ffdda5eaca
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'
34 lines
679 B
NASM
34 lines
679 B
NASM
; disk command
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shell_disk_command_string: data.strz "disk"
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shell_disk_command:
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call shell_parse_arguments
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mov r1, 10
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call string_to_int
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; r0: disk ID
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; check if it's in range
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cmp r0, 3
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ifgt jmp shell_disk_command_out_of_range
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; OR it with the IO port to get the current insert state of a disk
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or r0, 0x80001000
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in r1, r0
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cmp r1, 0
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ifz ret
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; set the current disk ID
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mov.8 [shell_current_disk], r0
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ret
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shell_disk_command_out_of_range:
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mov r0, shell_disk_command_out_of_range_string
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call print_str_to_terminal
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ret
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shell_disk_command_out_of_range_string: data.str "invalid disk ID" data.8 10 data.8 0
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