Preston Skupinski
|
645c3b6a5b
|
added CMP absolute and CPX/CPY immediate, direct page and absolute
|
2011-05-07 20:42:09 -04:00 |
|
Preston Skupinski
|
cbe6896e8f
|
fix a mistake when it came to storing the high byte in memory, while the previous method "worked" it could cause problems down the road as I was storing data larger than 1 byte in 1 byte cells in numerous cases
|
2011-05-07 19:32:22 -04:00 |
|
Preston Skupinski
|
cc815b4b5f
|
added a space where I was missing one in one test message
|
2011-05-07 18:56:20 -04:00 |
|
Preston Skupinski
|
41d1b2f17c
|
added some tests for CMP
|
2011-05-07 18:55:19 -04:00 |
|
Preston Skupinski
|
96022047d6
|
added CMP immediate and fixed a misunderstanding as to when the carry bit is set or not set with SBC/CMP
|
2011-05-07 18:18:25 -04:00 |
|
Preston Skupinski
|
146992b192
|
added SBC immediate
|
2011-05-07 17:45:39 -04:00 |
|
Preston Skupinski
|
047095c8cc
|
don't add the execute function by extending the prototype
|
2011-05-07 15:43:13 -04:00 |
|
Preston Skupinski
|
9254648308
|
added ADC direct page indexed x, ADC absolute indexed x, ADC absolute indexed y
|
2011-05-07 15:16:37 -04:00 |
|
Preston Skupinski
|
47766a6b0d
|
added ADC direct page indirect
|
2011-05-07 14:37:29 -04:00 |
|
Preston Skupinski
|
1f127547e1
|
added ADC direct page and ADC absolute
|
2011-05-07 13:08:02 -04:00 |
|
Preston Skupinski
|
861a8183b2
|
check for signed overflow with ADC
|
2011-05-07 12:17:14 -04:00 |
|
Preston Skupinski
|
676b111870
|
added ADC immediate
|
2011-05-07 11:02:17 -04:00 |
|
Preston Skupinski
|
fc15c4c495
|
updated the TODO
|
2011-05-05 23:37:58 -04:00 |
|
Preston Skupinski
|
f613f2b15e
|
add 'var' where I somehow forgot to in order to satisfy QUnit
|
2011-05-05 22:42:16 -04:00 |
|
Preston Skupinski
|
17dd04c7d6
|
fixed DEC operations to properly handle decrementing 0 by 1 and numerous fixes to the DEC and INC operations otherwise
|
2011-05-05 22:34:49 -04:00 |
|
Preston Skupinski
|
f2f47833a7
|
added some tests for branching operations
|
2011-05-05 21:41:10 -04:00 |
|
Preston Skupinski
|
d9917b0d4e
|
make the tests for REP and SEP a bit more comprehensive
|
2011-05-05 20:12:01 -04:00 |
|
Preston Skupinski
|
7500a31ef5
|
started adding test cases for the emulator, I've decided upon using QUnit for the tests
|
2011-05-05 17:25:44 -04:00 |
|
Preston Skupinski
|
aed03f6ff5
|
fixed SEP and REP
|
2011-05-05 11:39:34 -04:00 |
|
Preston Skupinski
|
03387a550c
|
have the examples make sure the registers are 16-bit
|
2011-05-05 11:11:58 -04:00 |
|
Preston Skupinski
|
efa6b123ac
|
updated the TODO
|
2011-05-05 11:00:59 -04:00 |
|
Preston Skupinski
|
7572795c12
|
add some examples demonstrating branching support to the README
|
2011-05-04 22:47:54 -04:00 |
|
Preston Skupinski
|
a9f15f133b
|
set the n bit of the p status register as required and a few bug fixes otherwise
|
2011-05-04 22:39:19 -04:00 |
|
Preston Skupinski
|
94af723baa
|
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
|
2011-05-03 00:00:40 -04:00 |
|
Preston Skupinski
|
5a349a4381
|
added BPL, BMI
|
2011-05-02 22:28:20 -04:00 |
|
Preston Skupinski
|
9795ea416b
|
added BCC, BCS, BEQ, BNE, BVC, BVS
|
2011-05-02 21:11:57 -04:00 |
|
Preston Skupinski
|
ddbf51d8ef
|
added BRA
|
2011-05-02 20:20:20 -04:00 |
|
Preston Skupinski
|
3c4e7264cf
|
remove unnecessary false parameter from function call
|
2011-05-02 19:02:55 -04:00 |
|
Preston Skupinski
|
8a401c9eba
|
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
|
2011-05-02 18:10:17 -04:00 |
|
Preston Skupinski
|
952b6ba840
|
added JMP absolute
|
2011-05-02 16:29:09 -04:00 |
|
Preston Skupinski
|
a5d690e9cb
|
quick fix to a silly mistake
|
2011-05-02 08:03:53 -04:00 |
|
Preston Skupinski
|
4828d9c1b1
|
added STA and LDA absolute long
|
2011-05-01 20:09:14 -04:00 |
|
Preston Skupinski
|
09fce7cff5
|
added STA direct page indirect
|
2011-05-01 17:38:04 -04:00 |
|
Preston Skupinski
|
96a8899204
|
added LDA direct page indirect (0xb2)
|
2011-05-01 16:52:48 -04:00 |
|
Preston Skupinski
|
982107a90b
|
fixed a mistake where I mixed up high byte and low byte in a few cases
|
2011-05-01 16:07:10 -04:00 |
|
Preston Skupinski
|
fc3dba463d
|
update the TODO
|
2011-05-01 13:54:49 -04:00 |
|
Preston Skupinski
|
93ae3ec6a0
|
check if transferred value is zero and set the z bit of the p status register
|
2011-05-01 13:46:28 -04:00 |
|
Preston Skupinski
|
b167d4c164
|
added TAX, TAY, TXA and TYA
|
2011-05-01 13:15:16 -04:00 |
|
Preston Skupinski
|
08593831b3
|
added TXY and TYX
|
2011-05-01 12:20:18 -04:00 |
|
Preston Skupinski
|
44696ed8ce
|
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
|
2011-04-30 23:54:07 -04:00 |
|
Preston Skupinski
|
67b19ee43a
|
make the examples a bit more obvious as to how to use
|
2011-04-30 22:35:41 -04:00 |
|
Preston Skupinski
|
a580ef2cdb
|
updated the TODO and added a .gitignore so my vim *swp files don't accidently wind up in here
|
2011-04-30 22:24:57 -04:00 |
|
Preston Skupinski
|
935d3093f4
|
added a README
|
2011-04-30 21:59:08 -04:00 |
|
Preston Skupinski
|
f809dfccc7
|
initial commit
|
2011-04-30 21:45:56 -04:00 |