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shell: Add clear command

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This commit is contained in:
Ry 2022-11-25 17:21:28 -08:00
parent c321e54cfb
commit c6919d4168
3 changed files with 29 additions and 0 deletions
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22
kernel/shell/commands/clear.asm Normal file
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@ -0,0 +1,22 @@
; clear command
const FILL_TERM: 0xF0
const MOVE_CURSOR: 0xF1
shell_clear_command_string: data.str "clear" data.8 0
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

6
kernel/shell/commands/commands.asm
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@ -3,6 +3,11 @@
shell_parse_command: shell_parse_command:
mov r0, shell_text_buf_bottom mov r0, shell_text_buf_bottom
; clear
mov r1, shell_clear_command_string
call compare_string
ifz jmp shell_clear_command
; dir ; dir
mov r1, shell_dir_command_string mov r1, shell_dir_command_string
call compare_string call compare_string
@ -45,6 +50,7 @@ shell_parse_command:
shell_invalid_command_string: data.str "invalid command or FXF binary" data.8 10 data.8 0 shell_invalid_command_string: data.str "invalid command or FXF binary" data.8 10 data.8 0
; all commands ; all commands
#include "shell/commands/clear.asm"
#include "shell/commands/dir.asm" #include "shell/commands/dir.asm"
#include "shell/commands/disk.asm" #include "shell/commands/disk.asm"
#include "shell/commands/diskrm.asm" #include "shell/commands/diskrm.asm"

1
kernel/shell/commands/help.asm
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@ -14,6 +14,7 @@ shell_help_text:
data.str "(in descriptions, $n is argument n)" data.8 10 data.str "(in descriptions, $n is argument n)" data.8 10
data.str "command | description" data.8 10 data.str "command | description" data.8 10
data.str "------- | -----------" data.8 10 data.str "------- | -----------" data.8 10
data.str "clear | clear the terminal contents" data.8 10
data.str "dir | show contents of selected disk" data.8 10 data.str "dir | show contents of selected disk" data.8 10
data.str "disk | select disk $0" data.8 10 data.str "disk | select disk $0" data.8 10
data.str "diskrm | remove disk $0" data.8 10 data.str "diskrm | remove disk $0" data.8 10