67 lines
677 B
ArmAsm
67 lines
677 B
ArmAsm
.sect .text; .sect .rom; .sect .data; .sect .bss
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.define sysal, sysn, sysnl, sysnx, sysc, syse, cerror, _errno
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.sect .bss
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.comm _errno, 2
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.sect .text
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sysal:
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push bp
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mov bp,sp
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push di
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push si
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mov di,10(bp)
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mov si,8(bp)
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mov cx,6(bp)
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mov bx,4(bp)
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call syscal
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mov dx,bx
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pop si
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pop di
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pop bp
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jb cerror
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ret
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syse:
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mov bx,sp
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add bx,2
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call syscal
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cerror:
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mov (_errno),ax
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mov ax,-1
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cwd
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ret
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sysn:
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mov bx,sp
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add bx,2
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call syscal
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jb cerror
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ret
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sysnl:
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mov bx,sp
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add bx,2
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call syscal
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jb cerror
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mov dx,bx
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ret
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sysnx:
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mov bx,sp
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add bx,2
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call syscal
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jb cerror
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xchg bx,ax
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ret
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sysc:
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mov bx,sp
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add bx,2
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call syscal
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jb cerror
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xor ax,ax
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cbw
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ret
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