Toby Jaffey
652094c289
Unmodified compressed instruction support
2025-12-17 14:08:46 +00:00
Toby Jaffey
3d83844d5c
Fix markdown blip
CI / test (ubuntu-latest) (push) Waiting to run
2025-12-17 11:07:57 +00:00
Toby Jaffey
0bbe373b56
Link to syscall.md
CI / test (ubuntu-latest) (push) Waiting to run
2025-12-17 07:46:08 +00:00
Toby Jaffey
6989c3e067
Link to big-endian fork
CI / test (ubuntu-latest) (push) Waiting to run
2025-12-16 22:36:08 +00:00
Toby Jaffey
8c68d48f80
Add some documentation on syscalls and argument handling
2025-12-16 22:04:50 +00:00
Toby Jaffey
4d3b393205
Add host-sdl info
2025-12-16 19:30:14 +00:00
Toby Jaffey
d0407c074f
Update all of the Emacs mode style comments, so they register in github as C.
CI / test (ubuntu-latest) (push) Waiting to run
2025-12-16 17:06:49 +00:00
Toby Jaffey
ff3827f3a6
Merge pull request #5 from cnlohr/fix-language-misidentification
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CI / test (ubuntu-latest) (push) Waiting to run
Fix language misidentification
2025-12-16 07:27:15 +00:00
cnlohr
3409fd1fb6
Fix language misidentification
2025-12-15 17:57:47 -08:00
Toby Jaffey
53b5eeb256
Add a simple statistical profiler
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CI / test (ubuntu-latest) (push) Waiting to run
Enabled by -p, will sample program counter and store frequency. Using "-i 1" will make execution pause on every instruction and sample PC.
host-sdl -p -i 1 foo.bin | grep times > log.txt
cat log.txt | sort -n -k4
Can match addresses with
riscv64-elf-objdump -S -d -f foo.bin
2025-12-15 14:10:49 +00:00
Toby Jaffey
6a6d7f1832
Only call checkKeys() when rendering, as it will pause VM
2025-12-15 14:07:00 +00:00
Toby Jaffey
09985655a2
Fix host-sdl/doom audio. Have app ask via syscall if audio can be rendered before sending, else any mismatch in rates will cause queue over/underflow in host-sdl.
2025-12-15 10:48:10 +00:00
Toby Jaffey
4e61e3bd4a
Make self and mandel examples a bit smaller
CI / test (ubuntu-latest) (push) Waiting to run
2025-12-15 01:12:47 +00:00
Toby Jaffey
4741900562
Tick agnes before drawing each screen, but no faster.
2025-12-15 00:59:27 +00:00
Toby Jaffey
035608b04a
Add agnes NES emulator (very slow).
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Add -W <n> -H <n> width and height options to host-sdl
2025-12-15 00:37:12 +00:00
Toby Jaffey
2e90bfa812
Doom binary with audio
CI / test (ubuntu-latest) (push) Waiting to run
2025-12-14 23:34:06 +00:00
Toby Jaffey
39e7dddc5a
Quick and dirty sound for DOOM. Samplerate seems off, but it's just a demo.
2025-12-14 23:32:34 +00:00
Toby Jaffey
e524ea4815
Fix sticky keys in doom. host-sdl only reported the last key pressed, now uses a circular buffer.
2025-12-14 22:39:24 +00:00
Toby Jaffey
49a94ca174
Add BLT test
2025-12-14 21:53:54 +00:00
Toby Jaffey
83276f98e4
Move shared.h
2025-12-14 21:41:01 +00:00
Toby Jaffey
93898a5baa
Rename
2025-12-14 21:38:24 +00:00
Toby Jaffey
6a4118e420
Add AUIPC test
2025-12-14 21:38:05 +00:00
Toby Jaffey
f917ba38ff
Tighten up internal vs external functions, which lets optimiser do a better job, self.bin about 10% smaller.
2025-12-14 19:51:36 +00:00
Toby Jaffey
07bab3cca6
Rebuild precompiled bins
2025-12-14 19:37:00 +00:00
Toby Jaffey
9bda566997
Move internal static garbage into vmst.
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Potentially, this could have ended up being non-zero when used by concurrent threads.
2025-12-14 19:34:58 +00:00
Toby Jaffey
1e7343d385
Map extram to same fuzz buffer
2025-12-14 19:28:15 +00:00
Toby Jaffey
28ce517710
Remove label
2025-12-14 18:56:41 +00:00
Toby Jaffey
585a945b18
Report "true" code coverage by including mini-rv32ima.h
2025-12-14 18:46:34 +00:00
Toby Jaffey
7d064dd11d
Fix indent
2025-12-14 18:36:18 +00:00
Toby Jaffey
e5fd17aff6
Fix issues with unaligned memory bus rd/wr. Improve fuzzing.
2025-12-14 18:35:00 +00:00
Toby Jaffey
5fb03b7d66
Remove RV32 breakpoints and interrupts, to save a tiny bit of code size.
CI / test (ubuntu-latest) (push) Waiting to run
2025-12-14 15:05:35 +00:00
Toby Jaffey
065d2c64aa
TinyGL example
2025-12-14 14:45:10 +00:00
Toby Jaffey
7313047fd1
Simple fuzzer
2025-12-14 12:34:53 +00:00
Toby Jaffey
0736381925
Slim down mini-rv32imaa by removing zicsr and atomics - which are unused.
2025-12-14 11:49:28 +00:00
Toby Jaffey
861c75d80e
Remove cycle counting and timers from mini-rv32ima
2025-12-14 11:19:23 +00:00
Toby Jaffey
a693fed59c
Show coverage report for all uvm32
2025-12-14 11:15:59 +00:00
Toby Jaffey
5dc9acdf3d
When a trap occurs in mini-rv32ima, always pass to the host rather than allowing running code to handle it. This would be important for a real OS, but the aim of uvm32 is embeddable logic - not full emulation.
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As all traps are caught by host, begin testing mini-rv32ima internals by checking PC oob and PC alignment.
2025-12-14 11:00:45 +00:00
Toby Jaffey
be5dbbfa44
Latest doom binary (since crt0.S changes)
2025-12-14 11:00:26 +00:00
Toby Jaffey
8d67bf2fc3
Latest maze binary
2025-12-14 10:59:59 +00:00
Toby Jaffey
a635846e69
Remove -fpeel-loops, now that real issue has been fixed.
2025-12-14 09:50:14 +00:00
Toby Jaffey
044d600b86
Merge branch 'main' of github.com:ringtailsoftware/uvm32
2025-12-14 09:42:31 +00:00
Toby Jaffey
7a39a69f3d
Move label
2025-12-14 09:42:03 +00:00
Toby Jaffey
14383da04d
Only deploy from main branch
2025-12-14 09:41:11 +00:00
Toby Jaffey
b7269c23b3
Merge pull request #2 from 1player/main
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apps/maze: fix possible stack overflow
2025-12-14 09:37:50 +00:00
Stéphane Travostino
cdfae7d453
apps/maze: fix possible stack overflow
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The original code this app is inspired from uses rand(), which returns
a number >= 0.
mulberry32() on the other hand can return a negative number, in which
case will overflow the accesses in the dirs array. Fix that by forcing
the result to be unsigned.
2025-12-14 10:15:04 +01:00
Toby Jaffey
2c5f1e33fe
Label
CI / test (ubuntu-latest) (push) Waiting to run
2025-12-14 03:26:41 +00:00
Toby Jaffey
079cf2c9bd
Add CI workflow to create a coverage badge via github pages
2025-12-14 03:08:59 +00:00
Toby Jaffey
cfc1286874
Regenerate binaries, now default crt0 has changed
2025-12-14 01:36:47 +00:00
Toby Jaffey
6adbc53ad9
Remove impossible states
2025-12-14 01:34:59 +00:00
Toby Jaffey
a5305d64dc
Test that invalid lX opcodes trigger mini-rv32 internal core error
2025-12-14 01:21:42 +00:00
