diff options
Diffstat (limited to 'zap/src/mem/strfill.S')
-rw-r--r-- | zap/src/mem/strfill.S | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/zap/src/mem/strfill.S b/zap/src/mem/strfill.S deleted file mode 100644 index 277865e..0000000 --- a/zap/src/mem/strfill.S +++ /dev/null @@ -1,48 +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/. -*/ - -#include <zap/priv.h> - -.globl zap_strfill - -zap_strfill: - - /* - char * str - char chr - */ - -#if defined(__amd64__) - - # rdi: Address of the first character of the string. - # rsi: Fill character. - # rax: Address of the current character. - - movq %rdi,%rax - - # Iterate over string: -.loop: - - # Check if we have reached the null-terminator: - cmpb $0x0,(%rax) - je .done # Exit loop if we have. - - # Set the value of the current element: - movb %sil,(%rax) - - # Continue to next character: - incq %rax - jmp .loop - - # Finish: -.done: - - # Get the length of the string: - subq %rdi,%rax - - ret - -#endif |