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8 Cards in this Set
- Front
- Back
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Special Testing Register |
conditional code register |
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testing types |
-compare two values -sign test -validity test (check for overflow) -external requests (interrupts) |
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special branching register |
Program counter -loaded with the address of the instruction. usually increments but can be given a whole new address |
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data directives |
.byte 1 byte .word 2 bytes .long 4 bytes .quad 8 bytes .space X x bytes .string <characters> as much space as needed to save string |
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registers saved by callee |
rbx,rbp,r12-15 |
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stack frame procedure |
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buses between data path and controller |
opc bus -provides the opcode it got from the memory flags bus - provides the results of the conditional code registers so that it can decide about branching ctl-wd bus - provides the control word to the data path so it can turn on and off the correct functions |
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combination and sequential system descriptions |
combination system: input set output set output function Sequential system input set output set state set output function state transition function |
