Files
symphony_stdlib/errno.asm
T

24 lines
670 B
NASM
Executable File

; Error numbers should be 16 bit ODD numbers, so they can be loaded as immediates
; and can be checked with:
;
; qcall falible_function
; jne falible_ok ; Jump no error
; ; handle error
; falible_ok:
; ; Happy path
; ; ...
; OR
; qcall falible_function
; je handle_error ; Jump if error
; ; Happy path
; ; ...
; handle_error:
; ; handle error
pub const OK = 0x0000
pub const SCREEN_INVALID_MODE = 0x0001
pub const SCREEN_INVALID_WIDTH = 0x0003
pub const SCREEN_FB_TOO_SMALL = 0x0005
; Extended error codes, these would require loading a 32 bit value.
pub const EXT_OK = 0x00000000