diff options
Diffstat (limited to 'src/libmp/386/mpvecadd-Darwin.s')
| -rw-r--r-- | src/libmp/386/mpvecadd-Darwin.s | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/src/libmp/386/mpvecadd-Darwin.s b/src/libmp/386/mpvecadd-Darwin.s deleted file mode 100644 index 2f68dbda..00000000 --- a/src/libmp/386/mpvecadd-Darwin.s +++ /dev/null @@ -1,70 +0,0 @@ -/* mpvecadd(mpdigit *a, int alen, mpdigit *b, int blen, mpdigit *sum) */ -/* sum[0:alen] = a[0:alen-1] + b[0:blen-1] */ -/* prereq: alen >= blen, sum has room for alen+1 digits */ -/* (very old gnu assembler doesn't allow multiline comments) */ - -.text - -.p2align 2,0x90 -.globl _mpvecadd -_mpvecadd: - /* Prelude */ - pushl %ebp /* save on stack */ - pushl %ebx - pushl %esi - pushl %edi - - leal 20(%esp), %ebp /* %ebp = FP for now */ - - movl 4(%ebp), %edx /* alen */ - movl 12(%ebp), %ecx /* blen */ - movl 0(%ebp), %esi /* a */ - movl 8(%ebp), %ebx /* b */ - subl %ecx, %edx - movl 16(%ebp), %edi /* sum */ - xorl %ebp, %ebp /* this also sets carry to 0 */ - - /* skip addition if b is zero */ - testl %ecx,%ecx - je 2f - - /* sum[0:blen-1],carry = a[0:blen-1] + b[0:blen-1] */ -1: - movl (%esi, %ebp, 4), %eax - adcl (%ebx, %ebp, 4), %eax - movl %eax, (%edi, %ebp, 4) - incl %ebp - loop 1b - -2: - /* jump if alen > blen */ - incl %edx - movl %edx, %ecx - loop 5f - - /* sum[alen] = carry */ -3: - jb 4f - movl $0, (%edi, %ebp, 4) - jmp 6f - -4: - movl $1, (%edi, %ebp, 4) - jmp 6f - - /* sum[blen:alen-1],carry = a[blen:alen-1] + 0 */ -5: - movl (%esi, %ebp, 4),%eax - adcl $0, %eax - movl %eax, (%edi, %ebp, 4) - incl %ebp - loop 5b - jmp 3b - -6: - /* Postlude */ - popl %edi - popl %esi - popl %ebx - popl %ebp - ret |