From 6e5d35cd0a349b880dd39d13de0f5640f2e05ea2 Mon Sep 17 00:00:00 2001 From: Bond_009 Date: Sun, 6 Dec 2020 14:25:20 +0100 Subject: Add ASM version seat_id --- 5/seat_id.asm | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 5/seat_id.asm diff --git a/5/seat_id.asm b/5/seat_id.asm new file mode 100644 index 0000000..562dec4 --- /dev/null +++ b/5/seat_id.asm @@ -0,0 +1,48 @@ +global seat_id + +section .data + +section .text + +seat_id: + xor eax, eax ; set up return value + cmp BYTE [rdi], 66 ; B + sete al + shl eax, 1 + xor ecx, ecx + cmp BYTE [rdi + 1], 66 + sete cl + or eax, ecx + shl eax, 1 + cmp BYTE [rdi + 2], 66 + sete cl + or eax, ecx + shl eax, 1 + cmp BYTE [rdi + 3], 66 + sete cl + or eax, ecx + shl eax, 1 + cmp BYTE [rdi + 4], 66 + sete cl + or eax, ecx + shl eax, 1 + cmp BYTE [rdi + 5], 66 + sete cl + or eax, ecx + shl eax, 1 + cmp BYTE [rdi + 6], 66 + sete cl + or eax, ecx + shl eax, 1 + cmp BYTE [rdi + 7], 82 ; R + sete cl + or eax, ecx + shl eax, 1 + cmp BYTE [rdi + 8], 82 + sete cl + or eax, ecx + shl eax, 1 + cmp BYTE [rdi + 9], 82 + sete cl + or eax, ecx + ret -- cgit v1.2.3