118 Commits

Author	SHA1	Message	Date
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