Preston Skupinski
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1f127547e1
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added ADC direct page and ADC absolute
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2011-05-07 13:08:02 -04:00 |
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Preston Skupinski
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861a8183b2
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check for signed overflow with ADC
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2011-05-07 12:17:14 -04:00 |
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Preston Skupinski
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676b111870
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added ADC immediate
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2011-05-07 11:02:17 -04:00 |
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Preston Skupinski
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f613f2b15e
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add 'var' where I somehow forgot to in order to satisfy QUnit
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2011-05-05 22:42:16 -04:00 |
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Preston Skupinski
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17dd04c7d6
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fixed DEC operations to properly handle decrementing 0 by 1 and numerous fixes to the DEC and INC operations otherwise
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2011-05-05 22:34:49 -04:00 |
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Preston Skupinski
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7500a31ef5
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started adding test cases for the emulator, I've decided upon using QUnit for the tests
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2011-05-05 17:25:44 -04:00 |
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Preston Skupinski
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aed03f6ff5
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fixed SEP and REP
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2011-05-05 11:39:34 -04:00 |
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Preston Skupinski
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a9f15f133b
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set the n bit of the p status register as required and a few bug fixes otherwise
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2011-05-04 22:39:19 -04:00 |
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Preston Skupinski
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94af723baa
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added DEC accumulator, DEC absolute, DEC direct page, DEX, and DEY as well as added overflow handling for INC and DEC operations and made some style changes
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2011-05-03 00:00:40 -04:00 |
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Preston Skupinski
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5a349a4381
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added BPL, BMI
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2011-05-02 22:28:20 -04:00 |
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Preston Skupinski
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9795ea416b
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added BCC, BCS, BEQ, BNE, BVC, BVS
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2011-05-02 21:11:57 -04:00 |
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Preston Skupinski
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ddbf51d8ef
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added BRA
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2011-05-02 20:20:20 -04:00 |
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Preston Skupinski
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8a401c9eba
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added JMP absolute indirect and repositioned the incrementing of the program counter so the program counter doesn't incorrectly increment after a branch or jump and increments at the correct time anyways
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2011-05-02 18:10:17 -04:00 |
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Preston Skupinski
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952b6ba840
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added JMP absolute
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2011-05-02 16:29:09 -04:00 |
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Preston Skupinski
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a5d690e9cb
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quick fix to a silly mistake
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2011-05-02 08:03:53 -04:00 |
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Preston Skupinski
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4828d9c1b1
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added STA and LDA absolute long
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2011-05-01 20:09:14 -04:00 |
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Preston Skupinski
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09fce7cff5
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added STA direct page indirect
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2011-05-01 17:38:04 -04:00 |
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Preston Skupinski
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96a8899204
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added LDA direct page indirect (0xb2)
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2011-05-01 16:52:48 -04:00 |
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Preston Skupinski
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982107a90b
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fixed a mistake where I mixed up high byte and low byte in a few cases
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2011-05-01 16:07:10 -04:00 |
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Preston Skupinski
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93ae3ec6a0
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check if transferred value is zero and set the z bit of the p status register
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2011-05-01 13:46:28 -04:00 |
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Preston Skupinski
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b167d4c164
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added TAX, TAY, TXA and TYA
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2011-05-01 13:15:16 -04:00 |
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Preston Skupinski
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08593831b3
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added TXY and TYX
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2011-05-01 12:20:18 -04:00 |
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Preston Skupinski
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44696ed8ce
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direct page addressing when using an index register must overflow to 0x0000 and not be allowed to exceed 0xffff, so 0xfff0+0x12 should result in an address of 0x02
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2011-04-30 23:54:07 -04:00 |
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Preston Skupinski
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f809dfccc7
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initial commit
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2011-04-30 21:45:56 -04:00 |
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