Eliminate unnecessary shifts
This commit is contained in:
Jeff Parsons
jeffpar
parent
7cdf097c8d
commit
06dfd59ad6
2 changed files with 57 additions and 57 deletions
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@ -285,7 +285,7 @@ function genSIB(sib) {
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print(" */");
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print(" function " + sFunc + "(mod) {");
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var sBase = (base == 5? "(mod? this.reg" + aBase[base] + " : this.getIPWord())" : "this.reg" + aBase[base]);
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if (index != 4) sBase += " + (this.reg" + (aIndex[index] + " << " + scale) + ")";
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if (index != 4) sBase += " + " + (scale? ("(this.reg" + aIndex[index] + " << " + scale + ")") : ("this.reg" + aIndex[index]));
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print(" return " + sBase + ";");
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print(" }" + (sib < 255? "," : ""));
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}
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@ -46,7 +46,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB00(mod) {
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return this.regEAX + (this.regEAX << 0);
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return this.regEAX + this.regEAX;
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},
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/**
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* opModSIB01(): scale=00 (1) index=000 (EAX) base=001 (ECX)
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@ -55,7 +55,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB01(mod) {
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return this.regECX + (this.regEAX << 0);
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return this.regECX + this.regEAX;
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},
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/**
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* opModSIB02(): scale=00 (1) index=000 (EAX) base=010 (EDX)
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@ -64,7 +64,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB02(mod) {
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return this.regEDX + (this.regEAX << 0);
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return this.regEDX + this.regEAX;
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},
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/**
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* opModSIB03(): scale=00 (1) index=000 (EAX) base=011 (EBX)
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@ -73,7 +73,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB03(mod) {
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return this.regEBX + (this.regEAX << 0);
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return this.regEBX + this.regEAX;
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},
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/**
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* opModSIB04(): scale=00 (1) index=000 (EAX) base=100 (ESP)
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@ -82,7 +82,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB04(mod) {
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return this.regESP + (this.regEAX << 0);
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return this.regESP + this.regEAX;
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},
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/**
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* opModSIB05(): scale=00 (1) index=000 (EAX) base=101 (mod? EBP : disp32)
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@ -91,7 +91,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB05(mod) {
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return (mod? this.regEBP : this.getIPWord()) + (this.regEAX << 0);
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return (mod? this.regEBP : this.getIPWord()) + this.regEAX;
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},
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/**
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* opModSIB06(): scale=00 (1) index=000 (EAX) base=110 (ESI)
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@ -100,7 +100,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB06(mod) {
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return this.regESI + (this.regEAX << 0);
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return this.regESI + this.regEAX;
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},
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/**
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* opModSIB07(): scale=00 (1) index=000 (EAX) base=111 (EDI)
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@ -109,7 +109,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB07(mod) {
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return this.regEDI + (this.regEAX << 0);
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return this.regEDI + this.regEAX;
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},
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/**
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* opModSIB08(): scale=00 (1) index=001 (ECX) base=000 (EAX)
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@ -118,7 +118,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB08(mod) {
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return this.regEAX + (this.regECX << 0);
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return this.regEAX + this.regECX;
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},
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/**
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* opModSIB09(): scale=00 (1) index=001 (ECX) base=001 (ECX)
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@ -127,7 +127,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB09(mod) {
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return this.regECX + (this.regECX << 0);
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return this.regECX + this.regECX;
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},
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/**
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* opModSIB0A(): scale=00 (1) index=001 (ECX) base=010 (EDX)
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@ -136,7 +136,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB0A(mod) {
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return this.regEDX + (this.regECX << 0);
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return this.regEDX + this.regECX;
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},
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/**
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* opModSIB0B(): scale=00 (1) index=001 (ECX) base=011 (EBX)
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@ -145,7 +145,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB0B(mod) {
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return this.regEBX + (this.regECX << 0);
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return this.regEBX + this.regECX;
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},
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/**
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* opModSIB0C(): scale=00 (1) index=001 (ECX) base=100 (ESP)
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@ -154,7 +154,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB0C(mod) {
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return this.regESP + (this.regECX << 0);
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return this.regESP + this.regECX;
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},
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/**
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* opModSIB0D(): scale=00 (1) index=001 (ECX) base=101 (mod? EBP : disp32)
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@ -163,7 +163,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB0D(mod) {
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return (mod? this.regEBP : this.getIPWord()) + (this.regECX << 0);
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return (mod? this.regEBP : this.getIPWord()) + this.regECX;
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},
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/**
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* opModSIB0E(): scale=00 (1) index=001 (ECX) base=110 (ESI)
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@ -172,7 +172,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB0E(mod) {
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return this.regESI + (this.regECX << 0);
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return this.regESI + this.regECX;
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},
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/**
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* opModSIB0F(): scale=00 (1) index=001 (ECX) base=111 (EDI)
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@ -181,7 +181,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB0F(mod) {
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return this.regEDI + (this.regECX << 0);
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return this.regEDI + this.regECX;
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},
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/**
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* opModSIB10(): scale=00 (1) index=010 (EDX) base=000 (EAX)
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@ -190,7 +190,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB10(mod) {
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return this.regEAX + (this.regEDX << 0);
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return this.regEAX + this.regEDX;
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},
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/**
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* opModSIB11(): scale=00 (1) index=010 (EDX) base=001 (ECX)
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@ -199,7 +199,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB11(mod) {
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return this.regECX + (this.regEDX << 0);
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return this.regECX + this.regEDX;
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},
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/**
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* opModSIB12(): scale=00 (1) index=010 (EDX) base=010 (EDX)
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@ -208,7 +208,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB12(mod) {
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return this.regEDX + (this.regEDX << 0);
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return this.regEDX + this.regEDX;
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},
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/**
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* opModSIB13(): scale=00 (1) index=010 (EDX) base=011 (EBX)
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@ -217,7 +217,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB13(mod) {
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return this.regEBX + (this.regEDX << 0);
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return this.regEBX + this.regEDX;
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},
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/**
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* opModSIB14(): scale=00 (1) index=010 (EDX) base=100 (ESP)
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@ -226,7 +226,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB14(mod) {
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return this.regESP + (this.regEDX << 0);
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return this.regESP + this.regEDX;
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},
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/**
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* opModSIB15(): scale=00 (1) index=010 (EDX) base=101 (mod? EBP : disp32)
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@ -235,7 +235,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB15(mod) {
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return (mod? this.regEBP : this.getIPWord()) + (this.regEDX << 0);
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return (mod? this.regEBP : this.getIPWord()) + this.regEDX;
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},
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/**
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* opModSIB16(): scale=00 (1) index=010 (EDX) base=110 (ESI)
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@ -244,7 +244,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB16(mod) {
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return this.regESI + (this.regEDX << 0);
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return this.regESI + this.regEDX;
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},
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/**
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* opModSIB17(): scale=00 (1) index=010 (EDX) base=111 (EDI)
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@ -253,7 +253,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB17(mod) {
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return this.regEDI + (this.regEDX << 0);
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return this.regEDI + this.regEDX;
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},
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/**
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* opModSIB18(): scale=00 (1) index=011 (EBX) base=000 (EAX)
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@ -262,7 +262,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB18(mod) {
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return this.regEAX + (this.regEBX << 0);
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return this.regEAX + this.regEBX;
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},
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/**
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* opModSIB19(): scale=00 (1) index=011 (EBX) base=001 (ECX)
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@ -271,7 +271,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB19(mod) {
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return this.regECX + (this.regEBX << 0);
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return this.regECX + this.regEBX;
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},
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/**
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* opModSIB1A(): scale=00 (1) index=011 (EBX) base=010 (EDX)
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@ -280,7 +280,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB1A(mod) {
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return this.regEDX + (this.regEBX << 0);
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return this.regEDX + this.regEBX;
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},
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/**
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* opModSIB1B(): scale=00 (1) index=011 (EBX) base=011 (EBX)
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@ -289,7 +289,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB1B(mod) {
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return this.regEBX + (this.regEBX << 0);
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return this.regEBX + this.regEBX;
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},
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/**
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* opModSIB1C(): scale=00 (1) index=011 (EBX) base=100 (ESP)
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@ -298,7 +298,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB1C(mod) {
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return this.regESP + (this.regEBX << 0);
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return this.regESP + this.regEBX;
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},
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/**
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* opModSIB1D(): scale=00 (1) index=011 (EBX) base=101 (mod? EBP : disp32)
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@ -307,7 +307,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB1D(mod) {
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return (mod? this.regEBP : this.getIPWord()) + (this.regEBX << 0);
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return (mod? this.regEBP : this.getIPWord()) + this.regEBX;
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},
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/**
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* opModSIB1E(): scale=00 (1) index=011 (EBX) base=110 (ESI)
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@ -316,7 +316,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB1E(mod) {
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return this.regESI + (this.regEBX << 0);
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return this.regESI + this.regEBX;
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},
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/**
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* opModSIB1F(): scale=00 (1) index=011 (EBX) base=111 (EDI)
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@ -325,7 +325,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB1F(mod) {
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return this.regEDI + (this.regEBX << 0);
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return this.regEDI + this.regEBX;
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},
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/**
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* opModSIB20(): scale=00 (1) index=100 (none) base=000 (EAX)
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@ -406,7 +406,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB28(mod) {
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return this.regEAX + (this.regEBP << 0);
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return this.regEAX + this.regEBP;
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},
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/**
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* opModSIB29(): scale=00 (1) index=101 (EBP) base=001 (ECX)
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@ -415,7 +415,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB29(mod) {
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return this.regECX + (this.regEBP << 0);
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return this.regECX + this.regEBP;
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},
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/**
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* opModSIB2A(): scale=00 (1) index=101 (EBP) base=010 (EDX)
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@ -424,7 +424,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB2A(mod) {
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return this.regEDX + (this.regEBP << 0);
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return this.regEDX + this.regEBP;
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},
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/**
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* opModSIB2B(): scale=00 (1) index=101 (EBP) base=011 (EBX)
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@ -433,7 +433,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB2B(mod) {
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return this.regEBX + (this.regEBP << 0);
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return this.regEBX + this.regEBP;
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},
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/**
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* opModSIB2C(): scale=00 (1) index=101 (EBP) base=100 (ESP)
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@ -442,7 +442,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB2C(mod) {
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return this.regESP + (this.regEBP << 0);
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return this.regESP + this.regEBP;
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},
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/**
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* opModSIB2D(): scale=00 (1) index=101 (EBP) base=101 (mod? EBP : disp32)
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@ -451,7 +451,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB2D(mod) {
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return (mod? this.regEBP : this.getIPWord()) + (this.regEBP << 0);
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return (mod? this.regEBP : this.getIPWord()) + this.regEBP;
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},
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/**
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* opModSIB2E(): scale=00 (1) index=101 (EBP) base=110 (ESI)
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@ -460,7 +460,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB2E(mod) {
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return this.regESI + (this.regEBP << 0);
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return this.regESI + this.regEBP;
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},
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/**
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* opModSIB2F(): scale=00 (1) index=101 (EBP) base=111 (EDI)
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@ -469,7 +469,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB2F(mod) {
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return this.regEDI + (this.regEBP << 0);
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return this.regEDI + this.regEBP;
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},
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/**
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* opModSIB30(): scale=00 (1) index=110 (ESI) base=000 (EAX)
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@ -478,7 +478,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB30(mod) {
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return this.regEAX + (this.regESI << 0);
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return this.regEAX + this.regESI;
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},
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/**
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* opModSIB31(): scale=00 (1) index=110 (ESI) base=001 (ECX)
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@ -487,7 +487,7 @@ X86ModSIB.aOpModSIB = [
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* @param {number} mod
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*/
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function opModSIB31(mod) {
|
||||
return this.regECX + (this.regESI << 0);
|
||||
return this.regECX + this.regESI;
|
||||
},
|
||||
/**
|
||||
* opModSIB32(): scale=00 (1) index=110 (ESI) base=010 (EDX)
|
||||
|
|
@ -496,7 +496,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB32(mod) {
|
||||
return this.regEDX + (this.regESI << 0);
|
||||
return this.regEDX + this.regESI;
|
||||
},
|
||||
/**
|
||||
* opModSIB33(): scale=00 (1) index=110 (ESI) base=011 (EBX)
|
||||
|
|
@ -505,7 +505,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB33(mod) {
|
||||
return this.regEBX + (this.regESI << 0);
|
||||
return this.regEBX + this.regESI;
|
||||
},
|
||||
/**
|
||||
* opModSIB34(): scale=00 (1) index=110 (ESI) base=100 (ESP)
|
||||
|
|
@ -514,7 +514,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB34(mod) {
|
||||
return this.regESP + (this.regESI << 0);
|
||||
return this.regESP + this.regESI;
|
||||
},
|
||||
/**
|
||||
* opModSIB35(): scale=00 (1) index=110 (ESI) base=101 (mod? EBP : disp32)
|
||||
|
|
@ -523,7 +523,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB35(mod) {
|
||||
return (mod? this.regEBP : this.getIPWord()) + (this.regESI << 0);
|
||||
return (mod? this.regEBP : this.getIPWord()) + this.regESI;
|
||||
},
|
||||
/**
|
||||
* opModSIB36(): scale=00 (1) index=110 (ESI) base=110 (ESI)
|
||||
|
|
@ -532,7 +532,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB36(mod) {
|
||||
return this.regESI + (this.regESI << 0);
|
||||
return this.regESI + this.regESI;
|
||||
},
|
||||
/**
|
||||
* opModSIB37(): scale=00 (1) index=110 (ESI) base=111 (EDI)
|
||||
|
|
@ -541,7 +541,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB37(mod) {
|
||||
return this.regEDI + (this.regESI << 0);
|
||||
return this.regEDI + this.regESI;
|
||||
},
|
||||
/**
|
||||
* opModSIB38(): scale=00 (1) index=111 (EDI) base=000 (EAX)
|
||||
|
|
@ -550,7 +550,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB38(mod) {
|
||||
return this.regEAX + (this.regEDI << 0);
|
||||
return this.regEAX + this.regEDI;
|
||||
},
|
||||
/**
|
||||
* opModSIB39(): scale=00 (1) index=111 (EDI) base=001 (ECX)
|
||||
|
|
@ -559,7 +559,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB39(mod) {
|
||||
return this.regECX + (this.regEDI << 0);
|
||||
return this.regECX + this.regEDI;
|
||||
},
|
||||
/**
|
||||
* opModSIB3A(): scale=00 (1) index=111 (EDI) base=010 (EDX)
|
||||
|
|
@ -568,7 +568,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB3A(mod) {
|
||||
return this.regEDX + (this.regEDI << 0);
|
||||
return this.regEDX + this.regEDI;
|
||||
},
|
||||
/**
|
||||
* opModSIB3B(): scale=00 (1) index=111 (EDI) base=011 (EBX)
|
||||
|
|
@ -577,7 +577,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB3B(mod) {
|
||||
return this.regEBX + (this.regEDI << 0);
|
||||
return this.regEBX + this.regEDI;
|
||||
},
|
||||
/**
|
||||
* opModSIB3C(): scale=00 (1) index=111 (EDI) base=100 (ESP)
|
||||
|
|
@ -586,7 +586,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB3C(mod) {
|
||||
return this.regESP + (this.regEDI << 0);
|
||||
return this.regESP + this.regEDI;
|
||||
},
|
||||
/**
|
||||
* opModSIB3D(): scale=00 (1) index=111 (EDI) base=101 (mod? EBP : disp32)
|
||||
|
|
@ -595,7 +595,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB3D(mod) {
|
||||
return (mod? this.regEBP : this.getIPWord()) + (this.regEDI << 0);
|
||||
return (mod? this.regEBP : this.getIPWord()) + this.regEDI;
|
||||
},
|
||||
/**
|
||||
* opModSIB3E(): scale=00 (1) index=111 (EDI) base=110 (ESI)
|
||||
|
|
@ -604,7 +604,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB3E(mod) {
|
||||
return this.regESI + (this.regEDI << 0);
|
||||
return this.regESI + this.regEDI;
|
||||
},
|
||||
/**
|
||||
* opModSIB3F(): scale=00 (1) index=111 (EDI) base=111 (EDI)
|
||||
|
|
@ -613,7 +613,7 @@ X86ModSIB.aOpModSIB = [
|
|||
* @param {number} mod
|
||||
*/
|
||||
function opModSIB3F(mod) {
|
||||
return this.regEDI + (this.regEDI << 0);
|
||||
return this.regEDI + this.regEDI;
|
||||
},
|
||||
/**
|
||||
* opModSIB40(): scale=01 (2) index=000 (EAX) base=000 (EAX)
|
||||
|
|
|
|||
Loading…
Reference in a new issue