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ppcexec: Opcode initialization to one function. 

Move all opcode initialization to initialize_ppc_opcode_tables.
Some opcodes are illegal for some processors.
This commit is contained in:
joevt 2024-03-27 22:39:57 -07:00 committed by dingusdev
parent 094f44e92c
commit 58ed5bb56e
1 changed files with 112 additions and 100 deletions
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212
cpu/ppc/ppcexec.cpp
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@ -139,32 +139,7 @@ public:
/** Opcode lookup tables. */
/** Primary opcode (bits 0...5) lookup table. */
static PPCOpcode OpcodeGrabber[] = {
ppc_illegalop, ppc_illegalop, ppc_illegalop, ppc_twi,
ppc_illegalop, ppc_illegalop, ppc_illegalop, ppc_mulli,
ppc_subfic, power_dozi, ppc_cmpli, ppc_cmpi,
ppc_addic<RC0>, ppc_addic<RC1>,
ppc_addi<SHFT0>, ppc_addi<SHFT1>,
ppc_opcode16, ppc_sc,
ppc_opcode18, ppc_opcode19<NOT601>,
ppc_rlwimi, ppc_rlwinm, power_rlmi, ppc_rlwnm,
ppc_ori<SHFT0>, ppc_ori<SHFT1>,
ppc_xori<SHFT0>, ppc_xori<SHFT1>,
ppc_andirc<SHFT0>, ppc_andirc<SHFT1>,
ppc_illegalop, ppc_opcode31,
ppc_lz<uint32_t>, ppc_lzu<uint32_t>,
ppc_lz<uint8_t>, ppc_lzu<uint8_t>,
ppc_st<uint32_t>, ppc_stu<uint32_t>,
ppc_st<uint8_t>, ppc_stu<uint8_t>,
ppc_lz<uint16_t>, ppc_lzu<uint16_t>,
ppc_lha, ppc_lhau,
ppc_st<uint16_t>, ppc_stu<uint16_t>,
ppc_lmw, ppc_stmw,
ppc_lfs, ppc_lfsu, ppc_lfd, ppc_lfdu,
ppc_stfs, ppc_stfsu, ppc_stfd, ppc_stfdu,
ppc_illegalop, ppc_illegalop, ppc_illegalop, ppc_opcode59,
ppc_illegalop, ppc_illegalop, ppc_illegalop, ppc_opcode63
};
static PPCOpcode OpcodeGrabber[64];
/** Lookup tables for branch instructions. */
const static PPCOpcode SubOpcode16Grabber[] = {
@ -182,9 +157,9 @@ const static PPCOpcode SubOpcode18Grabber[] = {
/** Instructions decoding tables for integer,
single floating-point, and double-floating point ops respectively */
PPCOpcode SubOpcode31Grabber[2048];
PPCOpcode SubOpcode59Grabber[64];
PPCOpcode SubOpcode63Grabber[2048];
static PPCOpcode SubOpcode31Grabber[2048];
static PPCOpcode SubOpcode59Grabber[64];
static PPCOpcode SubOpcode63Grabber[2048];
/** Exception helpers. */
@ -586,53 +561,113 @@ Opcode table macros:
- o is for overflow (OV).
- c is for carry CARRY0/CARRY1. It also works for other options:
SHFT0/SHFT1, RIGHT0/LEFT1, uint8_t/uint16_t/uint32_t, and int8_t/int16_t.
- t is for two. It's like d for dot but for when the function used for Rc=0 and Rc=1
is the same (usually for illegal_op).
*/
#define OP(opcode, subopcode, fn) \
SubOpcode ## opcode ## Grabber[((subopcode)<<1)] = fn;
#define OP(opcode, fn) \
do { \
OpcodeGrabber[opcode] = fn; \
} while (0)
#define OPd(opcode, subopcode, fn) \
SubOpcode ## opcode ## Grabber[((subopcode)<<1)] = fn<RC0>; \
SubOpcode ## opcode ## Grabber[((subopcode)<<1)+1] = fn<RC1>;
#define OPX(opcode, subopcode, fn) \
do { \
opcode ## Grabber[((subopcode)<<1)] = fn; \
} while (0)
#define OPt(opcode, subopcode, fn) \
SubOpcode ## opcode ## Grabber[((subopcode)<<1)] = fn; \
SubOpcode ## opcode ## Grabber[((subopcode)<<1)+1] = fn;
#define OPXd(opcode, subopcode, fn) \
do { \
opcode ## Grabber[((subopcode)<<1)] = fn<RC0>; \
opcode ## Grabber[((subopcode)<<1)+1] = fn<RC1>; \
} while (0)
#define OPod(opcode, subopcode, fn) \
SubOpcode ## opcode ## Grabber[((subopcode)<<1)] = fn<RC0, OV0>; \
SubOpcode ## opcode ## Grabber[((subopcode)<<1)+1] = fn<RC1, OV0>; \
SubOpcode ## opcode ## Grabber[1024+((subopcode)<<1)] = fn<RC0, OV1>; \
SubOpcode ## opcode ## Grabber[1024+((subopcode)<<1)+1] = fn<RC1, OV1>;
#define OPXod(opcode, subopcode, fn) \
do { \
opcode ## Grabber[((subopcode)<<1)] = fn<RC0, OV0>; \
opcode ## Grabber[((subopcode)<<1)+1] = fn<RC1, OV0>; \
opcode ## Grabber[1024+((subopcode)<<1)] = fn<RC0, OV1>; \
opcode ## Grabber[1024+((subopcode)<<1)+1] = fn<RC1, OV1>; \
} while (0)
#define OPdc(opcode, subopcode, fn, carry) \
SubOpcode ## opcode ## Grabber[((subopcode)<<1)] = fn<carry, RC0>; \
SubOpcode ## opcode ## Grabber[((subopcode)<<1)+1] = fn<carry, RC1>;
#define OPXdc(opcode, subopcode, fn, carry) \
do { \
opcode ## Grabber[((subopcode)<<1)] = fn<carry, RC0>; \
opcode ## Grabber[((subopcode)<<1)+1] = fn<carry, RC1>; \
} while (0)
#define OPcod(opcode, subopcode, fn, carry) \
SubOpcode ## opcode ## Grabber[((subopcode)<<1)] = fn<carry, RC0, OV0>; \
SubOpcode ## opcode ## Grabber[((subopcode)<<1)+1] = fn<carry, RC1, OV0>; \
SubOpcode ## opcode ## Grabber[1024+((subopcode)<<1)] = fn<carry, RC0, OV1>; \
SubOpcode ## opcode ## Grabber[1024+((subopcode)<<1)+1] = fn<carry, RC1, OV1>;
#define OPXcod(opcode, subopcode, fn, carry) \
do { \
opcode ## Grabber[((subopcode)<<1)] = fn<carry, RC0, OV0>; \
opcode ## Grabber[((subopcode)<<1)+1] = fn<carry, RC1, OV0>; \
opcode ## Grabber[1024+((subopcode)<<1)] = fn<carry, RC0, OV1>; \
opcode ## Grabber[1024+((subopcode)<<1)+1] = fn<carry, RC1, OV1>; \
} while (0)
#define OP31(subopcode, fn) OP(31, subopcode, fn)
#define OP31d(subopcode, fn) OPd(31, subopcode, fn)
#define OP31od(subopcode, fn) OPod(31, subopcode, fn)
#define OP31dc(subopcode, fn, carry) OPdc(31, subopcode, fn, carry)
#define OP31cod(subopcode, fn, carry) OPcod(31, subopcode, fn, carry)
#define OP31(subopcode, fn) OPX(SubOpcode31, subopcode, fn)
#define OP31d(subopcode, fn) OPXd(SubOpcode31, subopcode, fn)
#define OP31od(subopcode, fn) OPXod(SubOpcode31, subopcode, fn)
#define OP31dc(subopcode, fn, carry) OPXdc(SubOpcode31, subopcode, fn, carry)
#define OP31cod(subopcode, fn, carry) OPXcod(SubOpcode31, subopcode, fn, carry)
#define OP59(subopcode, fn) OP(59, subopcode, fn)
#define OP59d(subopcode, fn) OPd(59, subopcode, fn)
#define OP59t(subopcode, fn) OPt(59, subopcode, fn)
#define OP59d(subopcode, fn) OPXd(SubOpcode59, subopcode, fn)
#define OP63(subopcode, fn) OP(63, subopcode, fn)
#define OP63d(subopcode, fn) OPd(63, subopcode, fn)
#define OP63t(subopcode, fn) OPt(63, subopcode, fn)
#define OP63dc(subopcode, fn, carry) OPdc(63, subopcode, fn, carry)
#define OP63(subopcode, fn) OPX(SubOpcode63, subopcode, fn)
#define OP63d(subopcode, fn) OPXd(SubOpcode63, subopcode, fn)
#define OP63dc(subopcode, fn, carry) OPXdc(SubOpcode63, subopcode, fn, carry)
void initialize_ppc_opcode_tables() {
std::fill_n(OpcodeGrabber, 64, ppc_illegalop);
OP(3, ppc_twi);
//OP(4, ppc_opcode4); - Altivec instructions not emulated yet. Uncomment once they're implemented.
OP(7, ppc_mulli);
OP(8, ppc_subfic);
if (is_601) OP(9, power_dozi);
OP(10, ppc_cmpli);
OP(11, ppc_cmpi);
OP(12, ppc_addic<RC0>);
OP(13, ppc_addic<RC1>);
OP(14, ppc_addi<SHFT0>);
OP(15, ppc_addi<SHFT1>);
OP(16, ppc_opcode16);
OP(17, ppc_sc);
OP(18, ppc_opcode18);
if (is_601) OP(19, ppc_opcode19<IS601>); else OP(19, ppc_opcode19<NOT601>);
OP(20, ppc_rlwimi);
OP(21, ppc_rlwinm);
if (is_601) OP(22, power_rlmi);
OP(23, ppc_rlwnm);
OP(24, ppc_ori<SHFT0>);
OP(25, ppc_ori<SHFT1>);
OP(26, ppc_xori<SHFT0>);
OP(27, ppc_xori<SHFT1>);
OP(28, ppc_andirc<SHFT0>);
OP(29, ppc_andirc<SHFT1>);
OP(31, ppc_opcode31);
OP(32, ppc_lz<uint32_t>);
OP(33, ppc_lzu<uint32_t>);
OP(34, ppc_lz<uint8_t>);
OP(35, ppc_lzu<uint8_t>);
OP(36, ppc_st<uint32_t>);
OP(37, ppc_stu<uint32_t>);
OP(38, ppc_st<uint8_t>);
OP(39, ppc_stu<uint8_t>);
OP(40, ppc_lz<uint16_t>);
OP(41, ppc_lzu<uint16_t>);
OP(42, ppc_lha);
OP(43, ppc_lhau);
OP(44, ppc_st<uint16_t>);
OP(45, ppc_stu<uint16_t>);
OP(46, ppc_lmw);
OP(47, ppc_stmw);
OP(48, ppc_lfs);
OP(49, ppc_lfsu);
OP(50, ppc_lfd);
OP(51, ppc_lfdu);
OP(52, ppc_stfs);
OP(53, ppc_stfsu);
OP(54, ppc_stfd);
OP(55, ppc_stfdu);
OP(59, ppc_opcode59);
OP(63, ppc_opcode63);
std::fill_n(SubOpcode31Grabber, 2048, ppc_illegalop);
OP31(0, ppc_cmp);
OP31(4, ppc_tw);
@ -690,7 +725,7 @@ void initialize_ppc_opcode_tables() {
OP31(727, ppc_stfdx);
OP31(759, ppc_stfdux);
OP31(918, ppc_sthbrx);
OP31(983, ppc_stfiwx);
if (!is_601) OP31(983, ppc_stfiwx);
OP31(310, ppc_eciwx);
OP31(438, ppc_ecowx);
@ -719,7 +754,7 @@ void initialize_ppc_opcode_tables() {
OP31(210, ppc_mtsr);
OP31(242, ppc_mtsrin);
OP31(339, ppc_mfspr);
OP31(371, ppc_mftb);
if (!is_601) OP31(371, ppc_mftb);
OP31(467, ppc_mtspr);
OP31(512, ppc_mcrxr);
OP31(595, ppc_mfsr);
@ -763,19 +798,19 @@ void initialize_ppc_opcode_tables() {
}
OP31(306, ppc_tlbie);
OP31(370, ppc_tlbia);
OP31(566, ppc_tlbsync);
if (!is_601) OP31(370, ppc_tlbia);
if (!is_601) OP31(566, ppc_tlbsync);
OP31(854, ppc_eieio);
OP31(982, ppc_icbi);
OP31(978, ppc_tlbld);
OP31(1010, ppc_tlbli);
if (!is_601) OP31(978, ppc_tlbld);
if (!is_601) OP31(1010, ppc_tlbli);
std::fill_n(SubOpcode59Grabber, 64, ppc_illegalop);
OP59d(18, ppc_fdivs);
OP59d(20, ppc_fsubs);
OP59d(21, ppc_fadds);
OP59d(22, ppc_fsqrts);
OP59d(24, ppc_fres);
if (ppc_state.spr[SPR::PVR] == PPC_VER::MPC970MP) OP59d(22, ppc_fsqrts);
if (!is_601) OP59d(24, ppc_fres);
OP59d(25, ppc_fmuls);
OP59d(28, ppc_fmsubs);
OP59d(29, ppc_fmadds);
@ -790,8 +825,8 @@ void initialize_ppc_opcode_tables() {
OP63d(18, ppc_fdiv);
OP63d(20, ppc_fsub);
OP63d(21, ppc_fadd);
OP63d(22, ppc_fsqrt);
OP63d(26, ppc_frsqrte);
if (ppc_state.spr[SPR::PVR] == PPC_VER::MPC970MP) OP63d(22, ppc_fsqrt);
if (!is_601) OP63d(26, ppc_frsqrte);
OP63(32, ppc_fcmpo);
OP63d(38, ppc_mtfsb1);
OP63d(40, ppc_fneg);
@ -801,11 +836,11 @@ void initialize_ppc_opcode_tables() {
OP63d(134, ppc_mtfsfi);
OP63d(136, ppc_fnabs);
OP63d(264, ppc_fabs);
OP63dc(583, ppc_mffs, NOT601);
if (is_601) OP63dc(583, ppc_mffs, IS601); else OP63dc(583, ppc_mffs, NOT601);
OP63d(711, ppc_mtfsf);
for (int i = 0; i < 1024; i += 32) {
OP63d(i + 23, ppc_fsel);
if (!is_601) OP63d(i + 23, ppc_fsel);
OP63d(i + 25, ppc_fmul);
OP63d(i + 28, ppc_fmsub);
OP63d(i + 29, ppc_fmadd);
@ -824,33 +859,10 @@ void ppc_cpu_init(MemCtrlBase* mem_ctrl, uint32_t cpu_version, uint64_t tb_freq)
set_host_rounding_mode(0);
ppc_state.spr[SPR::PVR] = cpu_version;
is_601 = (cpu_version >> 16) == 1;
is_601 = (cpu_version >> 16) == 1;
initialize_ppc_opcode_tables();
if (cpu_version == PPC_VER::MPC601) {
OpcodeGrabber[19] = ppc_opcode19<IS601>;
OP31(370, ppc_illegalop); // tlbia
OP31(371, ppc_illegalop); // mftb
OP31(566, ppc_illegalop); // tlbsync
OP31(978, ppc_illegalop); // tlbld // 603e and later
OP31(983, ppc_illegalop); // stfiwx
OP31(1010, ppc_illegalop); // tlbli // 603e and later
OP59t(24, ppc_illegalop); // fres
OP63t(26, ppc_illegalop); // frsqrte
OP63dc(583, ppc_mffs, IS601);
for (int i = 0; i < 1024; i += 32) {
OP63t(i + 23, ppc_illegalop); // fsel
}
} else {
OpcodeGrabber[9] = ppc_illegalop; // dozi
OpcodeGrabber[22] = ppc_illegalop; // rlmi and rlmi.
}
if (cpu_version != PPC_VER::MPC970MP) {
OP59t(22, ppc_illegalop); // fsqrts
OP63t(22, ppc_illegalop); // fsqrt
}
// initialize emulator timers
TimerManager::get_instance()->set_time_now_cb(&get_virt_time_ns);
TimerManager::get_instance()->set_notify_changes_cb(&force_cycle_counter_reload);