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Dynamically switch getWord/setWord based on current dataSize

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This commit is contained in:
Jeff Parsons 2015-01-26 17:29:19 -08:00 • committed by jeffpar
commit 84572178c5
14 changed files with 1966 additions and 1958 deletions
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22
modules/pcjs/lib/bus.js
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@ -502,17 +502,17 @@ Bus.prototype.getByteDirect = function(addr)
};
/**
* getWord(addr)
* getShort(addr)
*
* The CPU could use this, but the CPU also needs to update cycle counts, along with BACKTRACK states.
* There may also be a slight performance advantage calling its own getWord() method vs. calling through another
* There may also be a slight performance advantage calling its own getShort() method vs. calling through another
* object (ie, the Bus object).
*
* @this {Bus}
* @param {number} addr is a physical (non-segmented) address
* @return {number} word (16-bit) value at that address
*/
Bus.prototype.getWord = function(addr)
Bus.prototype.getShort = function(addr)
{
var off = addr & this.blockLimit;
var iBlock = (addr & this.addrMask) >> this.blockShift;
@ -523,15 +523,15 @@ Bus.prototype.getWord = function(addr)
};
/**
* getWordDirect(addr)
* getShortDirect(addr)
*
* This is useful for the Debugger and other components that want to bypass getWord() breakpoint detection.
* This is useful for the Debugger and other components that want to bypass getShort() breakpoint detection.
*
* @this {Bus}
* @param {number} addr is a physical (non-segmented) address
* @return {number} word (16-bit) value at that address
*/
Bus.prototype.getWordDirect = function(addr)
Bus.prototype.getShortDirect = function(addr)
{
var off = addr & this.blockLimit;
var iBlock = (addr & this.addrMask) >> this.blockShift;
@ -614,17 +614,17 @@ Bus.prototype.setByteDirect = function(addr, b)
};
/**
* setWord(addr, w)
* setShort(addr, w)
*
* The CPU could use this, but the CPU also needs to update cycle counts, along with BACKTRACK states.
* There may also be a slight performance advantage calling its own setWord() method vs. calling through another
* There may also be a slight performance advantage calling its own setShort() method vs. calling through another
* object (ie, the Bus object).
*
* @this {Bus}
* @param {number} addr is a physical (non-segmented) address
* @param {number} w is the word (16-bit) value to write (we truncate it to 16 bits to be safe)
*/
Bus.prototype.setWord = function(addr, w)
Bus.prototype.setShort = function(addr, w)
{
var off = addr & this.blockLimit;
var iBlock = (addr & this.addrMask) >> this.blockShift;
@ -637,7 +637,7 @@ Bus.prototype.setWord = function(addr, w)
};
/**
* setWordDirect(addr, w)
* setShortDirect(addr, w)
*
* This is useful for the Debugger and other components that want to bypass breakpoint detection AND read-only
* memory protection (for example, this is an interface the ROM component could use to initialize ROM contents).
@ -646,7 +646,7 @@ Bus.prototype.setWord = function(addr, w)
* @param {number} addr is a physical (non-segmented) address
* @param {number} w is the word (16-bit) value to write (we truncate it to 16 bits to be safe)
*/
Bus.prototype.setWordDirect = function(addr, w)
Bus.prototype.setShortDirect = function(addr, w)
{
var off = addr & this.blockLimit;
var iBlock = (addr & this.addrMask) >> this.blockShift;