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Tweak flat DS/SS dynarec optimisation, should reduce block churn when routines are called both with and without flat DS/SS.

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Fixed incorrect STACK32 flag when entering V86 mode that was hidden by block churn.
Protected and V86 mode status now considered when selecting block.
This commit is contained in:
SarahW 2017-11-15 21:55:27 +00:00
commit 717d815604
10 changed files with 108 additions and 78 deletions
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6
src/codegen_x86.c
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@ -1424,6 +1424,8 @@ void codegen_block_start_recompile(codeblock_t *block)
if (block->pc != cs + cpu_state.pc || block->was_recompiled)
fatal("Recompile to used block!\n");
block->status = cpu_cur_status;
block_pos = BLOCK_GPF_OFFSET;
addbyte(0xc7); /*MOV [ESP],0*/
addbyte(0x04);
@ -1483,8 +1485,8 @@ void codegen_block_start_recompile(codeblock_t *block)
block->TOP = cpu_state.TOP;
block->was_recompiled = 1;
codegen_flat_ds = cpu_cur_status & CPU_STATUS_FLATDS;
codegen_flat_ss = cpu_cur_status & CPU_STATUS_FLATSS;
codegen_flat_ds = !(cpu_cur_status & CPU_STATUS_NOTFLATDS);
codegen_flat_ss = !(cpu_cur_status & CPU_STATUS_NOTFLATSS);
}
void codegen_block_remove()