) {
- if (opfields[loop].flags & OP_SHIFT2)
- printf(" << 2)");
+ any_operand = 1;
- if (opfields[loop].flags & OP_GPR)
- printf("]");
+ printf(" %s %s = ",opfields[opindex].type,opfields[opindex].name);
- if (opfields[loop].flags & OP_BITS5)
- printf("&0x1F");
+ if (opfields[opindex].flags & OP_SIGNX)
+ printf("SIGNEXTEND((%s)",opfields[opindex].type);
- if (opfields[loop].flags & OP_SIGNX)
- printf(",%d)",(opfields[loop].flen + ((opfields[loop].flags & OP_SHIFT2) ? 2 : 0)));
+ if (opfields[opindex].flags & OP_GPR)
+ printf("GPR[");
- printf(";\n");
- }
+ if (opfields[opindex].flags & OP_SHIFT2)
+ printf("(");
- return;
+ printf("((instruction >> %d) & 0x%08X)",opfields[opindex].fpos,((1 << opfields[opindex].flen) - 1));
+
+ if (opfields[opindex].flags & OP_SHIFT2)
+ printf(" << 2)");
+
+ if (opfields[opindex].flags & OP_GPR)
+ printf("]");
+
+ if (opfields[opindex].flags & OP_BITS5)
+ printf("&0x1F");
+
+ if (opfields[opindex].flags & OP_SIGNX)
+ printf(",%d)",(opfields[opindex].flen + ((opfields[opindex].flags & OP_SHIFT2) ? 2 : 0)));
+
+ printf(";\n");
+
+ if (opfields[opindex].flags & OP_GPR1)
+ {
+ printf(" %s %s1 = GPR1[",opfields[opindex].type,opfields[opindex].name);
+ printf("((instruction >> %d) & 0x%08X)",
+ opfields[opindex].fpos,
+ ((1 << opfields[opindex].flen) - 1));
+ printf("];\n");
+ }
+
+ if (opfields[opindex].id == 'j')
+ finish_jump_flag = 1;
+
+ if (opfields[opindex].id == 'e')
+ check_mult = 8;
+
+ if (opfields[opindex].id == 'w')
+ check_mult = 4;
+
+ if (opfields[opindex].id == 'w')
+ check_mult = 2;
+
+ if (opfields[opindex].id == 'p')
+ check_condition_code = 1;
+
+ if (opfields[opindex].id == 's')
+ sfield_used = 1;
+
+ if (opfields[opindex].id == 'g')
+ gfield_used = 1;
+ }
+ }
+ }
+
+ if ( !any_operand && !(insn->flags & NOARG)) {
+ fprintf(stderr,"Bitmap error: Instruction with no operand fields \"%s\"\n",insn->name) ;
+ exit(5) ;
+ }
+
+ /* Finish constructing the jump address if required: */
+ if (finish_jump_flag)
+ printf(" op1 |= (PC & ~0x0FFFFFFF); /* address of instruction in delay slot for the jump */\n");
+
+ /* Now perform required operand checks: */
+
+ /* The following code has been removed, since it seems perfectly
+ reasonable to have a non-aligned offset that is added to another
+ non-aligned base to create an aligned address. Some more
+ information on exactly what the MIPS IV specification requires is
+ needed before deciding on the best strategy. Experimentation with a
+ VR4300 suggests that we do not need to raise the warning. */
+#if 0
+ /* For MIPS IV (and onwards), certain instruction operand values
+ will give undefined results. For the simulator we could
+ generate explicit exceptions (i.e. ReservedInstruction) to
+ make it easier to spot invalid use. However, for the moment we
+ just raise a warning. NOTE: This is a different check to the
+ later decoding, which checks for the final address being
+ valid. */
+
+ if (check_mult != 0 && check_mult != 1) {
+ printf(" if (instruction & 0x%1X)\n", check_mult);
+ printf(" {\n");
+ /* NOTE: If we change this to a SignalException(), we must
+ ensure that the following opcode processing is not
+ executed. i.e. the code falls straight out to the simulator
+ control loop. */
+ printf(" sim_warning(\"Instruction has lo-order offset bits set in instruction\");\n");
+ printf(" }\n");
+ }
+#endif
+
+ /* The extended condition codes only appeared in ISA IV */
+ if (check_condition_code && (doisa < 4)) {
+ printf(" if (condition_code != 0)\n");
+ printf(" {\n");
+ printf(" SignalException(ReservedInstruction,instruction);\n");
+ printf(" }\n");
+ printf(" else\n");
+ }
+
+ if ((insn->flags & WORD32) && (GETDATASIZEINSN(insn) != WORD)) {
+ fprintf(stderr,"Error in opcode table: WORD32 set for non-WORD opcode\n");
+ exit(1);
+ }
+
+#if 1
+ /* The R4000 book differs slightly from the MIPS IV ISA
+ manual. An example is the sign-extension of a 64-bit processor
+ SUBU operation, and what is meant by an Undefined Result. This
+ is now provided purely as a warning. After examining a HW
+ implementation, this is now purely a warning... and the actual
+ operation is performed, with possibly undefined results. */
+ if (((insn->flags & WORD32) && proc64) && (features & FEATURE_WARN_RESULT)) {
+ /* The compiler should optimise out an OR with zero */
+ printf(" if (%s | %s)\n",(sfield_used ? "NOTWORDVALUE(op1)" : "0"),(gfield_used ? "NOTWORDVALUE(op2)" : "0"));
+ printf(" UndefinedResult();\n") ;
+ }
+#else
+ /* Check that the source is a 32bit value */
+ if ((insn->flags & WORD32) && proc64) {
+ /* The compiler should optimise out an OR with zero */
+ printf(" if (%s | %s)\n",(sfield_used ? "NOTWORDVALUE(op1)" : "0"),(gfield_used ? "NOTWORDVALUE(op2)" : "0"));
+ printf(" UndefinedResult();\n") ;
+ printf(" else\n") ;
+ }
+#endif
+
+ return;
}
/* The mips16 operand table. */
printf (" unsigned int bigend = (BigEndianCPU ? 3 : 0);\n");
printf (" unsigned int byte;\n");
printf (" paddr = ((paddr & ~0x7) | ((paddr & 0x7) ^ (reverse << 1)));\n");
- printf (" memval = LoadMemory (uncached, AccessLength_HALFWORD, paddr, PC, isINSTRUCTION, isREAL);\n");
+ printf (" LoadMemory (&memval,0,uncached, AccessLength_HALFWORD, paddr, PC, isINSTRUCTION, isREAL);\n");
printf (" byte = (((PC &~ (uword64) 1) & 0x7) ^ (bigend << 1));\n");
printf (" memval = (memval >> (8 * byte)) & 0xffff;\n");
printf (" %s = (((%s & 0x1f) << 23)\n", op->name, op->name);
int limit;
printf("int num = ((instruction >> %d) & 0x%08X);\n",OP_SH_OP,OP_MASK_OP);
limit = (OP_MASK_OP + 1);
+
+ printf("#ifdef DEBUG\n");
+ printf("printf(\"DBG: instruction = 0x%%08X\\n\",instruction);\n");
+ printf("#endif\n");
+
printf("if (num == 0x00) num = (%d + ((instruction >> %d) & 0x%08X));\n",limit,OP_SH_SPEC,OP_MASK_SPEC);
limit += (OP_MASK_SPEC + 1);
+
printf("else if (num == 0x01) num = (%d + ((instruction >> %d) & 0x%08X));\n",limit,OP_SH_RT,OP_MASK_RT);
limit += (OP_MASK_RT + 1);
+
printf("else if (num == 0x11) {\n");
printf(" if ((instruction & (0x%08X << %d)) == 0x%08X)\n",OP_MASK_COP1NORM,OP_SH_COP1NORM,(OP_MASK_COP1NORM << OP_SH_COP1NORM));
printf(" if ((instruction & (0x%08X << %d)) == 0x%08X)\n",OP_MASK_COP1CMP,OP_SH_COP1CMP,(OP_MASK_COP1CMP << OP_SH_COP1CMP));
printf(" else\n");
printf(" num = (%d + ((instruction >> %d) & 0x%08X));\n",limit,OP_SH_SPEC,OP_MASK_SPEC);
limit += (OP_MASK_SPEC + 1);
+
printf(" else\n");
/* To keep this code quick, we just clear out the "to" bit
here. The proper (though slower) code would be to have another
move operation. */
printf(" num = (%d + (((instruction >> %d) & 0x%08X) & ~0x%08X));\n",limit,OP_SH_COP1SPEC,OP_MASK_COP1SPEC,OP_MASK_COP1SCLR);
limit += (OP_MASK_COP1SPEC + 1);
+
printf("} else if (num == 0x13) num = (%d + ((instruction >> %d) & 0x%08X));\n",limit,OP_SH_SPEC,OP_MASK_SPEC);
limit += (OP_MASK_SPEC + 1);
+
+ printf("else if (num == 0x1C) {\n");
+ printf(" int mmi_func = ((instruction >> %d) & 0x%08X);\n",OP_SH_MMI,OP_MASK_MMI);
+
+ printf(" if (mmi_func == 0x08) \n");
+ printf(" num = (%d + ((instruction >> %d) & 0x%08X));\n",limit,OP_SH_MMISUB,OP_MASK_MMISUB);
+ limit += (OP_MASK_MMISUB + 1);
+
+ printf(" else if (mmi_func == 0x28) \n");
+ printf(" num = (%d + ((instruction >> %d) & 0x%08X));\n",limit,OP_SH_MMISUB,OP_MASK_MMISUB);
+ limit += (OP_MASK_MMISUB + 1);
+
+ printf(" else if (mmi_func == 0x09) \n");
+ printf(" num = (%d + ((instruction >> %d) & 0x%08X));\n",limit,OP_SH_MMISUB,OP_MASK_MMISUB);
+ limit += (OP_MASK_MMISUB + 1);
+
+ printf(" else if (mmi_func == 0x29) \n");
+ printf(" num = (%d + ((instruction >> %d) & 0x%08X));\n",limit,OP_SH_MMISUB,OP_MASK_MMISUB);
+ limit += (OP_MASK_MMISUB + 1);
+
+ printf(" else \n");
+ printf(" num = (%d + mmi_func);\n",limit);
+ limit += (OP_MASK_MMI + 1);
+
+ printf("}\n");
+
printf("/* Total possible switch entries: %d */\n",limit) ;
}
+
+ printf("#ifdef DEBUG\n");
+ printf("printf(\"DBG: num = %%d\\n\",num);\n");
+ printf("#endif\n");
+
printf("switch (num)\n") ;
printf("{\n");
for (loop = 0; (loop < limit); loop++) {
- /* First check that the ISA number we are constructing for is
- valid, before checking if the instruction matches any of the
+ /* First check if the insn is in a requested isa# independent set,
+ then check that the ISA number we are constructing for is
+ valid, then if the instruction matches any of the
architecture specific flags. NOTE: We allow a selected ISA of
zero to be used to match all standard instructions. */
- if ((((MIPS_DECODE[loop].isa & MASK_ISA) <= doisa) && (((MIPS_DECODE[loop].isa & ~MASK_ISA) == 0) || ((MIPS_DECODE[loop].isa & ~MASK_ISA) & doarch) != 0)) && (!(MIPS_DECODE[loop].flags & FP) || ((MIPS_DECODE[loop].flags & FP) && dofp))) {
+ if (((MIPS_DECODE[loop].isa & doarch & MASK_ISA_INDEP)
+ || (((MIPS_DECODE[loop].isa & MASK_ISA) <= doisa)
+ && (((MIPS_DECODE[loop].isa & ~MASK_ISA) == 0)
+ || ((MIPS_DECODE[loop].isa & ~MASK_ISA) & doarch) != 0)))
+ && (!(MIPS_DECODE[loop].flags & FP) || ((MIPS_DECODE[loop].flags & FP) && dofp))) {
unsigned int onemask;
unsigned int zeromask;
unsigned int dontmask;
unsigned int mask;
unsigned int number;
- unsigned int flags = convert_bitmap(MIPS_DECODE[loop].bitmap,&onemask,&zeromask,&dontmask);
- if (!(MIPS_DECODE[loop].flags & COPROC) && ((GETDATASIZE() == DOUBLEWORD) && !proc64)) {
+ convert_bitmap(MIPS_DECODE[loop].bitmap,&onemask,&zeromask,&dontmask);
+
+ if (!(MIPS_DECODE[loop].flags & COPROC)
+ && ((GETDATASIZEINSN(&MIPS_DECODE[loop]) == DOUBLEWORD) && !proc64)) {
fprintf(stderr,"DOUBLEWORD width specified for non 64-bit processor for instruction \"%s\"\n",MIPS_DECODE[loop].name);
exit(4);
}
number = (((OP_MASK_OP + 1) + (OP_MASK_SPEC + 1) + (OP_MASK_RT + 1) + (OP_MASK_COP1SPEC + 1) + (OP_MASK_SPEC + 1)) + ((onemask >> OP_SH_SPEC) & OP_MASK_SPEC)) ;
break ;
+ case MMI0 :
+ mask = ((OP_MASK_OP << OP_SH_OP) | (OP_MASK_MMI << OP_SH_MMI)
+ | (OP_MASK_MMISUB << OP_SH_MMISUB));
+ number = (((OP_MASK_OP + 1) + (OP_MASK_SPEC + 1) + (OP_MASK_RT + 1)
+ + (OP_MASK_SPEC + 1) + (OP_MASK_COP1SPEC + 1) + (OP_MASK_SPEC + 1))
+ + ((onemask >> OP_SH_MMISUB) & OP_MASK_MMISUB)) ;
+ break ;
+
+ case MMI1 :
+ mask = ((OP_MASK_OP << OP_SH_OP) | (OP_MASK_MMI << OP_SH_MMI)
+ | (OP_MASK_MMISUB << OP_SH_MMISUB));
+ number = (((OP_MASK_OP + 1) + (OP_MASK_SPEC + 1) + (OP_MASK_RT + 1)
+ + (OP_MASK_SPEC + 1) + (OP_MASK_COP1SPEC + 1) + (OP_MASK_SPEC + 1))
+ + (OP_MASK_MMISUB + 1)
+ + ((onemask >> OP_SH_MMISUB) & OP_MASK_MMISUB)) ;
+ break ;
+
+ case MMI2 :
+ mask = ((OP_MASK_OP << OP_SH_OP) | (OP_MASK_MMI << OP_SH_MMI)
+ | (OP_MASK_MMISUB << OP_SH_MMISUB));
+ number = (((OP_MASK_OP + 1) + (OP_MASK_SPEC + 1) + (OP_MASK_RT + 1)
+ + (OP_MASK_SPEC + 1) + (OP_MASK_COP1SPEC + 1) + (OP_MASK_SPEC + 1))
+ + (OP_MASK_MMISUB + 1) + (OP_MASK_MMISUB + 1)
+ + ((onemask >> OP_SH_MMISUB) & OP_MASK_MMISUB)) ;
+ break ;
+
+ case MMI3 :
+ mask = ((OP_MASK_OP << OP_SH_OP) | (OP_MASK_MMI << OP_SH_MMI)
+ | (OP_MASK_MMISUB << OP_SH_MMISUB));
+ number = (((OP_MASK_OP + 1) + (OP_MASK_SPEC + 1) + (OP_MASK_RT + 1)
+ + (OP_MASK_SPEC + 1) + (OP_MASK_COP1SPEC + 1) + (OP_MASK_SPEC + 1))
+ + (OP_MASK_MMISUB + 1) + (OP_MASK_MMISUB + 1) + (OP_MASK_MMISUB + 1)
+ + ((onemask >> OP_SH_MMISUB) & OP_MASK_MMISUB)) ;
+ break ;
+
+ case MMINORM :
+ mask = ((OP_MASK_OP << OP_SH_OP) | (OP_MASK_MMI << OP_SH_MMI)) ;
+ number = (((OP_MASK_OP + 1) + (OP_MASK_SPEC + 1) + (OP_MASK_RT + 1)
+ + (OP_MASK_SPEC + 1) + (OP_MASK_COP1SPEC + 1) + (OP_MASK_SPEC + 1))
+ + (OP_MASK_MMISUB + 1) + (OP_MASK_MMISUB + 1) + (OP_MASK_MMISUB + 1)
+ + (OP_MASK_MMISUB + 1)
+ + ((onemask >> OP_SH_MMI) & OP_MASK_MMI)) ;
+ break ;
+
default :
fprintf(stderr,"Unrecognised opcode mark %d in table slot %d \"%s\"\n",MIPS_DECODE[loop].mark,loop,MIPS_DECODE[loop].name) ;
exit(5) ;
printf(" else\n") ;
}
- if ((flags == 0) && !(MIPS_DECODE[loop].flags & NOARG)) {
- fprintf(stderr,"Bitmap error: Instruction with no operand fields \"%s\"\n",MIPS_DECODE[loop].name) ;
- exit(5) ;
- }
-
printf(" {\n") ;
/* Get hold of the operands */
* particular operand here, since they are caught by the
* compilation of the produced code.
*/
- build_operands(flags);
-
- /* Finish constructing the jump address if required: */
- if (flags & fieldval('j'))
- printf(" op1 |= (PC & ~0x0FFFFFFF); /* address of instruction in delay slot for the jump */\n");
-
- /* Now perform required operand checks: */
-
-/* The following code has been removed, since it seems perfectly
- reasonable to have a non-aligned offset that is added to another
- non-aligned base to create an aligned address. Some more
- information on exactly what the MIPS IV specification requires is
- needed before deciding on the best strategy. Experimentation with a
- VR4300 suggests that we do not need to raise the warning. */
-#if 0
- /* For MIPS IV (and onwards), certain instruction operand values
- will give undefined results. For the simulator we could
- generate explicit exceptions (i.e. ReservedInstruction) to
- make it easier to spot invalid use. However, for the moment we
- just raise a warning. NOTE: This is a different check to the
- later decoding, which checks for the final address being
- valid. */
- if ((flags & (fieldval('e') | fieldval('w') | fieldval('h'))) && (doisa >= 4)) {
- printf(" if (instruction & 0x%1X)\n",((flags & fieldval('e')) ? 0x7 : ((flags & fieldval('w')) ? 0x3 : 0x1)));
- printf(" {\n");
- /* NOTE: If we change this to a SignalException(), we must
- ensure that the following opcode processing is not
- executed. i.e. the code falls straight out to the simulator
- control loop. */
- printf(" sim_warning(\"Instruction has lo-order offset bits set in instruction\");\n");
- printf(" }\n");
- }
-#endif
-
- /* The extended condition codes only appeared in ISA IV */
- if ((flags & fieldval('p')) && (doisa < 4)) {
- printf(" if (condition_code != 0)\n");
- printf(" {\n");
- printf(" SignalException(ReservedInstruction,instruction);\n");
- printf(" }\n");
- printf(" else\n");
- }
-
- if ((MIPS_DECODE[loop].flags & WORD32) && (GETDATASIZE() != WORD)) {
- fprintf(stderr,"Error in opcode table: WORD32 set for non-WORD opcode\n");
- exit(1);
- }
-
-#if 1
- /* The R4000 book differs slightly from the MIPS IV ISA
- manual. An example is the sign-extension of a 64-bit processor
- SUBU operation, and what is meant by an Undefined Result. This
- is now provided purely as a warning. After examining a HW
- implementation, this is now purely a warning... and the actual
- operation is performed, with possibly undefined results. */
- if (((MIPS_DECODE[loop].flags & WORD32) && proc64) && (features & FEATURE_WARN_RESULT)) {
- /* The compiler should optimise out an OR with zero */
- printf(" if (%s | %s)\n",((flags & fieldval('s')) ? "NOTWORDVALUE(op1)" : "0"),((flags & fieldval('g')) ? "NOTWORDVALUE(op2)" : "0"));
- printf(" UndefinedResult();\n") ;
- }
-#else
- /* Check that the source is a 32bit value */
- if ((MIPS_DECODE[loop].flags & WORD32) && proc64) {
- /* The compiler should optimise out an OR with zero */
- printf(" if (%s | %s)\n",((flags & fieldval('s')) ? "NOTWORDVALUE(op1)" : "0"),((flags & fieldval('g')) ? "NOTWORDVALUE(op2)" : "0"));
- printf(" UndefinedResult();\n") ;
- printf(" else\n") ;
- }
-#endif
+ build_operands(doisa, features, &MIPS_DECODE[loop]);
printf(" {\n") ;
break ;
case MUL:
+ {
+ char* pipe = (insn->flags & PIPE1) ? "1" : "";
+
if (features & FEATURE_WARN_LOHI) {
printf(" CHECKHILO(\"Multiplication\");\n");
}
printf(" if (op1 < 0) { op1 = - op1; ++sign; }\n");
printf(" if (op2 < 0) { op2 = - op2; ++sign; }\n");
}
- printf(" LO = ((uword64)WORD64LO(op1) * WORD64LO(op2));\n");
- printf(" HI = ((uword64)WORD64HI(op1) * WORD64HI(op2));\n");
+ printf(" LO%s = ((uword64)WORD64LO(op1) * WORD64LO(op2));\n",pipe);
+ printf(" HI%s = ((uword64)WORD64HI(op1) * WORD64HI(op2));\n",pipe);
printf(" mid = ((uword64)WORD64HI(op1) * WORD64LO(op2));\n");
printf(" midhi = SET64HI(WORD64LO(mid));\n");
- printf(" temp = (LO + midhi);\n");
- printf(" if ((temp == midhi) ? (LO != 0) : (temp < midhi))\n");
- printf(" HI += 1;\n");
- printf(" HI += WORD64HI(mid);\n");
+ printf(" temp = (LO%s + midhi);\n",pipe);
+ printf(" if ((temp == midhi) ? (LO%s != 0) : (temp < midhi))\n",pipe);
+ printf(" HI%s += 1;\n",pipe);
+ printf(" HI%s += WORD64HI(mid);\n",pipe);
printf(" mid = ((uword64)WORD64LO(op1) * WORD64HI(op2));\n");
printf(" midhi = SET64HI(WORD64LO(mid));\n");
- printf(" LO = (temp + midhi);\n");
- printf(" if ((LO == midhi) ? (temp != 0) : (LO < midhi))\n");
- printf(" HI += 1;\n");
- printf(" HI += WORD64HI(mid);\n");
+ printf(" LO%s = (temp + midhi);\n",pipe);
+ printf(" if ((LO%s == midhi) ? (temp != 0) : (LO%s < midhi))\n",pipe,pipe);
+ printf(" HI%s += 1;\n",pipe);
+ printf(" HI%s += WORD64HI(mid);\n",pipe);
if ((insn->flags & UNSIGNED) == 0)
- printf(" if (sign & 1) { LO = - LO; HI = (LO == 0 ? 0 : -1) - HI; }\n");
+ printf(" if (sign & 1) { LO%s = - LO%s; HI%s = (LO%s == 0 ? 0 : -1) - HI%s; }\n",pipe,pipe,pipe,pipe,pipe);
} else {
if (insn->flags & UNSIGNED)
printf(" uword64 temp = ((uword64)(op1 & 0xffffffff) * (uword64)(op2 & 0xffffffff));\n");
else
printf(" uword64 temp = ((word64) op1 * (word64) op2);\n");
- printf(" LO = SIGNEXTEND((%s)WORD64LO(temp),32);\n",regtype);
- printf(" HI = SIGNEXTEND((%s)WORD64HI(temp),32);\n",regtype);
+ printf(" LO%s = SIGNEXTEND((%s)WORD64LO(temp),32);\n",pipe,regtype);
+ printf(" HI%s = SIGNEXTEND((%s)WORD64HI(temp),32);\n",pipe,regtype);
}
+ if (insn->flags & OP3)
+ {
+ printf(" if ( destreg != 0 )\n");
+ printf(" GPR[destreg] = LO%s;\n",pipe);
+ }
printf(" }\n");
break ;
-
+ }
case DIV:
{
int boolU = (insn->flags & UNSIGNED);
+ int pipe1 = (insn->flags & PIPE1);
if (features & FEATURE_WARN_LOHI) {
printf(" CHECKHILO(\"Division\");\n");
}
printf(" {\n");
if (GETDATASIZEINSN(insn) == DOUBLEWORD) {
- printf(" LO = ((%sword64)op1 / (%sword64)op2);\n",(boolU ? "u" : ""),(boolU ? "u" : ""));
- printf(" HI = ((%sword64)op1 %c (%sword64)op2);\n",(boolU ? "u" : ""),'%',(boolU ? "u" : ""));
+ printf(" LO%s = ((%sword64)op1 / (%sword64)op2);\n",
+ (pipe1 ? "1" : ""),
+ (boolU ? "u" : ""),(boolU ? "u" : ""));
+ printf(" HI%s = ((%sword64)op1 %c (%sword64)op2);\n",
+ (pipe1 ? "1" : ""),
+ (boolU ? "u" : ""),'%',(boolU ? "u" : ""));
} else {
- printf(" LO = SIGNEXTEND(((%sint)op1 / (%sint)op2),32);\n",(boolU ? "unsigned " : ""),(boolU ? "unsigned " : ""));
- printf(" HI = SIGNEXTEND(((%sint)op1 %c (%sint)op2),32);\n",(boolU ? "unsigned " : ""),'%',(boolU ? "unsigned " : ""));
+ printf(" LO%s = SIGNEXTEND(((%sint)op1 / (%sint)op2),32);\n",
+ (pipe1 ? "1" : ""),
+ (boolU ? "unsigned " : ""),(boolU ? "unsigned " : ""));
+ printf(" HI%s = SIGNEXTEND(((%sint)op1 %c (%sint)op2),32);\n",
+ (pipe1 ? "1" : ""),
+ (boolU ? "unsigned " : ""),'%',(boolU ? "unsigned " : ""));
}
printf(" }\n");
}
case MOVE:
if (insn->flags & (HI | LO)) {
char *regname = ((insn->flags & LO) ? "LO" : "HI");
+ int pipe1 = (insn->flags & PIPE1);
if (insn->flags & LEFT)
- printf(" GPR[destreg] = %s;\n",regname);
+ printf(" GPR[destreg] = %s%s;\n",regname,(pipe1 ? "1" : ""));
else {
if (features & FEATURE_WARN_LOHI) {
- printf(" if (%sACCESS != 0)\n",regname);
+ printf(" if (%s%sACCESS != 0)\n",regname,(pipe1 ? "1" : ""));
printf(" sim_warning(\"MT (move-to) over-writing %s register value\");\n",regname);
}
- printf(" %s = op1;\n",regname);
+ printf(" %s%s = op1;\n",regname,(pipe1 ? "1" : ""));
}
if (features & FEATURE_WARN_LOHI)
- printf(" %sACCESS = 3; /* 3rd instruction will be safe */\n",regname);
+ printf(" %s%sACCESS = 3; /* 3rd instruction will be safe */\n",regname,(pipe1 ? "1" : ""));
} else
if (insn->flags & SHIFT16)
printf(" GPR[destreg] = (op2 << 16);\n");
datalen = 8;
accesslength = "AccessLength_DOUBLEWORD";
break ;
+
+ case QUADWORD :
+ datalen = 16;
+ accesslength = "AccessLength_QUADWORD";
+ break ;
}
if (insn->flags & REG)
else {
printf(" {\n");
printf(" uword64 memval;\n");
+ printf(" uword64 memval1;\n");
if ((insn->flags & COPROC) && ((datalen != 4) && (datalen != 8))) {
fprintf(stderr,"Co-processor transfer operation not WORD or DOUBLEWORD in length \"%s\"\n",insn->name);
printf(" int byte;\n");
printf(" paddr = ((paddr & ~mask) | ((paddr & mask) ^ reverse));\n");
printf(" byte = ((vaddr & mask) ^ bigend);\n");
- printf(" if (%sBigEndianCPU)\n",((insn->flags & LEFT) ? "!" : ""));
+ printf(" if (%s!ByteSwapMem)\n",((insn->flags & LEFT) ? "!" : ""));
printf(" paddr &= ~mask;\n");
if (isload) {
if (insn->flags & LEFT)
- printf(" memval = LoadMemory(uncached,byte,paddr,vaddr,isDATA,isREAL);\n");
+ {
+ printf(" LoadMemory(&memval,&memval1,uncached,byte,paddr,vaddr,isDATA,isREAL);\n");
+ }
else
- printf(" memval = LoadMemory(uncached,(%d - byte),paddr,vaddr,isDATA,isREAL);\n",(datalen - 1));
+ {
+ printf(" LoadMemory(&memval,&memval1,uncached,(%d - byte),paddr,vaddr,isDATA,isREAL);\n",(datalen - 1));
+ }
}
if (insn->flags & LEFT) {
printf(" }\n");
}
#endif
- printf(" StoreMemory(uncached,byte,memval,paddr,vaddr,isREAL);\n");
+ printf(" StoreMemory(uncached,byte,memval,memval1,paddr,vaddr,isREAL);\n");
}
} else { /* RIGHT */
if (isload) {
} else { /* store */
printf(" memval = ((uword64) op2 << (byte * 8));\n");
build_endian_shift(proc64,datalen,2,s_left,32);
- printf(" StoreMemory(uncached,(%s - byte),memval,paddr,vaddr,isREAL);\n",accesslength);
+ printf(" StoreMemory(uncached,(%s - byte),memval,memval1,paddr,vaddr,isREAL);\n",accesslength);
}
}
}
printf(" unsigned int byte;\n");
/* TODO: This should really also check for 32bit world performing 32bit access */
- if (datalen != 8) /* not for DOUBLEWORD */
+ if (datalen < 8) /* not for DOUBLEWORD or QUADWORD*/
printf(" paddr = ((paddr & ~mask) | ((paddr & mask) ^ (reverse << shift)));\n");
- printf(" memval = LoadMemory(uncached,%s,paddr,vaddr,isDATA,isREAL);\n",accesslength);
-
+ printf(" LoadMemory(&memval,&memval1,uncached,%s,paddr,vaddr,isDATA,isREAL);\n",accesslength);
+
/* The following will only make sense if the
"LoadMemory" above returns a DOUBLEWORD entity */
- if (datalen != 8) { /* not for DOUBLEWORD */
+ if (datalen < 8) { /* not for DOUBLEWORD or QUADWORD*/
int valmask;
switch (datalen) {
case 1:
? "1"
: "((instruction >> 26) & 0x3)"));
else
- printf(" GPR[destreg] = memval;\n");
+ {
+ printf(" GPR[destreg] = memval;\n");
+ if (datalen > 8)
+ printf(" GPR1[destreg] = memval1;\n");
+ }
}
} else { /* store operation */
if ((datalen == 1) || (datalen == 2)) {
((insn->flags & FP) ? "fs" : "destreg"));
else
printf(" memval = ((uword64) op2 << (8 * byte));\n");
- } else { /* SD and SCD */
+ } else if (datalen <= 8) { /* SD and SCD */
if (!(insn->flags & COPROC) && ((datalen == 8) || ((datalen == 4) & (insn->flags & UNSIGNED))) && !proc64) {
fprintf(stderr,"Operation not available with 32bit wide memory access \"%s\"\n",insn->name);
exit(4);
((insn->flags & FP) ? "fs" : "destreg"));
else
printf(" memval = op2;\n");
+ } else { /* wider than 8 */
+ if (insn->flags & COPROC) {
+ fprintf(stderr,"COPROC not available for 128 bit operations \"%s\"\n",insn->name);
+ exit(4);
+ }
+ printf(" memval = rt_reg;\n");
+ printf(" memval1 = rt_reg1;\n");
}
if (insn->flags & ATOMIC)
printf(" if (LLBIT)\n");
printf(" {\n");
- printf(" StoreMemory(uncached,%s,memval,paddr,vaddr,isREAL);\n",accesslength);
+ printf(" StoreMemory(uncached,%s,memval,memval1,paddr,vaddr,isREAL);\n",accesslength);
printf(" }\n");
}
printf(" }\n");
break ;
+/* start-sanitize-r5900 */
+ case MADD:
+ {
+ char* pipeline = (insn->flags & PIPE1) ? "1" : "";
+ int notsigned = (insn->flags & UNSIGNED);
+ char* prodtype = notsigned ? "uword64" : "word64";
+
+ printf("%s prod = (%s)WORD64(WORD64LO(HI%s),WORD64LO(LO%s)) + ((%s)%s(op1%s) * (%s)%s(op2%s));\n",
+ prodtype, prodtype, pipeline, pipeline,
+ prodtype, (notsigned ? "WORD64LO" : "SIGNEXTEND"), (notsigned ? "" : ",32"),
+ prodtype, (notsigned ? "WORD64LO" : "SIGNEXTEND"), (notsigned ? "" : ",32")
+ );
+ printf("GPR[destreg] = LO%s = SIGNEXTEND(prod,32);\n", pipeline );
+ printf("HI%s = SIGNEXTEND( WORD64HI(prod), 32);\n", pipeline );
+ break;
+ }
+
+ case MxSA:
+ {
+ if (insn->flags & TO)
+ printf("SA = op1;\n");
+ else
+ printf("GPR[destreg] = SA;\n");
+ break;
+ }
+
+ case MTSAB:
+ printf("SA = ((op1 & 0xF) ^ (op2 & 0xF)) * 8;\n");
+ break;
+
+ case MTSAH:
+ printf("SA = ((op1 & 0x7) ^ (op2 & 0x7)) * 16;\n");
+ break;
+
+ case QFSRV:
+ printf("int bytes = (SA / 8) %% 16;\n"); /* mod 16 to avoid garbage */
+ printf("if (SA %% 8)\n");
+ printf(" SignalException(ReservedInstruction,instruction);\n");
+ printf("else\n");
+ printf(" {\n");
+ printf(" int i;\n");
+ printf(" for(i=0;i<(16-bytes);i++)\n");
+ printf(" GPR_SB(destreg,i) = RT_SB(bytes+i);\n");
+ printf(" for(;i<16;i++)\n");
+ printf(" GPR_SB(destreg,i) = RS_SB(i-(16-bytes));\n");
+ printf(" }\n");
+ break;
+
+ case PADD:
+ {
+ char* op = (insn->flags & SUBTRACT) ? "-" : "+";
+ char* name = name_for_data_len( insn );
+ char* letter = letter_for_data_len( insn );
+
+ char* tmptype;
+ char* maximum;
+ char* minimum;
+ char* signedness;
+
+ if ( insn->flags & UNSIGNED )
+ {
+ tmptype = type_for_data_len( insn );
+ signedness = "unsigned";
+ maximum = umax_for_data_len( insn );
+ minimum = 0;
+ }
+ else if ( insn->flags & SATURATE )
+ {
+ tmptype = type_for_data_len( insn );
+ signedness = "";
+ maximum = 0;
+ minimum = 0;
+ }
+ else
+ {
+ tmptype = type_for_data_len( insn );
+ signedness = "";
+ maximum = max_for_data_len( insn );
+ minimum = min_for_data_len( insn );
+ }
+
+ printf("int i;\n");
+ printf("for(i=0;i<%sS_IN_MMI_REGS;i++)\n", name );
+ printf(" {\n");
+ printf(" %s %s r = RS_S%s(i) %s RT_S%s(i);\n", signedness, tmptype, letter, op, letter );
+ if ( maximum )
+ {
+ printf(" if (r > %s) GPR_S%s(destreg,i) = %s;\n", maximum, letter, maximum );
+ if ( minimum )
+ printf(" else if (r < %s) GPR_S%s(destreg,i) = %s;\n", minimum, letter, minimum );
+ printf(" else ");
+ }
+ printf("GPR_S%s(destreg,i) = r;\n", letter );
+ printf(" }\n");
+ break;
+ }
+
+ case PMULTH:
+ {
+ char* op;
+ if ( insn->flags & SUBTRACT )
+ op = "-";
+ else if ( insn->flags & ADDITION )
+ op = "+";
+ else
+ op = "";
+
+ printf("GPR_SW(destreg,0) = LO_SW(0) %s= (RS_SH(0) * RT_SH(0));\n", op);
+ printf(" LO_SW(1) %s= (RS_SH(1) * RT_SH(1));\n", op);
+ printf("GPR_SW(destreg,1) = HI_SW(0) %s= (RS_SH(2) * RT_SH(2));\n", op);
+ printf(" HI_SW(1) %s= (RS_SH(3) * RT_SH(3));\n", op);
+ printf("GPR_SW(destreg,2) = LO_SW(2) %s= (RS_SH(4) * RT_SH(4));\n", op);
+ printf(" LO_SW(3) %s= (RS_SH(5) * RT_SH(5));\n", op);
+ printf("GPR_SW(destreg,3) = HI_SW(2) %s= (RS_SH(6) * RT_SH(6));\n", op);
+ printf(" HI_SW(3) %s= (RS_SH(7) * RT_SH(7));\n", op);
+ break;
+ }
+
+ case PMULTW:
+ {
+ char* op;
+ char* sign = (insn->flags & UNSIGNED) ? "U" : "S";
+ char* prodtype = (insn->flags & UNSIGNED) ? "uword64" : "word64";
+ char* constructor = (insn->flags & UNSIGNED) ? "UWORD64" : "WORD64";
+
+ printf("%s prod0;\n", prodtype );
+ printf("%s prod1;\n", prodtype );
+
+ if ( insn->flags & SUBTRACT )
+ {
+ op = "-";
+ printf("prod0 = %s( HI_SW(0), LO_SW(0) );\n", constructor );
+ printf("prod1 = %s( HI_SW(2), LO_SW(2) );\n", constructor );
+ }
+ else if ( insn->flags & ADDITION )
+ {
+ op = "+";
+ printf("prod0 = %s( HI_SW(0), LO_SW(0) );\n", constructor );
+ printf("prod1 = %s( HI_SW(2), LO_SW(2) );\n", constructor );
+ }
+ else
+ op = "";
+
+ printf("prod0 %s= (%s)RS_SW(0) * (%s)RT_SW(0);\n", op, prodtype, prodtype );
+ printf("prod1 %s= (%s)RS_SW(2) * (%s)RT_SW(2);\n", op, prodtype, prodtype );
+
+ printf("GPR_%sD(destreg,0) = prod0;\n", sign );
+ printf("GPR_%sD(destreg,1) = prod1;\n", sign );
+
+ printf("LO = SIGNEXTEND( prod0, 32 );\n");
+ printf("HI = SIGNEXTEND( WORD64HI(prod0), 32 );\n");
+ printf("LO1 = SIGNEXTEND( prod1, 32 );\n");
+ printf("HI1 = SIGNEXTEND( WORD64HI(prod1), 32 );\n");
+ break;
+ }
+
+ case PDIVW:
+ {
+ char* sign = (insn->flags & UNSIGNED) ? "U" : "S";
+
+ printf("LO = RS_%sW(0) / RT_%sW(0);\n", sign, sign );
+ printf("HI = RS_%sW(0) %% RT_%sW(0);\n", sign, sign );
+ printf("LO1 = RS_%sW(2) / RT_%sW(2);\n", sign, sign );
+ printf("HI1 = RS_%sW(2) %% RT_%sW(2);\n", sign, sign );
+ break;
+ }
+
+ case PDIVBW:
+ printf("int devisor = RT_SH(0);\n");
+ printf("LO_SW(0) = RS_SW(0) / devisor;\n");
+ printf("HI_SW(0) = SIGNEXTEND( (RS_SW(0) %% devisor), 16 );\n");
+ printf("LO_SW(1) = RS_SW(1) / devisor;\n");
+ printf("HI_SW(1) = SIGNEXTEND( (RS_SW(1) %% devisor), 16 );\n");
+ printf("LO_SW(2) = RS_SW(2) / devisor;\n");
+ printf("HI_SW(2) = SIGNEXTEND( (RS_SW(2) %% devisor), 16 );\n");
+ printf("LO_SW(3) = RS_SW(3) / devisor;\n");
+ printf("HI_SW(3) = SIGNEXTEND( (RS_SW(3) %% devisor), 16 );\n");
+ break;
+
+ case PADSBH:
+ printf("int i;\n");
+ printf("for(i=0;i<HALFWORDS_IN_MMI_REGS/2;i++)\n");
+ printf(" GPR_SH(destreg,i) = RS_SH(i) - RT_SH(i);\n");
+ printf("for(;i<HALFWORDS_IN_MMI_REGS;i++)\n");
+ printf(" GPR_SH(destreg,i) = RS_SH(i) + RT_SH(i);\n");
+ break;
+
+ case PHMADDH:
+ {
+ char* op = (insn->flags & SUBTRACT) ? "-" : "+";
+ printf("GPR_SW(destreg,0) = LO_SW(0) = (RS_SH(1) * RT_SH(1)) %s (RS_SH(0) * RT_SH(0));\n", op );
+ printf("GPR_SW(destreg,1) = HI_SW(0) = (RS_SH(3) * RT_SH(3)) %s (RS_SH(2) * RT_SH(2));\n", op );
+ printf("GPR_SW(destreg,2) = LO_SW(2) = (RS_SH(5) * RT_SH(5)) %s (RS_SH(4) * RT_SH(4));\n", op );
+ printf("GPR_SW(destreg,3) = HI_SW(2) = (RS_SH(7) * RT_SH(7)) %s (RS_SH(6) * RT_SH(6));\n", op );
+ }
+ break;
+
+ case PSHIFT:
+ {
+ char* name = name_for_data_len( insn );
+ char* letter = letter_for_data_len( insn );
+ char* bits = bits_for_data_len( insn );
+ char* shift = (insn->flags & RIGHT) ? ">>" : "<<";
+ char* sign = (insn->flags & ARITHMETIC) ? "S" : "U";
+
+ printf("int shift_by = op1 & (%s-1);\n", bits );
+ printf("int i;\n");
+ printf("for(i=0;i<%sS_IN_MMI_REGS;i++)\n", name );
+ printf(" GPR_%s%s(destreg,i) = ", sign, letter );
+ if ( insn->flags & ARITHMETIC )
+ printf("SIGNEXTEND( ");
+ printf("(RT_%s%s(i) %s shift_by)", sign, letter, shift );
+ if ( insn->flags & ARITHMETIC )
+ printf(", (%s-shift_by) )", bits );
+ printf(";\n");
+ break;
+ }
+
+ case PSLLVW:
+ printf("GPR_UD(destreg,0) = RT_UW(0) << (RS_UB(0) & 0x1F);\n");
+ printf("GPR_UD(destreg,1) = RT_UW(2) << (RS_UB(8) & 0x1F);\n");
+ break;
+
+ case PSRLVW:
+ printf("GPR_UD(destreg,0) = RT_UW(0) >> (RS_UB(0) & 0x1F);\n");
+ printf("GPR_UD(destreg,1) = RT_UW(2) >> (RS_UB(8) & 0x1F);\n");
+ break;
+
+ case PSRAVW:
+ printf("GPR_SD(destreg,0) = SIGNEXTEND( (RT_SW (0) >> (RS_UB(0) & 0x1F)), 32-(RS_UB(0) & 0x1F) );\n");
+ printf("GPR_SD(destreg,1) = SIGNEXTEND( (RT_SW (2) >> (RS_UB(8) & 0x1F)), 32-(RS_UB(8) & 0x1F) );\n");
+ break;
+
+ case POP:
+ {
+ char* op1;
+ char* op2;
+
+ if ( GET_OP_FROM_INSN(insn) == POP_AND )
+ {
+ op1 = "&";
+ op2 = "";
+ }
+ else if ( GET_OP_FROM_INSN(insn) == POP_OR )
+ {
+ op1 = "|";
+ op2 = "";
+ }
+ else if ( GET_OP_FROM_INSN(insn) == POP_NOR )
+ {
+ op1 = "|";
+ op2 = "~";
+ }
+ else if ( GET_OP_FROM_INSN(insn) == POP_XOR )
+ {
+ op1 = "^";
+ op2 = "";
+ }
+
+ printf("int i;\n");
+ printf("for(i=0;i<WORDS_IN_MMI_REGS;i++)\n");
+ printf(" GPR_UW(destreg,i) = %s(RS_UW(i) %s RT_UW(i));\n", op2, op1 );
+ break;
+ }
+
+ case PCMP:
+ {
+ char* name = name_for_data_len( insn );
+ char* letter = letter_for_data_len( insn );
+ char* maximum = umax_for_data_len( insn );
+ char* op = (insn->flags & GT) ? ">" : "==";
+
+ printf("int i;\n");
+ printf("for(i=0;i<%sS_IN_MMI_REGS;i++)\n", name );
+ printf(" {\n");
+ printf(" if (RS_S%s(i) %s RT_S%s(i)) GPR_S%s(destreg,i) = %s;\n",
+ letter, op, letter, letter, maximum );
+ printf(" else GPR_S%s(destreg,i) = 0;\n", letter );
+ printf(" }\n");
+ break;
+ }
+
+ case PMAXMIN:
+ {
+ char* name = name_for_data_len( insn );
+ char* letter = letter_for_data_len( insn );
+ char* op = (insn->flags & GT) ? ">" : "<";
+
+ printf("int i;\n");
+ printf("for(i=0;i<%sS_IN_MMI_REGS;i++)\n", name );
+ printf(" {\n");
+ printf(" if (RS_S%s(i) %s RT_S%s(i)) GPR_S%s(destreg,i) = RS_S%s(i);\n",
+ letter, op, letter, letter, letter );
+ printf(" else GPR_S%s(destreg,i) = RT_S%s(i);\n", letter, letter );
+ printf(" }\n");
+ break;
+ }
+
+ case PABS:
+ {
+ char* name = name_for_data_len( insn );
+ char* letter = letter_for_data_len( insn );
+
+ printf("int i;\n");
+ printf("for(i=0;i<%sS_IN_MMI_REGS;i++)\n", name );
+ printf(" {\n");
+ printf(" if (RT_S%s(i) < 0)\n", letter );
+ printf(" GPR_S%s(destreg,i) = -RT_S%s(i);\n", letter, letter );
+ printf(" else\n");
+ printf(" GPR_S%s(destreg,i) = RT_S%s(i);\n", letter, letter );
+ printf(" }\n");
+ break;
+ }
+
+ case PCPYH:
+ printf("GPR_UH(destreg,7) = GPR_UH(destreg,6) = GPR_UH(destreg,5) = GPR_UH(destreg,4) = RT_UH(4);\n");
+ printf("GPR_UH(destreg,3) = GPR_UH(destreg,2) = GPR_UH(destreg,1) = GPR_UH(destreg,0) = RT_UH(0);\n");
+ break;
+
+ case PCPYLD:
+ printf("GPR_UD(destreg,0) = RT_UD(0);\n");
+ printf("GPR_UD(destreg,1) = RS_UD(0);\n");
+ break;
+
+ case PCPYUD:
+ printf("GPR_UD(destreg,0) = RS_UD(1);\n");
+ printf("GPR_UD(destreg,1) = RT_UD(1);\n");
+ break;
+
+ case PEXCH:
+ printf("GPR_UH(destreg,0) = RT_UH(0);\n");
+ printf("GPR_UH(destreg,1) = RT_UH(2);\n");
+ printf("GPR_UH(destreg,2) = RT_UH(1);\n");
+ printf("GPR_UH(destreg,3) = RT_UH(3);\n");
+ printf("GPR_UH(destreg,4) = RT_UH(4);\n");
+ printf("GPR_UH(destreg,5) = RT_UH(6);\n");
+ printf("GPR_UH(destreg,6) = RT_UH(5);\n");
+ printf("GPR_UH(destreg,7) = RT_UH(7);\n");
+ break;
+
+ case PEXCW:
+ printf("GPR_UW(destreg,0) = RT_UW(0);\n");
+ printf("GPR_UW(destreg,1) = RT_UW(2);\n");
+ printf("GPR_UW(destreg,2) = RT_UW(1);\n");
+ printf("GPR_UW(destreg,3) = RT_UW(3);\n");
+ break;
+
+ case PEXOH:
+ printf("GPR_UH(destreg,0) = RT_UH(2);\n");
+ printf("GPR_UH(destreg,1) = RT_UH(1);\n");
+ printf("GPR_UH(destreg,2) = RT_UH(0);\n");
+ printf("GPR_UH(destreg,3) = RT_UH(3);\n");
+ printf("GPR_UH(destreg,4) = RT_UH(6);\n");
+ printf("GPR_UH(destreg,5) = RT_UH(5);\n");
+ printf("GPR_UH(destreg,6) = RT_UH(4);\n");
+ printf("GPR_UH(destreg,7) = RT_UH(7);\n");
+ break;
+
+ case PEXOW:
+ printf("GPR_UW(destreg,0) = RT_UW(2);\n");
+ printf("GPR_UW(destreg,1) = RT_UW(1);\n");
+ printf("GPR_UW(destreg,2) = RT_UW(0);\n");
+ printf("GPR_UW(destreg,3) = RT_UW(3);\n");
+ break;
+
+ case PEXTLB:
+ printf("GPR_UB(destreg,0) = RT_UB(0);\n");
+ printf("GPR_UB(destreg,1) = RS_UB(0);\n");
+ printf("GPR_UB(destreg,2) = RT_UB(1);\n");
+ printf("GPR_UB(destreg,3) = RS_UB(1);\n");
+ printf("GPR_UB(destreg,4) = RT_UB(2);\n");
+ printf("GPR_UB(destreg,5) = RS_UB(2);\n");
+ printf("GPR_UB(destreg,6) = RT_UB(3);\n");
+ printf("GPR_UB(destreg,7) = RS_UB(3);\n");
+ printf("GPR_UB(destreg,8) = RT_UB(4);\n");
+ printf("GPR_UB(destreg,9) = RS_UB(4);\n");
+ printf("GPR_UB(destreg,10) = RT_UB(5);\n");
+ printf("GPR_UB(destreg,11) = RS_UB(5);\n");
+ printf("GPR_UB(destreg,12) = RT_UB(6);\n");
+ printf("GPR_UB(destreg,13) = RS_UB(6);\n");
+ printf("GPR_UB(destreg,14) = RT_UB(7);\n");
+ printf("GPR_UB(destreg,15) = RS_UB(7);\n");
+ break;
+
+ case PEXTLH:
+ printf("GPR_UH(destreg,0) = RT_UH(0);\n");
+ printf("GPR_UH(destreg,1) = RS_UH(0);\n");
+ printf("GPR_UH(destreg,2) = RT_UH(1);\n");
+ printf("GPR_UH(destreg,3) = RS_UH(1);\n");
+ printf("GPR_UH(destreg,4) = RT_UH(2);\n");
+ printf("GPR_UH(destreg,5) = RS_UH(2);\n");
+ printf("GPR_UH(destreg,6) = RT_UH(3);\n");
+ printf("GPR_UH(destreg,7) = RS_UH(3);\n");
+ break;
+
+ case PEXTLW:
+ printf("GPR_UW(destreg,0) = RT_UW(0);\n");
+ printf("GPR_UW(destreg,1) = RS_UW(0);\n");
+ printf("GPR_UW(destreg,2) = RT_UW(1);\n");
+ printf("GPR_UW(destreg,3) = RS_UW(1);\n");
+ break;
+
+ case PEXTUB:
+ printf("GPR_UB(destreg,0) = RT_UB(8);\n");
+ printf("GPR_UB(destreg,1) = RS_UB(8);\n");
+ printf("GPR_UB(destreg,2) = RT_UB(9);\n");
+ printf("GPR_UB(destreg,3) = RS_UB(9);\n");
+ printf("GPR_UB(destreg,4) = RT_UB(10);\n");
+ printf("GPR_UB(destreg,5) = RS_UB(10);\n");
+ printf("GPR_UB(destreg,6) = RT_UB(11);\n");
+ printf("GPR_UB(destreg,7) = RS_UB(11);\n");
+ printf("GPR_UB(destreg,8) = RT_UB(12);\n");
+ printf("GPR_UB(destreg,9) = RS_UB(12);\n");
+ printf("GPR_UB(destreg,10) = RT_UB(13);\n");
+ printf("GPR_UB(destreg,11) = RS_UB(13);\n");
+ printf("GPR_UB(destreg,12) = RT_UB(14);\n");
+ printf("GPR_UB(destreg,13) = RS_UB(14);\n");
+ printf("GPR_UB(destreg,14) = RT_UB(15);\n");
+ printf("GPR_UB(destreg,15) = RS_UB(15);\n");
+ break;
+
+ case PEXTUH:
+ printf("GPR_UH(destreg,0) = RT_UH(4);\n");
+ printf("GPR_UH(destreg,1) = RS_UH(4);\n");
+ printf("GPR_UH(destreg,2) = RT_UH(5);\n");
+ printf("GPR_UH(destreg,3) = RS_UH(5);\n");
+ printf("GPR_UH(destreg,4) = RT_UH(6);\n");
+ printf("GPR_UH(destreg,5) = RS_UH(6);\n");
+ printf("GPR_UH(destreg,6) = RT_UH(7);\n");
+ printf("GPR_UH(destreg,7) = RS_UH(7);\n");
+ break;
+
+ case PEXTUW:
+ printf("GPR_UW(destreg,0) = RT_UW(2);\n");
+ printf("GPR_UW(destreg,1) = RS_UW(2);\n");
+ printf("GPR_UW(destreg,2) = RT_UW(3);\n");
+ printf("GPR_UW(destreg,3) = RS_UW(3);\n");
+ break;
+
+ case PPACB:
+ printf("GPR_UB(destreg,0) = RT_UB(0);\n");
+ printf("GPR_UB(destreg,1) = RT_UB(2);\n");
+ printf("GPR_UB(destreg,2) = RT_UB(4);\n");
+ printf("GPR_UB(destreg,3) = RT_UB(6);\n");
+ printf("GPR_UB(destreg,4) = RT_UB(8);\n");
+ printf("GPR_UB(destreg,5) = RT_UB(10);\n");
+ printf("GPR_UB(destreg,6) = RT_UB(12);\n");
+ printf("GPR_UB(destreg,7) = RT_UB(14);\n");
+ printf("GPR_UB(destreg,8) = RS_UB(0);\n");
+ printf("GPR_UB(destreg,9) = RS_UB(2);\n");
+ printf("GPR_UB(destreg,10) = RS_UB(4);\n");
+ printf("GPR_UB(destreg,11) = RS_UB(6);\n");
+ printf("GPR_UB(destreg,12) = RS_UB(8);\n");
+ printf("GPR_UB(destreg,13) = RS_UB(10);\n");
+ printf("GPR_UB(destreg,14) = RS_UB(12);\n");
+ printf("GPR_UB(destreg,15) = RS_UB(14);\n");
+ break;
+
+ case PPACH:
+ printf("GPR_UH(destreg,0) = RT_UH(0);\n");
+ printf("GPR_UH(destreg,1) = RT_UH(2);\n");
+ printf("GPR_UH(destreg,2) = RT_UH(4);\n");
+ printf("GPR_UH(destreg,3) = RT_UH(6);\n");
+ printf("GPR_UH(destreg,4) = RS_UH(0);\n");
+ printf("GPR_UH(destreg,5) = RS_UH(2);\n");
+ printf("GPR_UH(destreg,6) = RS_UH(4);\n");
+ printf("GPR_UH(destreg,7) = RS_UH(6);\n");
+ break;
+
+ case PPACW:
+ printf("GPR_UW(destreg,0) = RT_UW(0);\n");
+ printf("GPR_UW(destreg,1) = RT_UW(2);\n");
+ printf("GPR_UW(destreg,2) = RS_UW(0);\n");
+ printf("GPR_UW(destreg,3) = RS_UW(2);\n");
+ break;
+
+ case PREVH:
+ printf("GPR_UH(destreg,0) = RT_UH(3);\n");
+ printf("GPR_UH(destreg,1) = RT_UH(2);\n");
+ printf("GPR_UH(destreg,2) = RT_UH(1);\n");
+ printf("GPR_UH(destreg,3) = RT_UH(0);\n");
+ printf("GPR_UH(destreg,4) = RT_UH(7);\n");
+ printf("GPR_UH(destreg,5) = RT_UH(6);\n");
+ printf("GPR_UH(destreg,6) = RT_UH(5);\n");
+ printf("GPR_UH(destreg,7) = RT_UH(4);\n");
+ break;
+
+ case PROT3W:
+ printf("GPR_UW(destreg,0) = RT_UW(0);\n");
+ printf("GPR_UW(destreg,1) = RT_UW(3);\n");
+ printf("GPR_UW(destreg,2) = RT_UW(1);\n");
+ printf("GPR_UW(destreg,3) = RT_UW(2);\n");
+ break;
+
+ case PINTH:
+ printf("GPR_UH(destreg,0) = RT_UH(0);\n");
+ printf("GPR_UH(destreg,1) = RS_UH(4);\n");
+ printf("GPR_UH(destreg,2) = RT_UH(1);\n");
+ printf("GPR_UH(destreg,3) = RS_UH(5);\n");
+ printf("GPR_UH(destreg,4) = RT_UH(2);\n");
+ printf("GPR_UH(destreg,5) = RS_UH(6);\n");
+ printf("GPR_UH(destreg,6) = RT_UH(3);\n");
+ printf("GPR_UH(destreg,7) = RS_UH(7);\n");
+ break;
+
+ case PINTOH:
+ printf("GPR_UH(destreg,0) = RT_UH(0);\n");
+ printf("GPR_UH(destreg,1) = RS_UH(0);\n");
+ printf("GPR_UH(destreg,2) = RT_UH(2);\n");
+ printf("GPR_UH(destreg,3) = RS_UH(2);\n");
+ printf("GPR_UH(destreg,4) = RT_UH(4);\n");
+ printf("GPR_UH(destreg,5) = RS_UH(4);\n");
+ printf("GPR_UH(destreg,6) = RT_UH(6);\n");
+ printf("GPR_UH(destreg,7) = RS_UH(6);\n");
+ break;
+
+ case PMXX: /* Parallel move HI or LO / TO or FROM */
+ {
+ if ( (insn->flags & (HI|FROM)) == (HI|FROM) )
+ {
+ printf("GPR_SD(destreg,0) = HI;\n");
+ printf("GPR_SD(destreg,1) = HI1;\n");
+ }
+ else if ( (insn->flags & (LO|FROM)) == (LO|FROM) )
+ {
+ printf("GPR_SD(destreg,0) = LO;\n");
+ printf("GPR_SD(destreg,1) = LO1;\n");
+ }
+ else if ( (insn->flags & (HI|TO)) == (HI|TO) )
+ {
+ printf("HI = RS_SD(0);\n");
+ printf("HI1 = RS_SD(1);\n");
+ }
+ else if ( (insn->flags & (LO|TO)) == (LO|TO) )
+ {
+ printf("LO = RS_SD(0);\n");
+ printf("LO1 = RS_SD(1);\n");
+ }
+ break;
+ }
+
+ case PMTHL:
+ printf("LO_UW(0) = RS_UW(0);\n");
+ printf("HI_UW(0) = RS_UW(1);\n");
+ printf("LO_UW(2) = RS_UW(2);\n");
+ printf("HI_UW(2) = RS_UW(3);\n");
+ break;
+
+ case PMFHL:
+ printf("if (op1 == 0)\n");
+ printf(" {\n");
+ printf(" GPR_UW(destreg,0) = LO_UW(0);\n");
+ printf(" GPR_UW(destreg,1) = HI_UW(0);\n");
+ printf(" GPR_UW(destreg,2) = LO_UW(2);\n");
+ printf(" GPR_UW(destreg,3) = HI_UW(2);\n");
+ printf(" }\n");
+ printf("else if (op1 == 1)\n");
+ printf(" {\n");
+ printf(" GPR_UW(destreg,0) = LO_UW(1);\n");
+ printf(" GPR_UW(destreg,1) = HI_UW(1);\n");
+ printf(" GPR_UW(destreg,2) = LO_UW(3);\n");
+ printf(" GPR_UW(destreg,3) = HI_UW(3);\n");
+ printf(" }\n");
+ printf("else if (op1 == 2)\n");
+ printf(" {\n");
+ printf(" unsigned long long t = ((uword64)HI_UW(0) << 32) | (uword64)LO_UW(0);\n");
+ printf(" if ( t > 0x7FFFFFFF )\n");
+ printf(" GPR_SD(destreg,0) = 0x7FFFFFFF;\n");
+ printf(" else if ( t > (uword64)0xFFFFFFFF80000000LL )\n");
+ printf(" GPR_SD(destreg,0) = (uword64)0xFFFFFFFF80000000LL;\n");
+ printf(" else\n");
+ printf(" GPR_SD(destreg,0) = SIGNEXTEND(t,32);\n");
+ printf(" }\n");
+ printf("else if (op1 == 3)\n");
+ printf(" {\n");
+ printf(" GPR_UH(destreg,0) = LO_UH(0);\n");
+ printf(" GPR_UH(destreg,1) = LO_UH(2);\n");
+ printf(" GPR_UH(destreg,2) = HI_UH(0);\n");
+ printf(" GPR_UH(destreg,3) = HI_UH(2);\n");
+ printf(" GPR_UH(destreg,4) = LO_UH(4);\n");
+ printf(" GPR_UH(destreg,5) = LO_UH(6);\n");
+ printf(" GPR_UH(destreg,6) = HI_UH(4);\n");
+ printf(" GPR_UH(destreg,7) = HI_UH(6);\n");
+ printf(" }\n");
+ printf("else if (op1 == 4)\n");
+ printf(" {\n");
+ printf(" if (LO_UW(0) > 0x00007FFF)\n");
+ printf(" GPR_UH(destreg,0) = 0x7FFF;\n");
+ printf(" else if (LO_UW(0) >= 0xFFFF8000)\n");
+ printf(" GPR_UH(destreg,0) = 0x8000;\n");
+ printf(" else\n");
+ printf(" GPR_UH(destreg,0) = LO_UH(0);\n");
+
+ printf(" if (LO_UW(1) > 0x00007FFF)\n");
+ printf(" GPR_UH(destreg,1) = 0x7FFF;\n");
+ printf(" else if (LO_UW(1) >= 0xFFFF8000)\n");
+ printf(" GPR_UH(destreg,1) = 0x8000;\n");
+ printf(" else\n");
+ printf(" GPR_UH(destreg,1) = LO_UH(2);\n");
+
+ printf(" if (HI_UW(0) > 0x00007FFF)\n");
+ printf(" GPR_UH(destreg,0) = 0x7FFF;\n");
+ printf(" else if (HI_UW(0) >= 0xFFFF8000)\n");
+ printf(" GPR_UH(destreg,0) = 0x8000;\n");
+ printf(" else\n");
+ printf(" GPR_UH(destreg,0) = HI_UH(0);\n");
+
+ printf(" if (HI_UW(1) > 0x00007FFF)\n");
+ printf(" GPR_UH(destreg,1) = 0x7FFF;\n");
+ printf(" else if (HI_UW(1) >= 0xFFFF8000)\n");
+ printf(" GPR_UH(destreg,1) = 0x8000;\n");
+ printf(" else\n");
+ printf(" GPR_UH(destreg,1) = HI_UH(2);\n");
+
+ printf(" if (LO_UW(2) > 0x00007FFF)\n");
+ printf(" GPR_UH(destreg,4) = 0x7FFF;\n");
+ printf(" else if (LO_UW(2) >= 0xFFFF8000)\n");
+ printf(" GPR_UH(destreg,4) = 0x8000;\n");
+ printf(" else\n");
+ printf(" GPR_UH(destreg,4) = LO_UH(4);\n");
+
+ printf(" if (LO_UW(3) > 0x00007FFF)\n");
+ printf(" GPR_UH(destreg,5) = 0x7FFF;\n");
+ printf(" else if (LO_UW(3) >= 0xFFFF8000)\n");
+ printf(" GPR_UH(destreg,5) = 0x8000;\n");
+ printf(" else\n");
+ printf(" GPR_UH(destreg,5) = LO_UH(6);\n");
+
+ printf(" if (HI_UW(2) > 0x00007FFF)\n");
+ printf(" GPR_UH(destreg,6) = 0x7FFF;\n");
+ printf(" else if (HI_UW(2) >= 0xFFFF8000)\n");
+ printf(" GPR_UH(destreg,6) = 0x8000;\n");
+ printf(" else\n");
+ printf(" GPR_UH(destreg,6) = HI_UH(4);\n");
+
+ printf(" if (HI_UW(3) > 0x00007FFF)\n");
+ printf(" GPR_UH(destreg,7) = 0x7FFF;\n");
+ printf(" else if (HI_UW(3) >= 0xFFFF8000)\n");
+ printf(" GPR_UH(destreg,7) = 0x8000;\n");
+ printf(" else\n");
+ printf(" GPR_UH(destreg,7) = HI_UH(6);\n");
+
+ printf(" }\n");
+ break;
+
+ case PLZCW:
+ printf("unsigned long value;\n");
+ printf("int test;\n");
+ printf("int count;\n");
+ printf("int i;\n");
+
+ printf("value = RS_UW(0);\n");
+ printf("count = 0;\n");
+ printf("test = !!(value & (1 << 31));\n");
+ printf("for(i=30; i>=0 && (test == !!(value & (1 << i))); i--)\n");
+ printf(" count++;\n");
+ printf("GPR_UW(destreg,0) = count;\n");
+
+ printf("value = RS_UW(1);\n");
+ printf("count = 0;\n");
+ printf("test = !!(value & (1 << 31));\n");
+ printf("for(i=30; i>=0 && (test == !!(value & (1 << i))); i--)\n");
+ printf(" count++;\n");
+ printf("GPR_UW(destreg,1) = count;\n");
+ break;
+
+ case PEXT5:
+ printf("int i;\n");
+ printf("for(i=0;i<WORDS_IN_MMI_REGS;i++)\n");
+ printf(" {\n");
+ printf(" int x = RT_UW(i);\n");
+ printf(" GPR_UW(destreg,i) = ((x & (1 << 15)) << (24 - 15)) \n");
+ printf(" | ((x & (31 << 10)) << (19 - 10)) \n");
+ printf(" | ((x & (31 << 5)) << (11 - 5)) \n");
+ printf(" | ((x & (31 << 0)) << (3 - 0)); \n");
+ printf(" }\n");
+ break;
+
+ case PPAC5:
+ printf("int i;\n");
+ printf("for(i=0;i<WORDS_IN_MMI_REGS;i++)\n");
+ printf(" {\n");
+ printf(" int x = RT_UW(i);\n");
+ printf(" GPR_UW(destreg,i) = ((x & (1 << 24)) >> (24 - 15)) \n");
+ printf(" | ((x & (31 << 19)) >> (19 - 10)) \n");
+ printf(" | ((x & (31 << 11)) >> (11 - 5)) \n");
+ printf(" | ((x & (31 << 3)) >> (3 - 0)); \n");
+ printf(" }\n");
+ break;
+/* end-sanitize-r5900 */
+
+ case NYI:
+ fprintf(stderr,"Warning: Unimplemented opcode: %s\n",insn->name) ;
+
+ printf("SignalException(ReservedInstruction,instruction);\n");
+ break;
+
default:
fprintf(stderr,"Unrecognised opcode type %d\n",insn->type) ;
exit(6) ;
static const struct architectures available_architectures[] = {
{"4100",ARCH_VR4100}, /* NEC MIPS VR4100 */
+ /* start-sanitize-r5900 */
+ {"5900",ARCH_R5900},
+ /* end-sanitize-r5900 */
{0, 0} /* terminator */
};
/*---------------------------------------------------------------------------*/
/*> EOF gencode.c <*/
+
+
+
+
+
+
+
projects / deliverable / binutils-gdb.git / blobdiff