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Use get_eflags_no_arith over flags[0] (minor performance)

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Fabian 2018-12-10 09:37:40 -06:00
parent 2837ccd06b
commit 2c23ffc2cf
2 changed files with 8 additions and 4 deletions
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9
src/cpu.js
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@ -263,6 +263,7 @@ CPU.prototype.wasm_patch = function(wm)
this.getiopl = get_import("getiopl");
this.vm86_mode = get_import("vm86_mode");
this.get_eflags = get_import("get_eflags");
this.get_eflags_no_arith = get_import("get_eflags_no_arith");
this.update_eflags = get_import("update_eflags");
this.trigger_gp_non_raising = get_import("trigger_gp_non_raising");
@ -1534,7 +1535,7 @@ CPU.prototype.dbg_assert = function(x)
CPU.prototype.hlt_loop = function()
{
if(this.flags[0] & flag_interrupt)
if(this.get_eflags_no_arith() & flag_interrupt)
{
//dbg_log("In HLT loop", LOG_CPU);
@ -2341,7 +2342,7 @@ CPU.prototype.hlt_op = function()
return;
}
if((this.flags[0] & flag_interrupt) === 0)
if((this.get_eflags_no_arith() & flag_interrupt) === 0)
{
// execution can never resume (until NMIs are supported)
this.bus.send("cpu-event-halt");
@ -2374,7 +2375,7 @@ CPU.prototype.handle_irqs = function()
{
//dbg_assert(this.prefixes[0] === 0);
if(this.flags[0] & flag_interrupt)
if(this.get_eflags_no_arith() & flag_interrupt)
{
this.pic_acknowledge();
}
@ -2382,7 +2383,7 @@ CPU.prototype.handle_irqs = function()
CPU.prototype.pic_acknowledge = function()
{
dbg_assert(this.flags[0] & flag_interrupt);
dbg_assert(this.get_eflags_no_arith() & flag_interrupt);
if(this.devices.pic)
{

3
src/rust/cpu2/cpu.rs
View file

@ -1010,6 +1010,9 @@ pub unsafe fn get_eflags() -> i32 {
| (getof() as i32) << 11;
}
#[no_mangle]
pub unsafe fn get_eflags_no_arith() -> i32 { return *flags; }
pub unsafe fn translate_address_read(address: i32) -> OrPageFault<u32> {
let base: i32 = (address as u32 >> 12) as i32;
let entry: i32 = *tlb_data.offset(base as isize);