Toby Jaffey
d780c4e69d
Add UVM32_SYSCALL_RAND to get a "true" random number from the host, as I want to play zigtris and not have it be the same every time.
2025-12-17 20:19:31 +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
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
147a9f2198
Split includes.
...
All code needs uvm32_sys.h, but uvm32_common_custom.h is optional (and has defs needed for demos)
2025-12-12 15:56:47 +00:00
Toby Jaffey
ed57b62f79
Add render and getkey syscalls, for host-sdl use.
2025-12-12 14:25:01 +00:00
Toby Jaffey
76fba39a21
Rework syscall ABI.
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Syscalls now accept two parameters, allowing for things like "int count = read(buf, len)"
Rather than providing safe signatures for syscalls, the user is now given helper functions to safely parse incoming values, c-strings and slices.
2025-12-09 21:51:35 +00:00
Toby Jaffey
6735b159ac
Make syscall names closer to libc
2025-12-08 16:28:00 +00:00
Toby Jaffey
9d6e6790e1
Cleanup syscall numbers
2025-12-08 12:53:33 +00:00
Toby Jaffey
61fe0e8647
Rename ioreq to syscall
2025-12-08 12:26:47 +00:00
Toby Jaffey
751f068486
Rework host/target interface to use ecall and proper syscalls instead of CSRs
2025-12-08 02:44:38 +00:00
Toby Jaffey
9e6f6c5a67
Added IOREQ_MILLIS and IOREQ_GETC to get current time and poll keyboard.
...
IOREQ_GETC implemented inefficiently, but is fine for demo purposes.
2025-12-07 20:29:10 +00:00
Toby Jaffey
c9d30b6d28
uvm32 initial version
2025-12-06 16:44:23 +00:00
