128 lines
1.3 KiB
ArmAsm
128 lines
1.3 KiB
ArmAsm
.sect .text; .sect .rom; .sect .data; .sect .bss
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.define _signal
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.sect .text
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_signal:
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push bp
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mov bp,sp
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push si
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push di
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mov cx,6(bp)
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mov bx,4(bp)
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cmp bx,20
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jae 1f
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mov ax,bx
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add bx,bx
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push table(bx)
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mov table(bx),cx
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and cx,cx
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je 2f
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cmp cx,1
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je 2f
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add bx,bx
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lea cx,tbl(bx)
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2:
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mov bx,ax
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mov ax,48
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call syscal
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pop bx
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jb 4f
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and ax,ax
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je 5f
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cmp ax,1
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jne 6f
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5:
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jmp 7f
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6:
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xchg ax,bx
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jmp 7f
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1:
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mov ax,22
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4:
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mov (_errno),ax
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mov ax,-1
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7:
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pop di
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pop si
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pop bp
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ret
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ctch:
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push bp
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mov bp,sp
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push ax
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push bx
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push cx
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push dx
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push si
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push di
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mov ax,2(bp)
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sub ax,3
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sub ax,tbl
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shr ax,1
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mov bx,ax
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shr ax,1
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push ax
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call table(bx)
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pop di
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pop di
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pop si
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pop dx
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pop cx
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pop bx
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pop ax
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pop bp
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add sp,2
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pop (retadr)
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pop (dummy)
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popf
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jmp (retadr)
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.sect .bss
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retadr: .space 2
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dummy: .space 2
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.sect .text
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.align 2
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tbl:
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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call ctch
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.align 2
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.sect .bss
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table:
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.space 40
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