diff options
Diffstat (limited to 'lib/i386/lshrdi3.S')
| -rw-r--r-- | lib/i386/lshrdi3.S | 18 |
1 files changed, 5 insertions, 13 deletions
diff --git a/lib/i386/lshrdi3.S b/lib/i386/lshrdi3.S index 5992c2131..a70113f8c 100644 --- a/lib/i386/lshrdi3.S +++ b/lib/i386/lshrdi3.S @@ -42,21 +42,13 @@ ___lshrdi3: movl 4(%esp), %eax // Load low testl $0x20, %ecx // If count >= 32 - jnz 2f // goto 2 - testl $0x1f, %ecx // If count == 0 - jz 1f // goto 1 - - pushl %ebx - movl %edx, %ebx // copy high - shrl %cl, %eax // right shift low by count + jnz 1f // goto 1 + + shrdl %cl, %edx, %eax // right shift low by count shrl %cl, %edx // right shift high by count - neg %cl - shll %cl, %ebx // left shift high by 32 - count - orl %ebx, %eax // or the result into the low word - popl %ebx -1: ret + ret -2: movl %edx, %eax // Move high to low +1: movl %edx, %eax // Move high to low xorl %edx, %edx // clear high shrl %cl, %eax // shift low by count - 32 ret |