Commit Graph

132 Commits

Author SHA1 Message Date
jn
727dc8e0d2 Enable input on the serial port 2023-02-02 10:49:07 +01:00
jn
c739f8ecb3 Refactor physical memory address resolution code
The physical memory layout is the same whether we use the MMU or not, so
let's implement it only once.
2023-02-01 23:51:15 +01:00
Ry
7719755a52 Cleanly exit if attempting to open non-existent disk
Fixes issue #7.
2023-01-30 14:09:00 -08:00
jn
4758c45171 Fix skipping of CMP instructions 2023-01-27 17:37:10 +01:00
jn
6ddf60fba6 Handle division by zero instead of crashing 2023-01-27 11:33:26 +01:00
jn
1d9de64e5f Print IP and SP in debug mode 2023-01-27 11:33:26 +01:00
jn
17f452bacf Add headless mode 2023-01-26 22:24:16 +01:00
jn
c1652c34b0 Initialize VM state and scan arguments before initializing SDL 2023-01-26 22:21:41 +01:00
jn
43bc7e661e fox32: Add --help option
It's easier to type --help than to remember the options or look at the
source code.
2023-01-20 16:36:37 +01:00
jn
bf38917ee0 Fix number of operands for OP_FLP in instruction info table
FLP takes a source operand.
2022-12-31 12:17:29 +01:00
Ry
14dc43710f Add support for dropping files onto the window to mount them as a disk 2022-12-26 18:22:21 -08:00
Ry
8b5472519e Update comment 2022-12-26 18:02:25 -08:00
Ry
30f76602a7 Add support for cross-compiling for Windows 2022-12-26 17:22:48 -08:00
Ry
3246859ff2 Revert previous commit 2022-12-25 23:38:26 -08:00
Ry
acbfa82a18 If halted, report that the entire tick was completed 2022-12-25 23:24:03 -08:00
Ry
82668e10d3 Fix errors in the RTC implementation of month and year 2022-12-25 22:58:18 -08:00
Ry
ea53fb151c Implement the rest of the RTC 2022-12-25 21:45:31 -08:00
Ry
eae21dd08b Fix an issue with the mouse held state 2022-12-25 15:34:36 -08:00
Ry
4bb07c3c52 Change SDL include path 2022-11-08 17:14:49 -08:00
Ry
565685776a Add power control port 2022-10-27 22:45:58 -07:00
Ry
3d1dff8495 BRK exceptions should resume *after* the BRK instruction 2022-10-27 19:03:34 -07:00
Ry
a0fa0361ae Add disk write support 2022-10-27 16:02:17 -07:00
Ry
9396931592 Better keyboard handling 2022-10-27 16:01:51 -07:00
Ry
4952a4b504 Show CPU core error messages if debug output is enabled 2022-10-27 15:33:38 -07:00
Ry
5b00bcef56 Better argument parsing 2022-10-27 15:30:50 -07:00
Ry
e402e96cfa Build Linux binaries of each commit 2022-10-26 18:49:26 -07:00
Ry
3608796e88 Fix a few formatting things 2022-10-26 18:03:00 -07:00
Ry
23478340d2 Use absolute mouse position instead of grabbing the cursor 2022-10-26 18:03:00 -07:00
hyenasky
072cb452e1 make writes to readonly pages cause a page fault correctly 2022-10-26 18:03:00 -07:00
hyenasky
7d383cff3c add int instruction, make cross-page accesses work 2022-10-26 18:03:00 -07:00
Ry
b06f6de79c Implement a somewhat hacky MMU 2022-10-26 18:03:00 -07:00
Ry
8f0c4e6c51 Add docs, add exception handling, rearrange some instrs 2022-10-26 18:03:00 -07:00
Ry
847e476d76 Rename key_t to keycode_t 2022-10-26 18:03:00 -07:00
Ry
29f0fb96e6 Implement keyboard, bump rom version to 0.5.1
Co-authored-by: Lua MacDougall <lua@foxgirl.dev>
2022-10-26 18:02:50 -07:00
Ry
7004b61606 Implement disk controller 2022-10-26 18:02:50 -07:00
Ry
2e9d1be053 Implement mouse support 2022-10-23 17:18:05 -07:00
Ry
7aeb636392 Read the correct byte for the overlay alpha channel 2022-10-23 16:51:03 -07:00
Ry
53cbc0d96c Implement overlays
Co-authored-by: Lua MacDougall <lua@foxgirl.dev>
2022-10-23 13:16:40 -07:00
Ry
979a8b2cfc Use the correct pixel format 2022-10-22 22:33:03 -07:00
Ry
0f02835148 Properly handle the MainScreen struct everywhere; update rom 2022-10-22 18:50:51 -07:00
Ry
f094b712af Some cleanup 2022-10-22 18:04:49 -07:00
Ry
5804084401 Initial commit 2022-10-22 18:00:51 -07:00
Ry
fb9f8ccf93 Remove Rust emulator 2022-10-26 18:02:30 -07:00
Ry
675a39e813 Allow typing the * key 2022-10-16 18:52:03 -07:00
Ry
338b6fe496 Only allow one of: exception, int, or soft int to occur during a cycle 2022-10-10 18:41:18 -07:00
Ry
b496d2eb90 If popping directly to memory fails, don't change the stack pointer 2022-10-10 18:39:14 -07:00
Ry
bfc0ae96d1 Check if all addresses are writable before doing the actual writes 2022-10-10 17:26:40 -07:00
Ry
6fb6d07431 Rework the interrupt system a little bit and allow toggling debug output 2022-09-20 00:24:38 -07:00
Ry
42f26a48e7 Same as previous commit but I forgot about the write functions oops 2022-09-18 22:15:45 -07:00
Ry
5c5a8722e4 Possibly fix an issue where a 32 bit page fault would cause 4 PFs
Same for 16 bit page faults causing 2 page faults, one for each byte.
2022-09-18 22:09:29 -07:00