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| author | mjfernez <mjfernez@gmail.com> | 2021-10-12 20:18:28 -0400 |
|---|---|---|
| committer | mjfernez <mjfernez@gmail.com> | 2021-10-12 20:18:28 -0400 |
| commit | 3cf128d6da667d00bb5bb659413ea55a98a02aff (patch) | |
| tree | 12eb90997dfa63d65fe6da714626271272342320 /01-Multiples-of-3-and-5/asm/euler1.asm | |
| parent | 009ce017d99a8deb2089438381c273e8f3ea3b67 (diff) | |
| download | Project_Euler_Solutions-master.tar.gz | |
Diffstat (limited to '01-Multiples-of-3-and-5/asm/euler1.asm')
| -rw-r--r-- | 01-Multiples-of-3-and-5/asm/euler1.asm | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/01-Multiples-of-3-and-5/asm/euler1.asm b/01-Multiples-of-3-and-5/asm/euler1.asm new file mode 100644 index 0000000..9541295 --- /dev/null +++ b/01-Multiples-of-3-and-5/asm/euler1.asm @@ -0,0 +1,42 @@ +extern printf +SECTION .data +flag: db "%d",10,0 ; "%d\n\0" + +SECTION .text + global main + +main: + push rbp ; set up stack + mov rbp, rsp + xor rax, rax ; start at multiple (i = 0) + mov r11, 0 ; sum = 0 + mov r12, 1000 ; max = 1000 +.loop xor rdx, rdx ; clear rdx (remainder) + push rax ; save rax + mov rcx, 5 ; divisible by 5 + div rcx ; divide rdx:rax/rcx + cmp rdx, 0 ; compare only remainder + jz .sum ; if r = 0 , add to sum + xor rdx,rdx ; clear rdx + mov rax, QWORD [rsp] ; reload rax + mov rcx, 3 ; divisible by 3 + div rcx ; divide rdx:rax/rcx + cmp rdx, 0 ; compare only remainder + jnz .next ; if r = 0 , add to sum + +.sum add r11, QWORD [rsp] ; add to sum register + +.next pop rax ; return rax value from stack to be inc + inc rax ; i++ + cmp rax, r12 ; while rax < r12 (1000) + jl .loop ; repeat + + mov rdi, flag ; arg 1 (format) + mov rsi, r11 ; arg 2 (value) + mov rax, 0 ; no xmm registers + call printf wrt ..plt + pop rbp + + mov rax, 0 + ret + |