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fox32os/applications/sh/commands/clear.asm

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NASM
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shell: Add `clear` command
2022-11-26 02:21:28 +01:00
; clear command
const FILL_TERM: 0xF0
const MOVE_CURSOR: 0xF1
Make use of data.strz The filesystem image is the same before and after this commit: $ sha256sum fox32os-orig.img fox32os.img abc77bd6310b8eb6bcde0a8a442ca8bab071307a6cf5155ea606578435f77d27 fox32os-orig.img abc77bd6310b8eb6bcde0a8a442ca8bab071307a6cf5155ea606578435f77d27 fox32os.img The conversion was performed with a few sed commands: find -name '*.asm' | xargs sed -i -e 's/data.str \("[^"]*"\) data.8 0$/data.strz \1/g' find -name '*.asm' | xargs sed -i -e 's/data.str \("[^"]*"\) data.8 0 /data.strz \1 /g' find -name '*.asm' | xargs sed -i -e 's/data.str \("[^"]*"\) data.8 0x00 /data.strz \1 /g'
2023-02-02 00:08:22 +01:00
shell_clear_command_string: data.strz "clear"
shell: Add `clear` command
2022-11-26 02:21:28 +01:00
shell_clear_command:
movz.8 r0, FILL_TERM
call print_character_to_terminal
movz.8 r0, 0
call print_character_to_terminal
call print_character_to_terminal
movz.8 r0, MOVE_CURSOR
call print_character_to_terminal
movz.8 r0, 0
call print_character_to_terminal
movz.8 r0, 0
call print_character_to_terminal
ret
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