First Steps in Assembly Language for the 68000
Introduces assembly language programming, discusses registers, condition flags, indexing, subroutines, input-output, and data structure, and provides simple examples
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Beginning Assembly Language
Registers and Addressing Modes
14 other sections not shown
ADDO address pointed address register indirect Addressing Modes arithmetic ASCII code assembler assembly language automatically binary-coded decimal buffer carry flag chapter character CMPI CMPI.B contained contents copied count daea data register data section DBcc DBRA DC.B DC.W decimal destination operand digit DISP displacement DIVU effective address EORI example extend flag FIGURE hexadecimal high-order immediate value incremented index register item of data keyboard labeled LEA.L loaded long-word LOOP1 low-order word main program mileage total Mnemonic Operation MOVE MOVE.W MOVEM MOVEO MOVEO 00 MOVEQ N Z V C X object code offset opcode operating system Operation Size Flags PC register PC relative printed PRNT Program Counter program loop reset result retrieve return address Rotate routine screen sign extended source operand specified stack pointer status register stored SUBMIL subroutine Subtract supervisor mode SWAP TOTALS array zero flag