stdlib/submul_1.shared.s

   1  .text
   2 .globl __mpn_submul_1
   3 .type __mpn_submul_1,@function
   4 .align 1<<4
   5 __mpn_submul_1:
   6  push %rbx
   7  push %rbp
   8  lea (%rdx), %rbx
   9  neg %rbx
  10  mov (%rsi), %rax
  11  mov (%rdi), %r10
  12  lea -16(%rdi,%rdx,8), %rdi
  13  lea (%rsi,%rdx,8), %rsi
  14  mul %rcx
  15  bt $0, %ebx
  16  jc .Lodd
  17  lea (%rax), %r11
  18  mov 8(%rsi,%rbx,8), %rax
  19  lea (%rdx), %rbp
  20  mul %rcx
  21  add $2, %rbx
  22  jns .Ln2
  23  lea (%rax), %r8
  24  mov (%rsi,%rbx,8), %rax
  25  lea (%rdx), %r9
  26  jmp .Lmid
  27 .Lodd: add $1, %rbx
  28  jns .Ln1
  29  lea (%rax), %r8
  30  mov (%rsi,%rbx,8), %rax
  31  lea (%rdx), %r9
  32  mul %rcx
  33  lea (%rax), %r11
  34  mov 8(%rsi,%rbx,8), %rax
  35  lea (%rdx), %rbp
  36  jmp .Le
  37  .p2align 4
  38 .Ltop: mul %rcx
  39  sub %r8, %r10
  40  lea (%rax), %r8
  41  mov (%rsi,%rbx,8), %rax
  42  adc %r9, %r11
  43  mov %r10, -8(%rdi,%rbx,8)
  44  mov (%rdi,%rbx,8), %r10
  45  lea (%rdx), %r9
  46  adc $0, %rbp
  47 .Lmid: mul %rcx
  48  sub %r11, %r10
  49  lea (%rax), %r11
  50  mov 8(%rsi,%rbx,8), %rax
  51  adc %rbp, %r8
  52  mov %r10, (%rdi,%rbx,8)
  53  mov 8(%rdi,%rbx,8), %r10
  54  lea (%rdx), %rbp
  55  adc $0, %r9
  56 .Le: add $2, %rbx
  57  js .Ltop
  58  mul %rcx
  59  sub %r8, %r10
  60  adc %r9, %r11
  61  mov %r10, -8(%rdi)
  62  adc $0, %rbp
  63 .Ln2: mov (%rdi), %r10
  64  sub %r11, %r10
  65  adc %rbp, %rax
  66  mov %r10, (%rdi)
  67  adc $0, %rdx
  68 .Ln1: mov 8(%rdi), %r10
  69  sub %rax, %r10
  70  mov %r10, 8(%rdi)
  71  mov %ebx, %eax
  72  adc %rdx, %rax
  73  pop %rbp
  74  pop %rbx
  75  ret
  76 .size __mpn_submul_1,.-__mpn_submul_1