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28 Cards in this Set
- Front
- Back
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the assembler converts a source file into an....file
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object
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the four fields found in an assembly language statement are:label,mnemonic,comment and....field
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operand
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the first instruction (pseudo-opcode) of a program when using as assembler should be
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org
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the DS( define storage) directive reserves..... storage area for use during execution of a program
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RAM
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the assembler directive, COUNT EQU 170, indicates that the symbol COUNT is assighed the value of
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$AA
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the last instruction(pseudo-opcode) of a program when using as assembler should be
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END
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the square root program written in the lab uses a subroutine, the last instruction of the subroutine must be
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RTS
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an unconditional branch instruction is
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BRA
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The BSR instruction branchesto a subroutine, but before going to the subroutine, the contents of the PC is saved
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on the stack
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the MOVEA.W#$9ABC,A2 instruction will put.....into address register, A2
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$FFFF9ABC
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the MOVE.L #$120A4529,$1400 instruction will put the immediate data into...memory locations
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4
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a memory location contains....bits of information
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8
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the highest priority on the interrupt request lines is a level..... code
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7
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a nonmaskable interrupt request is the following code on the IPLO-IPL2 pins
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000
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the 68000bus abritration controls signals are BG,BGACK and
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BR
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the signal that the 68000 provides to the DMA controller is
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BG
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a tristate driver has three distinct states; the high or 1 atate, the low or 0 state and the........state
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high impedance
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the asynchronous bus control signals are, AS,R/W, UDS,LDS and
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DTACK
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what flag must be cleared before doing a ABCD operation
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X
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in order to use the 68000 CPU, +5 volts must be connected to the.....pin
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v
cc |
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when a signal has a bar over it, it becomes active when it goes
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low
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when down loading a program from the computer to the 68000 kit, the.....file is downloaded
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HEX
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which instruction does not perform any operation
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NOP
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6800 peripheral control signals are, E,....and VMA
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VPA
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an area of memory set aside for reading and writing special data items is called the
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stack
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the user stack pointer is a/an.....bit register
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32
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stacks are commonly reffered to as a.........structure
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LIFO
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the RTS(return from subroutine) instruction pulls the.....value from the stack
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program counter
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