diff options
Diffstat (limited to 'compiler_and_linker/unsorted/MachineSimulation821.c')
| -rw-r--r-- | compiler_and_linker/unsorted/MachineSimulation821.c | 615 |
1 files changed, 0 insertions, 615 deletions
diff --git a/compiler_and_linker/unsorted/MachineSimulation821.c b/compiler_and_linker/unsorted/MachineSimulation821.c deleted file mode 100644 index bbf0509..0000000 --- a/compiler_and_linker/unsorted/MachineSimulation821.c +++ /dev/null @@ -1,615 +0,0 @@ -#include "compiler/Scheduler.h" -#include "compiler/PCode.h" -#include "compiler/PCodeInfo.h" - -// https://www.nxp.com/docs/en/user-guide/MPC821UM.pdf - -typedef enum Stage { - BranchUnit, - Stage1, - Stage2, - LSU1, - LSU2, - CRUnit, - NumStages, - Stage7 -} 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]; - -enum { - MaxEntries = 6 -}; - -static struct { - // how many entries remain unused in the queue - unsigned int free; - - // how many entries are currently used in the queue - unsigned int used; - - // the index of the next instruction that will be retired - unsigned int nextToRetire; - - // the index of the next free slot that will be used when an instruction is dispatched - unsigned int nextFreeSlot; - - // circular array of entries in the completion queue - struct { - PCode *instr; - int completed; - } entries[MaxEntries]; -} completionbuffers; - -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[3]; - - // does this instruction serialise? - char serializes; -} instruction_timing[OPCODE_MAX] = { - BranchUnit, 0, 0, 0, 0, 0, // PC_B - BranchUnit, 0, 0, 0, 0, 0, // PC_BL - BranchUnit, 0, 0, 0, 0, 0, // PC_BC - BranchUnit, 0, 0, 0, 0, 0, // PC_BCLR - BranchUnit, 0, 0, 0, 0, 0, // PC_BCCTR - BranchUnit, 0, 0, 0, 0, 0, // PC_BT - BranchUnit, 0, 0, 0, 0, 0, // PC_BTLR - BranchUnit, 0, 0, 0, 0, 0, // PC_BTCTR - BranchUnit, 0, 0, 0, 0, 0, // PC_BF - BranchUnit, 0, 0, 0, 0, 0, // PC_BFLR - BranchUnit, 0, 0, 0, 0, 0, // PC_BFCTR - BranchUnit, 0, 0, 0, 0, 0, // PC_BDNZ - BranchUnit, 0, 0, 0, 0, 0, // PC_BDNZT - BranchUnit, 0, 0, 0, 0, 0, // PC_BDNZF - BranchUnit, 0, 0, 0, 0, 0, // PC_BDZ - BranchUnit, 0, 0, 0, 0, 0, // PC_BDZT - BranchUnit, 0, 0, 0, 0, 0, // PC_BDZF - BranchUnit, 0, 0, 0, 0, 0, // PC_BLR - BranchUnit, 0, 0, 0, 0, 0, // PC_BCTR - BranchUnit, 0, 0, 0, 0, 0, // PC_BCTRL - BranchUnit, 0, 0, 0, 0, 0, // PC_BLRL - BranchUnit, 0, 0, 0, 0, 0, // PC_LBZ - LSU1, 2, 1, 1, 0, 0, // PC_LBZU - LSU1, 2, 1, 1, 0, 0, // PC_LBZX - LSU1, 2, 1, 1, 0, 0, // PC_LBZUX - LSU1, 2, 1, 1, 0, 0, // PC_LHZ - LSU1, 2, 1, 1, 0, 0, // PC_LHZU - LSU1, 2, 1, 1, 0, 0, // PC_LHZX - LSU1, 2, 1, 1, 0, 0, // PC_LHZUX - LSU1, 2, 1, 1, 0, 0, // PC_LHA - LSU1, 2, 1, 1, 0, 0, // PC_LHAU - LSU1, 2, 1, 1, 0, 0, // PC_LHAX - LSU1, 2, 1, 1, 0, 0, // PC_LHAUX - LSU1, 2, 1, 1, 0, 0, // PC_LHBRX - LSU1, 2, 1, 1, 0, 0, // PC_LWZ - LSU1, 2, 1, 1, 0, 0, // PC_LWZU - LSU1, 2, 1, 1, 0, 0, // PC_LWZX - LSU1, 2, 1, 1, 0, 0, // PC_LWZUX - LSU1, 2, 1, 1, 0, 0, // PC_LWBRX - LSU1, 2, 1, 1, 0, 0, // PC_LMW - LSU1, 2, 1, 1, 0, 0, // PC_STB - LSU1, 2, 1, 1, 0, 0, // PC_STBU - LSU1, 2, 1, 1, 0, 0, // PC_STBX - LSU1, 2, 1, 1, 0, 0, // PC_STBUX - LSU1, 2, 1, 1, 0, 0, // PC_STH - LSU1, 2, 1, 1, 0, 0, // PC_STHU - LSU1, 2, 1, 1, 0, 0, // PC_STHX - LSU1, 2, 1, 1, 0, 0, // PC_STHUX - LSU1, 2, 1, 1, 0, 0, // PC_STHBRX - LSU1, 2, 1, 1, 0, 0, // PC_STW - LSU1, 2, 1, 1, 0, 0, // PC_STWU - LSU1, 2, 1, 1, 0, 0, // PC_STWX - LSU1, 2, 1, 1, 0, 0, // PC_STWUX - LSU1, 2, 1, 1, 0, 0, // PC_STWBRX - LSU1, 2, 1, 1, 0, 0, // PC_STMW - LSU1, 2, 1, 1, 0, 0, // PC_DCBF - LSU1, 2, 1, 1, 0, 0, // PC_DCBST - LSU1, 2, 1, 1, 0, 0, // PC_DCBT - LSU1, 2, 1, 1, 0, 0, // PC_DCBTST - LSU1, 2, 1, 1, 0, 0, // PC_DCBZ - LSU1, 2, 1, 1, 0, 0, // PC_ADD - Stage1, 1, 1, 0, 0, 0, // PC_ADDC - Stage1, 1, 1, 0, 0, 0, // PC_ADDE - Stage1, 1, 1, 0, 0, 0, // PC_ADDI - Stage1, 1, 1, 0, 0, 0, // PC_ADDIC - Stage1, 1, 1, 0, 0, 0, // PC_ADDICR - Stage1, 1, 1, 0, 0, 0, // PC_ADDIS - Stage1, 1, 1, 0, 0, 0, // PC_ADDME - Stage1, 1, 1, 0, 0, 0, // PC_ADDZE - Stage1, 1, 1, 0, 0, 0, // PC_DIVW - Stage1, 37, 37, 0, 0, 0, // PC_DIVWU - Stage1, 37, 37, 0, 0, 0, // PC_MULHW - Stage1, 5, 5, 0, 0, 0, // PC_MULHWU - Stage1, 5, 5, 0, 0, 0, // PC_MULLI - Stage1, 3, 3, 0, 0, 0, // PC_MULLW - Stage1, 5, 5, 0, 0, 0, // PC_NEG - Stage1, 1, 1, 0, 0, 0, // PC_SUBF - Stage1, 1, 1, 0, 0, 0, // PC_SUBFC - Stage1, 1, 1, 0, 0, 0, // PC_SUBFE - Stage1, 1, 1, 0, 0, 0, // PC_SUBFIC - Stage1, 1, 1, 0, 0, 0, // PC_SUBFME - Stage1, 1, 1, 0, 0, 0, // PC_SUBFZE - Stage1, 1, 1, 0, 0, 0, // PC_CMPI - Stage1, 3, 1, 0, 0, 0, // PC_CMP - Stage1, 3, 1, 0, 0, 0, // PC_CMPLI - Stage1, 3, 1, 0, 0, 0, // PC_CMPL - Stage1, 3, 1, 0, 0, 0, // PC_ANDI - Stage1, 1, 1, 0, 0, 0, // PC_ANDIS - Stage1, 1, 1, 0, 0, 0, // PC_ORI - Stage1, 1, 1, 0, 0, 0, // PC_ORIS - Stage1, 1, 1, 0, 0, 0, // PC_XORI - Stage1, 1, 1, 0, 0, 0, // PC_XORIS - Stage1, 1, 1, 0, 0, 0, // PC_AND - Stage1, 1, 1, 0, 0, 0, // PC_OR - Stage1, 1, 1, 0, 0, 0, // PC_XOR - Stage1, 1, 1, 0, 0, 0, // PC_NAND - Stage1, 1, 1, 0, 0, 0, // PC_NOR - Stage1, 1, 1, 0, 0, 0, // PC_EQV - Stage1, 1, 1, 0, 0, 0, // PC_ANDC - Stage1, 1, 1, 0, 0, 0, // PC_ORC - Stage1, 1, 1, 0, 0, 0, // PC_EXTSB - Stage1, 1, 1, 0, 0, 0, // PC_EXTSH - Stage1, 1, 1, 0, 0, 0, // PC_CNTLZW - Stage1, 1, 1, 0, 0, 0, // PC_RLWINM - Stage1, 1, 1, 0, 0, 0, // PC_RLWNM - Stage1, 1, 1, 0, 0, 0, // PC_RLWIMI - Stage1, 1, 1, 0, 0, 0, // PC_SLW - Stage1, 1, 1, 0, 0, 0, // PC_SRW - Stage1, 1, 1, 0, 0, 0, // PC_SRAWI - Stage1, 1, 1, 0, 0, 0, // PC_SRAW - Stage1, 1, 1, 0, 0, 0, // PC_CRAND - CRUnit, 1, 1, 0, 0, 0, // PC_CRANDC - CRUnit, 1, 1, 0, 0, 0, // PC_CREQV - CRUnit, 1, 1, 0, 0, 0, // PC_CRNAND - CRUnit, 1, 1, 0, 0, 0, // PC_CRNOR - CRUnit, 1, 1, 0, 0, 0, // PC_CROR - CRUnit, 1, 1, 0, 0, 0, // PC_CRORC - CRUnit, 1, 1, 0, 0, 0, // PC_CRXOR - CRUnit, 1, 1, 0, 0, 0, // PC_MCRF - CRUnit, 1, 1, 0, 0, 0, // PC_MTXER - Stage1, 1, 1, 0, 0, 0, // PC_MTCTR - BranchUnit, 2, 2, 0, 0, 0, // PC_MTLR - BranchUnit, 2, 2, 0, 0, 0, // PC_MTCRF - Stage1, 1, 1, 0, 0, 0, // PC_MTMSR - Stage1, 1, 1, 0, 0, 0, // PC_MTSPR - Stage1, 1, 1, 0, 0, 0, // PC_MFMSR - Stage1, 1, 1, 0, 0, 0, // PC_MFSPR - Stage1, 1, 1, 0, 0, 0, // PC_MFXER - Stage7, 3, 1, 1, 1, 0, // PC_MFCTR - Stage7, 3, 1, 1, 1, 0, // PC_MFLR - Stage1, 1, 1, 0, 0, 0, // PC_MFCR - Stage1, 1, 1, 0, 0, 0, // PC_MFFS - Stage1, 1, 1, 0, 0, 0, // PC_MTFSF - Stage1, 1, 1, 0, 0, 0, // PC_EIEIO - Stage1, 1, 1, 0, 0, 0, // PC_ISYNC - Stage1, 1, 1, 0, 0, 0, // PC_SYNC - Stage1, 1, 1, 0, 0, 0, // PC_RFI - Stage1, 1, 1, 0, 0, 0, // PC_LI - LSU1, 2, 1, 1, 0, 0, // PC_LIS - LSU1, 2, 1, 1, 0, 0, // PC_MR - LSU1, 2, 1, 1, 0, 0, // PC_NOP - LSU1, 2, 1, 1, 0, 0, // PC_NOT - LSU1, 2, 1, 1, 0, 0, // PC_LFS - LSU1, 2, 1, 1, 0, 0, // PC_LFSU - LSU1, 2, 1, 1, 0, 0, // PC_LFSX - LSU1, 2, 1, 1, 0, 0, // PC_LFSUX - LSU1, 2, 1, 1, 0, 0, // PC_LFD - LSU1, 2, 1, 1, 0, 0, // PC_LFDU - LSU1, 2, 1, 1, 0, 0, // PC_LFDX - LSU1, 2, 1, 1, 0, 0, // PC_LFDUX - LSU1, 2, 1, 1, 0, 0, // PC_STFS - LSU1, 2, 1, 1, 0, 0, // PC_STFSU - LSU1, 2, 1, 1, 0, 0, // PC_STFSX - LSU1, 2, 1, 1, 0, 0, // PC_STFSUX - Stage7, 3, 1, 1, 1, 0, // PC_STFD - Stage7, 3, 1, 1, 1, 0, // PC_STFDU - Stage7, 3, 1, 1, 1, 0, // PC_STFDX - Stage7, 3, 1, 1, 1, 0, // PC_STFDUX - Stage7, 3, 1, 1, 1, 0, // PC_FMR - Stage7, 3, 1, 1, 1, 0, // PC_FABS - Stage7, 3, 1, 1, 1, 0, // PC_FNEG - Stage7, 3, 1, 1, 1, 0, // PC_FNABS - Stage7, 4, 2, 1, 1, 0, // PC_FADD - Stage7, 3, 1, 1, 1, 0, // PC_FADDS - Stage7, 33, 33, 0, 0, 0, // PC_FSUB - Stage7, 18, 18, 0, 0, 0, // PC_FSUBS - Stage7, 4, 2, 1, 1, 0, // PC_FMUL - Stage7, 3, 1, 1, 1, 0, // PC_FMULS - Stage7, 4, 2, 1, 1, 0, // PC_FDIV - Stage7, 3, 1, 1, 1, 0, // PC_FDIVS - Stage7, 4, 2, 1, 1, 0, // PC_FMADD - Stage7, 3, 1, 1, 1, 0, // PC_FMADDS - Stage7, 4, 2, 1, 1, 0, // PC_FMSUB - Stage7, 3, 1, 1, 1, 0, // PC_FMSUBS - Stage7, 18, 18, 0, 0, 0, // PC_FNMADD - Stage7, 3, 1, 1, 1, 0, // PC_FNMADDS - Stage7, 3, 1, 1, 1, 0, // PC_FNMSUB - Stage7, 3, 1, 1, 1, 0, // PC_FNMSUBS - Stage7, 3, 1, 1, 1, 0, // PC_FRES - Stage7, 3, 1, 1, 1, 0, // PC_FRSQRTE - Stage7, 5, 1, 1, 1, 0, // PC_FSEL - Stage7, 5, 1, 1, 1, 0, // PC_FRSP - LSU1, 1, 0, 0, 0, 0, // PC_FCTIW - LSU1, 1, 0, 0, 0, 0, // PC_FCTIWZ - LSU1, 1, 0, 0, 0, 0, // PC_FCMPU - LSU1, 1, 0, 0, 0, 0, // PC_FCMPO - LSU1, 1, 0, 0, 0, 0, // PC_LWARX - LSU1, 1, 0, 0, 0, 0, // PC_LSWI - LSU1, 1, 0, 0, 0, 0, // PC_LSWX - Stage1, 1, 0, 0, 0, 0, // PC_STFIWX - Stage1, 1, 0, 0, 0, 0, // PC_STSWI - Stage1, 1, 0, 0, 0, 0, // PC_STSWX - Stage1, 1, 0, 0, 0, 0, // PC_STWCX - Stage1, 1, 0, 0, 0, 0, // PC_ECIWX - Stage1, 1, 0, 0, 0, 0, // PC_ECOWX - Stage1, 1, 0, 0, 0, 0, // PC_DCBI - Stage1, 1, 0, 0, 0, 0, // PC_ICBI - Stage1, 1, 0, 0, 0, 0, // PC_MCRFS - Stage1, 1, 0, 0, 0, 0, // PC_MCRXR - Stage1, 1, 0, 0, 0, 0, // PC_MFTB - Stage1, 1, 0, 0, 0, 0, // PC_MFSR - Stage1, 1, 0, 0, 0, 0, // PC_MTSR - Stage1, 1, 0, 0, 0, 0, // PC_MFSRIN - Stage1, 1, 0, 0, 0, 0, // PC_MTSRIN - Stage1, 1, 0, 0, 0, 0, // PC_MTFSB0 - Stage1, 1, 0, 0, 0, 0, // PC_MTFSB1 - Stage1, 1, 0, 0, 0, 0, // PC_MTFSFI - Stage1, 1, 0, 0, 0, 1, // PC_SC - Stage1, 1, 0, 0, 0, 1, // PC_FSQRT - Stage1, 1, 0, 0, 0, 0, // PC_FSQRTS - Stage1, 1, 0, 0, 0, 0, // PC_TLBIA - Stage1, 1, 0, 0, 0, 0, // PC_TLBIE - Stage1, 1, 0, 0, 0, 0, // PC_TLBLD - Stage1, 1, 0, 0, 0, 0, // PC_TLBLI - Stage1, 1, 0, 0, 0, 0, // PC_TLBSYNC - Stage1, 1, 0, 0, 0, 0, // PC_TW - Stage1, 1, 0, 0, 0, 1, // PC_TRAP - Stage1, 1, 0, 0, 0, 1, // PC_TWI - Stage1, 1, 0, 0, 0, 1, // PC_OPWORD - Stage1, 1, 0, 0, 0, 1, // PC_MFROM - Stage1, 1, 0, 0, 0, 0, // PC_DSA - Stage1, 1, 0, 0, 0, 0, // PC_ESA - Stage1, 1, 0, 0, 0, 0, // PC_DCCCI - Stage1, 0, 0, 0, 0, 0, // PC_DCREAD - Stage1, 0, 0, 0, 0, 0, // PC_ICBT - Stage1, 0, 0, 0, 0, 0, // PC_ICCCI - Stage1, 0, 0, 0, 0, 0, // PC_ICREAD - Stage1, 0, 0, 0, 0, 0, // PC_RFCI - Stage1, 0, 0, 0, 0, 0, // PC_TLBRE - Stage1, 0, 0, 0, 0, 0, // PC_TLBSX - Stage1, 0, 0, 0, 0, 0, // PC_TLBWE - Stage1, 0, 0, 0, 0, 0, // PC_WRTEE - Stage1, 0, 0, 0, 0, 0, // PC_WRTEEI - Stage1, 0, 0, 0, 0, 0, // PC_MFDCR - Stage1, 0, 0, 0, 0, 0, // PC_MTDCR - Stage1, 0, 0, 0, 0, 0, // PC_DCBA - Stage1, 0, 0, 0, 0, 0, // PC_DSS - BranchUnit, 0, 0, 0, 0, 0, // PC_DSSALL - BranchUnit, 0, 0, 0, 0, 0, // PC_DST - BranchUnit, 0, 0, 0, 0, 0, // PC_DSTT - BranchUnit, 0, 0, 0, 0, 0, // PC_DSTST - BranchUnit, 0, 0, 0, 0, 0, // PC_DSTSTT - BranchUnit, 0, 0, 0, 0, 0, // PC_LVEBX - BranchUnit, 0, 0, 0, 0, 0, // PC_LVEHX - BranchUnit, 0, 0, 0, 0, 0, // PC_LVEWX - BranchUnit, 0, 0, 0, 0, 0, // PC_LVSL - BranchUnit, 0, 0, 0, 0, 0, // PC_LVSR - BranchUnit, 0, 0, 0, 0, 0, // PC_LVX - BranchUnit, 0, 0, 0, 0, 0, // PC_LVXL - BranchUnit, 0, 0, 0, 0, 0, // PC_STVEBX - BranchUnit, 0, 0, 0, 0, 0, // PC_STVEHX - BranchUnit, 0, 0, 0, 0, 0, // PC_STVEWX - BranchUnit, 0, 0, 0, 0, 0, // PC_STVX - BranchUnit, 0, 0, 0, 0, 0, // PC_STVXL - BranchUnit, 0, 0, 0, 0, 0, // PC_MFVSCR - BranchUnit, 0, 0, 0, 0, 0, // PC_MTVSCR - BranchUnit, 0, 0, 0, 0, 0, // PC_VADDCUW - BranchUnit, 0, 0, 0, 0, 0, // PC_VADDFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VADDSBS - BranchUnit, 0, 0, 0, 0, 0, // PC_VADDSHS - BranchUnit, 0, 0, 0, 0, 0, // PC_VADDSWS - BranchUnit, 0, 0, 0, 0, 0, // PC_VADDUBM - BranchUnit, 0, 0, 0, 0, 0, // PC_VADDUBS - BranchUnit, 0, 0, 0, 0, 0, // PC_VADDUHM - BranchUnit, 0, 0, 0, 0, 0, // PC_VADDUHS - BranchUnit, 0, 0, 0, 0, 0, // PC_VADDUWM - BranchUnit, 0, 0, 0, 0, 0, // PC_VADDUWS - BranchUnit, 0, 0, 0, 0, 0, // PC_VAND - BranchUnit, 0, 0, 0, 0, 0, // PC_VANDC - BranchUnit, 0, 0, 0, 0, 0, // PC_VAVGSB - BranchUnit, 0, 0, 0, 0, 0, // PC_VAVGSH - BranchUnit, 0, 0, 0, 0, 0, // PC_VAVGSW - BranchUnit, 0, 0, 0, 0, 0, // PC_VAVGUB - BranchUnit, 0, 0, 0, 0, 0, // PC_VAVGUH - BranchUnit, 0, 0, 0, 0, 0, // PC_VAVGUW - BranchUnit, 0, 0, 0, 0, 0, // PC_VCFSX - BranchUnit, 0, 0, 0, 0, 0, // PC_VCFUX - BranchUnit, 0, 0, 0, 0, 0, // PC_VCMPBFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VCMPEQFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VCMPEQUB - BranchUnit, 0, 0, 0, 0, 0, // PC_VCMPEQUH - BranchUnit, 0, 0, 0, 0, 0, // PC_VCMPEQUW - BranchUnit, 0, 0, 0, 0, 0, // PC_VCMPGEFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VCMPGTFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VCMPGTSB - BranchUnit, 0, 0, 0, 0, 0, // PC_VCMPGTSH - BranchUnit, 0, 0, 0, 0, 0, // PC_VCMPGTSW - BranchUnit, 0, 0, 0, 0, 0, // PC_VCMPGTUB - BranchUnit, 0, 0, 0, 0, 0, // PC_VCMPGTUH - BranchUnit, 0, 0, 0, 0, 0, // PC_VCMPGTUW - BranchUnit, 0, 0, 0, 0, 0, // PC_VCTSXS - BranchUnit, 0, 0, 0, 0, 0, // PC_VCTUXS - BranchUnit, 0, 0, 0, 0, 0, // PC_VEXPTEFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VLOGEFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VMAXFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VMAXSB - BranchUnit, 0, 0, 0, 0, 0, // PC_VMAXSH - BranchUnit, 0, 0, 0, 0, 0, // PC_VMAXSW - BranchUnit, 0, 0, 0, 0, 0, // PC_VMAXUB - BranchUnit, 0, 0, 0, 0, 0, // PC_VMAXUH - BranchUnit, 0, 0, 0, 0, 0, // PC_VMAXUW - BranchUnit, 0, 0, 0, 0, 0, // PC_VMINFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VMINSB - BranchUnit, 0, 0, 0, 0, 0, // PC_VMINSH - BranchUnit, 0, 0, 0, 0, 0, // PC_VMINSW - BranchUnit, 0, 0, 0, 0, 0, // PC_VMINUB - BranchUnit, 0, 0, 0, 0, 0, // PC_VMINUH - BranchUnit, 0, 0, 0, 0, 0, // PC_VMINUW - BranchUnit, 0, 0, 0, 0, 0, // PC_VMRGHB - BranchUnit, 0, 0, 0, 0, 0, // PC_VMRGHH - BranchUnit, 0, 0, 0, 0, 0, // PC_VMRGHW - BranchUnit, 0, 0, 0, 0, 0, // PC_VMRGLB - BranchUnit, 0, 0, 0, 0, 0, // PC_VMRGLH - BranchUnit, 0, 0, 0, 0, 0, // PC_VMRGLW - BranchUnit, 0, 0, 0, 0, 0, // PC_VMULESB - BranchUnit, 0, 0, 0, 0, 0, // PC_VMULESH - BranchUnit, 0, 0, 0, 0, 0, // PC_VMULEUB - BranchUnit, 0, 0, 0, 0, 0, // PC_VMULEUH - BranchUnit, 0, 0, 0, 0, 0, // PC_VMULOSB - BranchUnit, 0, 0, 0, 0, 0, // PC_VMULOSH - BranchUnit, 0, 0, 0, 0, 0, // PC_VMULOUB - BranchUnit, 0, 0, 0, 0, 0, // PC_VMULOUH - BranchUnit, 0, 0, 0, 0, 0, // PC_VNOR - BranchUnit, 0, 0, 0, 0, 0, // PC_VOR - BranchUnit, 0, 0, 0, 0, 0, // PC_VPKPX - BranchUnit, 0, 0, 0, 0, 0, // PC_VPKSHSS - BranchUnit, 0, 0, 0, 0, 0, // PC_VPKSHUS - BranchUnit, 0, 0, 0, 0, 0, // PC_VPKSWSS - BranchUnit, 0, 0, 0, 0, 0, // PC_VPKSWUS - BranchUnit, 0, 0, 0, 0, 0, // PC_VPKUHUM - BranchUnit, 0, 0, 0, 0, 0, // PC_VPKUHUS - BranchUnit, 0, 0, 0, 0, 0, // PC_VPKUWUM - BranchUnit, 0, 0, 0, 0, 0, // PC_VPKUWUS - BranchUnit, 0, 0, 0, 0, 0, // PC_VREFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VRFIM - BranchUnit, 0, 0, 0, 0, 0, // PC_VRFIN - BranchUnit, 0, 0, 0, 0, 0, // PC_VRFIP - BranchUnit, 0, 0, 0, 0, 0, // PC_VRFIZ - BranchUnit, 0, 0, 0, 0, 0, // PC_VRLB - BranchUnit, 0, 0, 0, 0, 0, // PC_VRLH - BranchUnit, 0, 0, 0, 0, 0, // PC_VRLW - BranchUnit, 0, 0, 0, 0, 0, // PC_VRSQRTEFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VSL - BranchUnit, 0, 0, 0, 0, 0, // PC_VSLB - BranchUnit, 0, 0, 0, 0, 0, // PC_VSLH - BranchUnit, 0, 0, 0, 0, 0, // PC_VSLO - BranchUnit, 0, 0, 0, 0, 0, // PC_VSLW - BranchUnit, 0, 0, 0, 0, 0, // PC_VSPLTB - BranchUnit, 0, 0, 0, 0, 0, // PC_VSPLTH - BranchUnit, 0, 0, 0, 0, 0, // PC_VSPLTW - BranchUnit, 0, 0, 0, 0, 0, // PC_VSPLTISB - BranchUnit, 0, 0, 0, 0, 0, // PC_VSPLTISH - BranchUnit, 0, 0, 0, 0, 0, // PC_VSPLTISW - BranchUnit, 0, 0, 0, 0, 0, // PC_VSR - BranchUnit, 0, 0, 0, 0, 0, // PC_VSRAB - BranchUnit, 0, 0, 0, 0, 0, // PC_VSRAH - BranchUnit, 0, 0, 0, 0, 0, // PC_VSRAW - BranchUnit, 0, 0, 0, 0, 0, // PC_VSRB - BranchUnit, 0, 0, 0, 0, 0, // PC_VSRH - BranchUnit, 0, 0, 0, 0, 0, // PC_VSRO - BranchUnit, 0, 0, 0, 0, 0, // PC_VSRW - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUBCUW - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUBFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUBSBS - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUBSHS - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUBSWS - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUBUBM - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUBUBS - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUBUHM - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUBUHS - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUBUWM - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUBUWS - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUMSWS - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUM2SWS - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUM4SBS - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUM4SHS - BranchUnit, 0, 0, 0, 0, 0, // PC_VSUM4UBS - BranchUnit, 0, 0, 0, 0, 0, // PC_VUPKHPX - BranchUnit, 0, 0, 0, 0, 0, // PC_VUPKHSB - BranchUnit, 0, 0, 0, 0, 0, // PC_VUPKHSH - BranchUnit, 0, 0, 0, 0, 0, // PC_VUPKLPX - BranchUnit, 0, 0, 0, 0, 0, // PC_VUPKLSB - BranchUnit, 0, 0, 0, 0, 0, // PC_VUPKLSH - BranchUnit, 0, 0, 0, 0, 0, // PC_VXOR - BranchUnit, 0, 0, 0, 0, 0, // PC_VMADDFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VMHADDSHS - BranchUnit, 0, 0, 0, 0, 0, // PC_VMHRADDSHS - BranchUnit, 0, 0, 0, 0, 0, // PC_VMLADDUHM - BranchUnit, 0, 0, 0, 0, 0, // PC_VMSUMMBM - BranchUnit, 0, 0, 0, 0, 0, // PC_VMSUMSHM - BranchUnit, 0, 0, 0, 0, 0, // PC_VMSUMSHS - BranchUnit, 0, 0, 0, 0, 0, // PC_VMSUMUBM - BranchUnit, 0, 0, 0, 0, 0, // PC_VMSUMUHM - BranchUnit, 0, 0, 0, 0, 0, // PC_VMSUMUHS - BranchUnit, 0, 0, 0, 0, 0, // PC_VNMSUBFP - BranchUnit, 0, 0, 0, 0, 0, // PC_VPERM - BranchUnit, 0, 0, 0, 0, 0, // PC_VSEL - BranchUnit, 0, 0, 0, 0, 0, // PC_VSLDOI - BranchUnit, 0, 0, 0, 0, 0, // PC_VMR - BranchUnit, 0, 0, 0, 0, 0, // PC_VMRP - BranchUnit, 0, 0, 0, 0, 0, // PC_SLE - BranchUnit, 0, 0, 0, 0, 0, // PC_SLEQ - BranchUnit, 0, 0, 0, 0, 0, // PC_SLIQ - BranchUnit, 0, 0, 0, 0, 0, // PC_SLLIQ - BranchUnit, 0, 0, 0, 0, 0, // PC_SLLQ - BranchUnit, 0, 0, 0, 0, 0, // PC_SLQ - BranchUnit, 0, 0, 0, 0, 0, // PC_SRAIQ - BranchUnit, 0, 0, 0, 0, 0, // PC_SRAQ - BranchUnit, 0, 0, 0, 0, 0, // PC_SRE - BranchUnit, 0, 0, 0, 0, 0, // PC_SREA - BranchUnit, 0, 0, 0, 0, 0, // PC_SREQ - BranchUnit, 0, 0, 0, 0, 0, // PC_SRIQ - BranchUnit, 0, 0, 0, 0, 0, // PC_SRLIQ - BranchUnit, 0, 0, 0, 0, 0, // PC_SRLQ - BranchUnit, 0, 0, 0, 0, 0, // PC_SRQ - BranchUnit, 0, 0, 0, 0, 0, // PC_MASKG - BranchUnit, 0, 0, 0, 0, 0, // PC_MASKIR - BranchUnit, 0, 0, 0, 0, 0, // PC_LSCBX - BranchUnit, 0, 0, 0, 0, 0, // PC_DIV - BranchUnit, 0, 0, 0, 0, 0, // PC_DIVS - BranchUnit, 0, 0, 0, 0, 0, // PC_DOZ - BranchUnit, 0, 0, 0, 0, 0, // PC_MUL - BranchUnit, 0, 0, 0, 0, 0, // PC_NABS - BranchUnit, 0, 0, 0, 0, 0, // PC_ABS - BranchUnit, 0, 0, 0, 0, 0, // PC_CLCS - BranchUnit, 0, 0, 0, 0, 0, // PC_DOZI - BranchUnit, 0, 0, 0, 0, 0, // PC_RLMI - BranchUnit, 0, 0, 0, 0, 0, // PC_RRIB -}; - -static void advance(int firstStage, int oldStage, int newStage) { - PCode *instr = pipeline[oldStage].instr; - int cycles = instruction_timing[instr->op].cycles[newStage - firstStage]; - pipeline[newStage].instr = instr; - pipeline[newStage].remaining = cycles; - pipeline[oldStage].instr = NULL; -} - -static void assign_completion_buffer(PCode *instr) { - completionbuffers.used++; - completionbuffers.free--; - completionbuffers.entries[completionbuffers.nextFreeSlot].instr = instr; - completionbuffers.entries[completionbuffers.nextFreeSlot].completed = 0; - completionbuffers.nextFreeSlot = (completionbuffers.nextFreeSlot + 1) % MaxEntries; -} - -static void complete_instruction(int stage) { - PCode *instr = pipeline[stage].instr; - int buf = 0; - while (buf < MaxEntries && completionbuffers.entries[buf].instr != instr) - buf++; - - completionbuffers.entries[buf].completed = 1; - pipeline[stage].instr = NULL; -} - -static void retire_instruction(void) { - completionbuffers.entries[completionbuffers.nextToRetire].instr = NULL; - completionbuffers.used--; - completionbuffers.free++; - completionbuffers.nextToRetire = (completionbuffers.nextToRetire + 1) % MaxEntries; -} - -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; - int i; - - for (stage = 0; stage < NumStages; stage++) - pipeline[stage].instr = NULL; - - completionbuffers.free = MaxEntries; - completionbuffers.used = 0; - completionbuffers.nextToRetire = 0; - completionbuffers.nextFreeSlot = 0; - for (i = 0; i < MaxEntries; i++) - completionbuffers.entries[i].instr = NULL; -} - -static int can_issue(PCode *instr) { - int stage; - - if (completionbuffers.free == 0) - return 0; - - stage = instruction_timing[instr->op].stage; - if (pipeline[stage].instr) - return 0; - - if ((instr->flags & fIsWrite) && pipeline[LSU2].instr && (pipeline[LSU2].instr->flags & fIsWrite)) - return 0; - - return 1; -} - -static void issue(PCode *instr) { - int stage = instruction_timing[instr->op].stage; - int cycles = instruction_timing[instr->op].cycles[0]; - assign_completion_buffer(instr); - 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 (completionbuffers.used && completionbuffers.entries[completionbuffers.nextToRetire].completed) { - retire_instruction(); - if (completionbuffers.used && completionbuffers.entries[completionbuffers.nextToRetire].completed) { - retire_instruction(); - } - } - - if (pipeline[Stage1].instr && pipeline[Stage1].remaining == 0) - complete_instruction(Stage1); - if (pipeline[LSU2].instr && pipeline[LSU2].remaining == 0) - complete_instruction(LSU2); - if (pipeline[BranchUnit].instr && pipeline[BranchUnit].remaining == 0) - complete_instruction(BranchUnit); - - if (pipeline[LSU1].instr && pipeline[LSU1].remaining == 0 && !pipeline[LSU2].instr) - advance(LSU1, LSU1, LSU2); -} - -static int serializes(PCode *instr) { - return instruction_timing[instr->op].serializes; -} - -MachineInfo machine821 = { - 1, - 0, - 0, - &latency, - &initialize, - &can_issue, - &issue, - &advance_clock, - &serializes, - &default_uses_vpermute_unit -}; |