minix/lib/i86/em/em_error.s
2009-11-09 10:26:00 +00:00

41 lines
468 B
ArmAsm

.define .error
.define .Xtrp
! ax is trap number
! all registers must be saved
! because return is possible
! May only be called with error no's <16
.text
.error:
push bp
push si
push di
push dx
push cx
push bx
push ax
mov cx,ax
mov bx,#1
sal bx,cl
.extern .ignmask
.extern .trp
test bx,.ignmask
jne 2f
call .trp
2:
pop ax
pop bx
pop cx
pop dx
pop di
pop si
pop bp
ret
.Xtrp:
cmp ax,#16
jge 1f
call .error
ret
1:
jmp .trp