diff options
| -rw-r--r-- | target/mips/translate.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/target/mips/translate.c b/target/mips/translate.c index 3a0bdd5..32d1d2d 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -1927,6 +1927,167 @@ enum { OPC_MXU_Q8MACSU = 0x01, }; +/* + * Overview of the TX79-specific instruction set + * ============================================= + * + * The R5900 and the C790 have 128-bit wide GPRs, where the upper 64 bits + * are only used by the specific quadword (128-bit) LQ/SQ load/store + * instructions and certain multimedia instructions (MMIs). These MMIs + * configure the 128-bit data path as two 64-bit, four 32-bit, eight 16-bit + * or sixteen 8-bit paths. + * + * Reference: + * + * The Toshiba TX System RISC TX79 Core Architecture manual, + * https://wiki.qemu.org/File:C790.pdf + * + * Three-Operand Multiply and Multiply-Add (4 instructions) + * -------------------------------------------------------- + * MADD [rd,] rs, rt Multiply/Add + * MADDU [rd,] rs, rt Multiply/Add Unsigned + * MULT [rd,] rs, rt Multiply (3-operand) + * MULTU [rd,] rs, rt Multiply Unsigned (3-operand) + * + * Multiply Instructions for Pipeline 1 (10 instructions) + * ------------------------------------------------------ + * MULT1 [rd,] rs, rt Multiply Pipeline 1 + * MULTU1 [rd,] rs, rt Multiply Unsigned Pipeline 1 + * DIV1 rs, rt Divide Pipeline 1 + * DIVU1 rs, rt Divide Unsigned Pipeline 1 + * MADD1 [rd,] rs, rt Multiply-Add Pipeline 1 + * MADDU1 [rd,] rs, rt Multiply-Add Unsigned Pipeline 1 + * MFHI1 rd Move From HI1 Register + * MFLO1 rd Move From LO1 Register + * MTHI1 rs Move To HI1 Register + * MTLO1 rs Move To LO1 Register + * + * Arithmetic (19 instructions) + * ---------------------------- + * PADDB rd, rs, rt Parallel Add Byte + * PSUBB rd, rs, rt Parallel Subtract Byte + * PADDH rd, rs, rt Parallel Add Halfword + * PSUBH rd, rs, rt Parallel Subtract Halfword + * PADDW rd, rs, rt Parallel Add Word + * PSUBW rd, rs, rt Parallel Subtract Word + * PADSBH rd, rs, rt Parallel Add/Subtract Halfword + * PADDSB rd, rs, rt Parallel Add with Signed Saturation Byte + * PSUBSB rd, rs, rt Parallel Subtract with Signed Saturation Byte + * PADDSH rd, rs, rt Parallel Add with Signed Saturation Halfword + * PSUBSH rd, rs, rt Parallel Subtract with Signed Saturation Halfword + * PADDSW rd, rs, rt Parallel Add with Signed Saturation Word + * PSUBSW rd, rs, rt Parallel Subtract with Signed Saturation Word + * PADDUB rd, rs, rt Parallel Add with Unsigned saturation Byte + * PSUBUB rd, rs, rt Parallel Subtract with Unsigned saturation Byte + * PADDUH rd, rs, rt Parallel Add with Unsigned saturation Halfword + * PSUBUH rd, rs, rt Parallel Subtract with Unsigned saturation Halfword + * PADDUW rd, rs, rt Parallel Add with Unsigned saturation Word + * PSUBUW rd, rs, rt Parallel Subtract with Unsigned saturation Word + * + * Min/Max (4 instructions) + * ------------------------ + * PMAXH rd, rs, rt Parallel Maximum Halfword + * PMINH rd, rs, rt Parallel Minimum Halfword + * PMAXW rd, rs, rt Parallel Maximum Word + * PMINW rd, rs, rt Parallel Minimum Word + * + * Absolute (2 instructions) + * ------------------------- + * PABSH rd, rt Parallel Absolute Halfword + * PABSW rd, rt Parallel Absolute Word + * + * Logical (4 instructions) + * ------------------------ + * PAND rd, rs, rt Parallel AND + * POR rd, rs, rt Parallel OR + * PXOR rd, rs, rt Parallel XOR + * PNOR rd, rs, rt Parallel NOR + * + * Shift (9 instructions) + * ---------------------- + * PSLLH rd, rt, sa Parallel Shift Left Logical Halfword + * PSRLH rd, rt, sa Parallel Shift Right Logical Halfword + * PSRAH rd, rt, sa Parallel Shift Right Arithmetic Halfword + * PSLLW rd, rt, sa Parallel Shift Left Logical Word + * PSRLW rd, rt, sa Parallel Shift Right Logical Word + * PSRAW rd, rt, sa Parallel Shift Right Arithmetic Word + * PSLLVW rd, rt, rs Parallel Shift Left Logical Variable Word + * PSRLVW rd, rt, rs Parallel Shift Right Logical Variable Word + * PSRAVW rd, rt, rs Parallel Shift Right Arithmetic Variable Word + * + * Compare (6 instructions) + * ------------------------ + * PCGTB rd, rs, rt Parallel Compare for Greater Than Byte + * PCEQB rd, rs, rt Parallel Compare for Equal Byte + * PCGTH rd, rs, rt Parallel Compare for Greater Than Halfword + * PCEQH rd, rs, rt Parallel Compare for Equal Halfword + * PCGTW rd, rs, rt Parallel Compare for Greater Than Word + * PCEQW rd, rs, rt Parallel Compare for Equal Word + * + * LZC (1 instruction) + * ------------------- + * PLZCW rd, rs Parallel Leading Zero or One Count Word + * + * Quadword Load and Store (2 instructions) + * ---------------------------------------- + * LQ rt, offset(base) Load Quadword + * SQ rt, offset(base) Store Quadword + * + * Multiply and Divide (19 instructions) + * ------------------------------------- + * PMULTW rd, rs, rt Parallel Multiply Word + * PMULTUW rd, rs, rt Parallel Multiply Unsigned Word + * PDIVW rs, rt Parallel Divide Word + * PDIVUW rs, rt Parallel Divide Unsigned Word + * PMADDW rd, rs, rt Parallel Multiply-Add Word + * PMADDUW rd, rs, rt Parallel Multiply-Add Unsigned Word + * PMSUBW rd, rs, rt Parallel Multiply-Subtract Word + * PMULTH rd, rs, rt Parallel Multiply Halfword + * PMADDH rd, rs, rt Parallel Multiply-Add Halfword + * PMSUBH rd, rs, rt Parallel Multiply-Subtract Halfword + * PHMADH rd, rs, rt Parallel Horizontal Multiply-Add Halfword + * PHMSBH rd, rs, rt Parallel Horizontal Multiply-Subtract Halfword + * PDIVBW rs, rt Parallel Divide Broadcast Word + * PMFHI rd Parallel Move From HI Register + * PMFLO rd Parallel Move From LO Register + * PMTHI rs Parallel Move To HI Register + * PMTLO rs Parallel Move To LO Register + * PMFHL rd Parallel Move From HI/LO Register + * PMTHL rs Parallel Move To HI/LO Register + * + * Pack/Extend (11 instructions) + * ----------------------------- + * PPAC5 rd, rt Parallel Pack to 5 bits + * PPACB rd, rs, rt Parallel Pack to Byte + * PPACH rd, rs, rt Parallel Pack to Halfword + * PPACW rd, rs, rt Parallel Pack to Word + * PEXT5 rd, rt Parallel Extend Upper from 5 bits + * PEXTUB rd, rs, rt Parallel Extend Upper from Byte + * PEXTLB rd, rs, rt Parallel Extend Lower from Byte + * PEXTUH rd, rs, rt Parallel Extend Upper from Halfword + * PEXTLH rd, rs, rt Parallel Extend Lower from Halfword + * PEXTUW rd, rs, rt Parallel Extend Upper from Word + * PEXTLW rd, rs, rt Parallel Extend Lower from Word + * + * Others (16 instructions) + * ------------------------ + * PCPYH rd, rt Parallel Copy Halfword + * PCPYLD rd, rs, rt Parallel Copy Lower Doubleword + * PCPYUD rd, rs, rt Parallel Copy Upper Doubleword + * PREVH rd, rt Parallel Reverse Halfword + * PINTH rd, rs, rt Parallel Interleave Halfword + * PINTEH rd, rs, rt Parallel Interleave Even Halfword + * PEXEH rd, rt Parallel Exchange Even Halfword + * PEXCH rd, rt Parallel Exchange Center Halfword + * PEXEW rd, rt Parallel Exchange Even Word + * PEXCW rd, rt Parallel Exchange Center Word + * QFSRV rd, rs, rt Quadword Funnel Shift Right Variable + * MFSA rd Move from Shift Amount Register + * MTSA rs Move to Shift Amount Register + * MTSAB rs, immediate Move Byte Count to Shift Amount Register + * MTSAH rs, immediate Move Halfword Count to Shift Amount Register + * PROT3W rd, rt Parallel Rotate 3 Words + */ /* global register indices */ static TCGv cpu_gpr[32], cpu_PC; |