3-26
RESET Q
REQ
7A
0
→
Q
SAVE
SAV
78
T
→
M(R(X))
PUSH X, P TO STACK
MARK
79
(X, P)
→
T; (X, P)
→
M(R(2)), THEN P
→
X; R(2) - 1
→
R(2)
RETURN
RET
70
M(R(X))
→
(X, P); R(X) + 1
→
R(X), 1
→
lE
DISABLE
DlS
71
M(R(X))
→
(X, P); R(X) + 1
→
R(X), 0
→
lE
INPUT - OUTPUT BYTE TRANSFER
OUTPUT 1
OUT 1
61
M(R(X))
→
BUS; R(X) + 1
→
R(X); N LINES = 1
OUTPUT 2
OUT 2
62
M(R(X))
→
BUS; R(X) + 1
→
R(X); N LINES = 2
OUTPUT 3
OUT 3
63
M(R(X))
→
BUS; R(X) + 1
→
R(X); N LINES = 3
OUTPUT 4
OUT 4
64
M(R(X))
→
BUS; R(X) + 1
→
R(X); N LINES = 4
OUTPUT 5
OUT 5
65
M(R(X))
→
BUS; R(X) + 1
→
R(X); N LINES = 5
OUTPUT 6
OUT 6
66
M(R(X))
→
BUS; R(X) + 1
→
R(X); N LINES = 6
OUTPUT 7
OUT 7
67
M(R(X))
→
BUS; R(X) + 1
→
R(X); N LINES = 7
INPUT 1
INP 1
69
BUS
→
M(R(X)); BUS
→
D; N LINES = 1
INPUT 2
INP 2
6A
BUS
→
M(R(X)); BUS
→
D; N LINES = 2
INPUT 3
INP 3
6B
BUS
→
M(R(X)); BUS
→
D; N LINES = 3
INPUT 4
INP 4
6C
BUS
→
M(R(X)); BUS
→
D; N LINES = 4
INPUT 5
INP 5
6D
BUS
→
M(R(X)); BUS
→
D; N LINES = 5
INPUT 6
INP 6
6E
BUS
→
M(R(X)); BUS
→
D; N LINES = 6
INPUT 7
INP 7
6F
BUS
→
M(R(X)); BUS
→
D; N LINES = 7
TABLE 1. INSTRUCTION SUMMARY (SEE NOTES) (Continued)
INSTRUCTION
MNEMONIC
OP
CODE
OPERATION
CDP1802A, CDP1802AC, CDP1802BC
