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https://github.com/QB64-Phoenix-Edition/QB64pe.git
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6e01fc8dce
Added new _STRCMP and _STRICMP commands for quick string comparisons. Cleaned up QB64 to finish removing the QUI (quick user insert) code and folders. Altered UCASE and LCASE routines to be faster in some situations for us.
44 lines
2 KiB
Plaintext
44 lines
2 KiB
Plaintext
The '''MKI$''' function converts a numerical [[INTEGER]] value to a 2 byte [[ASCII]] string value.
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{{PageSyntax}}
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:: two_byte_string$ = MKI$(Integer_value%)
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* The Integer number value is converted to two ASCII characters.
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* [[INTEGER]] values can range from -32768 to 32767.
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* MKI$ string values can be converted back to numerical INTEGER values using [[CVI]].
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* The function takes up less byte space in a file than using the text numerical value when the value is over 2 digits.
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* When a variable value is used with [[PUT]] a numerical value is converted automatically in [[RANDOM]] and [[BINARY]] files.
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''Example:'' How MKI$ creates a two byte string integer value to save file space.
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{{CodeStart}} '' ''
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{{Cl|SCREEN (statement)|SCREEN}} 12 '_PRINTSTRING requires a graphic screen mode
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DO
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{{Cl|COLOR}} 14: {{Cl|LOCATE}} 13, 20: {{Cl|INPUT}} "Enter an Integer from 1 to 32767(0 quits): ", number%
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{{Cl|IF...THEN|IF}} number% < 1 {{Cl|THEN}} {{Cl|EXIT DO}}
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{{Cl|CLS}}
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A$ = {{Cl|CHR$}}(number% {{Cl|MOD}} 256) 'first digit(0 to 255)
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B$ = {{Cl|CHR$}}(number% \ 256) 'second digit(0 to 127)
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MKIvalue$ = A$ + B$
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Q$ = {{Cl|CHR$}}(34)
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strng$ = "{{Cl|CHR$}}(" + {{Cl|LTRIM$}}({{Cl|STR$}}(number% {{Cl|MOD}} 256)) + ") + {{Cl|CHR$}}(" + {{Cl|LTRIM$}}({{Cl|STR$}}(number% \ 256)) + ")"
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{{Cl|COLOR}} 11
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{{Cl|_PRINTSTRING}} (222, 252), {{Cl|STR$}}(number%) + " = " + strng$
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{{Cl|_PRINTSTRING}} (252, 300), "{{Cl|MKI$}} value = " + Q$ + MKIvalue$ + Q$ 'print ASCII characters
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{{Cl|LOOP}}
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{{Cl|END}} '' ''
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{{CodeEnd}}
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{{small|Code by Ted Weissgerber}}
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:''Explanation:'' INPUT in QB64 limits integer entries to 32767 maximum. MOD 256 finds the part of a value from 0 to 255 while the second value is the number of times that 256 can go into the value. [[_PRINTSTRING]] can print all of the [[ASCII]] characters.
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''See also:''
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* [[MKL$]], [[MKS$]], [[MKD$]]
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* [[CVI]], [[CVL]], [[CVS]], [[CVD]]
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* [[_CV]], [[_MK$]], [[STRING]]
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{{PageNavigation}} |