Radosław Kujawa
|
249509fad0
|
Clean up unused function.
|
2017-02-02 11:00:32 +01:00 |
|
Radosław Kujawa
|
8e732f3b94
|
Make SBC somewhat less broken.
|
2017-02-01 22:15:16 +01:00 |
|
Radosław Kujawa
|
436810b79f
|
The overflow flag should be represented by "V".
|
2017-02-01 22:11:24 +01:00 |
|
Radosław Kujawa
|
92418b0f1f
|
Add SBC emulation.
Of dubious quality.
|
2017-02-01 14:35:50 +01:00 |
|
Radosław Kujawa
|
371856f6c7
|
Make emul_bbr/bbs/smb/rmb functions static.
Since they are only called by wrappers within the same file.
|
2017-01-31 23:30:49 +01:00 |
|
Radosław Kujawa
|
faa824e306
|
Implement emulation of ADC, plug the overflow test.
While here fix numerous test cases, lol.
|
2017-01-31 23:08:23 +01:00 |
|
Radosław Kujawa
|
afadfd8b13
|
Fix pointer usage.
|
2017-01-31 14:11:21 +01:00 |
|
Radosław Kujawa
|
44f723b016
|
Attempt to emulate the BRK instruction.
|
2017-01-31 00:31:28 +01:00 |
|
Radosław Kujawa
|
b21d884f8b
|
Clear the decimal flag on initialisation.
|
2017-01-31 00:31:04 +01:00 |
|
Radosław Kujawa
|
bc137b9390
|
Add emulation of BBR0-7 and BBS0-7 instructions.
|
2017-01-30 21:25:45 +01:00 |
|
Radosław Kujawa
|
1c72bd23a8
|
More meaningful comments.
|
2017-01-30 21:24:45 +01:00 |
|
Radosław Kujawa
|
5554de9411
|
Add TSB and TRB emulation.
|
2017-01-29 22:54:06 +01:00 |
|
Radosław Kujawa
|
923a9db649
|
Add emulation of SMB0-SMB7 instructions.
|
2017-01-29 21:34:58 +01:00 |
|
Radosław Kujawa
|
3c5162b0b9
|
Add emulation of branch instructions.
|
2017-01-29 13:57:51 +01:00 |
|
Radosław Kujawa
|
79b5a01d10
|
Add forgotten prototype of program_counter_branch().
|
2017-01-29 13:57:20 +01:00 |
|
Radosław Kujawa
|
e0fa334e3e
|
Fix relative address pritning in disassembly.
|
2017-01-29 13:55:53 +01:00 |
|
Radosław Kujawa
|
f5a4f45127
|
Add function setting the PC for branches.
|
2017-01-29 13:29:17 +01:00 |
|
Radosław Kujawa
|
762f140efd
|
Better operand formatting in disassembly.
|
2017-01-29 13:08:32 +01:00 |
|
Radosław Kujawa
|
bb3f77ec7f
|
Add JSR and RTS emulation and tests.
|
2017-01-29 11:47:34 +01:00 |
|
Radosław Kujawa
|
4a8fbfbaeb
|
Add CPX and CPY emulation and test cases.
|
2017-01-28 14:04:20 +01:00 |
|
Radosław Kujawa
|
3640a162a3
|
Add CMP emulation and test cases.
|
2017-01-28 13:26:51 +01:00 |
|
Radosław Kujawa
|
f3205e7272
|
Add CLI and SEI emulation and test case.
|
2017-01-28 11:19:34 +01:00 |
|
Radosław Kujawa
|
ee66f9c78c
|
Add emulation and test for CLV instruction.
|
2017-01-28 11:12:25 +01:00 |
|
Radosław Kujawa
|
735c3677ce
|
Correct address calculation for absolute indirect and absolute indirect X modes.
|
2017-01-28 00:10:22 +01:00 |
|
Radosław Kujawa
|
8d2d694158
|
Implement (partial) JMP emulation and basic test for it.
|
2017-01-27 22:28:33 +01:00 |
|
Radosław Kujawa
|
05cedfb1f5
|
Also print program counter when dumping regs.
|
2017-01-27 22:28:09 +01:00 |
|
Radosław Kujawa
|
9da9f61f5a
|
There's one more field in that generated header. Adjust.
|
2017-01-27 22:27:30 +01:00 |
|
Radosław Kujawa
|
2430cfd722
|
Branch and jump instrucitons need special PC treatment.
|
2017-01-27 20:43:08 +01:00 |
|
Radosław Kujawa
|
9294891a23
|
Remove unused variable.
|
2017-01-27 20:43:02 +01:00 |
|
Radosław Kujawa
|
28a5d54510
|
Add ASL and LSR emulation.
|
2017-01-27 17:14:56 +01:00 |
|
Radosław Kujawa
|
f63c00b192
|
Add RMB emulation.
|
2017-01-27 13:18:02 +01:00 |
|
Radosław Kujawa
|
1f581d3fd3
|
Add function to dump registers state onto stdout.
|
2017-01-27 11:27:14 +01:00 |
|
Radosław Kujawa
|
646c7d1905
|
Some opcodes also write data to accumulator.
|
2017-01-27 11:03:50 +01:00 |
|
Radosław Kujawa
|
8d5482ad09
|
Remove x bit from the awk program, it is never started directly.
|
2017-01-27 10:14:32 +01:00 |
|
Radosław Kujawa
|
0c63342ad7
|
Add comments explaing what these functions do.
|
2017-01-27 10:13:32 +01:00 |
|
Radosław Kujawa
|
b7f1b8095b
|
Add emulation of INC and DEC.
|
2017-01-27 00:04:47 +01:00 |
|
Radosław Kujawa
|
1da576c821
|
Merge branch 'master' of github.com:rkujawa/rk65c02
|
2017-01-26 17:27:22 +01:00 |
|
Radosław Kujawa
|
80b6848108
|
Preliminary support for stepping.
|
2017-01-26 13:11:00 +01:00 |
|
Radosław Kujawa
|
941e89173a
|
Add struct with info about reason for stopping emulation.
|
2017-01-26 12:52:40 +01:00 |
|
Radosław Kujawa
|
285d2ee828
|
Initial state of the CPU has IRQ disable bit set.
|
2017-01-25 21:17:18 +01:00 |
|
Radosław Kujawa
|
13ef3e2d08
|
Add PHX, PLX, PHY, PLY emulation and test cases.
|
2017-01-25 13:14:00 +01:00 |
|
Radosław Kujawa
|
acc0fad32e
|
Add emulation of BIT instruction and test cases for it.
|
2017-01-25 10:10:00 +01:00 |
|
Radosław Kujawa
|
7915657355
|
Add bit testing macro.
|
2017-01-25 10:09:50 +01:00 |
|
Radosław Kujawa
|
95db0b7dd2
|
Add commented out debug message.
|
2017-01-25 10:09:38 +01:00 |
|
Radosław Kujawa
|
47028b0e26
|
Add commented out debug message.
|
2017-01-24 22:18:21 +01:00 |
|
Radosław Kujawa
|
90b6c06e32
|
Fix missing breaks in indirect zero page handling switch.
|
2017-01-24 22:18:02 +01:00 |
|
Radosław Kujawa
|
39aaca5034
|
Correct indirect zero page Y behaviour.
|
2017-01-24 16:37:10 +01:00 |
|
Radosław Kujawa
|
20a39a8d6c
|
Correct wrong ORA indirect zero page X size.
|
2017-01-24 16:36:39 +01:00 |
|
Radosław Kujawa
|
342a188314
|
Fix wrong mnemonic for absolute ORA.
|
2017-01-23 15:39:10 +01:00 |
|
Radosław Kujawa
|
6c3a203cdc
|
Support all AND addressing modes.
|
2017-01-23 15:28:14 +01:00 |
|
Radosław Kujawa
|
0dd63f2bf0
|
Add ROL and ROR emulation. Too old to ror and to rol!
|
2017-01-23 15:25:32 +01:00 |
|
Radosław Kujawa
|
f9708ca049
|
Add STA, STY, STX emulation.
|
2017-01-23 15:02:21 +01:00 |
|
Radosław Kujawa
|
ee8a16a5ba
|
Add ORA and EOR emulation.
|
2017-01-23 14:53:05 +01:00 |
|
Radosław Kujawa
|
6b7298cf8d
|
Avoid intermediate variable in AND emulation.
|
2017-01-23 14:45:46 +01:00 |
|
Radosław Kujawa
|
aee947ad1f
|
Don't forget to add LDY to CSV...
|
2017-01-23 14:44:55 +01:00 |
|
Radosław Kujawa
|
552fad8a7e
|
LDY emulation.
|
2017-01-23 14:43:54 +01:00 |
|
Radosław Kujawa
|
5c38e5f05a
|
Add emulation of LDX, TXA, TYA, TXS, TAX, TAY, TSX.
|
2017-01-23 14:38:50 +01:00 |
|
Radosław Kujawa
|
ce492e6cd3
|
Support all addressing variants of STZ.
|
2017-01-23 13:46:17 +01:00 |
|
Radosław Kujawa
|
05f6599681
|
BSD/OS X awk does not like hexadecimal constants.
|
2017-01-23 13:41:31 +01:00 |
|
Radosław Kujawa
|
9c88afae2a
|
BBRx and BBSx instructions have zero page relative addressing.
Add zero page relative as a separate addressing type and adjust
opcode definitions for these two type of opcodes.
|
2017-01-23 12:17:06 +01:00 |
|
Radosław Kujawa
|
ee16c64310
|
Implement absolute X, absolute Y addressing.
|
2017-01-23 10:48:37 +01:00 |
|
Radosław Kujawa
|
452e4b3806
|
Implement indirect zero page with X and indirect zero page with Y addressing.
|
2017-01-23 10:29:19 +01:00 |
|
Radosław Kujawa
|
9e32c3e493
|
Try to emulate all variants of LDA.
But some addressing modes are still unimplemented...
|
2017-01-23 10:27:51 +01:00 |
|
Radosław Kujawa
|
87c424557e
|
Implement aboslute addressing mode.
|
2017-01-23 00:00:45 +01:00 |
|
Radosław Kujawa
|
5eede9333b
|
Add emulation of PHP, PLP instructions and test cases for them.
|
2017-01-22 23:01:24 +01:00 |
|
Radosław Kujawa
|
074ecdccc3
|
No-operand INC has accumulator addressing mode, not implied.
|
2017-01-22 22:44:08 +01:00 |
|
Radosław Kujawa
|
1460817230
|
Correct mnemonic for LDX with Zero Page,Y addressing.
|
2017-01-22 22:40:32 +01:00 |
|
Radosław Kujawa
|
fb7d4b28e7
|
Add DEX, DEY emulation and test cases for them.
|
2017-01-22 22:35:50 +01:00 |
|
Radosław Kujawa
|
52247f0ce4
|
Implement CLC, SEC and test for them.
|
2017-01-22 13:50:04 +01:00 |
|
Radosław Kujawa
|
473e0e2636
|
Add INX, INY emulation and test cases.
Some comments while here.
|
2017-01-22 13:07:21 +01:00 |
|
Radosław Kujawa
|
e763ca0d3a
|
Avoid getting instruction definition again when emulating.
While here try to make program counter incrementation more universal
and flexible.
|
2017-01-22 11:07:19 +01:00 |
|
Radosław Kujawa
|
c7633feb87
|
Add STZ emulation.
|
2017-01-21 21:46:35 +01:00 |
|
Radosław Kujawa
|
86c9c6414c
|
Add function to write data onto bus according to choosen addressing mode.
|
2017-01-21 21:43:31 +01:00 |
|
Radosław Kujawa
|
8abbb88d0d
|
Fix dependencies for static lib building.
|
2017-01-21 21:41:19 +01:00 |
|
Radosław Kujawa
|
b6ed8892bb
|
Add generation of emulation.h to Makefile.
|
2017-01-21 14:58:00 +01:00 |
|
Radosław Kujawa
|
1802bfbd1d
|
Add missing includes, fix typo.
|
2017-01-21 14:57:49 +01:00 |
|
Radosław Kujawa
|
e3abea91ef
|
Add awk script to automatically generate emulation.h from CSV.
|
2017-01-21 14:52:38 +01:00 |
|
Radosław Kujawa
|
0d5916eb7d
|
Gotta generate header for emulation functions from CSV.
|
2017-01-21 12:08:00 +01:00 |
|
Radosław Kujawa
|
5ca671aecb
|
Print value of PC register when unimplemented opcode encountered.
|
2017-01-21 09:13:43 +01:00 |
|
Radosław Kujawa
|
1820418c62
|
Adjust C header generation to take CSV header into account.
|
2017-01-20 23:23:25 +01:00 |
|
Radosław Kujawa
|
d2dc51cbd3
|
Add a header. Now looks nicer on GitHub!
|
2017-01-20 23:23:04 +01:00 |
|
Radosław Kujawa
|
51de051e19
|
Stop on unimplemented instruction.
|
2017-01-20 23:18:00 +01:00 |
|
Radosław Kujawa
|
2adf864f4f
|
Debugging symbols by default.
|
2017-01-20 23:17:35 +01:00 |
|
Radosław Kujawa
|
c083114c12
|
Increment stack pointer before poping.
|
2017-01-20 23:16:02 +01:00 |
|
Radosław Kujawa
|
86e00e651d
|
Make this actually compile.
|
2017-01-20 22:38:46 +01:00 |
|
Radosław Kujawa
|
0dc7dac6a3
|
Add PLA, PHA emulation.
|
2017-01-20 22:26:13 +01:00 |
|
Radosław Kujawa
|
7862703c88
|
Add functions to pop/push emulated CPU stack.
|
2017-01-20 22:03:03 +01:00 |
|
Radosław Kujawa
|
a50da41388
|
Implement AND emulation and test.
|
2017-01-20 10:41:56 +01:00 |
|
Radosław Kujawa
|
3bcc7bb096
|
Introduce instruction-independent status adjustment functions.
For now only for negative and zero. Also use them in LDA emulation.
|
2017-01-20 10:25:19 +01:00 |
|
Radosław Kujawa
|
5201cfdc87
|
Print operand hex vals during disassembly.
|
2017-01-20 09:46:33 +01:00 |
|
Radosław Kujawa
|
14233cf3ca
|
Implement status flags for LDA emulation.
|
2017-01-20 09:11:34 +01:00 |
|
Radosław Kujawa
|
bcedb50e48
|
Clean up.
|
2017-01-20 09:11:22 +01:00 |
|
Radosław Kujawa
|
b498da3ac8
|
Add CLI skeleton.
|
2017-01-19 23:49:27 +01:00 |
|
Radosław Kujawa
|
f42f88c148
|
Add status register bits.
|
2017-01-19 14:06:19 +01:00 |
|
Radosław Kujawa
|
6b7ddbf865
|
LDA zero page emulation and test for it.
|
2017-01-19 11:49:05 +01:00 |
|
Radosław Kujawa
|
49b70f0e1f
|
Make instruction data read more flexible and split from emulation of particular instruction.
|
2017-01-19 10:59:35 +01:00 |
|
Radosław Kujawa
|
87cafb607f
|
Support loading ROMs from files, adjust nop test case.
|
2017-01-19 00:57:09 +01:00 |
|
Radosław Kujawa
|
e7380477a9
|
Remove debug printfs.
|
2017-01-19 00:20:53 +01:00 |
|
Radosław Kujawa
|
92914d4aa0
|
Experiment with emulating opcode requring operands.
Immediate lda now works.
|
2017-01-18 22:37:00 +01:00 |
|
Radosław Kujawa
|
e7e30292d5
|
Fix incorrect instruction sizes.
|
2017-01-18 22:11:13 +01:00 |
|
Radosław Kujawa
|
380b524a51
|
Assign a separate identifier for all invalid nops.
|
2017-01-18 22:05:50 +01:00 |
|
Radosław Kujawa
|
52ce9bff8c
|
Preliminary support for emulation of instructions.
Some refactoring while here.
|
2017-01-18 17:18:19 +01:00 |
|
Radosław Kujawa
|
f106e227cd
|
Prepare structures for adding emulation of instructions.
|
2017-01-18 15:45:28 +01:00 |
|
Radosław Kujawa
|
d6876b38a1
|
Write down all 65C02 instructions.
|
2017-01-18 14:37:44 +01:00 |
|
Radosław Kujawa
|
3032baeac4
|
Temporarily disable assert checking if instr was implemented.
|
2017-01-18 14:37:24 +01:00 |
|
Radosław Kujawa
|
bd0eeea144
|
Adjust build process and instruction-related funcs.
Due to new dynamically build 65c02isa.h header.
|
2017-01-18 12:09:14 +01:00 |
|
Radosław Kujawa
|
611f51201f
|
Generate instruction set from CSV file and awk script.
|
2017-01-18 12:08:55 +01:00 |
|
Radosław Kujawa
|
372dca2db8
|
Remove instruction set.
|
2017-01-18 12:08:07 +01:00 |
|
Radosław Kujawa
|
e36a9c34fb
|
Add accumulator addressing mode handling.
|
2017-01-18 11:12:37 +01:00 |
|
Radosław Kujawa
|
23802b176f
|
Instruction set definition is now private to 65c02isa.c, has API.
Minor refactoring while here, splitting stuff.
|
2017-01-17 14:29:20 +01:00 |
|
Radosław Kujawa
|
aa362b81fd
|
Add structs representing current emulator state.
|
2017-01-17 11:28:42 +01:00 |
|
Radosław Kujawa
|
d515954f44
|
Move reg_state struct to header, rename op to opcode.
|
2017-01-17 11:18:48 +01:00 |
|
Radosław Kujawa
|
0da3d6dc5f
|
Instruction addressing modes now handled with enum.
While here imlpement instruciton printing for all addressing modes.
|
2017-01-17 00:42:31 +01:00 |
|
Radosław Kujawa
|
a0821195c7
|
Also build static library and use it for tests.
|
2017-01-16 23:54:46 +01:00 |
|
Radosław Kujawa
|
64e71a081f
|
Since this is a library, off with the main function now.
|
2017-01-16 23:54:24 +01:00 |
|
Radosław Kujawa
|
f298eaade0
|
rk65c02 is now a shared library.
|
2017-01-16 22:56:07 +01:00 |
|
Radosław Kujawa
|
b446b08271
|
Add missing argument to bus_finish() prototype.
|
2017-01-16 22:55:42 +01:00 |
|
Radosław Kujawa
|
26384ce27d
|
Add asserts to freeing the bus.
|
2017-01-16 21:34:56 +01:00 |
|
Radosław Kujawa
|
e7c81c0fbc
|
Initial import, skeleton...
|
2017-01-16 19:35:28 +01:00 |
|