19 commits

Author	SHA1	Message	Date
Toby Jaffey	e07eeab043	Make yield a regular syscall taking an argument. ... Allows "wait for interrupt"/"wait for event" type operation where VM code blocks until the host has something for it.	2025-12-10 10:35:18 +00:00
Toby Jaffey	9baedb42e8	Add a stack canary, setup on boot	2025-12-10 01:00:36 +00:00
Toby Jaffey	9596838a4b	Recursive maze demo, causes big stack usage	2025-12-09 23:29:16 +00:00
Toby Jaffey	428bd7cc6b	Use signal, for linux	2025-12-09 22:20:11 +00:00
Toby Jaffey	76fba39a21	Rework syscall ABI. ... 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	941cd141f4	Cleanup terminal on ctrl-c	2025-12-09 09:49:30 +00:00
Toby Jaffey	7b7b08e626	Show cursor on exit	2025-12-09 01:18:14 +00:00
Toby Jaffey	71db6d1dea	Reset terminal back to original state on exit	2025-12-09 00:50:30 +00:00
Toby Jaffey	de689bdeaf	Resume after hang (with warning)	2025-12-08 21:19:59 +00:00
Toby Jaffey	6735b159ac	Make syscall names closer to libc	2025-12-08 16:28:00 +00:00
Toby Jaffey	c691c3ebdf	Fix overly long event name	2025-12-08 13:04:05 +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	43bba100c1	Fix missing header on linux	2025-12-08 10:22:08 +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	a305fce466	zigtris is > 16KB, so use 32KB for default host.	2025-12-07 21:12:48 +00:00
Toby Jaffey	cd95e63af5	Flush output regularly, don't wait for keyboard.	2025-12-07 20:58:32 +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	3e4c87fa1d	Rename emulator to host, for clarity	2025-12-06 22:37:10 +00:00