141 lines
1.7 KiB
NASM
141 lines
1.7 KiB
NASM
;
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; Small-C Run Time Library for Win NT
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;
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; Nasm version 17/Nov/98 H T Walheim
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; Revised: 20/Nov/98 HTW [Bugs in switch]
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;
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_CCARGC:
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;B+ Ellipses arguments ( ,...)
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;cl - argument count
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xor eax,eax
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movzx eax,cl ; No sign-extension
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ret
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;E:.
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;B+ Compare
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__ult:
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;B+ ???
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cmp eax,ebx
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ja true
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xor eax,eax
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ret
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;E:.
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__ugt:
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;B+ ???
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cmp eax,ebx
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jb true
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xor eax,eax
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ret
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;E:.
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__ule:
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;B+ ???
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cmp eax,ebx
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jae true
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xor eax,eax
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ret
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;E:.
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__uge:
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;B+ ???
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cmp eax,ebx
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jbe true
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xor eax,eax
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ret
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;E:.
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__eq:
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;B+ ???
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cmp eax,ebx
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je true
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xor eax,eax
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ret
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;E:.
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__ne:
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;B+ ???
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cmp eax,ebx
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jne true
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xor eax,eax
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ret
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;E:.
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__lt:
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;B+ ???
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cmp eax,ebx
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jg true
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xor eax,eax
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ret
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;E:.
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__gt:
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;B+ ???
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cmp eax,ebx
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jl true
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xor eax,eax
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ret
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;E:.
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__le:
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;B+ ???
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cmp eax,ebx
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jge true
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xor eax,eax
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ret
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;E:.
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__ge:
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;B+ ???
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cmp eax,ebx
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jle true
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xor eax,eax
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ret
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;E:.
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;E:.
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__lneg:
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;B+ Logical Negate of Primary
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or eax,eax
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jnz false
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true:
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mov eax,1
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ret
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false:
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xor eax,eax
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ret
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;E:.
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__switch:
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;B+ Execute "switch" statement
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;eax - switch value
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;[esp] - pointer to switch table
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; dd addr1,value1
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; ...
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; dd 0
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; [jmp default]
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; continuation
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;
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; Revised: 20/Nov/98 [JECXZ needed]
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pop ebx
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jmp skip
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back:
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add ebx,8 ;next case-pair
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skip:
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mov ecx,[ebx] ;case-label location (adress)
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jecxz default
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cmp eax,[ebx+4] ;test case-value
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jnz back
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jmp ecx ;match -- jump to case
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default:
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add ebx,4
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jmp ebx ;jump to default/continuation
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;E:.
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