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characters

summary

    This subchapter looks at characters.

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stub section

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characters

    This subchapter looks at characters.

functions

BASIC    CHR$(x) — BASIC library function that returns the single element character string containing the ASCII character equivalent of an integer expression in the range of 0 to 255.
Pascal    char(x) — Pascal standard function that returns the CHAR character that matches the position in the collating sequence of an argument x.

BASIC    ASC(x) — BASIC library function that returns the decimal ASCII value of a string variable. x is either a character literal (such as "A", which is decimal 65) or a string variable (such as ). In the case of a character string variable, the function returns the decimal equivalent of the first character of the string variable. Some forms of BASIC may have a limit on the largest string variable size that ASC can accept. Some forms of BASIC (such as DEC-10) use ASCII instead of ASC. Some forms of BASIC (such as MAXBASIC) allow a version PRINT ASC(A$,X) where the decimal equivalent of the first X characters of string variable A$ are printed..

assembly language instructions

• CHAR Convert to Characters; MIX; converts numeric data in the A-register (accumulator) into byte encoded character code (MIX character code) in A-register/X-register pair, does not change signs
• MVC MoVe Character; IBM 360/370; SS format; moves one to 256 characters (8 bits each) of data; main storage to main storage only; does not affect condition code
• PACK Pack; Motorola 680x0; converts byte encoded numeric data (such as ASCII or EBCDIC characters) into binary coded decimals using an adjustment field ($3030 for ASCII, $F0F0 for EBCDIC), either from data register to data register or memory location to memory location with predecrement of address pointers; does not modify flags
• UNPK Unpack; Motorola 680x0; converts binary coded decimals into byte encoded numeric data (such as ASCII or EBCDIC characters) using an adjustment field ($3030 for ASCII, $F0F0 for EBCDIC), either from data register to data register or memory location to memory location with predecrement of address pointers; does not modify flags

See also String and Character Instructions in Assembly Language

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