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Use optimised getcf for inc/dec/adc/sbb

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This commit is contained in:
Fabian 2022-11-03 14:01:37 -06:00
parent be08d812db
commit 53cea2e7b1
1 changed files with 55 additions and 57 deletions
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112
src/rust/jit_instructions.rs
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@ -1,7 +1,7 @@
#![allow(non_snake_case)]
use codegen;
use codegen::BitSize;
use codegen::{BitSize, ConditionNegate};
use cpu::cpu::{
FLAGS_ALL, FLAGS_DEFAULT, FLAGS_MASK, FLAG_ADJUST, FLAG_CARRY, FLAG_DIRECTION, FLAG_INTERRUPT,
FLAG_IOPL, FLAG_OVERFLOW, FLAG_SUB, FLAG_VM, FLAG_ZERO, OPSIZE_8, OPSIZE_16, OPSIZE_32,
@ -1089,7 +1089,7 @@ fn gen_adc32(ctx: &mut JitContext, dest_operand: &WasmLocal, source_operand: &Lo
ctx.builder.get_local(&dest_operand);
source_operand.gen_get(ctx.builder);
ctx.builder.add_i32();
codegen::gen_getcf_unoptimised(ctx.builder);
codegen::gen_getcf(ctx, ConditionNegate::False);
ctx.builder.add_i32();
let res = ctx.builder.set_new_local();
@ -1166,7 +1166,7 @@ fn gen_sbb32(ctx: &mut JitContext, dest_operand: &WasmLocal, source_operand: &Lo
ctx.builder.get_local(&dest_operand);
source_operand.gen_get(ctx.builder);
ctx.builder.sub_i32();
codegen::gen_getcf_unoptimised(ctx.builder);
codegen::gen_getcf(ctx, ConditionNegate::False);
ctx.builder.sub_i32();
let res = ctx.builder.set_new_local();
@ -2218,44 +2218,43 @@ pub fn instr32_3D_jit(ctx: &mut JitContext, imm32: u32) {
}
fn gen_inc(ctx: &mut JitContext, dest_operand: &WasmLocal, size: i32) {
ctx.current_instruction = Instruction::Arithmetic { opsize: size };
ctx.builder.const_i32(global_pointers::flags as i32);
codegen::gen_get_flags(ctx.builder);
ctx.builder.const_i32(!1);
ctx.builder.and_i32();
codegen::gen_getcf(ctx, ConditionNegate::False);
ctx.builder.or_i32();
ctx.builder.store_aligned_i32(0);
let builder = &mut ctx.builder;
builder.const_i32(global_pointers::flags as i32);
codegen::gen_get_flags(builder);
builder.const_i32(!1);
builder.and_i32();
codegen::gen_getcf_unoptimised(builder);
builder.or_i32();
builder.store_aligned_i32(0);
builder.const_i32(global_pointers::last_op1 as i32);
builder.get_local(&dest_operand);
ctx.builder.const_i32(global_pointers::last_op1 as i32);
ctx.builder.get_local(&dest_operand);
if size == OPSIZE_8 || size == OPSIZE_16 {
builder.const_i32(if size == OPSIZE_8 { 0xFF } else { 0xFFFF });
builder.and_i32();
ctx.builder
.const_i32(if size == OPSIZE_8 { 0xFF } else { 0xFFFF });
ctx.builder.and_i32();
}
builder.store_aligned_i32(0);
ctx.builder.store_aligned_i32(0);
builder.get_local(dest_operand);
builder.const_i32(1);
builder.add_i32();
ctx.builder.get_local(dest_operand);
ctx.builder.const_i32(1);
ctx.builder.add_i32();
if size == OPSIZE_16 {
codegen::gen_set_reg16_local(builder, dest_operand);
codegen::gen_set_reg16_local(ctx.builder, dest_operand);
}
else {
builder.set_local(dest_operand);
ctx.builder.set_local(dest_operand);
}
builder.const_i32(global_pointers::last_result as i32);
builder.get_local(&dest_operand);
ctx.builder.const_i32(global_pointers::last_result as i32);
ctx.builder.get_local(&dest_operand);
if size == OPSIZE_16 {
builder.const_i32(0xFFFF);
builder.and_i32();
ctx.builder.const_i32(0xFFFF);
ctx.builder.and_i32();
}
builder.store_aligned_i32(0);
codegen::gen_set_last_op_size(builder, size);
codegen::gen_set_flags_changed(builder, FLAGS_ALL & !1);
ctx.builder.store_aligned_i32(0);
codegen::gen_set_last_op_size(ctx.builder, size);
codegen::gen_set_flags_changed(ctx.builder, FLAGS_ALL & !1);
ctx.current_instruction = Instruction::Arithmetic { opsize: size };
}
fn gen_inc16(ctx: &mut JitContext, dest_operand: &WasmLocal) {
gen_inc(ctx, dest_operand, OPSIZE_16);
@ -2265,44 +2264,43 @@ fn gen_inc32(ctx: &mut JitContext, dest_operand: &WasmLocal) {
}
fn gen_dec(ctx: &mut JitContext, dest_operand: &WasmLocal, size: i32) {
ctx.current_instruction = Instruction::Arithmetic { opsize: size };
ctx.builder.const_i32(global_pointers::flags as i32);
codegen::gen_get_flags(ctx.builder);
ctx.builder.const_i32(!1);
ctx.builder.and_i32();
codegen::gen_getcf(ctx, ConditionNegate::False);
ctx.builder.or_i32();
ctx.builder.store_aligned_i32(0);
let builder = &mut ctx.builder;
builder.const_i32(global_pointers::flags as i32);
codegen::gen_get_flags(builder);
builder.const_i32(!1);
builder.and_i32();
codegen::gen_getcf_unoptimised(builder);
builder.or_i32();
builder.store_aligned_i32(0);
builder.const_i32(global_pointers::last_op1 as i32);
builder.get_local(&dest_operand);
ctx.builder.const_i32(global_pointers::last_op1 as i32);
ctx.builder.get_local(&dest_operand);
if size == OPSIZE_8 || size == OPSIZE_16 {
builder.const_i32(if size == OPSIZE_8 { 0xFF } else { 0xFFFF });
builder.and_i32();
ctx.builder
.const_i32(if size == OPSIZE_8 { 0xFF } else { 0xFFFF });
ctx.builder.and_i32();
}
builder.store_aligned_i32(0);
ctx.builder.store_aligned_i32(0);
builder.get_local(dest_operand);
builder.const_i32(1);
builder.sub_i32();
ctx.builder.get_local(dest_operand);
ctx.builder.const_i32(1);
ctx.builder.sub_i32();
if size == OPSIZE_16 {
codegen::gen_set_reg16_local(builder, dest_operand);
codegen::gen_set_reg16_local(ctx.builder, dest_operand);
}
else {
builder.set_local(dest_operand);
ctx.builder.set_local(dest_operand);
}
builder.const_i32(global_pointers::last_result as i32);
builder.get_local(&dest_operand);
ctx.builder.const_i32(global_pointers::last_result as i32);
ctx.builder.get_local(&dest_operand);
if size == OPSIZE_16 {
builder.const_i32(0xFFFF);
builder.and_i32();
ctx.builder.const_i32(0xFFFF);
ctx.builder.and_i32();
}
builder.store_aligned_i32(0);
codegen::gen_set_last_op_size(builder, size);
codegen::gen_set_flags_changed(builder, FLAGS_ALL & !1 | FLAG_SUB);
ctx.builder.store_aligned_i32(0);
codegen::gen_set_last_op_size(ctx.builder, size);
codegen::gen_set_flags_changed(ctx.builder, FLAGS_ALL & !1 | FLAG_SUB);
ctx.current_instruction = Instruction::Arithmetic { opsize: size };
}
fn gen_dec16(ctx: &mut JitContext, dest_operand: &WasmLocal) {
gen_dec(ctx, dest_operand, OPSIZE_16)