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#include "compiler/Scheduler.h"
#include "compiler/PCode.h"
#include "compiler/PCodeInfo.h"
// https://stuff.mit.edu/afs/sipb/contrib/doc/specs/ic/cpu/powerpc/mpc601.pdf
// https://www.nxp.com/docs/en/user-guide/MPC601UMAD.pdf
typedef enum Stage {
IU, // Integer Unit
FD, // FP Decode
FPM, // FP Multiply
FPA, // FP Add
FWA, // FP Arithmetic Writeback
BPU, // Branch Processing Unit
NumStages,
Serialize, // special form for instructions that use IU but are serialised
Unsupported // instructions not supported by this processor
} Stage;
static struct {
// the instruction currently in this pipeline stage
PCode *instr;
// how many cycles are left for this instruction to finish
int remaining;
} pipeline[NumStages];
static struct {
// the initial stage for this instruction
Stage stage;
// the total amount of cycles required by this instruction
char latency;
// how long it takes to finish each stage
char cycles[4];
} instruction_timing[OPCODE_MAX] = {
BPU, 0, 0, 0, 0, 1, // PC_B
BPU, 0, 0, 0, 0, 1, // PC_BL
BPU, 0, 0, 0, 0, 1, // PC_BC
BPU, 0, 0, 0, 0, 1, // PC_BCLR
BPU, 0, 0, 0, 0, 1, // PC_BCCTR
BPU, 0, 0, 0, 0, 1, // PC_BT
BPU, 0, 0, 0, 0, 1, // PC_BTLR
BPU, 0, 0, 0, 0, 1, // PC_BTCTR
BPU, 0, 0, 0, 0, 1, // PC_BF
BPU, 0, 0, 0, 0, 1, // PC_BFLR
BPU, 0, 0, 0, 0, 1, // PC_BFCTR
BPU, 0, 0, 0, 0, 1, // PC_BDNZ
BPU, 0, 0, 0, 0, 1, // PC_BDNZT
BPU, 0, 0, 0, 0, 1, // PC_BDNZF
BPU, 0, 0, 0, 0, 1, // PC_BDZ
BPU, 0, 0, 0, 0, 1, // PC_BDZT
BPU, 0, 0, 0, 0, 1, // PC_BDZF
BPU, 0, 0, 0, 0, 1, // PC_BLR
BPU, 0, 0, 0, 0, 1, // PC_BCTR
BPU, 0, 0, 0, 0, 1, // PC_BCTRL
BPU, 0, 0, 0, 0, 1, // PC_BLRL
IU, 2, 1, 0, 0, 0, // PC_LBZ
IU, 2, 1, 0, 0, 0, // PC_LBZU
IU, 2, 1, 0, 0, 0, // PC_LBZX
IU, 2, 1, 0, 0, 0, // PC_LBZUX
IU, 2, 1, 0, 0, 0, // PC_LHZ
IU, 2, 1, 0, 0, 0, // PC_LHZU
IU, 2, 1, 0, 0, 0, // PC_LHZX
IU, 2, 1, 0, 0, 0, // PC_LHZUX
IU, 2, 1, 0, 0, 0, // PC_LHA
IU, 2, 1, 0, 0, 0, // PC_LHAU
IU, 2, 1, 0, 0, 0, // PC_LHAX
IU, 2, 1, 0, 0, 0, // PC_LHAUX
IU, 2, 1, 0, 0, 0, // PC_LHBRX
IU, 2, 1, 0, 0, 0, // PC_LWZ
IU, 2, 1, 0, 0, 0, // PC_LWZU
IU, 2, 1, 0, 0, 0, // PC_LWZX
IU, 2, 1, 0, 0, 0, // PC_LWZUX
IU, 2, 1, 0, 0, 0, // PC_LWBRX
IU, 1, 1, 0, 0, 0, // PC_LMW
IU, 1, 1, 0, 0, 0, // PC_STB
IU, 1, 1, 0, 0, 0, // PC_STBU
IU, 1, 1, 0, 0, 0, // PC_STBX
IU, 1, 1, 0, 0, 0, // PC_STBUX
IU, 1, 1, 0, 0, 0, // PC_STH
IU, 1, 1, 0, 0, 0, // PC_STHU
IU, 1, 1, 0, 0, 0, // PC_STHX
IU, 1, 1, 0, 0, 0, // PC_STHUX
IU, 1, 1, 0, 0, 0, // PC_STHBRX
IU, 1, 1, 0, 0, 0, // PC_STW
IU, 1, 1, 0, 0, 0, // PC_STWU
IU, 1, 1, 0, 0, 0, // PC_STWX
IU, 1, 1, 0, 0, 0, // PC_STWUX
IU, 1, 1, 0, 0, 0, // PC_STWBRX
IU, 1, 1, 0, 0, 0, // PC_STMW
IU, 2, 1, 0, 0, 0, // PC_DCBF
IU, 2, 1, 0, 0, 0, // PC_DCBST
IU, 2, 1, 0, 0, 0, // PC_DCBT
IU, 2, 1, 0, 0, 0, // PC_DCBTST
IU, 2, 1, 0, 0, 0, // PC_DCBZ
IU, 1, 1, 0, 0, 0, // PC_ADD
IU, 1, 1, 0, 0, 0, // PC_ADDC
IU, 1, 1, 0, 0, 0, // PC_ADDE
IU, 1, 1, 0, 0, 0, // PC_ADDI
IU, 1, 1, 0, 0, 0, // PC_ADDIC
IU, 1, 1, 0, 0, 0, // PC_ADDICR
IU, 1, 1, 0, 0, 0, // PC_ADDIS
IU, 1, 1, 0, 0, 0, // PC_ADDME
IU, 1, 1, 0, 0, 0, // PC_ADDZE
IU, 36, 36, 0, 0, 0, // PC_DIVW
IU, 36, 36, 0, 0, 0, // PC_DIVWU
IU, 5, 5, 0, 0, 0, // PC_MULHW
IU, 5, 5, 0, 0, 0, // PC_MULHWU
IU, 5, 5, 0, 0, 0, // PC_MULLI
IU, 5, 5, 0, 0, 0, // PC_MULLW
IU, 1, 1, 0, 0, 0, // PC_NEG
IU, 1, 1, 0, 0, 0, // PC_SUBF
IU, 1, 1, 0, 0, 0, // PC_SUBFC
IU, 1, 1, 0, 0, 0, // PC_SUBFE
IU, 1, 1, 0, 0, 0, // PC_SUBFIC
IU, 1, 1, 0, 0, 0, // PC_SUBFME
IU, 1, 1, 0, 0, 0, // PC_SUBFZE
IU, 3, 1, 0, 0, 0, // PC_CMPI
IU, 3, 1, 0, 0, 0, // PC_CMP
IU, 3, 1, 0, 0, 0, // PC_CMPLI
IU, 3, 1, 0, 0, 0, // PC_CMPL
IU, 1, 1, 0, 0, 0, // PC_ANDI
IU, 1, 1, 0, 0, 0, // PC_ANDIS
IU, 1, 1, 0, 0, 0, // PC_ORI
IU, 1, 1, 0, 0, 0, // PC_ORIS
IU, 1, 1, 0, 0, 0, // PC_XORI
IU, 1, 1, 0, 0, 0, // PC_XORIS
IU, 1, 1, 0, 0, 0, // PC_AND
IU, 1, 1, 0, 0, 0, // PC_OR
IU, 1, 1, 0, 0, 0, // PC_XOR
IU, 1, 1, 0, 0, 0, // PC_NAND
IU, 1, 1, 0, 0, 0, // PC_NOR
IU, 1, 1, 0, 0, 0, // PC_EQV
IU, 1, 1, 0, 0, 0, // PC_ANDC
IU, 1, 1, 0, 0, 0, // PC_ORC
IU, 1, 1, 0, 0, 0, // PC_EXTSB
IU, 1, 1, 0, 0, 0, // PC_EXTSH
IU, 1, 1, 0, 0, 0, // PC_CNTLZW
IU, 1, 1, 0, 0, 0, // PC_RLWINM
IU, 1, 1, 0, 0, 0, // PC_RLWNM
IU, 1, 1, 0, 0, 0, // PC_RLWIMI
IU, 1, 1, 0, 0, 0, // PC_SLW
IU, 1, 1, 0, 0, 0, // PC_SRW
IU, 1, 1, 0, 0, 0, // PC_SRAWI
IU, 1, 1, 0, 0, 0, // PC_SRAW
IU, 1, 1, 0, 0, 0, // PC_CRAND
IU, 1, 1, 0, 0, 0, // PC_CRANDC
IU, 1, 1, 0, 0, 0, // PC_CREQV
IU, 1, 1, 0, 0, 0, // PC_CRNAND
IU, 1, 1, 0, 0, 0, // PC_CRNOR
IU, 1, 1, 0, 0, 0, // PC_CROR
IU, 1, 1, 0, 0, 0, // PC_CRORC
IU, 1, 1, 0, 0, 0, // PC_CRXOR
IU, 1, 1, 0, 0, 0, // PC_MCRF
IU, 4, 1, 0, 0, 0, // PC_MTXER
IU, 4, 1, 0, 0, 0, // PC_MTCTR
IU, 4, 1, 0, 0, 0, // PC_MTLR
IU, 2, 1, 0, 0, 0, // PC_MTCRF
IU, 1, 0, 0, 0, 0, // PC_MTMSR
IU, 1, 0, 0, 0, 0, // PC_MTSPR
IU, 1, 0, 0, 0, 0, // PC_MFMSR
IU, 1, 0, 0, 0, 0, // PC_MFSPR
IU, 1, 1, 0, 0, 0, // PC_MFXER
IU, 1, 1, 0, 0, 0, // PC_MFCTR
IU, 1, 1, 0, 0, 0, // PC_MFLR
IU, 1, 1, 0, 0, 0, // PC_MFCR
FD, 4, 1, 1, 1, 1, // PC_MFFS
FD, 4, 1, 1, 1, 1, // PC_MTFSF
Serialize, 1, 1, 0, 0, 1, // PC_EIEIO
Serialize, 1, 1, 0, 0, 1, // PC_ISYNC
Serialize, 1, 1, 0, 0, 1, // PC_SYNC
Serialize, 0, 0, 0, 0, 1, // PC_RFI
IU, 1, 1, 0, 0, 0, // PC_LI
IU, 1, 1, 0, 0, 0, // PC_LIS
IU, 1, 1, 0, 0, 0, // PC_MR
IU, 1, 1, 0, 0, 0, // PC_NOP
IU, 1, 1, 0, 0, 0, // PC_NOT
IU, 3, 1, 0, 0, 0, // PC_LFS
IU, 3, 1, 0, 0, 0, // PC_LFSU
IU, 3, 1, 0, 0, 0, // PC_LFSX
IU, 3, 1, 0, 0, 0, // PC_LFSUX
IU, 3, 1, 0, 0, 0, // PC_LFD
IU, 3, 1, 0, 0, 0, // PC_LFDU
IU, 3, 1, 0, 0, 0, // PC_LFDX
IU, 3, 1, 0, 0, 0, // PC_LFDUX
IU, 1, 1, 0, 0, 0, // PC_STFS
IU, 1, 1, 0, 0, 0, // PC_STFSU
IU, 1, 1, 0, 0, 0, // PC_STFSX
IU, 1, 1, 0, 0, 0, // PC_STFSUX
IU, 1, 1, 0, 0, 0, // PC_STFD
IU, 1, 1, 0, 0, 0, // PC_STFDU
IU, 1, 1, 0, 0, 0, // PC_STFDX
IU, 1, 1, 0, 0, 0, // PC_STFDUX
FD, 4, 1, 1, 1, 1, // PC_FMR
FD, 4, 1, 1, 1, 1, // PC_FABS
FD, 4, 1, 1, 1, 1, // PC_FNEG
FD, 4, 1, 1, 1, 1, // PC_FNABS
FD, 4, 1, 1, 1, 1, // PC_FADD
FD, 4, 1, 1, 1, 1, // PC_FADDS
FD, 4, 1, 1, 1, 1, // PC_FSUB
FD, 4, 1, 1, 1, 1, // PC_FSUBS
FD, 5, 1, 1, 2, 1, // PC_FMUL
FD, 4, 1, 1, 1, 1, // PC_FMULS
FD, 31, 1, 1, 28, 1, // PC_FDIV
FD, 17, 1, 1, 14, 1, // PC_FDIVS
FD, 5, 1, 1, 2, 1, // PC_FMADD
FD, 4, 1, 1, 1, 1, // PC_FMADDS
FD, 5, 1, 1, 2, 1, // PC_FMSUB
FD, 4, 1, 1, 1, 1, // PC_FMSUBS
FD, 5, 1, 1, 2, 1, // PC_FNMADD
FD, 4, 1, 1, 1, 1, // PC_FNMADDS
FD, 5, 1, 1, 2, 1, // PC_FNMSUB
FD, 4, 1, 1, 1, 1, // PC_FNMSUBS
FD, 4, 1, 1, 1, 1, // PC_FRES
FD, 4, 1, 1, 1, 1, // PC_FRSQRTE
FD, 4, 1, 1, 1, 1, // PC_FSEL
FD, 4, 1, 1, 1, 1, // PC_FRSP
FD, 4, 1, 1, 1, 1, // PC_FCTIW
FD, 4, 1, 1, 1, 1, // PC_FCTIWZ
FD, 6, 1, 1, 1, 1, // PC_FCMPU
FD, 6, 1, 1, 1, 1, // PC_FCMPO
IU, 0, 0, 0, 0, 0, // PC_LWARX
IU, 0, 0, 0, 0, 0, // PC_LSWI
IU, 0, 0, 0, 0, 0, // PC_LSWX
IU, 0, 0, 0, 0, 0, // PC_STFIWX
IU, 0, 0, 0, 0, 0, // PC_STSWI
IU, 0, 0, 0, 0, 0, // PC_STSWX
IU, 0, 0, 0, 0, 0, // PC_STWCX
IU, 0, 0, 0, 0, 0, // PC_ECIWX
IU, 0, 0, 0, 0, 0, // PC_ECOWX
IU, 0, 0, 0, 0, 0, // PC_DCBI
IU, 0, 0, 0, 0, 0, // PC_ICBI
IU, 0, 0, 0, 0, 0, // PC_MCRFS
IU, 0, 0, 0, 0, 0, // PC_MCRXR
IU, 0, 0, 0, 0, 0, // PC_MFTB
IU, 0, 0, 0, 0, 0, // PC_MFSR
IU, 0, 0, 0, 0, 0, // PC_MTSR
IU, 0, 0, 0, 0, 0, // PC_MFSRIN
IU, 0, 0, 0, 0, 0, // PC_MTSRIN
IU, 0, 0, 0, 0, 0, // PC_MTFSB0
IU, 0, 0, 0, 0, 0, // PC_MTFSB1
IU, 0, 0, 0, 0, 0, // PC_MTFSFI
Serialize, 0, 0, 0, 0, 0, // PC_SC
IU, 0, 0, 0, 0, 0, // PC_FSQRT
IU, 0, 0, 0, 0, 0, // PC_FSQRTS
IU, 0, 0, 0, 0, 0, // PC_TLBIA
IU, 0, 0, 0, 0, 0, // PC_TLBIE
IU, 0, 0, 0, 0, 0, // PC_TLBLD
IU, 0, 0, 0, 0, 0, // PC_TLBLI
IU, 0, 0, 0, 0, 0, // PC_TLBSYNC
Serialize, 0, 0, 0, 0, 0, // PC_TW
Serialize, 0, 0, 0, 0, 0, // PC_TRAP
Serialize, 0, 0, 0, 0, 0, // PC_TWI
Serialize, 0, 0, 0, 0, 0, // PC_OPWORD
IU, 0, 0, 0, 0, 0, // PC_MFROM
IU, 0, 0, 0, 0, 0, // PC_DSA
IU, 0, 0, 0, 0, 0, // PC_ESA
IU, 0, 0, 0, 0, 0, // PC_DCCCI
IU, 0, 0, 0, 0, 0, // PC_DCREAD
IU, 0, 0, 0, 0, 0, // PC_ICBT
IU, 0, 0, 0, 0, 0, // PC_ICCCI
IU, 0, 0, 0, 0, 0, // PC_ICREAD
IU, 0, 0, 0, 0, 0, // PC_RFCI
IU, 0, 0, 0, 0, 0, // PC_TLBRE
IU, 0, 0, 0, 0, 0, // PC_TLBSX
IU, 0, 0, 0, 0, 0, // PC_TLBWE
IU, 0, 0, 0, 0, 0, // PC_WRTEE
IU, 0, 0, 0, 0, 0, // PC_WRTEEI
IU, 0, 0, 0, 0, 0, // PC_MFDCR
IU, 0, 0, 0, 0, 0, // PC_MTDCR
Unsupported, 0, 0, 0, 0, 0, // PC_DCBA
Unsupported, 0, 0, 0, 0, 0, // PC_DSS
Unsupported, 0, 0, 0, 0, 0, // PC_DSSALL
Unsupported, 0, 0, 0, 0, 0, // PC_DST
Unsupported, 0, 0, 0, 0, 0, // PC_DSTT
Unsupported, 0, 0, 0, 0, 0, // PC_DSTST
Unsupported, 0, 0, 0, 0, 0, // PC_DSTSTT
Unsupported, 0, 0, 0, 0, 0, // PC_LVEBX
Unsupported, 0, 0, 0, 0, 0, // PC_LVEHX
Unsupported, 0, 0, 0, 0, 0, // PC_LVEWX
Unsupported, 0, 0, 0, 0, 0, // PC_LVSL
Unsupported, 0, 0, 0, 0, 0, // PC_LVSR
Unsupported, 0, 0, 0, 0, 0, // PC_LVX
Unsupported, 0, 0, 0, 0, 0, // PC_LVXL
Unsupported, 0, 0, 0, 0, 0, // PC_STVEBX
Unsupported, 0, 0, 0, 0, 0, // PC_STVEHX
Unsupported, 0, 0, 0, 0, 0, // PC_STVEWX
Unsupported, 0, 0, 0, 0, 0, // PC_STVX
Unsupported, 0, 0, 0, 0, 0, // PC_STVXL
Unsupported, 0, 0, 0, 0, 0, // PC_MFVSCR
Unsupported, 0, 0, 0, 0, 0, // PC_MTVSCR
Unsupported, 0, 0, 0, 0, 0, // PC_VADDCUW
Unsupported, 0, 0, 0, 0, 0, // PC_VADDFP
Unsupported, 0, 0, 0, 0, 0, // PC_VADDSBS
Unsupported, 0, 0, 0, 0, 0, // PC_VADDSHS
Unsupported, 0, 0, 0, 0, 0, // PC_VADDSWS
Unsupported, 0, 0, 0, 0, 0, // PC_VADDUBM
Unsupported, 0, 0, 0, 0, 0, // PC_VADDUBS
Unsupported, 0, 0, 0, 0, 0, // PC_VADDUHM
Unsupported, 0, 0, 0, 0, 0, // PC_VADDUHS
Unsupported, 0, 0, 0, 0, 0, // PC_VADDUWM
Unsupported, 0, 0, 0, 0, 0, // PC_VADDUWS
Unsupported, 0, 0, 0, 0, 0, // PC_VAND
Unsupported, 0, 0, 0, 0, 0, // PC_VANDC
Unsupported, 0, 0, 0, 0, 0, // PC_VAVGSB
Unsupported, 0, 0, 0, 0, 0, // PC_VAVGSH
Unsupported, 0, 0, 0, 0, 0, // PC_VAVGSW
Unsupported, 0, 0, 0, 0, 0, // PC_VAVGUB
Unsupported, 0, 0, 0, 0, 0, // PC_VAVGUH
Unsupported, 0, 0, 0, 0, 0, // PC_VAVGUW
Unsupported, 0, 0, 0, 0, 0, // PC_VCFSX
Unsupported, 0, 0, 0, 0, 0, // PC_VCFUX
Unsupported, 0, 0, 0, 0, 0, // PC_VCMPBFP
Unsupported, 0, 0, 0, 0, 0, // PC_VCMPEQFP
Unsupported, 0, 0, 0, 0, 0, // PC_VCMPEQUB
Unsupported, 0, 0, 0, 0, 0, // PC_VCMPEQUH
Unsupported, 0, 0, 0, 0, 0, // PC_VCMPEQUW
Unsupported, 0, 0, 0, 0, 0, // PC_VCMPGEFP
Unsupported, 0, 0, 0, 0, 0, // PC_VCMPGTFP
Unsupported, 0, 0, 0, 0, 0, // PC_VCMPGTSB
Unsupported, 0, 0, 0, 0, 0, // PC_VCMPGTSH
Unsupported, 0, 0, 0, 0, 0, // PC_VCMPGTSW
Unsupported, 0, 0, 0, 0, 0, // PC_VCMPGTUB
Unsupported, 0, 0, 0, 0, 0, // PC_VCMPGTUH
Unsupported, 0, 0, 0, 0, 0, // PC_VCMPGTUW
Unsupported, 0, 0, 0, 0, 0, // PC_VCTSXS
Unsupported, 0, 0, 0, 0, 0, // PC_VCTUXS
Unsupported, 0, 0, 0, 0, 0, // PC_VEXPTEFP
Unsupported, 0, 0, 0, 0, 0, // PC_VLOGEFP
Unsupported, 0, 0, 0, 0, 0, // PC_VMAXFP
Unsupported, 0, 0, 0, 0, 0, // PC_VMAXSB
Unsupported, 0, 0, 0, 0, 0, // PC_VMAXSH
Unsupported, 0, 0, 0, 0, 0, // PC_VMAXSW
Unsupported, 0, 0, 0, 0, 0, // PC_VMAXUB
Unsupported, 0, 0, 0, 0, 0, // PC_VMAXUH
Unsupported, 0, 0, 0, 0, 0, // PC_VMAXUW
Unsupported, 0, 0, 0, 0, 0, // PC_VMINFP
Unsupported, 0, 0, 0, 0, 0, // PC_VMINSB
Unsupported, 0, 0, 0, 0, 0, // PC_VMINSH
Unsupported, 0, 0, 0, 0, 0, // PC_VMINSW
Unsupported, 0, 0, 0, 0, 0, // PC_VMINUB
Unsupported, 0, 0, 0, 0, 0, // PC_VMINUH
Unsupported, 0, 0, 0, 0, 0, // PC_VMINUW
Unsupported, 0, 0, 0, 0, 0, // PC_VMRGHB
Unsupported, 0, 0, 0, 0, 0, // PC_VMRGHH
Unsupported, 0, 0, 0, 0, 0, // PC_VMRGHW
Unsupported, 0, 0, 0, 0, 0, // PC_VMRGLB
Unsupported, 0, 0, 0, 0, 0, // PC_VMRGLH
Unsupported, 0, 0, 0, 0, 0, // PC_VMRGLW
Unsupported, 0, 0, 0, 0, 0, // PC_VMULESB
Unsupported, 0, 0, 0, 0, 0, // PC_VMULESH
Unsupported, 0, 0, 0, 0, 0, // PC_VMULEUB
Unsupported, 0, 0, 0, 0, 0, // PC_VMULEUH
Unsupported, 0, 0, 0, 0, 0, // PC_VMULOSB
Unsupported, 0, 0, 0, 0, 0, // PC_VMULOSH
Unsupported, 0, 0, 0, 0, 0, // PC_VMULOUB
Unsupported, 0, 0, 0, 0, 0, // PC_VMULOUH
Unsupported, 0, 0, 0, 0, 0, // PC_VNOR
Unsupported, 0, 0, 0, 0, 0, // PC_VOR
Unsupported, 0, 0, 0, 0, 0, // PC_VPKPX
Unsupported, 0, 0, 0, 0, 0, // PC_VPKSHSS
Unsupported, 0, 0, 0, 0, 0, // PC_VPKSHUS
Unsupported, 0, 0, 0, 0, 0, // PC_VPKSWSS
Unsupported, 0, 0, 0, 0, 0, // PC_VPKSWUS
Unsupported, 0, 0, 0, 0, 0, // PC_VPKUHUM
Unsupported, 0, 0, 0, 0, 0, // PC_VPKUHUS
Unsupported, 0, 0, 0, 0, 0, // PC_VPKUWUM
Unsupported, 0, 0, 0, 0, 0, // PC_VPKUWUS
Unsupported, 0, 0, 0, 0, 0, // PC_VREFP
Unsupported, 0, 0, 0, 0, 0, // PC_VRFIM
Unsupported, 0, 0, 0, 0, 0, // PC_VRFIN
Unsupported, 0, 0, 0, 0, 0, // PC_VRFIP
Unsupported, 0, 0, 0, 0, 0, // PC_VRFIZ
Unsupported, 0, 0, 0, 0, 0, // PC_VRLB
Unsupported, 0, 0, 0, 0, 0, // PC_VRLH
Unsupported, 0, 0, 0, 0, 0, // PC_VRLW
Unsupported, 0, 0, 0, 0, 0, // PC_VRSQRTEFP
Unsupported, 0, 0, 0, 0, 0, // PC_VSL
Unsupported, 0, 0, 0, 0, 0, // PC_VSLB
Unsupported, 0, 0, 0, 0, 0, // PC_VSLH
Unsupported, 0, 0, 0, 0, 0, // PC_VSLO
Unsupported, 0, 0, 0, 0, 0, // PC_VSLW
Unsupported, 0, 0, 0, 0, 0, // PC_VSPLTB
Unsupported, 0, 0, 0, 0, 0, // PC_VSPLTH
Unsupported, 0, 0, 0, 0, 0, // PC_VSPLTW
Unsupported, 0, 0, 0, 0, 0, // PC_VSPLTISB
Unsupported, 0, 0, 0, 0, 0, // PC_VSPLTISH
Unsupported, 0, 0, 0, 0, 0, // PC_VSPLTISW
Unsupported, 0, 0, 0, 0, 0, // PC_VSR
Unsupported, 0, 0, 0, 0, 0, // PC_VSRAB
Unsupported, 0, 0, 0, 0, 0, // PC_VSRAH
Unsupported, 0, 0, 0, 0, 0, // PC_VSRAW
Unsupported, 0, 0, 0, 0, 0, // PC_VSRB
Unsupported, 0, 0, 0, 0, 0, // PC_VSRH
Unsupported, 0, 0, 0, 0, 0, // PC_VSRO
Unsupported, 0, 0, 0, 0, 0, // PC_VSRW
Unsupported, 0, 0, 0, 0, 0, // PC_VSUBCUW
Unsupported, 0, 0, 0, 0, 0, // PC_VSUBFP
Unsupported, 0, 0, 0, 0, 0, // PC_VSUBSBS
Unsupported, 0, 0, 0, 0, 0, // PC_VSUBSHS
Unsupported, 0, 0, 0, 0, 0, // PC_VSUBSWS
Unsupported, 0, 0, 0, 0, 0, // PC_VSUBUBM
Unsupported, 0, 0, 0, 0, 0, // PC_VSUBUBS
Unsupported, 0, 0, 0, 0, 0, // PC_VSUBUHM
Unsupported, 0, 0, 0, 0, 0, // PC_VSUBUHS
Unsupported, 0, 0, 0, 0, 0, // PC_VSUBUWM
Unsupported, 0, 0, 0, 0, 0, // PC_VSUBUWS
Unsupported, 0, 0, 0, 0, 0, // PC_VSUMSWS
Unsupported, 0, 0, 0, 0, 0, // PC_VSUFPMSWS
Unsupported, 0, 0, 0, 0, 0, // PC_VSUFWASBS
Unsupported, 0, 0, 0, 0, 0, // PC_VSUFWASHS
Unsupported, 0, 0, 0, 0, 0, // PC_VSUFWAUBS
Unsupported, 0, 0, 0, 0, 0, // PC_VUPKHPX
Unsupported, 0, 0, 0, 0, 0, // PC_VUPKHSB
Unsupported, 0, 0, 0, 0, 0, // PC_VUPKHSH
Unsupported, 0, 0, 0, 0, 0, // PC_VUPKLPX
Unsupported, 0, 0, 0, 0, 0, // PC_VUPKLSB
Unsupported, 0, 0, 0, 0, 0, // PC_VUPKLSH
Unsupported, 0, 0, 0, 0, 0, // PC_VXOR
Unsupported, 0, 0, 0, 0, 0, // PC_VMADDFP
Unsupported, 0, 0, 0, 0, 0, // PC_VMHADDSHS
Unsupported, 0, 0, 0, 0, 0, // PC_VMHRADDSHS
Unsupported, 0, 0, 0, 0, 0, // PC_VMLADDUHM
Unsupported, 0, 0, 0, 0, 0, // PC_VMSUMMBM
Unsupported, 0, 0, 0, 0, 0, // PC_VMSUMSHM
Unsupported, 0, 0, 0, 0, 0, // PC_VMSUMSHS
Unsupported, 0, 0, 0, 0, 0, // PC_VMSUMUBM
Unsupported, 0, 0, 0, 0, 0, // PC_VMSUMUHM
Unsupported, 0, 0, 0, 0, 0, // PC_VMSUMUHS
Unsupported, 0, 0, 0, 0, 0, // PC_VNMSUBFP
Unsupported, 0, 0, 0, 0, 0, // PC_VPERM
Unsupported, 0, 0, 0, 0, 0, // PC_VSEL
Unsupported, 0, 0, 0, 0, 0, // PC_VSLDOI
Unsupported, 0, 0, 0, 0, 0, // PC_VMR
Unsupported, 0, 0, 0, 0, 0, // PC_VMRP
IU, 0, 0, 0, 0, 0, // PC_SLE
IU, 0, 0, 0, 0, 0, // PC_SLEQ
IU, 0, 0, 0, 0, 0, // PC_SLIQ
IU, 0, 0, 0, 0, 0, // PC_SLLIQ
IU, 0, 0, 0, 0, 0, // PC_SLLQ
IU, 0, 0, 0, 0, 0, // PC_SLQ
IU, 0, 0, 0, 0, 0, // PC_SRAIQ
IU, 0, 0, 0, 0, 0, // PC_SRAQ
IU, 0, 0, 0, 0, 0, // PC_SRE
IU, 0, 0, 0, 0, 0, // PC_SREA
IU, 0, 0, 0, 0, 0, // PC_SREQ
IU, 0, 0, 0, 0, 0, // PC_SRIQ
IU, 0, 0, 0, 0, 0, // PC_SRLIQ
IU, 0, 0, 0, 0, 0, // PC_SRLQ
IU, 0, 0, 0, 0, 0, // PC_SRQ
IU, 0, 0, 0, 0, 0, // PC_MASKG
IU, 0, 0, 0, 0, 0, // PC_MASKIR
IU, 0, 0, 0, 0, 0, // PC_LSCBX
IU, 0, 0, 0, 0, 0, // PC_DIV
IU, 0, 0, 0, 0, 0, // PC_DIVS
IU, 0, 0, 0, 0, 0, // PC_DOZ
IU, 0, 0, 0, 0, 0, // PC_MUL
IU, 0, 0, 0, 0, 0, // PC_NABS
IU, 0, 0, 0, 0, 0, // PC_ABS
IU, 0, 0, 0, 0, 0, // PC_CLCS
IU, 0, 0, 0, 0, 0, // PC_DOZI
IU, 0, 0, 0, 0, 0, // PC_RLMI
IU, 0, 0, 0, 0, 0, // PC_RRIB
};
static void advance(int stageCount, int oldStage, int newStage) {
PCode *instr = pipeline[oldStage].instr;
int cycles = instruction_timing[instr->op].cycles[newStage - stageCount];
pipeline[newStage].instr = instr;
pipeline[newStage].remaining = cycles;
pipeline[oldStage].instr = NULL;
}
static void complete_instruction(int stage) {
pipeline[stage].instr = NULL;
}
static int latency(PCode *instr) {
int cycles = instruction_timing[instr->op].latency;
if (PCODE_FLAG_SET_F(instr) & fRecordBit)
cycles += 2;
if (instr->op == PC_LMW || instr->op == PC_STMW)
cycles += instr->argCount - 2;
return cycles;
}
static void initialize(void) {
int stage;
for (stage = 0; stage < NumStages; stage++)
pipeline[stage].instr = NULL;
}
static int can_issue(PCode *instr) {
int stage = instruction_timing[instr->op].stage;
if (stage == Serialize)
stage = IU;
if (pipeline[stage].instr)
return 0;
return 1;
}
static void issue(PCode *instr) {
int stage = instruction_timing[instr->op].stage;
int cycles = instruction_timing[instr->op].cycles[IU];
if (stage == Serialize)
stage = IU;
pipeline[stage].instr = instr;
pipeline[stage].remaining = cycles;
}
static void advance_clock(void) {
int stage;
for (stage = 0; stage < NumStages; stage++) {
if (pipeline[stage].instr && pipeline[stage].remaining)
--pipeline[stage].remaining;
}
if (pipeline[IU].instr && pipeline[IU].remaining == 0)
complete_instruction(IU);
if (pipeline[FWA].instr && pipeline[FWA].remaining == 0)
complete_instruction(FWA);
if (pipeline[BPU].instr && pipeline[BPU].remaining == 0)
complete_instruction(BPU);
if (pipeline[FPA].instr && pipeline[FPA].remaining == 0 && !pipeline[FWA].instr)
advance(1, FPA, FWA);
if (pipeline[FPM].instr && pipeline[FPM].remaining == 0 && !pipeline[FPA].instr)
advance(1, FPM, FPA);
if (pipeline[FD].instr && pipeline[FD].remaining == 0 && !pipeline[FPM].instr)
advance(1, FD, FPM);
}
static int serializes(PCode *instr) {
return instruction_timing[instr->op].stage == Serialize;
}
MachineInfo machine601 = {
2,
0,
0,
&latency,
&initialize,
&can_issue,
&issue,
&advance_clock,
&serializes,
&default_uses_vpermute_unit
};
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