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// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
#include "../assembly.h"
// di_int __muldi3(di_int a, di_int b);
#ifdef __i386__
.text
.balign 4
DEFINE_COMPILERRT_FUNCTION(__muldi3)
pushl %ebx
movl 16(%esp), %eax // b.lo
movl 12(%esp), %ecx // a.hi
imull %eax, %ecx // b.lo * a.hi
movl 8(%esp), %edx // a.lo
movl 20(%esp), %ebx // b.hi
imull %edx, %ebx // a.lo * b.hi
mull %edx // EDX:EAX = a.lo * b.lo
addl %ecx, %ebx // EBX = (a.lo*b.hi + a.hi*b.lo)
addl %ebx, %edx
popl %ebx
retl
END_COMPILERRT_FUNCTION(__muldi3)
#endif // __i386__
NO_EXEC_STACK_DIRECTIVE
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