move lots of source files around to match their actual placement in the original treemain

1 files changed, 752 insertions, 0 deletions

diff --git a/compiler_and_linker/BackEnd/PowerPC/Scheduler/MachineSimulationAltiVec.c b/compiler_and_linker/BackEnd/PowerPC/Scheduler/MachineSimulationAltiVec.c
new file mode 100644
index 0000000..d261ee9
--- /dev/null
+++ b/compiler_and_linker/BackEnd/PowerPC/Scheduler/MachineSimulationAltiVec.c
@@ -0,0 +1,752 @@
+#include "compiler/Scheduler.h"
+#include "compiler/CError.h"
+#include "compiler/PCode.h"
+#include "compiler/PCodeInfo.h"
+
+// https://www.nxp.com/docs/en/reference-manual/MPC7450UM.pdf
+
+typedef enum Stage {
+    BPU, // Branch Prediction Unit
+
+    IU2_1, // Multiple-Cycle Integer Unit
+    IU2_2,
+    IU2_3,
+
+    IU1a, // Single-Cycle Integer Unit
+    IU1b, // Single-Cycle Integer Unit
+    IU1c, // Single-Cycle Integer Unit
+
+    LSU_1, // Load/Store Unit
+    LSU_2,
+    LSU_3,
+    LSU_4,
+
+    FPU_1, // Floating-Point Unit
+    FPU_2,
+    FPU_3,
+    FPU_4,
+
+    VIU1, // Vector Simple Integer Unit
+
+    VPU_1, // Vector Permute Unit
+    VPU_2,
+
+    VIU2_1, // Vector Complex Integer Unit
+    VIU2_2,
+    VIU2_3,
+    VIU2_4,
+
+    VFPU_1, // Vector Floating-Point Unit
+    VFPU_2,
+    VFPU_3,
+    VFPU_4,
+
+    NumStages
+} 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_altivec[NumStages];
+
+enum {
+    Queue0,
+    Queue1,
+    Queue2,
+    Queue3,
+    Queue4,
+    Queue5,
+    Queue6,
+    Queue7,
+    NumQueues
+};
+
+static int fetchqueues[NumQueues];
+
+enum {
+    MaxEntries = 16
+};
+
+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 {
+    short index;
+
+    // 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];
+
+    // does this instruction serialise?
+    char serializes;
+
+    char unused;
+} instruction_timing[] = {
+    0,   BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_B
+    1,   BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BL
+    2,   BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BC
+    3,   BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BCLR
+    4,   BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BCCTR
+    5,   BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BT
+    6,   BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BTLR
+    7,   BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BTCTR
+    8,   BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BF
+    9,   BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BFLR
+    10,  BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BFCTR
+    11,  BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BDNZ
+    12,  BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BDNZT
+    13,  BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BDNZF
+    14,  BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BDZ
+    15,  BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BDZT
+    16,  BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BDZF
+    17,  BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BLR
+    18,  BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BCTR
+    19,  BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BCTRL
+    20,  BPU,  0,  0,  0,  0,  0,  0,  0,  // PC_BLRL
+    21,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LBZ
+    22,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LBZU
+    23,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LBZX
+    24,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LBZUX
+    25,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LHZ
+    26,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LHZU
+    27,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LHZX
+    28,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LHZUX
+    29,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LHA
+    30,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LHAU
+    31,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LHAX
+    32,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LHAUX
+    33,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LHBRX
+    34,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LWZ
+    35,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LWZU
+    36,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LWZX
+    37,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LWZUX
+    38,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LWBRX
+    39,  LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_LMW
+    40,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STB
+    41,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STBU
+    42,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STBX
+    43,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STBUX
+    44,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STH
+    45,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STHU
+    46,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STHX
+    47,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STHUX
+    48,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STHBRX
+    49,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STW
+    50,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STWU
+    51,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STWX
+    52,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STWUX
+    53,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STWBRX
+    54,  LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_STMW
+    55,  LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_DCBF
+    56,  LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_DCBST
+    57,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_DCBT
+    58,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_DCBTST
+    59,  LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_DCBZ
+    60,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ADD
+    61,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ADDC
+    62,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ADDE
+    63,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ADDI
+    64,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ADDIC
+    65,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ADDICR
+    66,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ADDIS
+    67,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ADDME
+    68,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ADDZE
+    69,  IU2_1,  23, 23, 0,  0,  0,  0,  0,  // PC_DIVW
+    70,  IU2_1,  23, 23, 0,  0,  0,  0,  0,  // PC_DIVWU
+    71,  IU2_1,  4,  2,  2,  0,  0,  0,  0,  // PC_MULHW
+    72,  IU2_1,  4,  2,  2,  0,  0,  0,  0,  // PC_MULHWU
+    73,  IU2_1,  3,  1,  1,  1,  0,  0,  0,  // PC_MULLI
+    74,  IU2_1,  4,  2,  2,  0,  0,  0,  0,  // PC_MULLW
+    75,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_NEG
+    76,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_SUBF
+    77,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_SUBFC
+    78,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_SUBFE
+    79,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_SUBFIC
+    80,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_SUBFME
+    81,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_SUBFZE
+    82,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_CMPI
+    83,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_CMP
+    84,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_CMPLI
+    85,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_CMPL
+    86,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ANDI
+    87,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ANDIS
+    88,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ORI
+    89,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ORIS
+    90,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_XORI
+    91,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_XORIS
+    92,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_AND
+    93,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_OR
+    94,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_XOR
+    95,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_NAND
+    96,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_NOR
+    97,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_EQV
+    98,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ANDC
+    99,  IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ORC
+    100, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_EXTSB
+    101, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_EXTSH
+    102, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_CNTLZW
+    103, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_RLWINM
+    104, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_RLWNM
+    105, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_RLWIMI
+    106, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_SLW
+    107, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_SRW
+    108, IU1a,  2,  2,  0,  0,  0,  0,  0,  // PC_SRAWI
+    109, IU1a,  2,  2,  0,  0,  0,  0,  0,  // PC_SRAW
+    110, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_CRAND
+    111, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_CRANDC
+    112, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_CREQV
+    113, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_CRNAND
+    114, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_CRNOR
+    115, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_CROR
+    116, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_CRORC
+    117, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_CRXOR
+    118, IU2_1,  1,  1,  0,  0,  0,  1,  0,  // PC_MCRF
+    119, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_MTXER
+    120, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_MTCTR
+    121, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_MTLR
+    122, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_MTCRF
+    123, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_MTMSR
+    124, IU2_1,  3,  3,  0,  0,  0,  1,  0,  // PC_MTSPR
+    125, IU2_1,  3,  2,  1,  0,  0,  0,  0,  // PC_MFMSR
+    126, IU2_1,  3,  3,  0,  0,  0,  1,  0,  // PC_MFSPR
+    127, IU2_1,  1,  1,  0,  0,  0,  1,  0,  // PC_MFXER
+    128, IU2_1,  1,  1,  0,  0,  0,  1,  0,  // PC_MFCTR
+    129, IU2_1,  1,  1,  0,  0,  0,  1,  0,  // PC_MFLR
+    130, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_MFCR
+    131, FPU_1, 5,  5,  0,  0,  0,  1,  0,  // PC_MFFS
+    132, FPU_1, 5,  5,  0,  0,  0,  1,  0,  // PC_MTFSF
+    133, LSU_1,  3,  3,  0,  0,  0,  1,  0,  // PC_EIEIO
+    134, IU2_1,  1,  1,  0,  0,  0,  1,  0,  // PC_ISYNC
+    135, LSU_1,  35, 35, 0,  0,  0,  1,  0,  // PC_SYNC
+    136, IU2_1,  1,  1,  0,  0,  0,  1,  0,  // PC_RFI
+    137, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_LI
+    138, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_LIS
+    139, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_MR
+    140, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_NOP
+    141, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_NOT
+    142, LSU_1,  4,  1,  1,  1,  1,  0,  0,  // PC_LFS
+    143, LSU_1,  4,  1,  1,  1,  1,  0,  0,  // PC_LFSU
+    144, LSU_1,  4,  1,  1,  1,  1,  0,  0,  // PC_LFSX
+    145, LSU_1,  4,  1,  1,  1,  1,  0,  0,  // PC_LFSUX
+    146, LSU_1,  4,  1,  1,  1,  1,  0,  0,  // PC_LFD
+    147, LSU_1,  4,  1,  1,  1,  1,  0,  0,  // PC_LFDU
+    148, LSU_1,  4,  1,  1,  1,  1,  0,  0,  // PC_LFDX
+    149, LSU_1,  4,  1,  1,  1,  1,  0,  0,  // PC_LFDUX
+    150, LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_STFS
+    151, LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_STFSU
+    152, LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_STFSX
+    153, LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_STFSUX
+    154, LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_STFD
+    155, LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_STFDU
+    156, LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_STFDX
+    157, LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_STFDUX
+    158, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FMR
+    159, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FABS
+    160, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FNEG
+    161, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FNABS
+    162, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FADD
+    163, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FADDS
+    164, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FSUB
+    165, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FSUBS
+    166, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FMUL
+    167, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FMULS
+    168, FPU_1, 35, 35, 0,  0,  0,  0,  0,  // PC_FDIV
+    169, FPU_1, 21, 21, 0,  0,  0,  0,  0,  // PC_FDIVS
+    170, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FMADD
+    171, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FMADDS
+    172, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FMSUB
+    173, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FMSUBS
+    174, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FNMADD
+    175, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FNMADDS
+    176, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FNMSUB
+    177, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FNMSUBS
+    178, FPU_1, 14, 14, 0,  0,  0,  0,  0,  // PC_FRES
+    179, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FRSQRTE
+    180, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FSEL
+    181, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FRSP
+    182, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FCTIW
+    183, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FCTIWZ
+    184, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FCMPU
+    185, FPU_1, 5,  1,  1,  1,  2,  0,  0,  // PC_FCMPO
+    186, LSU_1,  3,  3,  0,  0,  0,  1,  0,  // PC_LWARX
+    187, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LSWI
+    188, LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_LSWX
+    189, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STFIWX
+    190, LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_STSWI
+    191, LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_STSWX
+    192, LSU_1,  3,  1,  1,  1,  0,  1,  0,  // PC_STWCX
+    193, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_ECIWX
+    194, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_ECOWX
+    195, LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_DCBI
+    196, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_ICBI
+    197, IU2_1,  5,  5,  0,  0,  0,  1,  0,  // PC_MCRFS
+    198, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_MCRXR
+    199, IU2_1,  5,  5,  0,  0,  0,  0,  0,  // PC_MFTB
+    200, IU2_1,  4,  1,  3,  0,  0,  0,  0,  // PC_MFSR
+    201, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_MTSR
+    202, IU2_1,  4,  1,  3,  0,  0,  0,  0,  // PC_MFSRIN
+    203, IU2_1,  2,  2,  0,  0,  0,  1,  0,  // PC_MTSRIN
+    204, FPU_1, 5,  5,  0,  0,  0,  1,  0,  // PC_MTFSB0
+    205, FPU_1, 5,  5,  0,  0,  0,  1,  0,  // PC_MTFSB1
+    206, FPU_1, 5,  5,  0,  0,  0,  0,  0,  // PC_MTFSFI
+    207, IU2_1,  1,  1,  0,  0,  0,  1,  0,  // PC_SC
+    208, FPU_1, 1,  1,  0,  0,  0,  0,  0,  // PC_FSQRT
+    209, FPU_1, 1,  1,  0,  0,  0,  0,  0,  // PC_FSQRTS
+    210, LSU_1,  1,  1,  0,  0,  0,  0,  0,  // PC_TLBIA
+    211, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_TLBIE
+    212, LSU_1,  3,  3,  0,  0,  0,  0,  0,  // PC_TLBLD
+    213, LSU_1,  3,  3,  0,  0,  0,  1,  0,  // PC_TLBLI
+    214, LSU_1,  3,  3,  0,  0,  0,  1,  0,  // PC_TLBSYNC
+    215, IU1a,  2,  2,  0,  0,  0,  0,  0,  // PC_TW
+    216, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_TRAP
+    217, IU1a,  2,  2,  0,  0,  0,  0,  0,  // PC_TWI
+    218, IU1a,  1,  1,  0,  0,  0,  1,  0,  // PC_OPWORD
+    219, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_MFROM
+    220, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_DSA
+    221, IU1a,  1,  1,  0,  0,  0,  0,  0,  // PC_ESA
+    222, IU1a,  1,  0,  0,  0,  0,  0,  0,  // PC_DCCCI
+    223, IU1a,  1,  0,  0,  0,  0,  0,  0,  // PC_DCREAD
+    224, IU1a,  1,  0,  0,  0,  0,  0,  0,  // PC_ICBT
+    225, IU1a,  1,  0,  0,  0,  0,  0,  0,  // PC_ICCCI
+    226, IU1a,  1,  0,  0,  0,  0,  0,  0,  // PC_ICREAD
+    227, IU1a,  1,  0,  0,  0,  0,  0,  0,  // PC_RFCI
+    228, IU1a,  1,  0,  0,  0,  0,  0,  0,  // PC_TLBRE
+    229, IU1a,  1,  0,  0,  0,  0,  0,  0,  // PC_TLBSX
+    230, IU1a,  1,  0,  0,  0,  0,  0,  0,  // PC_TLBWE
+    231, IU1a,  1,  0,  0,  0,  0,  0,  0,  // PC_WRTEE
+    232, IU1a,  1,  0,  0,  0,  0,  0,  0,  // PC_WRTEEI
+    233, IU1a,  1,  0,  0,  0,  0,  0,  0,  // PC_MFDCR
+    234, IU1a,  1,  0,  0,  0,  0,  0,  0,  // PC_MTDCR
+    235, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_DCBA
+    236, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_DSS
+    237, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_DSSALL
+    238, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_DST
+    239, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_DSTT
+    240, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_DSTST
+    241, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_DSTSTT
+    242, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LVEBX
+    243, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LVEHX
+    244, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LVEWX
+    245, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LVSL
+    246, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LVSR
+    247, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LVX
+    248, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_LVXL
+    249, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STVEBX
+    250, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STVEHX
+    251, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STVEWX
+    252, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STVX
+    253, LSU_1,  3,  1,  1,  1,  0,  0,  0,  // PC_STVXL
+    254, VFPU_1, 2,  2,  0,  0,  0,  1,  0,  // PC_MFVSCR
+    255, VFPU_1, 2,  2,  0,  0,  0,  1,  0,  // PC_MTVSCR
+    256, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VADDCUW
+    257, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VADDFP
+    258, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VADDSBS
+    259, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VADDSHS
+    260, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VADDSWS
+    261, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VADDUBM
+    262, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VADDUBS
+    263, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VADDUHM
+    264, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VADDUHS
+    265, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VADDUWM
+    266, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VADDUWS
+    267, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VAND
+    268, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VANDC
+    269, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VAVGSB
+    270, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VAVGSH
+    271, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VAVGSW
+    272, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VAVGUB
+    273, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VAVGUH
+    274, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VAVGUW
+    275, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VCFSX
+    276, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VCFUX
+    277, VFPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VCMPBFP
+    278, VFPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VCMPEQFP
+    279, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VCMPEQUB
+    280, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VCMPEQUH
+    281, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VCMPEQUW
+    282, VFPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VCMPGEFP
+    283, VFPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VCMPGTFP
+    284, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VCMPGTSB
+    285, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VCMPGTSH
+    286, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VCMPGTSW
+    287, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VCMPGTUB
+    288, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VCMPGTUH
+    289, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VCMPGTUW
+    290, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VCTSXS
+    291, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VCTUXS
+    292, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VEXPTEFP
+    293, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VLOGEFP
+    294, VFPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VMAXFP
+    295, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VMAXSB
+    296, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VMAXSH
+    297, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VMAXSW
+    298, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VMAXUB
+    299, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VMAXUH
+    300, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VMAXUW
+    301, VFPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VMINFP
+    302, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VMINSB
+    303, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VMINSH
+    304, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VMINSW
+    305, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VMINUB
+    306, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VMINUH
+    307, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VMINUW
+    308, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VMRGHB
+    309, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VMRGHH
+    310, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VMRGHW
+    311, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VMRGLB
+    312, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VMRGLH
+    313, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VMRGLW
+    314, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMULESB
+    315, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMULESH
+    316, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMULEUB
+    317, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMULEUH
+    318, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMULOSB
+    319, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMULOSH
+    320, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMULOUB
+    321, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMULOUH
+    322, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VNOR
+    323, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VOR
+    324, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VPKPX
+    325, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VPKSHSS
+    326, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VPKSHUS
+    327, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VPKSWSS
+    328, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VPKSWUS
+    329, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VPKUHUM
+    330, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VPKUHUS
+    331, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VPKUWUM
+    332, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VPKUWUS
+    333, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VREFP
+    334, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VRFIM
+    335, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VRFIN
+    336, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VRFIP
+    337, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VRFIZ
+    338, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VRLB
+    339, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VRLH
+    340, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VRLW
+    341, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VRSQRTEFP
+    342, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VSL
+    343, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSLB
+    344, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSLH
+    345, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VSLO
+    346, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSLW
+    347, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VSPLTB
+    348, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VSPLTH
+    349, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VSPLTW
+    350, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VSPLTISB
+    351, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VSPLTISH
+    352, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VSPLTISW
+    353, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VSR
+    354, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSRAB
+    355, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSRAH
+    356, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSRAW
+    357, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSRB
+    358, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSRH
+    359, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VSRO
+    360, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSRW
+    361, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSUBCUW
+    362, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VSUBFP
+    363, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSUBSBS
+    364, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSUBSHS
+    365, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSUBSWS
+    366, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSUBUBM
+    367, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSUBUBS
+    368, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSUBUHM
+    369, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSUBUHS
+    370, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSUBUWM
+    371, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSUBUWS
+    372, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VSUMSWS
+    373, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VSUM2SWS
+    374, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VSUM4SBS
+    375, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VSUM4SHS
+    376, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VSUM4UBS
+    377, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VUPKHPX
+    378, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VUPKHSB
+    379, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VUPKHSH
+    380, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VUPKLPX
+    381, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VUPKLSB
+    382, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VUPKLSH
+    383, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VXOR
+    384, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMADDFP
+    385, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMHADDSHS
+    386, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMHRADDSHS
+    387, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMLADDUHM
+    388, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMSUMMBM
+    389, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMSUMSHM
+    390, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMSUMSHS
+    391, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMSUMUBM
+    392, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMSUMUHM
+    393, VIU2_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VMSUMUHS
+    394, VFPU_1, 4,  1,  1,  1,  1,  0,  0,  // PC_VNMSUBFP
+    395, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VPERM
+    396, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VSEL
+    397, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VSLDOI
+    398, VIU1, 1,  1,  0,  0,  0,  0,  0,  // PC_VMR
+    399, VPU_1, 2,  1,  1,  0,  0,  0,  0,  // PC_VMRP
+    -1,  IU2_1,  1,  1,  0,  0,  0,  1,  0
+};
+
+enum { NumPipelineUnits = 6 };
+static struct {
+    Stage start, end;
+} pipeline_units[8] = {
+    IU2_1, IU2_3,
+    LSU_1, LSU_4,
+    FPU_1, FPU_4,
+    VPU_1, VPU_2,
+    VIU2_1, VIU2_4,
+    VFPU_1, VFPU_4
+};
+
+enum { NumFinalStages = 11 };
+static Stage finalstages[16] = {
+    BPU, IU2_3, IU1a, IU1b,
+    IU1c, LSU_4, FPU_4, VIU1,
+    VPU_2, VIU2_4, VFPU_4
+};
+
+// forward decl
+static void complete_instruction(int stage);
+
+static void advance(int firstStage, int oldStage, int newStage) {
+    PCode *instr = pipeline_altivec[oldStage].instr;
+    int cycles = instruction_timing[instr->op].cycles[newStage - firstStage];
+    pipeline_altivec[newStage].instr = instr;
+    pipeline_altivec[newStage].remaining = cycles;
+    pipeline_altivec[oldStage].instr = NULL;
+    pipeline_altivec[oldStage].remaining = 0;
+    if (cycles == 0)
+        complete_instruction(newStage);
+}
+
+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_altivec[stage].instr;
+    int buf = 0;
+    while (buf < MaxEntries && completionbuffers.entries[buf].instr != instr)
+        buf++;
+
+    completionbuffers.entries[buf].completed = 1;
+    pipeline_altivec[stage].instr = NULL;
+}
+
+static void retire_instruction(void) {
+    completionbuffers.entries[completionbuffers.nextToRetire].instr = NULL;
+    completionbuffers.entries[completionbuffers.nextToRetire].completed = 0;
+    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 += 1;
+    if (instr->op == PC_LMW || instr->op == PC_STMW)
+        cycles += instr->argCount - 2;
+    return cycles;
+}
+
+static void initialize(void) {
+    int stage;
+    int i;
+
+    fetchqueues[Queue0] = 1;
+    for (i = 1; i < NumQueues; i++)
+        fetchqueues[i] = 0;
+
+    for (stage = 0; stage < NumStages; stage++)
+        pipeline_altivec[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;
+        completionbuffers.entries[i].completed = 0;
+    }
+}
+
+static int can_issue(PCode *instr) {
+    int stage;
+
+    if (completionbuffers.free == 0)
+        return 0;
+
+    stage = instruction_timing[instr->op].stage;
+
+    if (stage == IU1a) {
+        int isClear1 = !pipeline_altivec[IU1a].instr;
+        int isClear2 = !pipeline_altivec[IU1b].instr;
+        if (!isClear1 && !isClear2)
+            return 0;
+    } else {
+        if (pipeline_altivec[stage].instr)
+            return 0;
+    }
+
+    if (fetchqueues[Queue1] <= 0)
+        return 0;
+
+    if (stage == FPU_1) {
+        if (fetchqueues[Queue2] < 1 || fetchqueues[Queue5] >= 1)
+            return 0;
+    } else if (stage >= VIU1 && stage <= VFPU_1) {
+        if (fetchqueues[Queue4] < 1 || fetchqueues[Queue7] >= 2)
+            return 0;
+    } else if (stage != BPU) {
+        if (fetchqueues[Queue3] < 1 || fetchqueues[Queue6] >= 3)
+            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);
+
+    CError_ASSERT(879, --fetchqueues[Queue1] >= 0);
+
+    if (stage == FPU_1) {
+        fetchqueues[Queue2]--;
+        fetchqueues[Queue5]++;
+    } else if (stage >= VIU1 && stage <= VFPU_1) {
+        fetchqueues[Queue4]--;
+        fetchqueues[Queue7]++;
+    } else if (stage != BPU) {
+        fetchqueues[Queue3]--;
+        fetchqueues[Queue6]++;
+    }
+
+    fetchqueues[Queue2] = (fetchqueues[Queue1] < fetchqueues[Queue2]) ? fetchqueues[Queue1] : fetchqueues[Queue2];
+    fetchqueues[Queue3] = (fetchqueues[Queue1] < fetchqueues[Queue3]) ? fetchqueues[Queue1] : fetchqueues[Queue3];
+    fetchqueues[Queue4] = (fetchqueues[Queue1] < fetchqueues[Queue4]) ? fetchqueues[Queue1] : fetchqueues[Queue4];
+
+    if (stage == IU1a) {
+        if (!pipeline_altivec[IU1a].instr)
+            stage = IU1a;
+        else if (!pipeline_altivec[IU1b].instr)
+            stage = IU1b;
+        else if (!pipeline_altivec[IU1c].instr)
+            stage = IU1c;
+    }
+
+    pipeline_altivec[stage].instr = instr;
+    pipeline_altivec[stage].remaining = cycles;
+}
+
+static void advance_clock(void) {
+    int num;
+    int i;
+    unsigned int unit;
+
+    for (i = 0; i < NumStages; i++) {
+        if (pipeline_altivec[i].instr && pipeline_altivec[i].remaining)
+            --pipeline_altivec[i].remaining;
+    }
+
+    for (i = 0; i < 3; i++) {
+        if (completionbuffers.used == 0)
+            break;
+        if (completionbuffers.entries[completionbuffers.nextToRetire].completed == 0)
+            break;
+        retire_instruction();
+    }
+
+    unit = 0;
+    do {
+        if (pipeline_altivec[finalstages[unit]].instr && pipeline_altivec[finalstages[unit]].remaining == 0)
+            complete_instruction(finalstages[unit]);
+    } while (++unit < NumFinalStages);
+
+    unit = 0;
+    do {
+        Stage first;
+        Stage current;
+        first = pipeline_units[unit].start;
+        for (current = first; current < pipeline_units[unit].end; current++) {
+            if (pipeline_altivec[current].instr && pipeline_altivec[current].remaining == 0 && !pipeline_altivec[current + 1].instr)
+                advance(first, current, current + 1);
+        }
+    } while (++unit < NumPipelineUnits);
+
+    fetchqueues[Queue5] = 0;
+    fetchqueues[Queue6] = 0;
+    fetchqueues[Queue7] = 0;
+
+#define CHEAP_MIN(a, b) ( ((a) < (b)) ? (a) : (b) )
+    num = 2 - fetchqueues[Queue2];
+    num += 6 - fetchqueues[Queue3];
+    num += 4 - fetchqueues[Queue4];
+    num = (num > 3) ? 3 : num;
+    num = (completionbuffers.free < num) ? completionbuffers.free : num;
+    if (fetchqueues[Queue0] < num)
+        num = fetchqueues[Queue0];
+
+    fetchqueues[Queue1] += num;
+    fetchqueues[Queue0] -= num;
+
+    fetchqueues[Queue2] = CHEAP_MIN(fetchqueues[Queue1], CHEAP_MIN(2, fetchqueues[Queue2] + num));
+    fetchqueues[Queue3] = CHEAP_MIN(fetchqueues[Queue1], CHEAP_MIN(6, fetchqueues[Queue3] + num));
+    fetchqueues[Queue4] = CHEAP_MIN(fetchqueues[Queue1], CHEAP_MIN(4, fetchqueues[Queue4] + num));
+
+    CError_ASSERT(991, fetchqueues[Queue1] <= (fetchqueues[Queue2] + fetchqueues[Queue3] + fetchqueues[Queue4]));
+
+    if (fetchqueues[Queue0] <= 8)
+        fetchqueues[Queue0] += 4;
+}
+
+static int serializes(PCode *instr) {
+    return instruction_timing[instr->op].serializes;
+}
+
+static int uses_vpermute_unit_altivec(PCode *instr) {
+    return instruction_timing[instr->op].stage == VPU_1;
+}
+
+MachineInfo machine7450 = {
+    6,
+    1,
+    4,
+    &latency,
+    &initialize,
+    &can_issue,
+    &issue,
+    &advance_clock,
+    &serializes,
+    &uses_vpermute_unit_altivec
+};