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21 lines
355 B
Plaintext
21 lines
355 B
Plaintext
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;ACME 0.97
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; macro to store a petscii string with msb set in last byte
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!macro msbstring @s {
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!ct pet {
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@l = len(@s)
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!if @l < 1 {
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!error "String is empty!"
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}
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!for @i, 0, @l - 1 {
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!if $80 & @s[@i] {
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!error "String already contains character(s) with MSB set!"
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}
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}
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!for @i, 0, @l - 2 {
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!byte @s[@i]
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}
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!byte $80 | @s[-1]
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}
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}
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