Exam 2 Flashcards
(16 cards)
1
Q
What is Pep/9?
A
A virtual simulator machine
2
Q
A CPU contains 6 specified memory locations called?
A
Registers
3
Q
A 4 bit status register
A
NZVC
4
Q
A 16 bit accumulator
A
A
5
Q
A 16 bit index register
A
X
6
Q
A 16 bit program counter
A
PC
7
Q
A 16 bit stack pointer
A
SP
8
Q
A 24 bit instruction register
A
IR
9
Q
The main memory of the pep/9 contains _________ eight bit storage
A
65536
10
Q
Address range from 0-65535. In hex they rang from:
A
0000-FFFF
11
Q
Main memory is sometimes called a:
A
Core memory
12
Q
string of bytes
A
.ASCII
13
Q
Like zz in machine code, sentinel
A
.END
14
Q
Generates n bytes
A
.BLOCK
And
.BYTE
15
Q
generates 2 bytes and puts value in it
A
.WORD
16
Q
Constant value- replaces in lines so immediate addressing used
A
.EQUATE
