diff options
Diffstat (limited to 'contrib/syslinux-4.02/core/plaincon.inc')
| -rw-r--r-- | contrib/syslinux-4.02/core/plaincon.inc | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/core/plaincon.inc b/contrib/syslinux-4.02/core/plaincon.inc new file mode 100644 index 0000000..c41629d --- /dev/null +++ b/contrib/syslinux-4.02/core/plaincon.inc @@ -0,0 +1,24 @@ +; +; writechr: Write a single character in AL to the console without +; mangling any registers; handle video pages correctly. +; + section .text16 + +writechr: + call write_serial ; write to serial port if needed + pushfd + test byte [cs:UsingVGA], 08h + jz .videook + call vgaclearmode +.videook: + test byte [cs:DisplayCon], 01h + jz .nothing + pushad + mov ah,0Eh + mov bl,07h ; attribute + mov bh,[cs:BIOS_page] ; current page + int 10h + popad +.nothing: + popfd + ret |