diff options
Diffstat (limited to 'lib/std/special/compiler_rt/aullrem.zig')
| -rw-r--r-- | lib/std/special/compiler_rt/aullrem.zig | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/lib/std/special/compiler_rt/aullrem.zig b/lib/std/special/compiler_rt/aullrem.zig new file mode 100644 index 0000000000..51c4eebe3e --- /dev/null +++ b/lib/std/special/compiler_rt/aullrem.zig @@ -0,0 +1,56 @@ +pub nakedcc fn _aullrem() void { + @setRuntimeSafety(false); + asm volatile ( + \\.intel_syntax noprefix + \\ + \\ push ebx + \\ mov eax,dword ptr [esp+14h] + \\ or eax,eax + \\ jne L1a + \\ mov ecx,dword ptr [esp+10h] + \\ mov eax,dword ptr [esp+0Ch] + \\ xor edx,edx + \\ div ecx + \\ mov eax,dword ptr [esp+8] + \\ div ecx + \\ mov eax,edx + \\ xor edx,edx + \\ jmp L2a + \\ L1a: + \\ mov ecx,eax + \\ mov ebx,dword ptr [esp+10h] + \\ mov edx,dword ptr [esp+0Ch] + \\ mov eax,dword ptr [esp+8] + \\ L3a: + \\ shr ecx,1 + \\ rcr ebx,1 + \\ shr edx,1 + \\ rcr eax,1 + \\ or ecx,ecx + \\ jne L3a + \\ div ebx + \\ mov ecx,eax + \\ mul dword ptr [esp+14h] + \\ xchg eax,ecx + \\ mul dword ptr [esp+10h] + \\ add edx,ecx + \\ jb L4a + \\ cmp edx,dword ptr [esp+0Ch] + \\ ja L4a + \\ jb L5a + \\ cmp eax,dword ptr [esp+8] + \\ jbe L5a + \\ L4a: + \\ sub eax,dword ptr [esp+10h] + \\ sbb edx,dword ptr [esp+14h] + \\ L5a: + \\ sub eax,dword ptr [esp+8] + \\ sbb edx,dword ptr [esp+0Ch] + \\ neg edx + \\ neg eax + \\ sbb edx,0 + \\ L2a: + \\ pop ebx + \\ ret 10h + ); +} |