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- .sect .text; .sect .rom; .sect .data; .sect .bss
- .sect .text
- .define .rck
- ! descriptor address in bx
- ! value in ax, must be left there
- .rck:
- cmp ax,(bx)
- jl 2f
- cmp ax,2(bx)
- jg 2f
- ret
- 2:
- push ax
- .extern ERANGE
- .extern .error
- mov ax,ERANGE
- call .error
- pop ax
- ret
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