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view run/mini/naked_asm5.d @ 1630:d0efa3ae5522 default tip
run/mini/naked_asm5: New x86_64 ABI passes the arguments in reverse order.
author | David Nadlinger <code@klickverbot.at> |
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date | Sat, 23 Apr 2011 22:57:32 +0200 |
parents | c6ef09dfba4d |
children |
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int foo(int op)(int a, int b) { version(X86) { const OP = (op == '+') ? "add" : "sub"; version (Windows) { asm { naked; } mixin("asm{push EBP;mov EBP,ESP;sub ESP,8;mov ECX,[EBP+8];"~OP~" EAX, ECX;add ESP,8;pop EBP;}"); asm { ret; } } else { asm { naked; } mixin("asm{"~OP~" EAX, [ESP+4];}"); asm { ret 4; } } } else version(X86_64) { const OP = (op == '+') ? "add" : "sub"; asm { naked; } mixin("asm{"~OP~" EDI,ESI; mov EAX, EDI;}"); asm { ret; } } else static assert(0, "todo"); } void main() { int i = foo!('+')(2, 4); assert(i == 6); i = foo!('-')(2, 4); assert(i == 2); }