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https://github.com/RaySollium99/picodrive.git
synced 2025-09-05 15:27:46 -04:00
sh2 drc, small fixes (cycle counting, invalidation)
This commit is contained in:
kub
parent
8d04801518
commit
68e50296e6
5 changed files with 67 additions and 47 deletions
2
Makefile
2
Makefile
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@ -102,7 +102,7 @@ asm_32xmemory ?= 1
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else
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use_fame ?= 1
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use_cz80 ?= 1
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ifneq (,$(filter x86% i386% mips% aarch% riscv% powerpc% ppc%, $(ARCH)))
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ifneq (,$(filter x86% i386% i686% mips% aarch% riscv% powerpc% ppc%, $(ARCH)))
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use_sh2drc ?= 1
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endif
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endif
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@ -1329,9 +1329,10 @@ static inline void emith_pool_adjust(int tcache_offs, int move_offs)
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int t2 = rcache_get_tmp(); \
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int t3 = rcache_get_tmp(); \
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/* if (sr < 0) return */ \
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emith_asrf(t2, sr, 12); \
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emith_cmp_r_imm(sr, 0); \
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EMITH_JMP_START(DCOND_LE); \
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/* turns = sr.cycles / cycles */ \
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emith_asr(t2, sr, 12); \
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emith_move_r_imm(t3, (u32)((1ULL<<32) / (cycles)) + 1); \
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emith_mul_u64(t1, t2, t2, t3); /* multiply by 1/x */ \
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rcache_free_tmp(t3); \
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@ -1362,13 +1363,11 @@ static inline void emith_pool_adjust(int tcache_offs, int move_offs)
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} while (0)
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#define emith_carry_to_t(srr, is_sub) do { \
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if (is_sub) { /* has inverted C on ARM */ \
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emith_bic_r_imm(srr, 1); \
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if (is_sub) /* has inverted C on ARM */ \
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emith_or_r_imm_c(A_COND_CC, srr, 1); \
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emith_bic_r_imm_c(A_COND_CS, srr, 1); \
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} else { \
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else \
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emith_or_r_imm_c(A_COND_CS, srr, 1); \
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emith_bic_r_imm_c(A_COND_CC, srr, 1); \
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} \
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} while (0)
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#define emith_t_to_carry(srr, is_sub) do { \
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@ -1494,7 +1493,7 @@ static void emith_sync_t(int sr)
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else if (tcond == A_COND_NV)
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emith_bic_r_imm(sr, T);
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else if (tcond >= 0) {
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emith_bic_r_imm_c(emith_invert_cond(tcond),sr, T);
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emith_bic_r_imm(sr, T);
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emith_or_r_imm_c(tcond, sr, T);
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}
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tcond = -1;
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@ -1269,9 +1269,10 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI, // x86-64,i386 common
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if (t3 == xAX) { t3 = t1; t1 = xAX; } /* for MUL */ \
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if (t3 == xDX) { t3 = t2; t2 = xDX; } \
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/* if (sr < 0) return */ \
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emith_asrf(t2, sr, 12); \
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emith_cmp_r_imm(sr, 0); \
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EMITH_JMP_START(DCOND_LE); \
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/* turns = sr.cycles / cycles */ \
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emith_asr(t2, sr, 12); \
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emith_move_r_imm(t3, (u32)((1ULL<<32) / (cycles)) + 1); \
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emith_mul_u64(t1, t2, t2, t3); /* multiply by 1/x */ \
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rcache_free_tmp(t3); \
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@ -260,7 +260,7 @@ static void REGPARM(3) *sh2_drc_log_entry(void *block, SH2 *sh2, u32 sr)
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printf("trace eof at %08lx\n",ftell(trace[idx]));
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exit(1);
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}
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fsh2.sr = (fsh2.sr & 0xbff) | (sh2->sr & ~0xbff);
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fsh2.sr = (fsh2.sr & 0x3ff) | (sh2->sr & ~0x3ff);
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fsh2.is_slave = idx;
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if (memcmp(&fsh2, sh2, offsetof(SH2, read8_map)) ||
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0)//memcmp(&fsh2.pdb_io_csum, &sh2->pdb_io_csum, sizeof(sh2->pdb_io_csum)))
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@ -3250,6 +3250,7 @@ static void emit_branch_linkage_code(SH2 *sh2, struct block_desc *block, int tca
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}
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static void *dr_get_pc_base(u32 pc, SH2 *sh2);
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static void sh2_smc_rm_blocks(u32 a, int len, int tcache_id, int free);
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static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
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{
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@ -3319,6 +3320,13 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
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block = dr_find_inactive_block(tcache_id, crc, base_pc, end_pc - base_pc,
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base_literals, end_literals - base_literals);
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#if (DRC_DEBUG & (256|512))
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// remove any (partial) old blocks which might get in the way, to make sure
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// the same branch targets are used in the recording/playback code. Not needed
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// normally since the SH2 code wasn't overwritten and should be the same.
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sh2_smc_rm_blocks(base_pc, end_pc - base_pc, tcache_id, 0);
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#endif
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if (block) {
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dbg(2, "== %csh2 reuse block %08x-%08x,%08x-%08x -> %p", sh2->is_slave ? 's' : 'm',
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base_pc, end_pc, base_literals, end_literals, block->entryp->tcache_ptr);
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@ -3539,7 +3547,7 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
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// if exiting a pinned loop pinned regs must be written back to ctx
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// since they are reloaded in the loop entry code
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emith_cmp_r_imm(sr, 0);
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EMITH_JMP_START(DCOND_GT);
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EMITH_JMP_START(DCOND_GE);
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rcache_save_pinned();
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if (blx_target_count < ARRAY_SIZE(blx_targets)) {
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@ -3554,7 +3562,7 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
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emith_jump(sh2_drc_exit);
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rcache_free_tmp(tmp);
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}
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EMITH_JMP_END(DCOND_GT);
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EMITH_JMP_END(DCOND_GE);
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} else
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#endif
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{
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@ -3568,10 +3576,10 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
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// blx table full, must inline exit code
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tmp = rcache_get_tmp_arg(0);
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emith_cmp_r_imm(sr, 0);
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EMITH_SJMP_START(DCOND_GT);
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emith_move_r_imm_c(DCOND_LE, tmp, pc);
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emith_jump_cond(DCOND_LE, sh2_drc_exit);
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EMITH_SJMP_END(DCOND_GT);
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EMITH_SJMP_START(DCOND_GE);
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emith_move_r_imm_c(DCOND_LT, tmp, pc);
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emith_jump_cond(DCOND_LT, sh2_drc_exit);
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EMITH_SJMP_END(DCOND_GE);
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rcache_free_tmp(tmp);
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}
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}
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@ -5627,7 +5635,7 @@ static void sh2_generate_utils(void)
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#endif
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}
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static void sh2_smc_rm_blocks(u32 a, int len, int tcache_id, u32 shift)
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static void sh2_smc_rm_blocks(u32 a, int len, int tcache_id, int free)
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{
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struct block_list **blist, *entry, *next;
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u32 mask = RAM_SIZE(tcache_id) - 1;
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@ -5635,40 +5643,43 @@ static void sh2_smc_rm_blocks(u32 a, int len, int tcache_id, u32 shift)
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u32 start_addr, end_addr;
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u32 start_lit, end_lit;
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struct block_desc *block;
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#if (DRC_DEBUG & 2)
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int removed = 0;
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#endif
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int removed = 0, rest;
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u32 _a = a;
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// ignore cache-through
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a &= wtmask;
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blist = &inval_lookup[tcache_id][(a & mask) / INVAL_PAGE_SIZE];
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entry = *blist;
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// go through the block list for this range
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while (entry != NULL) {
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next = entry->next;
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block = entry->block;
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start_addr = block->addr & wtmask;
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end_addr = start_addr + block->size;
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start_lit = block->addr_lit & wtmask;
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end_lit = start_lit + block->size_lit;
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// disable/delete block if it covers the modified address
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if ((start_addr < a+len && a < end_addr) ||
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(start_lit < a+len && a < end_lit))
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{
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dbg(2, "smc remove @%08x", a);
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end_addr = (start_lit < a+len && block->size_lit ? a : 0);
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dr_rm_block_entry(block, tcache_id, end_addr, 0);
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#if (DRC_DEBUG & 2)
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removed = 1;
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#endif
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do {
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blist = &inval_lookup[tcache_id][(a & mask) / INVAL_PAGE_SIZE];
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entry = *blist;
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// go through the block list for this range
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while (entry != NULL) {
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next = entry->next;
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block = entry->block;
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start_addr = block->addr & wtmask;
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end_addr = start_addr + block->size;
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start_lit = block->addr_lit & wtmask;
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end_lit = start_lit + block->size_lit;
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// disable/delete block if it covers the modified address
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if ((start_addr < a+len && a < end_addr) ||
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(start_lit < a+len && a < end_lit))
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{
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dbg(2, "smc remove @%08x", a);
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end_addr = (start_lit < a+len && block->size_lit ? a : 0);
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dr_rm_block_entry(block, tcache_id, end_addr, free);
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removed = 1;
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}
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entry = next;
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}
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entry = next;
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rest = INVAL_PAGE_SIZE - (a & (INVAL_PAGE_SIZE-1));
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a += rest, len -= rest;
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} while (len > 0);
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if (!removed && len <= 4) {
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dbg(2, "rm_blocks called @%08x, no work?", _a);
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return;
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}
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#if (DRC_DEBUG & 2)
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if (!removed)
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dbg(2, "rm_blocks called @%08x, no work?", a);
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#endif
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#if BRANCH_CACHE
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if (tcache_id)
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memset32(sh2s[tcache_id-1].branch_cache, -1, sizeof(sh2s[0].branch_cache)/4);
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@ -5691,12 +5702,12 @@ static void sh2_smc_rm_blocks(u32 a, int len, int tcache_id, u32 shift)
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void sh2_drc_wcheck_ram(u32 a, unsigned len, SH2 *sh2)
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{
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sh2_smc_rm_blocks(a, len, 0, SH2_DRCBLK_RAM_SHIFT);
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sh2_smc_rm_blocks(a, len, 0, 0);
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}
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void sh2_drc_wcheck_da(u32 a, unsigned len, SH2 *sh2)
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{
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sh2_smc_rm_blocks(a, len, 1 + sh2->is_slave, SH2_DRCBLK_DA_SHIFT);
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sh2_smc_rm_blocks(a, len, 1 + sh2->is_slave, 0);
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}
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int sh2_execute_drc(SH2 *sh2c, int cycles)
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@ -207,6 +207,15 @@ static int data_processing(unsigned int pc, unsigned int insn, char *buf, size_t
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snprintf(buf, buf_len, "%s%s%s %s,%s,%s%s", name, condition(insn), s, register_name(rd), register_name(rn), register_name(rm), shift(insn, tmp_buf, sizeof(tmp_buf)));
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}
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}
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else if ((insn & 0x0fb00000) == 0x03000000)
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{
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unsigned int imm;
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char *half = (insn & 0x00400000) ? "t" : "w";
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imm = (insn & 0x00000fff) | ((insn & 0x000f0000) >> 4);
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snprintf(buf, buf_len, "mov%s%s %s%s", half, condition(insn), register_name(rd), immediate(imm, 0, 1, tmp_buf, sizeof(tmp_buf)));
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}
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else
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{
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unsigned int imm;
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