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When compiling with CODEBLOCK_STATIC_TOP, update TOP register with immediate moves rather than add/sub.

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This commit is contained in:
SarahW 2019-01-28 17:40:28 +00:00
commit 6e5336ae56
5 changed files with 43 additions and 32 deletions
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21
src/codegen_ops_helpers.h
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@ -46,11 +46,24 @@ static inline void SUB_SP(ir_data_t *ir, int offset)
uop_SUB_IMM(ir, IREG_SP, IREG_SP, offset);
}
static inline void fpu_POP(ir_data_t *ir)
static inline void fpu_POP(codeblock_t *block, ir_data_t *ir)
{
uop_ADD_IMM(ir, IREG_FPU_TOP, IREG_FPU_TOP, 1);
if (block->flags & CODEBLOCK_STATIC_TOP)
uop_MOV_IMM(ir, IREG_FPU_TOP, cpu_state.TOP + 1);
else
uop_ADD_IMM(ir, IREG_FPU_TOP, IREG_FPU_TOP, 1);
}
static inline void fpu_PUSH(ir_data_t *ir)
static inline void fpu_POP2(codeblock_t *block, ir_data_t *ir)
{
uop_SUB_IMM(ir, IREG_FPU_TOP, IREG_FPU_TOP, 1);
if (block->flags & CODEBLOCK_STATIC_TOP)
uop_MOV_IMM(ir, IREG_FPU_TOP, cpu_state.TOP + 2);
else
uop_ADD_IMM(ir, IREG_FPU_TOP, IREG_FPU_TOP, 2);
}
static inline void fpu_PUSH(codeblock_t *block, ir_data_t *ir)
{
if (block->flags & CODEBLOCK_STATIC_TOP)
uop_MOV_IMM(ir, IREG_FPU_TOP, cpu_state.TOP - 1);
else
uop_SUB_IMM(ir, IREG_FPU_TOP, IREG_FPU_TOP, 1);
}