Toby Jaffey
adec69e1d7
Attempt to enable RV32 C extension. c.lw and c.sw are definitely broken somehow wrt MMIO memory.
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Examples built using C extensions, many fail in strange ways
2025-12-17 15:43:15 +00:00
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
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
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
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
2039de73f2
Rename getbuf to getslice
2025-12-13 23:15:06 +00:00
Toby Jaffey
8c97057809
Make extram uint8_t
2025-12-12 20:51:39 +00:00
Toby Jaffey
8158ac647c
Renaming and documentating header
2025-12-12 20:42:26 +00:00
Toby Jaffey
3722e4c267
Cleanup
2025-12-12 15:02:20 +00:00
Toby Jaffey
8598be727f
Provide a framebuffer 320x200 (RGBA8888) on render(addr,len) syscall, copy from that VM memory location to framebuffer.
2025-12-12 14:22:42 +00:00
Toby Jaffey
e7485d5972
SDL based host with extram mapped to framebuffer and simple gfx app to accompany it
2025-12-11 23:31:10 +00:00
