From 4173aaca3132958a9c10b71634981cdc101fc544 Mon Sep 17 00:00:00 2001
From: Jeff Parsons <Jeff@pcjs.org>
Date: Thu, 21 Apr 2016 17:06:26 -0700
Subject: [PATCH] More 8080 opcodes

---
 modules/pc8080/lib/cpuops.js         | 235 +++++++++++++++++++++-
 modules/pc8080/lib/cpusim.js         |  19 +-
 versions/pc8080/1.21.7/pc8080-dbg.js | 286 ++++++++++++++-------------
 versions/pc8080/1.21.7/pc8080.js     | 155 ++++++++-------
 4 files changed, 458 insertions(+), 237 deletions(-)

diff --git a/modules/pc8080/lib/cpuops.js b/modules/pc8080/lib/cpuops.js
index ca233b01c..951a97bb9 100644
--- a/modules/pc8080/lib/cpuops.js
+++ b/modules/pc8080/lib/cpuops.js
@@ -121,9 +121,9 @@ CPUDef.opMVIB = function()
  */
 CPUDef.opRLC = function()
 {
-    var b = this.regA << 1;
-    this.regA = (b & 0xff) | (b >> 8);
-    this.resultZeroCarry = (this.resultZeroCarry & 0xff) | (b & 0x100);
+    var carry = this.regA << 1;
+    this.regA = (carry & 0xff) | (carry >> 8);
+    this.resultZeroCarry = (this.resultZeroCarry & 0xff) | (carry & 0x100);
     this.nStepCycles -= 4;
 };
 
@@ -151,6 +151,223 @@ CPUDef.opLDAXB = function()
     this.nStepCycles -= 7;
 };
 
+/**
+ * op=0x0B (DCX B)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opDCXB = function()
+{
+    this.setBC(this.getBC() - 1);
+    this.nStepCycles -= 5;
+};
+
+/**
+ * op=0x0C (INR C)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opINRC = function()
+{
+    this.regC = this.incByte(this.regC);
+    this.nStepCycles -= 5;
+};
+
+/**
+ * op=0x0D (DCR C)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opDCRC = function()
+{
+    this.regC = this.decByte(this.regC);
+    this.nStepCycles -= 5;
+};
+
+/**
+ * op=0x0E (MVI C,d8)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opMVIC = function()
+{
+    this.regC = this.getPCByte();
+    this.nStepCycles -= 7;
+};
+
+/**
+ * op=0x0F (RRC)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opRRC = function()
+{
+    var carry = (this.regA << 8) & 0x100;
+    this.regA = (carry | this.regA) >> 1;
+    this.resultZeroCarry = (this.resultZeroCarry & 0xff) | carry;
+    this.nStepCycles -= 4;
+};
+
+/**
+ * op=0x11 (LXI D,d16)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opLXID = function()
+{
+    this.setDE(this.getPCWord());
+    this.nStepCycles -= 10;
+};
+
+/**
+ * op=0x12 (STAX D)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opSTAXD = function()
+{
+    this.setByte(this.getDE(), this.regA);
+    this.nStepCycles -= 7;
+};
+
+/**
+ * op=0x13 (INX D)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opINXD = function()
+{
+    this.setDE(this.getDE() + 1);
+    this.nStepCycles -= 5;
+};
+
+/**
+ * op=0x14 (INR D)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opINRD = function()
+{
+    this.regD = this.incByte(this.regD);
+    this.nStepCycles -= 5;
+};
+
+/**
+ * op=0x15 (DCR D)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opDCRD = function()
+{
+    this.regD = this.decByte(this.regD);
+    this.nStepCycles -= 5;
+};
+
+/**
+ * op=0x16 (MVI D,d8)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opMVID = function()
+{
+    this.regD = this.getPCByte();
+    this.nStepCycles -= 7;
+};
+
+/**
+ * op=0x17 (RAL)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opRAL = function()
+{
+    var carry = this.regA << 1;
+    this.regA = (carry & 0xff) | (this.resultZeroCarry >> 8);
+    this.resultZeroCarry = (this.resultZeroCarry & 0xff) | (carry & 0x100);
+    this.nStepCycles -= 4;
+};
+
+/**
+ * op=0x19 (DAD D)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opDADD = function()
+{
+    var w;
+    this.setHL(w = this.getHL() + this.getDE());
+    this.resultZeroCarry = (this.resultZeroCarry & 0xff) | ((w >> 8) & 0x100);
+    this.nStepCycles -= 10;
+};
+
+/**
+ * op=0x1A (LDAX D)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opLDAXD = function()
+{
+    this.regA = this.getByte(this.getDE());
+    this.nStepCycles -= 7;
+};
+
+/**
+ * op=0x1B (DCX D)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opDCXD = function()
+{
+    this.setDE(this.getDE() - 1);
+    this.nStepCycles -= 5;
+};
+
+/**
+ * op=0x1C (INR E)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opINRE = function()
+{
+    this.regE = this.incByte(this.regE);
+    this.nStepCycles -= 5;
+};
+
+/**
+ * op=0x1D (DCR E)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opDCRE = function()
+{
+    this.regE = this.decByte(this.regE);
+    this.nStepCycles -= 5;
+};
+
+/**
+ * op=0x1E (MVI E,d8)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opMVIE = function()
+{
+    this.regE = this.getPCByte();
+    this.nStepCycles -= 7;
+};
+
+/**
+ * op=0x1F (RAR)
+ *
+ * @this {CPUSim}
+ */
+CPUDef.opRAR = function()
+{
+    var carry = (this.regA << 8) & 0x100;
+    this.regA = ((this.resultZeroCarry & 0x100) | this.regA) >> 1;
+    this.resultZeroCarry = (this.resultZeroCarry & 0xff) | carry;
+    this.nStepCycles -= 4;
+};
+
 /**
  * opTBD()
  *
@@ -173,12 +390,12 @@ CPUDef.opTBD = function()
 CPUDef.aOps = [
     /* 0x00-0x03 */ CPUDef.opNOP,   CPUDef.opLXIB,  CPUDef.opSTAXB, CPUDef.opINXB,
     /* 0x04-0x07 */ CPUDef.opINRB,  CPUDef.opDCRB,  CPUDef.opMVIB,  CPUDef.opRLC,
-    /* 0x08-0x0B */ CPUDef.opNOP,   CPUDef.opDADB,  CPUDef.opLDAXB, CPUDef.opTBD,
-    /* 0x0C-0x0F */ CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,
-    /* 0x10-0x13 */ CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,
-    /* 0x14-0x17 */ CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,
-    /* 0x18-0x1B */ CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,
-    /* 0x1C-0x1F */ CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,
+    /* 0x08-0x0B */ CPUDef.opNOP,   CPUDef.opDADB,  CPUDef.opLDAXB, CPUDef.opDCXB,
+    /* 0x0C-0x0F */ CPUDef.opINRC,  CPUDef.opDCRC,  CPUDef.opMVIC,  CPUDef.opRRC,
+    /* 0x10-0x13 */ CPUDef.opNOP,   CPUDef.opLXID,  CPUDef.opSTAXD, CPUDef.opINXD,
+    /* 0x14-0x17 */ CPUDef.opINRD,  CPUDef.opDCRD,  CPUDef.opMVID,  CPUDef.opRAL,
+    /* 0x18-0x1B */ CPUDef.opNOP,   CPUDef.opDADD,  CPUDef.opLDAXD, CPUDef.opDCXD,
+    /* 0x1C-0x1F */ CPUDef.opINRE,  CPUDef.opDCRE,  CPUDef.opMVIE,  CPUDef.opRAR,
     /* 0x20-0x23 */ CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,
     /* 0x24-0x27 */ CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,
     /* 0x28-0x2B */ CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,   CPUDef.opTBD,
diff --git a/modules/pc8080/lib/cpusim.js b/modules/pc8080/lib/cpusim.js
index 6afaf34b2..afc620e51 100644
--- a/modules/pc8080/lib/cpusim.js
+++ b/modules/pc8080/lib/cpusim.js
@@ -345,12 +345,11 @@ CPUSim.prototype.setBinding = function(sHTMLType, sBinding, control, sValue)
     case "SP":
     case "PC":
     case "F":
-    case "CF":
-    case "PF":
-    case "AF":
-    case "ZF":
     case "SF":
-    case "VF":
+    case "ZF":
+    case "AF":
+    case "PF":
+    case "CF":
         this.bindings[sBinding] = control;
         this.cLiveRegs++;
         fBound = true;
@@ -915,11 +914,11 @@ CPUSim.prototype.updateStatus = function(fForce)
             this.updateReg("PC", this.getPC(), 4);
             var regPS = this.getPS();
             this.updateReg("F", regPS, 2);
-            this.updateReg("S", (regPS & CPUDef.PS.SF), 1);
-            this.updateReg("Z", (regPS & CPUDef.PS.ZF), 1);
-            this.updateReg("A", (regPS & CPUDef.PS.AF), 1);
-            this.updateReg("P", (regPS & CPUDef.PS.PF), 1);
-            this.updateReg("C", (regPS & CPUDef.PS.CF), 1);
+            this.updateReg("SF", (regPS & CPUDef.PS.SF), 1);
+            this.updateReg("ZF", (regPS & CPUDef.PS.ZF), 1);
+            this.updateReg("AF", (regPS & CPUDef.PS.AF), 1);
+            this.updateReg("PF", (regPS & CPUDef.PS.PF), 1);
+            this.updateReg("CF", (regPS & CPUDef.PS.CF), 1);
         }
     }
     var controlSpeed = this.bindings["speed"];
diff --git a/versions/pc8080/1.21.7/pc8080-dbg.js b/versions/pc8080/1.21.7/pc8080-dbg.js
index d441d8a0a..805eab7f1 100644
--- a/versions/pc8080/1.21.7/pc8080-dbg.js
+++ b/versions/pc8080/1.21.7/pc8080-dbg.js
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+function Ce(a,b){if("?"==b)a.g("frequency commands:"),a.g("\tclear\tclear all frequency counts");else{var c,d=0;if(a.J)if("clear"==b){for(c=0;c<a.J.length;c++)a.J[c]=[c,0];a.g("frequency data cleared");d++}else if(void 0!==b)a.g("unknown frequency command: "+b),d++;else{var e=a.J.slice();e.sort(function(a,b){return b[1]-a[1]});for(c=0;c<e.length;c++){var f=e[c][0],k=e[c][1];k&&(a.g((td[a.jb[f][0]]+"  ").substr(0,5)+" ("+("0x"+n(f,2))+"): "+k+" times"),d++)}}d||a.g("no frequency data available")}}
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