From c5fcf7179a83ef65c86c6a4a390029149e518649 Mon Sep 17 00:00:00 2001 From: Franciszek Malinka Date: Tue, 5 Oct 2021 21:49:54 +0200 Subject: Duzy commit ze smieciami --- semestr-4/ask/lista5/puzzle3.s | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 semestr-4/ask/lista5/puzzle3.s (limited to 'semestr-4/ask/lista5/puzzle3.s') diff --git a/semestr-4/ask/lista5/puzzle3.s b/semestr-4/ask/lista5/puzzle3.s new file mode 100644 index 0000000..f625752 --- /dev/null +++ b/semestr-4/ask/lista5/puzzle3.s @@ -0,0 +1,19 @@ + .global puzzle3 + + .text +puzzle3: # rdi: n; rsi: d + movl %edi, %edi # zeruje 32 starsze bity rdi + salq $32, %rsi # rsi <<= 32 + movl $32, %edx # edx := 32 + movl $0x80000000, %ecx # ecx := MIN_INT + xorl %eax, %eax # eax := 0 +.L3: addq %rdi, %rdi # rdi *= 2 + movq %rdi, %r8 # r8 := rdi + subq %rsi, %r8 # r8 -= rsi + js .L2 # if r8 < 0 then jump to L2 + orl %ecx, %eax # eax |= ecx + movq %r8, %rdi # rdi := r8 +.L2: shrl %ecx # ecx >>= 1 + decl %edx # edx-- + jne .L3 # if (edx != 0) then jump to L3 + ret -- cgit v1.2.3