Preston Skupinski
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4998c9c4dc
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added operations that still need to be implemented to the TODO and fixed a few errors in the opcode map
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2011-05-22 20:07:29 -04:00 |
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Preston Skupinski
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bd89ee30e1
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added direct page indexed x indirect addressing for operations that support it
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2011-05-22 18:35:05 -04:00 |
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Preston Skupinski
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382a4b1fc6
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added absolute long indexed x addressing for operations that support it
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2011-05-22 15:16:44 -04:00 |
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Preston Skupinski
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1b1193abbf
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added absolute long addressing for many operations that support it
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2011-05-22 14:13:16 -04:00 |
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Preston Skupinski
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e046787510
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added direct page indirect long indexed y addressing for operations that support it
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2011-05-22 12:52:42 -04:00 |
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Preston Skupinski
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c469f3f3ae
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added direct page indirect long addressing mode for operations that support it
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2011-05-22 11:20:02 -04:00 |
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Preston Skupinski
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05f31579f1
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updated the TODO
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2011-05-15 20:21:02 -04:00 |
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Preston Skupinski
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7de24ebf33
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added COP
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2011-05-15 20:05:31 -04:00 |
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Preston Skupinski
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e37b40fb76
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added basic working interrupt handling and the BRK and RTI operations.
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2011-05-14 23:17:28 -04:00 |
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Preston Skupinski
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d446c727bf
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quick fix for a mistake in the opcode map
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2011-05-13 22:28:13 -04:00 |
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Preston Skupinski
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a2b0188024
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added stack relative indirect indexed y addressing for the operations that support it
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2011-05-13 22:24:05 -04:00 |
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Preston Skupinski
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179980e8c3
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added stack relative addressing for operations that support it
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2011-05-13 18:30:22 -04:00 |
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Preston Skupinski
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38505fdc8b
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added direct page indexed x, absolute indexed x and absolute indexed y addressing modes for CMP
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2011-05-13 15:24:00 -04:00 |
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Preston Skupinski
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7b821a0473
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added direct page indirect indexed y addressing mode for those operations that support it
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2011-05-13 14:58:10 -04:00 |
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Preston Skupinski
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e2341a63a1
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added XBA
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2011-05-13 13:51:10 -04:00 |
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Preston Skupinski
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0fd6d30fe3
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added TCS and TSC
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2011-05-13 12:46:35 -04:00 |
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Preston Skupinski
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8500c21618
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added TCD and TDC
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2011-05-13 12:18:16 -04:00 |
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Preston Skupinski
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20012291fc
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updated the TODO
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2011-05-12 16:23:03 -04:00 |
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Preston Skupinski
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e1f33e4af4
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fixed the emulation mode stack register and stack behavior to be a bit more accurate
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2011-05-12 00:57:29 -04:00 |
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Preston Skupinski
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b4f795f368
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added BRL
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2011-05-12 00:09:02 -04:00 |
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Preston Skupinski
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6acdd0d596
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changed the program bank register's name from pbr to k as it should be
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2011-05-11 22:44:48 -04:00 |
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Preston Skupinski
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758d336563
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added emulation mode page one swap wrapping
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2011-05-11 20:31:12 -04:00 |
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Preston Skupinski
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7f6ce58d56
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leave stack pointer alteration with byte pushing or pulling to the mmu object
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2011-05-11 17:31:50 -04:00 |
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Preston Skupinski
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4797ad0cd9
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more work on emulation mode support, making sure that any operation that checks for 8-bit registers checks for emulation mode first
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2011-05-11 12:41:07 -04:00 |
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Preston Skupinski
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25dbc8f08e
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begin work on emulation mode support
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2011-05-11 12:25:54 -04:00 |
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Preston Skupinski
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5347ced894
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added MVN and MVP
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2011-05-11 01:05:31 -04:00 |
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Preston Skupinski
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fc55d92515
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updated the TODO
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2011-05-09 19:23:26 -04:00 |
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Preston Skupinski
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02835299a7
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added JSL and RTL
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2011-05-09 14:43:47 -04:00 |
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Preston Skupinski
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3bbb03143b
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added a short test for JSR and RTS
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2011-05-09 14:20:00 -04:00 |
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Preston Skupinski
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9e1177864b
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added JSR and RTS, marking the beginning of subroutine support
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2011-05-09 14:14:41 -04:00 |
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Preston Skupinski
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65fa7836f4
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updated the TODO
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2011-05-09 12:49:49 -04:00 |
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Preston Skupinski
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4a48a49547
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added CLD, SED and CLV
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2011-05-09 12:37:09 -04:00 |
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Preston Skupinski
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6a4d4ceeaa
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added PER
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2011-05-09 12:21:50 -04:00 |
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Preston Skupinski
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8d68d281c7
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added PHD and PLD
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2011-05-09 00:56:00 -04:00 |
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Preston Skupinski
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81767302e4
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use the program bank register when fetching the byte representing the instruction to execute next
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2011-05-09 00:38:15 -04:00 |
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Preston Skupinski
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aa08ce700d
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added PHB and PLB
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2011-05-09 00:34:19 -04:00 |
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Preston Skupinski
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b956d2254f
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added PEA and PEI
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2011-05-09 00:01:16 -04:00 |
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Preston Skupinski
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98a058058f
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added PHP and PLP
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2011-05-08 23:46:22 -04:00 |
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Preston Skupinski
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9af3fe68ee
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added PHY, PLY, PHX, PLX
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2011-05-08 22:46:51 -04:00 |
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Preston Skupinski
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395e381c4f
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beginning of stack support with PHA and PLA
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2011-05-08 22:20:33 -04:00 |
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Preston Skupinski
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86ea739777
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added ROR and all of its addressing modes
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2011-05-08 17:46:40 -04:00 |
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Preston Skupinski
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b3488669a8
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added ROL and all of its addressing modes
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2011-05-08 17:03:23 -04:00 |
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Preston Skupinski
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b1c6249169
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added ASL and all of the addressing modes for it
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2011-05-08 15:02:50 -04:00 |
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Preston Skupinski
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937dfdb7d8
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make sure to add the direct page register to the location with the LSR direct page operation
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2011-05-08 14:12:29 -04:00 |
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Preston Skupinski
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e8e96e0164
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added LSR and all of the addressing modes for and rewrote the way in which I get the high byte from 16-bit data
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2011-05-08 14:03:59 -04:00 |
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Preston Skupinski
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c941641d6a
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added EOR and many addressing modes for it
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2011-05-08 01:11:11 -04:00 |
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Preston Skupinski
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8e3363b1e8
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added ORA and many addressing modes for it
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2011-05-08 00:58:50 -04:00 |
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Preston Skupinski
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4bac875b5c
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added AND and many addressing modes for it
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2011-05-08 00:41:57 -04:00 |
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Preston Skupinski
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c716e6e2f0
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added support for more addressing modes for SBC
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2011-05-07 22:42:11 -04:00 |
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Preston Skupinski
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e65caf36ec
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updated the TODO
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2011-05-07 22:19:39 -04:00 |