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fixed #1491

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This commit is contained in:
Charlie Barto 2014-08-19 18:30:12 -04:00
commit 5b326269c3
1 changed files with 17 additions and 11 deletions
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28
lib/system/arithm.nim
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@ -114,63 +114,69 @@ when asmVersion and not defined(gcc) and not defined(llvm_gcc):
proc addInt(a, b: int): int {.compilerProc, asmNoStackFrame.} = proc addInt(a, b: int): int {.compilerProc, asmNoStackFrame.} =
# a in eax, and b in edx # a in eax, and b in edx
asm """ asm """
mov eax, `a` mov eax, ecx
add eax, `b` add eax, edx
jno theEnd jno theEnd
call `raiseOverflow` call `raiseOverflow`
theEnd: theEnd:
ret
""" """
proc subInt(a, b: int): int {.compilerProc, asmNoStackFrame.} = proc subInt(a, b: int): int {.compilerProc, asmNoStackFrame.} =
asm """ asm """
mov eax, `a` mov eax, ecx
sub eax, `b` sub eax, edx
jno theEnd jno theEnd
call `raiseOverflow` call `raiseOverflow`
theEnd: theEnd:
ret
""" """
proc negInt(a: int): int {.compilerProc, asmNoStackFrame.} = proc negInt(a: int): int {.compilerProc, asmNoStackFrame.} =
asm """ asm """
mov eax, `a` mov eax, ecx
neg eax neg eax
jno theEnd jno theEnd
call `raiseOverflow` call `raiseOverflow`
theEnd: theEnd:
ret
""" """
proc divInt(a, b: int): int {.compilerProc, asmNoStackFrame.} = proc divInt(a, b: int): int {.compilerProc, asmNoStackFrame.} =
asm """ asm """
mov eax, `a` mov eax, ecx
mov ecx, `b` mov ecx, edx
xor edx, edx xor edx, edx
idiv ecx idiv ecx
jno theEnd jno theEnd
call `raiseOverflow` call `raiseOverflow`
theEnd: theEnd:
ret
""" """
proc modInt(a, b: int): int {.compilerProc, asmNoStackFrame.} = proc modInt(a, b: int): int {.compilerProc, asmNoStackFrame.} =
asm """ asm """
mov eax, `a` mov eax, ecx
mov ecx, `b` mov ecx, edx
xor edx, edx xor edx, edx
idiv ecx idiv ecx
jno theEnd jno theEnd
call `raiseOverflow` call `raiseOverflow`
theEnd: theEnd:
mov eax, edx mov eax, edx
ret
""" """
proc mulInt(a, b: int): int {.compilerProc, asmNoStackFrame.} = proc mulInt(a, b: int): int {.compilerProc, asmNoStackFrame.} =
asm """ asm """
mov eax, `a` mov eax, ecx
mov ecx, `b` mov ecx, edx
xor edx, edx xor edx, edx
imul ecx imul ecx
jno theEnd jno theEnd
call `raiseOverflow` call `raiseOverflow`
theEnd: theEnd:
ret
""" """
elif false: # asmVersion and (defined(gcc) or defined(llvm_gcc)): elif false: # asmVersion and (defined(gcc) or defined(llvm_gcc)):