mirror of
https://codeberg.org/cryu/micro-sci-a2-controller
synced 2024-12-11 06:50:34 +00:00
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
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; Convert characters to screen codes
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; Modified to pass through codes below 12
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; Helper macro that converts and outputs one character
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.macro _screencode char
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.if (char < 256)
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.if (char > 11)
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.byte (char | $80)
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.else
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.byte (char)
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.endif
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.else
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.error "screencode: Character constant out of range"
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.endif
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.endmacro
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.macro screencode arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9
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; Bail out if next argument is empty
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.if .blank (arg1)
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.exitmacro
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.endif
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; Check for a string
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.if .match ({arg1}, "")
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; Walk over all string chars
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.repeat .strlen (arg1), i
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_screencode {.strat (arg1, i)}
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.endrepeat
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; Check for a number
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.elseif .match (.left (1, {arg1}), 0)
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; Just output the number
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_screencode arg1
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; Check for a character
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.elseif .match (.left (1, {arg1}), 'a')
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; Just output the character
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_screencode arg1
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; Anything else is an error
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.else
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.error "screencode: invalid argument type"
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.endif
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; Call the macro recursively with the remaining args
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screencode arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9
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.endmacro
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