Literals/String: Difference between revisions
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{{trans|6502 Assembly}} |
{{trans|6502 Assembly}} |
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Strings are enclosed in double quotes. [[C]] places a null terminator at the end of the string for you; in 68000 Assembly you have to type it manually (unless your assembler has an <code>.ASCIZ</code> directive or equivalent, and not all do). |
Strings are enclosed in double quotes. [[C]] places a null terminator at the end of the string for you; in 68000 Assembly you have to type it manually (unless your assembler has an <code>.ASCIZ</code> directive or equivalent, and not all do). |
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<lang 68000devpac>DC.B "Hello World" |
<lang 68000devpac>DC.B "Hello World",0 |
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EVEN</lang> |
EVEN</lang> |
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Any typed character in double quotes is assembled as the ASCII equivalent of that character. Therefore the following two data blocks are equivalent: |
Any typed character in double quotes is assembled as the ASCII equivalent of that character. Therefore the following two data blocks are equivalent: |
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<lang 68000devpac>DC.B "Hello World" |
<lang 68000devpac>DC.B "Hello World",0 |
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EVEN |
EVEN |
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DC.B $48,$65,$6c,$6c,$6f,$20,$57,$6f,$72,$6c,$64 |
DC.B $48,$65,$6c,$6c,$6f,$20,$57,$6f,$72,$6c,$64,$00 |
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EVEN</lang> |
EVEN</lang> |
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The assembler typically assumes nothing with regard to special characters |
The assembler typically assumes nothing with regard to special characters. How special characters are handled depends on the printing routine of the hardware's BIOS, or in the case of embedded hardware with no BIOS or a very limited one like the Sega Genesis, the printing routine created by the programmer. By default, there is no support for any control codes unless you add it in yourself. |
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<lang 68000devpac>DC.B "Hello World",13,10,0 |
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EVEN</lang> |
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=={{header|Ada}}== |
=={{header|Ada}}== |
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