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https://github.com/pkimpel/retro-b5500.git
synced 2026-05-04 23:26:31 +00:00
Commit word-mode compare ops and miscellaneous improvements in Processor.
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@@ -44,6 +44,9 @@ function getOctal(id) {
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var text = e.value; // text of element
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var v; // parsed value of element text
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if (text.search(/\S/) < 0) {
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text = "0";
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}
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if (text.search(/[-+eE.]/) < 0) {
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v = parseInt(text, 8);
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} else {
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@@ -123,14 +126,17 @@ function reg_onChange(ev) {
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return result;
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}
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function testIt(index) {
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function stepIt() {
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/* Simple test driver for the Processor arithmetic ops */
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var opcode = 0x02D; // NOOP (XX55) by default
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var opList = document.getElementById("OpList")
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var text;
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var title;
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var value;
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cc.P1.X = cc.P1.I = 0;
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title = opList.options[opList.selectedIndex].text
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value = opList.options[opList.selectedIndex].value;
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opcode = parseInt(value, 8);
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value = getOctal("AReg");
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if (!isNaN(value)) {
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@@ -143,34 +149,10 @@ function testIt(index) {
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cc.P1.BROF = 1;
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setText("BRegOrig", value.toString(8));
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switch(index) {
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case 1:
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title = "Add";
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opcode = 0x041; // ADD (0101)
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break;
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case 2:
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title = "Subtract";
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opcode = 0x0C1; // SUB (0301)
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break;
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case 3:
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title = "Multiply";
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opcode = 0x101; // MUL (0401)
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break;
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case 4:
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title = "Divide";
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opcode = 0x201; // DIV (1001)
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break;
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case 5:
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title = "Integer Divide";
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opcode = 0x601; // IDV (3001)
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break;
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case 6:
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title = "Remainder Divide";
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opcode = 0xE01; // RDV (7001)
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break;
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}
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cc.P1.I = 0; // reset any interrupts
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cc.IAR = 0;
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cc.P1.X = 0;
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cc.P1.T = opcode;
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cc.P1.step();
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@@ -259,12 +241,33 @@ window.onload = function() {
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</table>
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<p>
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<!--
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<input name=Add type=button value=Add onclick="return testIt(1)">
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<input name=Subtract type=button value=Subtract onclick="return testIt(2)">
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<input name=Multiply type=button value=Multiply onclick="return testIt(3)">
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<input name=Divide type=button value=Divide onclick="return testIt(4)">
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<input name=IntDiv type=button value="Int Div" onclick="return testIt(5)">
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<input name=Remide type=button value="Rem Div" onclick="return testIt(6)">
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-->
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Syllable:
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<select id=OpList name=OpList>
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<option value="0055" selected>NOP : No Operation
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<option value="0101">ADD : Add
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<option value="0301">SUB : Subtract
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<option value="0401">MUL : Multiply
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<option value="1001">DIV : Divide
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<option value="3001">IDV : Integer Divide
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<option value="7001">RDV : Remainder Divide
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<option value="0125">GEQ : B Greater or Equal A
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<option value="0225">GTR : B Greater Than A
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<option value="0425">NEQ : B Not Equal A
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<option value="4125">LEQ : B Less or Equal A
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<option value="4225">LSS : B Less Than A
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<option value="4425">EQL : B Equal A
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</select>
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<input id=Step name=Step type=button value="Step" onclick="return stepIt()">
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</p>
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</body>
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