jn
c739f8ecb3
Refactor physical memory address resolution code
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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
ee4b96db4f
Merge pull request #9 from neuschaefer/dev
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docs: Document how the peripherals work
2023-02-01 13:44:15 -08:00
jn
4467185339
docs: Document how the peripherals work
2023-02-01 20:16:40 +01:00
Ry
7719755a52
Cleanly exit if attempting to open non-existent disk
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Fixes issue #7 .
2023-01-30 14:09:00 -08:00
Ry
157841311d
Merge pull request #8 from neuschaefer/dev
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GitHub CI: Bump actions/checkout to v3
2023-01-29 17:00:41 -08:00
jn
8f0f6c9afd
GitHub CI: Bump actions/checkout to v3
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v2 is deprecated and causes a warning on the Actions page.
2023-01-29 23:28:18 +01:00
Ry
15cf497b89
Merge pull request #6 from neuschaefer/dev
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Miscellanea
2023-01-27 15:11:37 -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
Ry
c492194360
Merge pull request #5 from neuschaefer/headless
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Headless Mode
2023-01-26 17:08:36 -08:00
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
Ry
d9f03fe1aa
Merge pull request #4 from neuschaefer/help
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fox32: Add --help option
2023-01-20 15:09:44 -08:00
jn
43bc7e661e
fox32: Add --help option
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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
Ry
4a4d05332b
docs: Fix typo
2023-01-13 14:32:38 -08:00
Ry
85c1a87e09
docs: Add iflt and ifgteq to the condition codes list
2023-01-13 14:30:39 -08:00
Ry
6fb4fd884f
Merge pull request #3 from neuschaefer/lowercase
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docs: Spell fox32 in lowercase
2022-12-31 18:42:47 -08:00
jn
efdf7815e1
docs: Spell fox32 in lowercase
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As requested by @ry755: https://github.com/fox32-arch/fox32/pull/2#issuecomment-1368289018
2023-01-01 03:29:39 +01:00
Ry
a1d1e34e59
Merge pull request #2 from neuschaefer/doc
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fox32 architecture documentation
2022-12-31 14:40:54 -08:00
jn
571729dafa
docs: Add more documents (but they're unfinished)
2022-12-31 12:56:19 +01:00
jn
c27f3405cd
docs: Start a comprehensive CPU architecture document
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With docs/cpu.md, I aim to describe the CPU architecture as fully as
necessary to allow understanding it without having to look into emulator
source code anymore.
This currently leaves encoding.md a bit stranded, because I didn't quire
know how to integrate it into this new document.
2022-12-31 12:53:57 +01:00
jn
bf38917ee0
Fix number of operands for OP_FLP in instruction info table
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FLP takes a source operand.
2022-12-31 12:17:29 +01:00
Ry
9b6ac30abf
Add new logo to the README
2022-12-28 21:24:04 -08:00
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
1a01891a32
Update README
2022-10-26 18:21:15 -07:00
Ry
fab9f197b0
Update license
2022-10-26 18:20:55 -07:00
Ry
8fcf8fb03d
Generate fox32rom.h dynamically
2022-10-26 18:11:59 -07:00
Ry
e80d4cdb3b
Update gitignore
2022-10-26 18:05:04 -07:00
Ry
e0b75bb04c
Remove GitHub workflows for now
2022-10-26 18:04:53 -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
