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https://github.com/trebonian/visual6502.git
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Merging changes for testprogram, and various fixes from Ed
This commit is contained in:
Barry Silverman
commit
dc0fb1ef06
@ -10,6 +10,7 @@
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<script src="chipsim.js"></script>
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<script src="memtable.js"></script>
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<script src="macros.js"></script>
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<script src="testprogram.js"></script>
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<script type="text/javascript">
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function handleOnload() {
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69
macros.js
69
macros.js
@ -21,27 +21,34 @@
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*/
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var memory = Array();
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var code = [0xa9, 0x00, 0x20, 0x10, 0x00, 0x4c, 0x02, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xe8, 0x88, 0xe6, 0x40, 0x38, 0x69, 0x02, 0x60];
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var cycle = 0;
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var trace = Array();
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var logstream = Array();
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var running = false;
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function loadProgram(){
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// a moderate size of static testprogram might be loaded
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if(testprogram.length!=0 && testprogramAddress != undefined)
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for(var i=0;testprogram[i]!=undefined;i++){
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var a=testprogramAddress+i;
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mWrite(a, testprogram[i]);
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if(a<0x200)
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setCellValue(a, testprogram[i]);
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}
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// a small test program or patch might be passed in the URL
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if(userCode.length!=0)
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code=userCode;
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for(var i=0;i<userCode.length;i++){
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if(userCode[i] != undefined){
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mWrite(i, userCode[i]);
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if(i<0x200)
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setCellValue(i, userCode[i]);
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}
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}
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// default reset vector will be 0x0000 because undefined memory reads as zero
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if(userResetLow!=undefined)
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mWrite(0xfffc, userResetLow);
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if(userResetHigh!=undefined)
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mWrite(0xfffd, userResetHigh);
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for(var i=0;i<code.length;i++){
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mWrite(i, code[i]);
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if(i<0x200)
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setCellValue(i, code[i]);
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}
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}
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function go(){
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@ -57,6 +64,21 @@ function go(){
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}
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}
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function goUntilSync(){
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halfStep();
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while(!isNodeHigh(nodenames['sync']) || isNodeHigh(nodenames['clk0']))
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halfStep();
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}
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function goUntilSyncOrWrite(){
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halfStep();
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while(
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!isNodeHigh(nodenames['clk0']) ||
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( !isNodeHigh(nodenames['sync']) && isNodeHigh(nodenames['rw']) )
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)
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halfStep();
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}
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function testNMI(n){
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initChip();
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@ -139,9 +161,16 @@ function signalSet(n){
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return signals;
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}
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var traceChecksum='';
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var goldenChecksum;
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// simulate a single clock phase, updating trace and highlighting layout
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function step(){
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trace[cycle]= {chip: stateString(), mem: getMem()};
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var s=stateString();
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var m=getMem();
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trace[cycle]= {chip: s, mem: m};
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if(goldenChecksum != undefined)
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traceChecksum=adler32(traceChecksum+s+m.slice(0,511).toString(16));
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halfStep();
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if(animateChipLayout)
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refresh();
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@ -179,7 +208,7 @@ function readPstring(){
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var result;
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result = (isNodeHigh(nodenames['p7'])?'N':'n') +
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(isNodeHigh(nodenames['p6'])?'V':'v') +
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'-' +
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'‑' + // non-breaking hyphen
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(isNodeHigh(nodenames['p3'])?'B':'b') +
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(isNodeHigh(nodenames['p3'])?'D':'d') +
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(isNodeHigh(nodenames['p2'])?'I':'i') +
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@ -214,8 +243,7 @@ function busToString(busname){
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if(busname=='p')
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return readPstring();
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if(busname=='tcstate')
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return busToHex('clock1') + busToHex('clock2') +
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busToHex('t2') + busToHex('t3') + busToHex('t4') + busToHex('t5');
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return ['clock1','clock2','t2','t3','t4','t5'].map(busToHex).join("");
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return busToHex(busname);
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}
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@ -341,7 +369,10 @@ function chipStatus(){
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' Y:' + hexByte(readY()) +
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' SP:' + hexByte(readSP()) +
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' ' + readPstring();
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setStatus(machine1, machine2, "Hz: " + estimatedHz().toFixed(1));
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var chk='';
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if(goldenChecksum != undefined)
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chk=" Chk:" + traceChecksum + ((traceChecksum==goldenChecksum)?" OK":" no match");
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setStatus(machine1, machine2, "Hz: " + estimatedHz().toFixed(1) + chk);
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if (loglevel>0) {
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updateLogbox(signalSet(loglevel));
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}
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@ -401,3 +432,13 @@ function setMem(arr){
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function hexWord(n){return (0x10000+n).toString(16).substring(1)}
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function hexByte(n){return (0x100+n).toString(16).substring(1)}
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function adler32(x){
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var a=1;
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var b=0;
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for(var i=0;i<x.length;i++){
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a=(a+x.charCodeAt(i))%65521;
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b=(b+a)%65521;
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}
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return (0x100000000+(b<<16)+a).toString(16).slice(-8);
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}
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15
testprogram.js
Normal file
15
testprogram.js
Normal file
@ -0,0 +1,15 @@
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// This file testprogram.js can be substituted by one of several tests
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// which may not be redistributable
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// for example
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// cbmbasic loaded at 0xa000 with entry point 0xe394
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// test6502 (by Bird Computer) loaded at 0x8000 with entry point 0x8000
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//
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// (can use xxd -i to convert binary into C include syntax, as a starting point)
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//
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testprogramAddress=0x0000;
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testprogram = [
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0xa9, 0x00, 0x20, 0x10, 0x00, 0x4c, 0x02, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xe8, 0x88, 0xe6, 0x40, 0x38, 0x69, 0x02, 0x60
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];
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30
wires.js
30
wires.js
@ -67,6 +67,8 @@ var userCode=[];
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var userResetLow;
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var userResetHigh;
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var userSteps;
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var testprogram=[];
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var testprogramAddress;
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/////////////////////////
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//
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@ -125,22 +127,25 @@ function setupParams(){
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var name=params[0];
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var value=params[1].replace(/\/$/,""); // chrome sometimes adds trailing slash
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// be (relatively) forgiving in what we accept
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if(name=="loglevel" && parseInt(value)>0){
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//
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// user interface mode control
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if(name=="loglevel" && parseInt(value)!=NaN){
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updateLoglevel(value);
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} else if(name=="expert" && value.indexOf("t")==0){
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updateExpertMode(true);
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} else if(name=="graphics" && value.indexOf("f")==0){
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updateChipLayoutVisibility(false);
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} else if(name=="panx" && parseInt(value)!=NaN){
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} else
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// place the graphics window at a point of interest
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if(name=="panx" && parseInt(value)!=NaN){
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panx=parseInt(value);
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} else if(name=="pany" && parseInt(value)!=NaN){
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pany=parseInt(value);
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} else if(name=="zoom" && parseInt(value)!=NaN){
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zoom=parseInt(value);
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} else if(name=="steps" && parseInt(value)!=NaN){
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userSteps=parseInt(value);
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running=true;
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} else if(name=="a" && parseInt(value,16)!=NaN){
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} else
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// load a test program: Address, Data and Reset
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if(name=="a" && parseInt(value,16)!=NaN){
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userAddress=parseInt(value,16);
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} else if(name=="d" && value.match(/[0-9a-fA-F]*/)[0].length==value.length){
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for(var j=0;j<value.length;j+=2)
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@ -148,6 +153,13 @@ function setupParams(){
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} else if(name=="r" && parseInt(value,16)!=NaN){
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userResetLow=parseInt(value,16)%256;
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userResetHigh=(parseInt(value,16)>>8)%256;
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} else
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// run a test program, and optionally check against a golden checksum
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if(name=="steps" && parseInt(value)!=NaN){
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userSteps=parseInt(value);
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running=true;
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} else if(name=="checksum" && parseInt(value,16)!=NaN){
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goldenChecksum=(0x100000000+parseInt(value,16)).toString(16).slice(-8);
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} else {
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if(loglevel>0)
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console.log('unrecognised parameters:',params);
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@ -313,9 +325,9 @@ function drawSeg(ctx, seg){
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function handleKey(e){
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var c = e.charCode;
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c = String.fromCharCode(c);
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if('<>?np'.indexOf(c)==-1) return;
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if(c=='<' && zoom>1) setZoom(zoom/1.2);
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else if(c=='>' && zoom<grMaxZoom) setZoom(zoom*1.2);
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if('<>?npZzx'.indexOf(c)==-1) return;
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if((c=='Z'||c=='x'||c=='<') && zoom>1) setZoom(zoom/1.2);
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else if((c=='z'||c=='>') && zoom<grMaxZoom) setZoom(zoom*1.2);
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else if(c=='?') setZoom(1);
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else if(c=='n') stepForward();
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else if(c=='p') stepBack();
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