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- # qhasm: int64 rp
- # qhasm: int64 xp
- # qhasm: int64 yp
- # qhasm: input rp
- # qhasm: input xp
- # qhasm: input yp
- # qhasm: int64 r0
- # qhasm: int64 r1
- # qhasm: int64 r2
- # qhasm: int64 r3
- # qhasm: int64 subt0
- # qhasm: int64 subt1
- # qhasm: int64 caller1
- # qhasm: int64 caller2
- # qhasm: int64 caller3
- # qhasm: int64 caller4
- # qhasm: int64 caller5
- # qhasm: int64 caller6
- # qhasm: int64 caller7
- # qhasm: caller caller1
- # qhasm: caller caller2
- # qhasm: caller caller3
- # qhasm: caller caller4
- # qhasm: caller caller5
- # qhasm: caller caller6
- # qhasm: caller caller7
- # qhasm: stack64 caller1_stack
- # qhasm: stack64 caller2_stack
- # qhasm: stack64 caller3_stack
- # qhasm: stack64 caller4_stack
- # qhasm: stack64 caller5_stack
- # qhasm: stack64 caller6_stack
- # qhasm: stack64 caller7_stack
- # qhasm: enter CRYPTO_NAMESPACE(fe25519_sub)
- .text
- .p2align 5
- .globl _CRYPTO_NAMESPACE(fe25519_sub)
- .globl CRYPTO_NAMESPACE(fe25519_sub)
- _CRYPTO_NAMESPACE(fe25519_sub):
- CRYPTO_NAMESPACE(fe25519_sub):
- mov %rsp,%r11
- and $31,%r11
- add $0,%r11
- sub %r11,%rsp
- # qhasm: r0 = *(uint64 *)(xp + 0)
- # asm 1: movq 0(<xp=int64#2),>r0=int64#4
- # asm 2: movq 0(<xp=%rsi),>r0=%rcx
- movq 0(%rsi),%rcx
- # qhasm: r1 = *(uint64 *)(xp + 8)
- # asm 1: movq 8(<xp=int64#2),>r1=int64#5
- # asm 2: movq 8(<xp=%rsi),>r1=%r8
- movq 8(%rsi),%r8
- # qhasm: r2 = *(uint64 *)(xp + 16)
- # asm 1: movq 16(<xp=int64#2),>r2=int64#6
- # asm 2: movq 16(<xp=%rsi),>r2=%r9
- movq 16(%rsi),%r9
- # qhasm: r3 = *(uint64 *)(xp + 24)
- # asm 1: movq 24(<xp=int64#2),>r3=int64#2
- # asm 2: movq 24(<xp=%rsi),>r3=%rsi
- movq 24(%rsi),%rsi
- # qhasm: carry? r0 -= *(uint64 *)(yp + 0)
- # asm 1: subq 0(<yp=int64#3),<r0=int64#4
- # asm 2: subq 0(<yp=%rdx),<r0=%rcx
- subq 0(%rdx),%rcx
- # qhasm: carry? r1 -= *(uint64 *)(yp + 8) - carry
- # asm 1: sbbq 8(<yp=int64#3),<r1=int64#5
- # asm 2: sbbq 8(<yp=%rdx),<r1=%r8
- sbbq 8(%rdx),%r8
- # qhasm: carry? r2 -= *(uint64 *)(yp + 16) - carry
- # asm 1: sbbq 16(<yp=int64#3),<r2=int64#6
- # asm 2: sbbq 16(<yp=%rdx),<r2=%r9
- sbbq 16(%rdx),%r9
- # qhasm: carry? r3 -= *(uint64 *)(yp + 24) - carry
- # asm 1: sbbq 24(<yp=int64#3),<r3=int64#2
- # asm 2: sbbq 24(<yp=%rdx),<r3=%rsi
- sbbq 24(%rdx),%rsi
- # qhasm: subt0 = 0
- # asm 1: mov $0,>subt0=int64#3
- # asm 2: mov $0,>subt0=%rdx
- mov $0,%rdx
- # qhasm: subt1 = 38
- # asm 1: mov $38,>subt1=int64#7
- # asm 2: mov $38,>subt1=%rax
- mov $38,%rax
- # qhasm: subt1 = subt0 if !carry
- # asm 1: cmovae <subt0=int64#3,<subt1=int64#7
- # asm 2: cmovae <subt0=%rdx,<subt1=%rax
- cmovae %rdx,%rax
- # qhasm: carry? r0 -= subt1
- # asm 1: sub <subt1=int64#7,<r0=int64#4
- # asm 2: sub <subt1=%rax,<r0=%rcx
- sub %rax,%rcx
- # qhasm: carry? r1 -= subt0 - carry
- # asm 1: sbb <subt0=int64#3,<r1=int64#5
- # asm 2: sbb <subt0=%rdx,<r1=%r8
- sbb %rdx,%r8
- # qhasm: carry? r2 -= subt0 - carry
- # asm 1: sbb <subt0=int64#3,<r2=int64#6
- # asm 2: sbb <subt0=%rdx,<r2=%r9
- sbb %rdx,%r9
- # qhasm: carry? r3 -= subt0 - carry
- # asm 1: sbb <subt0=int64#3,<r3=int64#2
- # asm 2: sbb <subt0=%rdx,<r3=%rsi
- sbb %rdx,%rsi
- # qhasm: subt0 = subt1 if carry
- # asm 1: cmovc <subt1=int64#7,<subt0=int64#3
- # asm 2: cmovc <subt1=%rax,<subt0=%rdx
- cmovc %rax,%rdx
- # qhasm: r0 -= subt0
- # asm 1: sub <subt0=int64#3,<r0=int64#4
- # asm 2: sub <subt0=%rdx,<r0=%rcx
- sub %rdx,%rcx
- # qhasm: *(uint64 *)(rp + 0) = r0
- # asm 1: movq <r0=int64#4,0(<rp=int64#1)
- # asm 2: movq <r0=%rcx,0(<rp=%rdi)
- movq %rcx,0(%rdi)
- # qhasm: *(uint64 *)(rp + 8) = r1
- # asm 1: movq <r1=int64#5,8(<rp=int64#1)
- # asm 2: movq <r1=%r8,8(<rp=%rdi)
- movq %r8,8(%rdi)
- # qhasm: *(uint64 *)(rp + 16) = r2
- # asm 1: movq <r2=int64#6,16(<rp=int64#1)
- # asm 2: movq <r2=%r9,16(<rp=%rdi)
- movq %r9,16(%rdi)
- # qhasm: *(uint64 *)(rp + 24) = r3
- # asm 1: movq <r3=int64#2,24(<rp=int64#1)
- # asm 2: movq <r3=%rsi,24(<rp=%rdi)
- movq %rsi,24(%rdi)
- # qhasm: leave
- add %r11,%rsp
- mov %rdi,%rax
- mov %rsi,%rdx
- ret
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