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| author | Joseph Hunkeler <jhunkeler@gmail.com> | 2017-12-02 16:35:43 -0500 |
|---|---|---|
| committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2017-12-02 16:35:43 -0500 |
| commit | c9d2819d72bece6470bb3a7cf0edf669699a7ab4 (patch) | |
| tree | 6382ef3e19f388a7e6d805ce62893c16d37f2acc /console.asm | |
| parent | 11adba68c348ca81961943940e6b64d7e8f3e2ac (diff) | |
| download | minos-c9d2819d72bece6470bb3a7cf0edf669699a7ab4.tar.gz | |
Fixup possible register clobbering
Diffstat (limited to 'console.asm')
| -rw-r--r-- | console.asm | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/console.asm b/console.asm index 8c880f3..de4fdb7 100644 --- a/console.asm +++ b/console.asm @@ -32,6 +32,7 @@ putc: console_scroll_up: + pusha cmp dh, MAX_ROWS - 1 jne .no_action @@ -50,12 +51,14 @@ console_scroll_up: mov dh, MAX_ROWS ; lower row. int 10h .no_action: + popa ret console_driver: push bp mov bp, sp + pusha call console_cursor_getpos mov dh, [cursor_row] @@ -143,9 +146,9 @@ console_driver: call setcursor add sp, 2 - .return_noupdate: call console_scroll_up + popa mov sp, bp pop bp ret |