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4.2.1.5 Character Set
The character set recognized by the CPU32Bug assembler is a subset of ASCII and listed below:
The letters A through Z (uppercase and lowercase)
The integers 0 through 9
Arithmetic operators: +, -, *, /, <<, >>, !, &
Parentheses ( )
Characters used as special prefixes:
# (pound sign) specifies the immediate form of addressing.
$ (dollar sign) specifies a hexadecimal number.
& (ampersand) specifies a decimal number.
@ (commercial at sign) specifies an octal number.
% (percent sign) specifies a binary number.
' (apostrophe) specifies an ASCII literal character string.
Five separating characters:
Space
. (period)
/ (slash)
- (dash)
The asterisk (*) character indicates current location.
4.2.2
Addressing Modes
Effective address modes, combined with operation codes, define the particular function
performed by a given instruction. Effective addressing and data organization are described in
detail in the CPU32 Reference Manual.
M68CPU32BUG/D
4-6
ASSEMBLER/DISASSEMBLER
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