33 lines
489 B
ArmAsm
33 lines
489 B
ArmAsm
.sect .text; .sect .rom; .sect .data; .sect .bss
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.define .csb4
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.sect .text
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.csb4:
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!bx: descriptor address
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!ax, dx: index
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push (bx) ! default
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mov cx,2(bx) ! count (ignore high order word, the descriptor
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! would not fit anyway)
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1:
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add bx,#6
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dec cx
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jl 4f
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cmp ax,(bx)
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jne 1b
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cmp dx,2(bx)
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jne 1b
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pop bx
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mov bx,4(bx)
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2:
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test bx,bx
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jnz 3f
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ECASE = 20
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.extern .fat
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mov ax,#ECASE
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push ax
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jmp .fat
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3:
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jmp (bx)
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4:
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pop bx
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jmp 2b
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