| .text |
| |
| .p2align 2,0x90 |
| .globl mpdigdiv |
| .type mpdigdiv, @function |
| mpdigdiv: |
| /* Prelude */ |
| pushl %ebp |
| movl %ebx, -4(%esp) /* save on stack */ |
| |
| movl 8(%esp), %ebx |
| movl (%ebx), %eax |
| movl 4(%ebx), %edx |
| |
| movl 12(%esp), %ebx |
| movl 16(%esp), %ebp |
| xorl %ecx, %ecx |
| cmpl %ebx, %edx /* dividend >= 2^32 * divisor */ |
| jae divovfl |
| cmpl %ecx, %ebx /* divisor == 1 */ |
| je divovfl |
| divl %ebx /* AX = DX:AX/BX */ |
| movl %eax, (%ebp) |
| jmp done |
| |
| /* return all 1's */ |
| divovfl: |
| notl %ecx |
| movl %ecx, (%ebp) |
| |
| done: |
| /* Postlude */ |
| movl -4(%esp), %ebx /* restore from stack */ |
| movl %esp, %ebp |
| leave |
| ret |
| |
| .endmpdigdiv: |
| .size mpdigdiv,.endmpdigdiv-mpdigdiv |
