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Old recompiler improvements: limited in-block IRQ checking to floppy IRQ's only, rewrote the GPF handlers in ASM, and changed the recompiled INC and DEC instructions to actually use INC and DEC on host. Also removed the keyboard_at.c timer hack.

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OBattler
2020-07-15 05:03:19 +02:00
parent 10e16249fd
commit ec74ffb6a5
8 changed files with 81 additions and 12 deletions
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23
src/codegen/codegen_ops_x86-64.h
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@@ -2967,6 +2967,29 @@ static inline void SUB_HOST_REG_IMM(int host_reg, uint32_t imm)
addlong(imm);
}
static inline void INC_HOST_REG_W(int host_reg)
{
addbyte(0x66); /*DECW host_reg*/
addbyte(0xff);
addbyte(0xc0 | (host_reg & 7));
}
static inline void INC_HOST_REG(int host_reg)
{
addbyte(0xff); /*DECL host_reg*/
addbyte(0xc0 | (host_reg & 7));
}
static inline void DEC_HOST_REG_W(int host_reg)
{
addbyte(0x66); /*DECW host_reg*/
addbyte(0xff);
addbyte(0xc8 | (host_reg & 7));
}
static inline void DEC_HOST_REG(int host_reg)
{
addbyte(0xff); /*DECL host_reg*/
addbyte(0xc8 | (host_reg & 7));
}
static inline int CMP_HOST_REG_IMM_B(int host_reg, uint8_t imm)
{
if (host_reg & 8)