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Getting ready to retire old 16-bit flags code

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This commit is contained in:
Jeff Parsons 2015-03-16 14:39:03 -07:00 • committed by jeffpar
commit 72cf8d1f4d
12 changed files with 4078 additions and 3318 deletions
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26
modules/pcjs/lib/cpu.js
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@ -424,26 +424,28 @@ CPU.prototype.displayChecksum = function()
};
/**
* displayReg(sReg, nVal, cch)
* displayValue(sLabel, nValue, cch)
*
* This is principally for displaying register values, but in reality, it can be used to display any
* numeric (hex) value bound to the given label.
*
* @this {CPU}
* @param {string} sReg
* @param {number} nVal
* @param {number} [cch] default is 4
* @param {string} sLabel
* @param {number} nValue
* @param {number} cch
*/
CPU.prototype.displayReg = function(sReg, nVal, cch)
CPU.prototype.displayValue = function(sLabel, nValue, cch)
{
if (this.bindings[sReg]) {
if (cch === undefined) cch = 4;
if (nVal === undefined) {
this.setError("Register " + sReg + " is invalid");
if (this.bindings[sLabel]) {
if (nValue === undefined) {
this.setError("Value for " + sLabel + " is invalid");
this.stopCPU();
}
var sVal;
if (!this.aFlags.fRunning || this.aFlags.fDisplayLiveRegs) {
sVal = str.toHex(nVal, cch);
sVal = str.toHex(nValue, cch);
} else {
sVal = "----".substr(0, cch);
sVal = "--------".substr(0, cch);
}
/*
* TODO: Determine if this test actually avoids any redrawing when a register hasn't changed, and/or if
@ -451,7 +453,7 @@ CPU.prototype.displayReg = function(sReg, nVal, cch)
* string values that will have to garbage-collected), and/or if this is actually slower, and/or if I'm being
* too obsessive.
*/
if (this.bindings[sReg].textContent != sVal) this.bindings[sReg].textContent = sVal;
if (this.bindings[sLabel].textContent != sVal) this.bindings[sLabel].textContent = sVal;
}
};