diff options
Diffstat (limited to 'zap/source/amd64/mem/strfill.S')
| -rw-r--r-- | zap/source/amd64/mem/strfill.S | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/zap/source/amd64/mem/strfill.S b/zap/source/amd64/mem/strfill.S deleted file mode 100644 index f570a35..0000000 --- a/zap/source/amd64/mem/strfill.S +++ /dev/null @@ -1,37 +0,0 @@ -# Copyright 2022 Gabriel Jensen. -# This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. -# If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/. - -.globl zap_strfill - -zap_strfill: -# Address of the current character: -#define addr %rax -# Address of the first character of the string: -#define start %rdi -# Fill character: -#define chr %sil - - movq start,addr - - # Iterate over string: -.loop: - - # Check if we have reached the null-terminator: - cmpb $0x0,(addr) # if (*addr == 0x0) - je .done # goto done - - # Set the value of the current element: - movb chr,(addr) # *addr = chr - - # Continue to next character: - incq addr # ++addr - jmp .loop # goto loop - - # Finish: -.done: - - # Get the length of the string: - subq start,addr # addr -= start - - ret # return addr |