RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-05 15:27:46 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

UIQ3 bugfixes, SVP drc indirect jumps, stuff

Browse source 
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@572 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-08-24 09:33:12 +00:00
parent 02ba8788a0
commit f8af96349e
29 changed files with 193 additions and 157 deletions
Download patch file Download diff file Expand all files Collapse all files

27
Pico/carthw/svp/compiler.c
View file

@ -1663,7 +1663,7 @@ static void emit_block_prologue(void)
// check if there are enough cycles..
// note: r0 must contain PC of current block
EOP_CMP_IMM(11,0,0); // cmp r11, #0
emit_call(A_COND_LE, ssp_drc_end);
emit_jump(A_COND_LE, ssp_drc_end);
}
/* cond:
@ -1684,20 +1684,29 @@ static void emit_block_epilogue(int cycles, int cond, int pc, int end_pc)
if (target != NULL)
emit_jump(A_COND_AL, target);
else {
emit_jump(A_COND_AL, ssp_drc_next);
// cause the next block to be emitted over jump instrction
tcache_ptr--;
int ops = emit_jump(A_COND_AL, ssp_drc_next);
// cause the next block to be emitted over jump instruction
tcache_ptr -= ops;
}
}
else {
u32 *target1 = (pc < 0x400) ? ssp_block_table_iram[ssp->drc.iram_context][pc] : ssp_block_table[pc];
u32 *target1 = (pc < 0x400) ? ssp_block_table_iram[ssp->drc.iram_context][pc] : ssp_block_table[pc];
u32 *target2 = (end_pc < 0x400) ? ssp_block_table_iram[ssp->drc.iram_context][end_pc] : ssp_block_table[end_pc];
if (target1 != NULL)
emit_jump(cond, target1);
else emit_call(cond, ssp_drc_next_patch);
if (target2 != NULL)
emit_jump(tr_neg_cond(cond), target2); // neg_cond, to be able to swap jumps if needed
else emit_call(tr_neg_cond(cond), ssp_drc_next_patch);
#ifndef __EPOC32__
// emit patchable branches
if (target1 == NULL)
emit_call(cond, ssp_drc_next_patch);
if (target2 == NULL)
emit_call(tr_neg_cond(cond), ssp_drc_next_patch);
#else
// won't patch indirect jumps
if (target1 == NULL || target2 == NULL)
emit_jump(A_COND_AL, ssp_drc_next);
#endif
}
}
@ -1708,6 +1717,7 @@ void *ssp_translate_block(int pc)
int ret, end_cond = A_COND_AL, jump_pc = -1;
//printf("translate %04x -> %04x\n", pc<<1, (tcache_ptr-tcache)<<2);
block_start = tcache_ptr;
known_regb = 0;
dirty_regb = KRREG_P;
@ -1748,7 +1758,7 @@ void *ssp_translate_block(int pc)
emit_block_epilogue(ccount, end_cond, jump_pc, pc);
if (tcache_ptr - tcache > SSP_TCACHE_SIZE/4) {
elprintf(EL_ANOMALY, "tcache overflow!\n");
elprintf(EL_ANOMALY|EL_STATUS|EL_SVP, "tcache overflow!\n");
fflush(stdout);
exit(1);
}
@ -1825,6 +1835,7 @@ void ssp1601_dyn_reset(ssp1601_t *ssp)
memset(svp->iram_rom, 0, 0x800);
}
void ssp1601_dyn_run(int cycles)
{
if (ssp->emu_status & SSP_WAIT_MASK) return;