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cpuTest.html
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<!DOCTYPE html>
<html>
<!--
TI calculator simulator
Ken Shirriff, http://righto.com/ti
Based on patent US3934233
This file holds unittests for cpu.js, based on qunit.
-->
<head>
<meta charset="utf-8">
<title>Calculator unittests</title>
<link rel="stylesheet" href="http://code.jquery.com/qunit/qunit-1.11.0.css" >
<script src="model.js"></script>
<script src="keygrid.js"></script>
<script src="cpu.js"></script>
<script src="masks_0800.js"></script>
</head>
<body>
<div id="qunit"></div>
<div id="qunit-fixture">
<canvas id="keygrid"></canvas>
</div>
<script src="http://code.jquery.com/qunit/qunit-1.11.0.js"></script>
<script>
var keys = [
['1', '2', '3', '4', '5', '6', '7', '8', '9', ''],
['C', '=', '+', '-', '*', '/', 'CE', '.', '0', 'D'],
['', '', '', '', '', '', '', '', '', '']];
var WAITDK = (2<<9) | (17<<4);
var WAITNO = (2<<9) | (18<<4);
var SFB = (2<<9) | (19<<4);
var SFA = (2<<9) | (20<<4);
var SYNC = (2<<9) | (21<<4);
var SCAN = (2<<9) | (22<<4);
var ZFB = (2<<9) | (23<<4);
var ZFA = (2<<9) | (24<<4);
var TFB = (2<<9) | (25<<4);
var TFA = (2<<9) | (26<<4);
var FFB = (2<<9) | (27<<4);
var FFA = (2<<9) | (28<<4);
var CF = (2<<9) | (29<<4);
var NOP = (2<<9) | (30<<4);
var EXF = (2<<9) | (31<<4);
var AABA = (3<<9) | (0<<4); // A+B -> A
var AAKA = (3<<9) | (1<<4); // A+K -> A
var AAKC = (3<<9) | (2<<4); // A+K -> C
var ABOA = (3<<9) | (3<<4); // B -> A
var ABOC = (3<<9) | (4<<4); // B -> C
var ACKA = (3<<9) | (5<<4); // C+K -> A
var ACKB = (3<<9) | (6<<4); // C+K -> B
var SABA = (3<<9) | (7<<4); // A-B -> A
var SABC = (3<<9) | (8<<4); // A-B -> C
var SAKA = (3<<9) | (9<<4); // A-K -> A
var SCBC = (3<<9) | (10<<4); // C-B -> C
var SCKC = (3<<9) | (11<<4); // C-K -> C
var CAB = (3<<9) | (12<<4); // compare A-B
var CAK = (3<<9) | (13<<4); // compare A-K
var CCB = (3<<9) | (14<<4); // compare C-B
var CCK = (3<<9) | (15<<4); // compare C-K
var AKA = (3<<9) | (16<<4); // K -> A
var AKB = (3<<9) | (17<<4); // K -> B
var AKC = (3<<9) | (18<<4); // K -> C
var EXAB = (3<<9) | (19<<4); // exchange A and B
var SLLA = (3<<9) | (20<<4); // shift A left
var SLLB = (3<<9) | (21<<4); // shift B left
var SLLC = (3<<9) | (22<<4); // shift C left
var SRLA = (3<<9) | (23<<4); // shift A right
var SRLB = (3<<9) | (24<<4); // shift B right
var SRLC = (3<<9) | (25<<4); // shift C right
var AKCN = (3<<9) | (26<<4); // A+K -> A until key down or D11
var AAKAH = (3<<9) | (27<<4); // AAKAH A+K -> A hex
var SAKAH = (3<<9) | (28<<4); // SAKAH A-K -> A hex
var ACKC = (3<<9) | (29<<4); // C+K -> C
var BKO = 8 << 7; // Branch on KO key
var BKP = 9 << 7; // Branch on KP key
// Sinclair-specific opcodes
var S_ACBB = (3<<9) | (3<<4); // C+B -> B
var S_SCBA = (3<<9) | (27<<4); // C-B -> A
var S_SCKB = (3<<9) | (28<<4); // C-K -> B
var S_AABC = (3<<9) | (30<<4); // A+B -> C
var S_ACBC = (3<<9) | (31<<4); // C+B -> C
var model;
var cpu;
module("cpu", {
setup: function() {
model = new Model();
cpu = new Cpu(model, masks);
model.rom = [];
model.address = 0x42;
}
});
test( "D update", function() {
model.d = [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]; // D scan register, d[0] low for D1
model.dActive = 1; // Currently active D value 1-10
model.address = 0;
for (var i = 0; i < 320; i++) {
model.rom[i] = NOP;
}
cpu.step();
deepEqual( model.d, [1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1]);
equal( model.dActive, 2);
for (var i = 3; i <= 10; i++) {
cpu.step();
equal( model.dActive, i);
}
deepEqual( model.d, [1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1]);
cpu.step();
deepEqual( model.d, [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]);
equal( model.dActive, 1);
});
test( "Jump reset taken", function() {
model.rom[0x42] = (0 << 9) | 0x123;
cpu.step();
equal( model.address, 0x123, "Expect jump taken" );
equal( model.cc, 0, "");
});
test( "Jump reset not taken", function() {
model.rom[0x42] = (0 << 9) | 0x123;
model.cc = 1;
cpu.step();
equal( model.address, 0x43, "Expect jump not taken" );
equal( model.cc, 0, "");
});
test( "Jump set taken", function() {
model.rom[0x42] = (1 << 9) | 0x123;
model.cc = 1;
cpu.step();
equal( model.address, 0x123, "Expect jump taken" );
equal( model.cc, 0, "");
});
test( "Jump set not taken", function() {
model.rom[0x42] = (1 << 9) | 0x123;
model.cc = 0;
cpu.step();
equal( model.address, 0x43, "Expect jump not taken" );
equal( model.cc, 0, "");
});
test( "mask0", function() {
model.rom[0x42] = AABA | 0; // Mask 0
deepEqual(cpu.getMask(), [' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', 7]);
});
test( "mask11", function() {
model.rom[0x42] = AABA | 11; // Mask 0
deepEqual(cpu.getMask(), [0, 0, 0, 0, 0, 0, 0, 0, 1, ' ', ' ']);
});
test( "AABA, mask 15 (all)", function() {
model.rom[0x42] = AABA | 15;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1];
model.b = [1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3];
model.cc = 1;
cpu.step();
equal( model.cc, 1, "No ovf"); // unchanged
equal( model.ccMeaning, "", 'ccMeaning');
deepEqual( model.a, [2, 4, 6, 4, 6, 9, 0, 9, 0, 2, 4], "Result");
});
test( "AABA, mask 0", function() {
model.rom[0x42] = AABA | 0;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1];
model.b = [1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3];
cpu.step();
equal( model.cc, 0, "No ovf"); // unchanged
equal( model.ccMeaning, "", 'ccMeaning');
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 4], "Result");
});
test( "AABA, mask 0, carry", function() {
model.rom[0x42] = AABA | 0;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
model.b = [1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3];
cpu.step();
equal( model.cc, 1, "ovf");
equal( model.ccMeaning, "overflow", 'ccMeaning');
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 2], "Result");
});
test( "AAKA, mask 2, carry", function() {
model.rom[0x42] = AAKA | 2;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
cpu.step();
equal( model.cc, 1, "ovf");
equal( model.ccMeaning, "overflow", 'ccMeaning');
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, 0, 0, 9], "Result");
});
test( "AAKC", function() {
model.rom[0x42] = AAKC | 2;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
model.c = [5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5];
cpu.step();
equal( model.cc, 1, "ovf");
equal( model.ccMeaning, "overflow", 'ccMeaning');
deepEqual( model.c, [5, 6, 7, 8, 9, 0, 1, 2, 0, 4, 5], "Result");
});
test( "ABOA", function() {
model.rom[0x42] = ABOA | 9;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
model.b = [1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3];
cpu.step();
equal( model.cc, 0, "ovf");
equal( model.ccMeaning, "", 'ccMeaning');
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3], "Result");
});
test( "ABOC", function() {
model.rom[0x42] = ABOC | 11;
model.c = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
model.b = [1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3];
cpu.step();
equal( model.cc, 0, "ovf");
equal( model.ccMeaning, "", 'ccMeaning');
deepEqual( model.c, [1, 2, 3, 0, 1, 2, 3, 0, 1, 0, 9], "Result");
});
test( "ACKA", function() {
model.rom[0x42] = ACKA | 13; // K = 01
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
model.c = [1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3];
model.cc = 1;
cpu.step();
equal( model.cc, 1, 'cc'); // unchanged
equal( model.ccMeaning, "", 'ccMeaning');
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, 9, 2, 4], "Result");
});
test( "ACKB", function() {
model.rom[0x42] = ACKB | 15; // K = 0
model.b = [9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 9];
model.c = [1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3];
cpu.step();
equal( model.cc, 0, 'cc'); // unchanged
equal( model.ccMeaning, "", 'ccMeaning');
deepEqual( model.b, [1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3], "Result");
});
test( "SABA", function() {
model.rom[0x42] = SABA | 15;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
model.b = [9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 9];
cpu.step();
equal( model.cc, 1, 'cc');
equal( model.ccMeaning, "borrow", 'ccMeaning');
deepEqual( model.a, [1, 3, 5, 8, 0, 2, 4, 6, 8, 0, 0], "Result");
});
test( "SABC", function() {
model.rom[0x42] = SABC | 7;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
model.b = [9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 9];
model.c = [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2];
cpu.step();
equal( model.cc, 1, 'cc');
equal( model.ccMeaning, "borrow", 'ccMeaning');
deepEqual( model.c, [2, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2], "Result");
});
test( "SAKA", function() {
model.rom[0x42] = SAKA | 1; // K = 4
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
cpu.step();
equal( model.cc, 1, 'cc');
equal( model.ccMeaning, "borrow", 'ccMeaning');
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, 9, 6, 9], "Result");
});
test( "SCBC", function() {
model.rom[0x42] = SCBC | 15;
model.c = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
model.b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
cpu.step();
equal( model.cc, 0, 'cc'); // unchanged
equal( model.ccMeaning, "", 'ccMeaning');
deepEqual( model.c, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], "Result");
});
test( "SCKC", function() {
model.rom[0x42] = SCKC | 1; // K = 4
model.c = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
cpu.step();
equal( model.cc, 1, 'cc');
equal( model.ccMeaning, "borrow", 'ccMeaning');
deepEqual( model.c, [1, 2, 3, 4, 5, 6, 7, 8, 9, 6, 9], "Result");
});
test( "CAB", function() {
model.rom[0x42] = CAB | 9;
var a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1];
var b = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5];
model.a = a;
model.b = b;
cpu.step();
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, "not less than", 'ccMeaning');
deepEqual( model.a, a, "register unchanged");
deepEqual( model.b, b, "register unchanged");
});
test( "CAB-2", function() {
model.rom[0x42] = CAB | 15;
var a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1];
var b = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5];
model.a = a;
model.b = b;
cpu.step();
equal( model.cc, 1, 'cc');
equal( model.ccMeaning, "less than", 'ccMeaning');
deepEqual( model.a, a, "register unchanged");
deepEqual( model.b, b, "register unchanged");
});
test( "CAK", function() {
model.rom[0x42] = CAK | 2;
var a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 4, 6];
model.a = a;
cpu.step();
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, "not less than", 'ccMeaning');
deepEqual( model.a, a, "register unchanged");
});
test( "CAK-2", function() {
model.rom[0x42] = CAK | 0;
var a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 4, 6];
model.a = a;
cpu.step();
equal( model.cc, 1, 'cc');
equal( model.ccMeaning, "less than", 'ccMeaning');
deepEqual( model.a, a, "register unchanged");
});
test( "CCB", function() {
model.rom[0x42] = CCB | 9;
var c = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1];
var b = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5];
model.c = c;
model.b = b;
cpu.step();
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, "not less than", 'ccMeaning');
deepEqual( model.c, c, "register unchanged");
deepEqual( model.b, b, "register unchanged");
});
test( "CCB-2", function() {
model.rom[0x42] = CCB | 15;
var c = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1];
var b = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5];
model.c = c;
model.b = b;
cpu.step();
equal( model.cc, 1, 'cc');
equal( model.ccMeaning, "less than", 'ccMeaning');
deepEqual( model.c, c, "register unchanged");
deepEqual( model.b, b, "register unchanged");
});
test( "CCK", function() {
model.rom[0x42] = CCK | 2;
var c = [1, 2, 3, 4, 5, 6, 7, 8, 9, 3, 6];
model.c = c;
cpu.step();
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, "not less than", 'ccMeaning');
deepEqual( model.c, c, "register unchanged");
});
test( "CCK-2", function() {
model.rom[0x42] = CCK | 1;
var c = [1, 2, 3, 4, 5, 6, 7, 8, 9, 3, 6];
model.c = c;
cpu.step();
equal( model.cc, 1, 'cc');
equal( model.ccMeaning, "less than", 'ccMeaning');
deepEqual( model.c, c, "register unchanged");
});
test( "AKA", function() { // Copy K to A
model.rom[0x42] = AKA | 0;
model.a = [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.a, [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 7], "Result");
});
test( "AKB", function() { // Copy K to B
model.rom[0x42] = AKB | 8;
model.b = [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.b, [1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4], "Result");
});
test( "AKC", function() { // Copy K to C
model.rom[0x42] = AKC | 0;
model.c = [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.c, [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 7], "Result");
});
test( "EXAB", function() { // Exchange A and B
model.rom[0x42] = EXAB | 9;
model.cc = 1;
model.ccMeaning = 'oldvalue';
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1];
model.b = [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4];
cpu.step();
equal( model.cc, 1, "cc");
equal( model.ccMeaning, 'oldvalue', 'ccMeaning');
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, 4, 4, 4], 'a');
deepEqual( model.b, [4, 4, 4, 4, 4, 4, 4, 4, 9, 0, 1], 'b');
});
test( "SLLA", function() { // Shift A left
model.rom[0x42] = SLLA | 11;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.a, [2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2]);
});
test( "SLLB", function() { // Shift B left
model.rom[0x42] = SLLB | 13;
model.b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.b, [1, 2, 3, 4, 5, 6, 7, 8, 9, 2, 0]);
});
test( "SLLC", function() { // Shift C left
model.rom[0x42] = SLLC | 15;
model.c = [1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.c, [2, 3, 4, 5, 6, 7, 8, 9, 1, 2, 0]);
});
test( "SRLA", function() { // Shift A right
model.rom[0x42] = SRLA | 11;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.a, [0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2]);
});
test( "SRLB", function() { // Shift B right
model.rom[0x42] = SRLB | 13;
model.b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.b, [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1]);
});
test( "SRLC", function() { // Shift C right
model.rom[0x42] = SRLC | 15;
model.c = [1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.c, [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1]);
});
test( "AKCN-nokey", function() { // Add constant until key
var keygrid = new Keygrid(document.getElementById("keygrid"), model, keys);
model.rom[0x42] = AKCN | 2; // Mask is 1 in 3rd digit from left.
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 0, 1, 2];
equal( model.dActive, 1);
for (var i = 0; i < 9; i++) {
keygrid.update();
equal( model.keyStrobe, 0, 'keyStrobe');
cpu.step();
equal( model.address, 0x42, 'address');
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, i + 1, 1, 2]);
}
keygrid.update();
cpu.step();
equal( model.address, 0x43);
equal( model.cc, 1, 'cc');
equal( model.ccMeaning, 'overflow', 'ccMeaning');
// A should be incremented by 10
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, 0, 1, 2]);
});
test( "AKCN-key", function() { // scan for key press
var keygrid = new Keygrid(document.getElementById("keygrid"), model, keys);
model.rom[0x42] = AKCN | 11; // Mask is top 9 digits
model.a = [1, 9, 3, 4, 5, 6, 7, 8, 9, 1, 2];
model.keyPressed = '2';
// No key in D1
keygrid.update();
equal( model.dActive, 1);
equal( model.keyStrobe, 0, 'keyStrobe');
cpu.step();
equal( model.address, 0x42, 'address');
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.a, [1, 9, 3, 4, 5, 6, 7, 9, 0, 1, 2], 'a advanced');
// Key in D2, address advances
keygrid.update();
equal( model.keyStrobe, 'KN');
cpu.step();
equal( model.address, 0x43);
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.a, [1, 9, 3, 4, 5, 6, 7, 9, 1, 1, 2], 'a advanced');
});
test( "AAKAH", function() { // A + K -> A hex
model.rom[0x42] = AAKAH | 11;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, 10, 1, 2]);
});
test( "AAKAH-carry", function() { // A + K -> A hex
model.rom[0x42] = AAKAH | 0;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 9];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 0]);
});
test( "AAKAH-carry2", function() { // A + K -> A hex
model.rom[0x42] = AAKAH | 13;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 9, 15];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 0]);
});
test( "SAKAH", function() { // A - K -> A hex
model.rom[0x42] = SAKAH | 0;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 9];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2]);
});
test( "SAKAH-borrow", function() { // A - K -> A hex
model.rom[0x42] = SAKAH | 13;
model.a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.a, [1, 2, 3, 4, 5, 6, 7, 8, 9, 15, 15]);
});
test( "ACKC", function() { // C + K -> C
model.rom[0x42] = ACKC | 0;
model.c = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1];
cpu.step();
equal( model.cc, 0, "No ovf");
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.c, [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 8]);
});
// Flag operation tests
test( "WAITDK", function() { // Wait for DK
model.rom[0x42] = WAITDK | 0x3;
cpu.step();
// Address held
equal( model.address, 0x42, 'address');
equal( model.display, 0, 'display');
// Set DK and address advances
model.keyPressed = 'DK';
cpu.step();
// Note that top bits of address are WAITDK op because opcode and address overlap (!)
equal( model.address, (WAITDK | 0x3) & 0x1ff, 'address');
});
test( "WAITNO-nokey", function() { // Wait for key
var keygrid = new Keygrid(document.getElementById("keygrid"), model, keys);
model.rom[0x42] = WAITNO | 0x5;
equal( model.dActive, 1);
for (var i = 0; i <= 30; i++) {
keygrid.update();
equal( model.keyStrobe, 0, 'keyStrobe');
cpu.step();
equal( model.address, 0x42, 'address');
equal( model.display, 1);
}
keygrid.update();
cpu.step();
// Address still hasn't advanced
equal( model.address, 0x42);
});
test( "WAITNO-key", function() { // scan for key press
var keygrid = new Keygrid(document.getElementById("keygrid"), model, keys);
model.rom[0x42] = WAITNO | 0x5;
model.keyPressed = '2';
// No key in D1
keygrid.update();
equal( model.dActive, 1);
equal( model.keyStrobe, 0, 'keyStrobe');
equal( model.display, 1);
cpu.step();
equal( model.address, 0x42, 'address');
equal( model.display, 1);
// Key in D2, address advances
keygrid.update();
equal( model.keyStrobe, 'KN');
cpu.step();
// Note that top bits of address are WAITNO op because opcode and address overlap (!)
equal( model.address, (WAITNO | 0x5) & 0x1ff, 'address');
});
test( "SFB", function() { // set flag B
model.rom[0x42] = SFB | 9;
model.bf = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
cpu.step();
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.bf, [0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1]);
});
test( "SFA", function() { // set flag A
model.rom[0x42] = SFA | 15;
model.af = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
cpu.step();
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.af, [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]);
});
test( "SYNC", function() { // sync to D10
// model starts in D1
model.rom[0x42] = SYNC;
for (var i = 2; i <= 10; i++) {
cpu.step();
equal( model.dActive, i);
equal( model.address, 0x42);
}
deepEqual( model.d, [1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1]);
equal( model.address, 0x42);
cpu.step();
equal( model.dActive, 1);
deepEqual( model.d, [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]);
equal( model.address, 0x43); // Address advances
});
test( "SCAN-nokey", function() { // scan for key press
var keygrid = new Keygrid(document.getElementById("keygrid"), model, keys);
model.rom[0x42] = SCAN;
model.display = 0; // Display off
equal( model.dActive, 1);
for (var i = 2; i <= 10; i++) {
keygrid.update();
equal( model.keyStrobe, 0, 'keyStrobe');
cpu.step();
equal( model.address, 0x42, 'address');
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, 'no key', 'ccMeaning');
equal( model.display, 1, 'display latch');
}
keygrid.update();
cpu.step();
equal( model.address, 0x43);
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, 'no key', 'ccMeaning');
});
test( "SCAN-key", function() { // scan for key press
var keygrid = new Keygrid(document.getElementById("keygrid"), model, keys);
model.rom[0x42] = SCAN;
model.keyPressed = '2';
// No key in D1
keygrid.update();
equal( model.dActive, 1);
equal( model.keyStrobe, 0, 'keyStrobe');
cpu.step();
equal( model.address, 0x42, 'address');
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, 'no key', 'ccMeaning');
// Key in D2, address advances
keygrid.update();
equal( model.keyStrobe, 'KN');
cpu.step();
equal( model.address, 0x43);
equal( model.cc, 1, 'cc');
equal( model.ccMeaning, 'key', 'ccMeaning');
});
test( "ZFB", function() { // set flag B
model.rom[0x42] = ZFB | 9;
model.bf = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
model.cc = 0;
model.ccMeaning = 'old value';
cpu.step();
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, 'old value', 'ccMeaning');
deepEqual( model.bf, [0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0]);
});
test( "ZFA", function() { // zero flag A
model.rom[0x42] = ZFA | 15;
model.cc = 1;
model.af = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
cpu.step();
equal( model.cc, 1, 'cc flag should be unchanged');
deepEqual( model.af, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
});
test( "TFB-clear", function() { // test flag B, unclear meaning for multi-bit flags
model.rom[0x42] = TFB | 0;
model.bf = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
model.ccMeaning = 'oldvalue';
cpu.step();
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, 'oldvalue', 'ccMeaning');
});
test( "TFB-set", function() { // test flag B
model.rom[0x42] = TFB | 1;
model.bf = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
cpu.step();
equal( model.cc, 1, 'cc');
equal( model.ccMeaning, 'flag set', 'ccMeaning');
});
test( "TFA-clear-preclear", function() { // test flag A
model.rom[0x42] = TFA | 2;
model.af = [0, 1, 0 /* bit */ , 1, 0, 1, 0, 1, 0, 1, 0];
model.cc = 0;
model.ccMeaning = 'oldvalue';
cpu.step();
equal( model.cc, 0, 'cc still clear');
equal( model.ccMeaning, 'oldvalue', 'ccMeaning');
});
test( "TFA-set-preclear", function() { // test flag A
model.rom[0x42] = TFA | 3;
model.af = [0, 1, 0, 1 /* bit */, 0, 1, 0, 1, 0, 1, 0];
model.cc = 0;
model.ccMeaning = 'oldvalue';
cpu.step();
equal( model.cc, 1, 'cc set');
equal( model.ccMeaning, 'flag set', 'ccMeaning');
});
test( "TFA-clear-preset", function() { // test flag A
model.rom[0x42] = TFA | 2;
model.af = [0, 1, 0 /* bit */, 1, 0, 1, 0, 1, 0, 1, 0];
model.cc = 1;
model.ccMeaning = 'oldvalue';
cpu.step();
equal( model.cc, 1, 'cc still set');
equal( model.ccMeaning, 'oldvalue', 'ccMeaning');
});
test( "TFA-set-preset", function() { // test flag A
model.rom[0x42] = TFA | 3;
model.af = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
model.cc = 1;
cpu.step();
equal( model.cc, 1, 'cc set');
equal( model.ccMeaning, 'flag set', 'ccMeaning');
});
test( "FFB", function() { // flip flag B
model.rom[0x42] = FFB | 9;
model.bf = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
cpu.step();
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.bf, [0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1]);
});
test( "FFA", function() { // flip flag A
model.rom[0x42] = FFA | 15;
model.af = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
cpu.step();
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.af, [1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1]);
});
test( "CF", function() { // compare flags
model.rom[0x42] = CF | 15;
model.af = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
model.bf = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
model.cc = 1;
cpu.step();
equal( model.cc, 1, 'unchanged');
equal( model.ccMeaning, '', 'ccMeaning');
});
test( "CF-equal", function() { // compare flags
model.rom[0x42] = CF | 9;
model.af = [1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0];
model.bf = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
cpu.step();
equal( model.cc, 0, 'unchanged');
equal( model.ccMeaning, '', 'ccMeaning');
});
test( "CF-notequal", function() { // compare flags
model.rom[0x42] = CF | 9;
model.af = [1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1];
model.bf = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
cpu.step();
equal( model.cc, 1, 'cc');
equal( model.ccMeaning, 'flags not equal', 'ccMeaning');
});
test( "EXF", function() { // exchange flags
model.rom[0x42] = EXF | 9;
model.af = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0];
model.bf = [0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0];
cpu.step();
equal( model.cc, 0, 'cc');
equal( model.ccMeaning, '', 'ccMeaning');
deepEqual( model.af, [0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0]);
deepEqual( model.bf, [0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0]);
});
test( "BKO-branch", function() {
var keygrid = new Keygrid(document.getElementById("keygrid"), model, keys);
model.rom[0x42] = BKO | 0x55;
model.keyPressed = '+';
equal( model.dActive, 1);
for (var i = 2; i < 4; i++) {
keygrid.update();
cpu.step();
equal( model.dActive, i, 'dActive');
equal( model.address, 0x43, 'address');
model.address = 0x42; // Try instruction again
}
keygrid.update();
cpu.step();
equal( model.address, 0x55);
});
test( "BKO-nobranch", function() {
var keygrid = new Keygrid(document.getElementById("keygrid"), model, keys);
model.rom[0x42] = BKO | 0x55;
model.keyPressed = '3';
equal( model.dActive, 1);
for (var i = 2; i <= 10; i++) {
keygrid.update();
cpu.step();
equal( model.dActive, i);
equal( model.address, 0x43);
model.address = 0x42; // Try instruction again
}
});
// No key uses KP, so branch not tested
test( "BKP-nobranch", function() {
var keygrid = new Keygrid(document.getElementById("keygrid"), model, keys);
model.rom[0x42] = BKP | 0x55;
model.keyPressed = '*';
equal( model.dActive, 1);
for (var i = 2; i <= 10; i++) {
keygrid.update();
cpu.step();
equal( model.dActive, i);
equal( model.address, 0x43);
model.address = 0x42; // Try instruction again
}
});
// Tests for Sinclair version
test( "sinclair-ACBB", function() {
cpu = new Cpu(model, masks, 1 /* sinclair */);
model.rom[0x42] = S_ACBB | 15;
model.c = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1];
model.b = [1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3];
model.cc = 1;
cpu.step();
equal( model.cc, 1, "unchanged");
equal( model.ccMeaning, "", 'ccMeaning');
deepEqual( model.b, [2, 4, 6, 4, 6, 9, 0, 9, 0, 2, 4], "Result");
});
test( "sinclair-SCBA", function() {
cpu = new Cpu(model, masks, 1 /* sinclair */);
model.rom[0x42] = S_SCBA | 15;
model.c = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
model.b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
cpu.step();
equal( model.cc, 0, 'unchanged');
equal( model.ccMeaning, "", 'ccMeaning');
deepEqual( model.a, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], "Result");
});
test( "sinclair-SCKB", function() {
cpu = new Cpu(model, masks, 1 /* sinclair */);
model.rom[0x42] = S_SCKB | 1; // K = 4
model.c = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 9];
cpu.step();
equal( model.cc, 1, 'cc');
equal( model.ccMeaning, "borrow", 'ccMeaning');
deepEqual( model.b, [0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0], "Result");
});
test( "sinclair-AABC", function() {
cpu = new Cpu(model, masks, 1 /* sinclair */);
model.rom[0x42] = S_AABC | 15;
model.b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1];
model.a = [1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3];
model.cc = 1;
cpu.step();
equal( model.cc, 1, "unchanged");
equal( model.ccMeaning, "", 'ccMeaning');
deepEqual( model.c, [2, 4, 6, 4, 6, 9, 0, 9, 0, 2, 4], "Result");
});
test( "sinclair-ACBC", function() {
cpu = new Cpu(model, masks, 1 /* sinclair */);
model.rom[0x42] = S_ACBC | 15;
model.b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1];
model.c = [1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3];
cpu.step();
equal( model.cc, 0, "unchanged");
equal( model.ccMeaning, "", 'ccMeaning');
deepEqual( model.c, [2, 4, 6, 4, 6, 9, 0, 9, 0, 2, 4], "Result");
});
</script>
</body>
</html>