Radosław Kujawa
0c77eeb505
Remove leftover debug code.
2018-03-23 11:23:16 +01:00
Radosław Kujawa
5cb6f3488e
Further improvements and refactoring to logging.
2018-03-22 15:08:51 +01:00
Radosław Kujawa
47aca32da7
Add minimal logging functionality.
2018-03-21 16:22:29 +01:00
Radosław Kujawa
d51277235b
Use correct type for read(2)'ing.
2018-03-20 12:01:08 +01:00
Radosław Kujawa
a1785ae68d
Bus access debugging can be enabled run-time via boolean.
2017-02-28 10:49:57 +01:00
Radosław Kujawa
10b9778383
Make this compile.
2017-02-25 12:56:17 +01:00
Radosław Kujawa
edab91de3f
Refactor bus reads and writes to split common code.
2017-02-25 12:54:15 +01:00
Radosław Kujawa
1f072e1b11
Somewhat better serial device. Still one way only.
2017-02-25 02:04:12 +01:00
Radosław Kujawa
97c7709dc7
Fix device offset computation in bus writes.
2017-02-23 23:04:45 +01:00
Radosław Kujawa
6f875e13e7
Make serial device sort of work. One way.
2017-02-22 22:46:10 +01:00
Radosław Kujawa
dcf275939b
Make bus read/writes possible to devices mapped anywhere, not only 0.
2017-02-22 22:43:58 +01:00
Radosław Kujawa
7ab946c5df
First attempt at adding serial port emulated via named pipe on host.
2017-02-22 21:58:41 +01:00
Radosław Kujawa
53f0136cab
Add cleanup function for RAM device. Also cosmetics.
2017-02-21 11:11:21 +01:00
Radosław Kujawa
ec235796c0
Merge branch 'master' of github.com:rkujawa/rk65c02
2017-02-20 21:32:22 +01:00
Radosław Kujawa
43e38e567d
Further adjustments to get device subsystem working.
2017-02-20 21:29:52 +01:00
Radosław Kujawa
5cec9a9784
More work on devices subsystem.
2017-02-20 12:31:26 +01:00
Radosław Kujawa
7baefe9277
Attempt to design a semi-flexible device subsystem.
2017-02-19 21:45:15 +01:00
Radosław Kujawa
2608ab5846
Better comments.
2017-02-17 12:45:22 +01:00
Radosław Kujawa
cc61646ba9
Fix carry flag setting in comparison instructions. Resolve #2 .
2017-02-15 21:58:42 +01:00
Radosław Kujawa
de1ab25427
Make runtime disassembly optional.
2017-02-15 21:38:51 +01:00
Radosław Kujawa
0b83a263d7
Introduce trace functionality.
2017-02-15 21:32:12 +01:00
Radosław Kujawa
6afb4531d5
The rk65c02_exec should return immediately after hitting breakpoint.
2017-02-15 19:56:22 +01:00
Radosław Kujawa
3286891ea8
Add missing prototype of debug_breakpoint_remove to include file.
2017-02-15 19:55:48 +01:00
Radosław Kujawa
ea5c09d7c0
Report failure when malloc errors.
2017-02-15 19:55:15 +01:00
Radosław Kujawa
3363959b87
Add breakpoints.
2017-02-14 11:17:40 +01:00
Radosław Kujawa
7db9b2f7c6
RMB1 instruction is 2 byte long (opcode + one operand).
2017-02-13 21:54:10 +01:00
Radosław Kujawa
c23136800a
Unbreak BBR and BBS - they access zero page, don't act like immediate.
2017-02-13 18:39:51 +01:00
Radosław Kujawa
8de5574aab
Handle accessing bus in zero page relative mode just as in zero page.
...
It should make things less awkward and still work fine, as the only
instructions using this mode are BBS and BBR. These only use first
operand as the address in zero page to read data from.
2017-02-13 18:37:14 +01:00
Radosław Kujawa
0cbbce4eeb
Fix operands fetching for zero page relative addressing.
2017-02-13 09:37:11 +01:00
Radosław Kujawa
7f1c27af75
Fix carry flag handling for SBC.
2017-02-12 23:27:36 +01:00
Radosław Kujawa
23105b4861
Hopefully fix decimal mode handling. Hopefully.
2017-02-12 22:56:07 +01:00
Radosław Kujawa
8f4900a877
Add simplified assemble_single_implied for implied addressing mode.
2017-02-12 21:54:07 +01:00
Radosław Kujawa
0fc79103f8
Well, once again...
2017-02-12 21:51:20 +01:00
Radosław Kujawa
1995569ec1
Fix prototypes for assembler functions.
2017-02-12 21:50:16 +01:00
Radosław Kujawa
0bd7b85dea
Implement simpler to use assembly mode, straight to bus.
...
While here refactor existing assembly functions.
2017-02-12 16:47:06 +01:00
Radosław Kujawa
630daee702
Premilinary support for decimal mode.
...
While here add SED emulation. Implement BCD support for ADC instruction.
2017-02-10 22:23:06 +01:00
Radosław Kujawa
4c7a15f524
Add emulation of WAI instruction.
2017-02-09 21:53:45 +01:00
Radosław Kujawa
5cca703020
Add RTI emulation and test case.
2017-02-08 15:55:39 +01:00
Radosław Kujawa
299b7ee7d8
Add functions to dump stack.
...
Always useful.
2017-02-06 23:16:00 +01:00
Radosław Kujawa
272c4d0b7b
BIT instruction does not affect overflow flag in immediate mode.
2017-02-04 22:07:56 +01:00
Radosław Kujawa
ac48e5435f
Add preliminary support for interrupts.
2017-02-04 21:44:13 +01:00
Radosław Kujawa
51b47d707b
Set reason for stopping the emulation when stepping.
2017-02-03 22:21:43 +01:00
Radosław Kujawa
a255b093e9
Fix overflow flag for SBC.
2017-02-02 22:54:34 +01:00
Radosław Kujawa
1f8db85688
Fix pointer precedence. Should resolve #1 .
2017-02-02 20:58:30 +01:00
Radosław Kujawa
7f7fdad8dc
Enable GDB-specific debug symbols.
2017-02-02 16:22:53 +01:00
Radosław Kujawa
77ce27e4fc
Try to support assembling multi byte instructions.
2017-02-02 15:41:29 +01:00
Radosław Kujawa
9eff6d535b
Add functions to assemble mnemonics into machine code (into buffer).
2017-02-02 14:45:06 +01:00
Radosław Kujawa
941036615e
Add some null pointer checking asserts.
2017-02-02 14:43:44 +01:00
Radosław Kujawa
6711a8fe11
Fix bus space array indexing. Makes bus loading from buffer work.
2017-02-02 14:43:02 +01:00
Radosław Kujawa
3075ed87fa
Add ability to load things onto bus from buffer.
2017-02-02 12:06:41 +01:00
