Todo List

File biosfont.h

• More user-friendly way to fetch/print DC-specific icons.

File syscalls.h

• syscall_sysinfo_icon(): Discover + document icon format.
• Look into additional syscall vector for GD-ROM - 0x0C0000C0

File thread.h

• Remove deprecated thread mode API
• Remove global extern pointer to current thread

File time.h

• Implement _POSIX_TIMERS, which requires POSIX signals back-end.
• Implement thread-specific CPU time

File trap.h

• state management, propagation
• TRAPA instruction inline ASM
• document reserved TRAP codes

File ubc.h

Add support for using the DBR register as the breakpoint handler.

Global vmu_set_icon (const char *vmu_icon)

Prevent this routine from broadcasting to rear VMUs.