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More Compaq-specific tweaks

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This commit is contained in:
Jeff Parsons 2015-04-15 20:40:18 -07:00 • committed by jeffpar
commit b9252390bf
6 changed files with 339 additions and 179 deletions
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57
modules/pcjs/lib/video.js
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@ -1240,59 +1240,6 @@ Card.ACCESS.WRITE.MODE2OR = 0xA000;
Card.ACCESS.WRITE.MODE2XOR = 0xE000;
Card.ACCESS.WRITE.MASK = 0xff00;
/**
* readShort(off)
*
* @this {Memory}
* @param {number} off
* @return {number}
*/
Card.ACCESS.readShort = function readShort(off)
{
return this.readByteDirect(off) | (this.readByteDirect(off + 1) << 8);
};
/**
* readLong(off)
*
* @this {Memory}
* @param {number} off
* @return {number}
*/
Card.ACCESS.readLong = function readLong(off)
{
return this.readByteDirect(off) | (this.readByteDirect(off + 1) << 8) | (this.readByteDirect(off + 2) << 16) | (this.readByteDirect(off + 3) << 24);
};
/**
* writeShort(off, w)
*
* @this {Memory}
* @param {number} off
* @param {number} w
*/
Card.ACCESS.writeShort = function writeShort(off, w)
{
Component.assert(!(w & ~0xffff));
this.writeByteDirect(off, w & 0xff);
this.writeByteDirect(off + 1, w >> 8);
};
/**
* writeLong(off, w)
*
* @this {Memory}
* @param {number} off
* @param {number} w
*/
Card.ACCESS.writeLong = function writeLong(off, w)
{
this.writeByteDirect(off, w & 0xff);
this.writeByteDirect(off + 1, (w >> 8) & 0xff);
this.writeByteDirect(off + 2, (w >> 16) & 0xff);
this.writeByteDirect(off + 3, (w >>> 24));
};
/**
* readByteMode0(off)
*
@ -1952,9 +1899,7 @@ Card.prototype.setMemoryAccess = function(nAccess)
fnWriteByte = Card.ACCESS.afn[Card.ACCESS.WRITE.EVENODD];
}
}
if (!this.afnAccess) {
this.afnAccess = [null, Card.ACCESS.readShort, Card.ACCESS.readLong, null, Card.ACCESS.writeShort, Card.ACCESS.writeLong];
}
if (!this.afnAccess) this.afnAccess = new Array(6);
this.afnAccess[0] = fnReadByte;
this.afnAccess[3] = fnWriteByte;
this.nAccess = nAccess;