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Mostek z80 - Page 34

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2-12
PC
M'
I
IF
BC
DE
HL
DISASSEMBLY
IX IY SP
0002
0001
0041 FFFF FFFF
0200
INC
A
BFFF FFFF
01F0
,B
H,O(CR)
< update
history
options
PA7-PA0
A15 .
A0
TRIGGER
WORD
IS:
XXXX
XXXX
0000 0000
0000
0000
1CR)
UPDATE:
TRIGGER
STROBE
IS
(MRD,LE)
;TO
CHANGE
SELECT
ONE:
MRD(0)
r4'lR(1)
MREQ(2)
lORD
(3)
ICl'lR(4) IORQ(5) INTA(6)
PAS
(7)
[,LE(8)
,TE(9)]
->
1CR)
EVENT
COUNI'
IS:
0001
->
~CR)
DELAY
COUNI'
IS:
000
->
!fCR)
HISTORY
CLOCK
IS
(MRD
MWR
lORD
ICl'lR)
;TO
CHANGE
SELECT
ANY:
MRD(0)
r4'lR(1) MRF(2)
lORD
(3) ICl'lR(4) PAS+(5)
PAST?
(6)
->
1CR)
HISTORY
CLOCK
ENABLE
IS
(ALL)
CYCLES
;TO
CHANGE
SELECT
ONE:
ALL
(0)
DMA(l)
CPU(2) PA7L(3) PA7H(4)
'lWORD(6)
[
,PB8L(8)
,PB8H(9)]
->
1CR)
,E
0(CR) < execute
again
,
iW3P
ENCOUNTERED
62
uSec
PC
M'
I
IF
BC
DE
HL
DISASSEMBLY
IX IY SP
0005
FD3B
0041
FFFF FFFF 0200
INC
A
BFFF FFFF
01F0
,T
F
,-A
(CR)
<
display
history
memory
OFFS
ADDR
DB
DISASSEMBLY
-00A
0000
3E
LD
A,0
-009
0001
00
TYPE
PAS-PA0
PB8-PB0
FEte
1
1111 1111
1
1111
1111
MRD
1
1111
1111
1
1111
1111

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