ethonion10/v86
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small changes for dynamic translation

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copy 2014-11-01 13:59:32 +01:00
commit 80d4541152
2 changed files with 25 additions and 5 deletions
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26
src/cpu.macro.js
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@ -885,7 +885,7 @@ v86.prototype.cr0_changed = function(old_cr0)
this.full_clear_tlb();
}
if(this.translator !== undefined && (this.cr0 ^ old_cr0) & 1)
if(OP_TRANSLATION && (this.cr0 ^ old_cr0) & 1)
{
this.translator.clear_cache();
}
@ -1817,6 +1817,21 @@ v86.prototype.seg_prefix = function(seg)
this.segment_prefix = SEG_PREFIX_NONE;
};
v86.prototype.get_seg_prefix_ds = function()
{
return this.get_seg_prefix(reg_ds);
};
v86.prototype.get_seg_prefix_ss = function()
{
return this.get_seg_prefix(reg_ss);
};
v86.prototype.get_seg_prefix_cs = function()
{
return this.get_seg_prefix(reg_cs);
};
/**
* Get segment base by prefix or default
* @param {number} default_segment
@ -1976,7 +1991,7 @@ v86.prototype.update_cs_size = function(new_size)
this.update_operand_size();
this.update_address_size();
if(this.translator !== undefined)
if(OP_TRANSLATION)
{
this.translator.clear_cache();
}
@ -2131,7 +2146,7 @@ v86.prototype.switch_seg = function(reg, selector)
{
dbg_assert(reg >= 0 && reg <= 5);
dbg_assert(typeof selector === "number" && selector < 0x10000 && selector >= 0);
if(reg === reg_cs)
{
this.protected_mode = (this.cr0 & CR0_PE) === CR0_PE;
@ -2270,6 +2285,11 @@ v86.prototype.switch_seg = function(reg, selector)
this.segment_limits[reg] = info.effective_limit;
//this.segment_infos[reg] = 0; // TODO
if(OP_TRANSLATION && (reg === reg_ds || reg === reg_ss) && info.base !== this.segment_offsets[reg])
{
this.translator.clear_cache();
}
this.segment_offsets[reg] = info.base;
this.sreg[reg] = selector;

4
src/modrm.macro.js
View file

@ -15,8 +15,8 @@ v86.prototype.modrm_table32 = Array(0xC0);
v86.prototype.sib_table = Array(0x100);
#define ds cpu.get_seg_prefix(reg_ds)
#define ss cpu.get_seg_prefix(reg_ss)
#define ds cpu.get_seg_prefix_ds()
#define ss cpu.get_seg_prefix_ss()
#define eax cpu.reg32s[reg_eax]
#define ecx cpu.reg32s[reg_ecx]