Radio Shack Quick Printer II Operation Manual

Computer Graphics Operation Manual
-----------TRS·BO ® ----------
Error exits
Subroutines
EGRPH
;
BOMB
iGo read next disk record
;Print "ERROR nn" message
;Required Command Parameter Not Found
;Go close file
;Return if file not open
;Same row?
;Next row. Set X to zero
;Status = graphics, waits, no incs.
;Go get next graphics byte
A,47
8~H
8lH
82H
83H
~
~
A, (OPNFLG)
A
NZ
DE,DCBEE
4428H
(EFLAG) ,A
B,A
A,39
8
EXIT
CLOSE
A,~FFH
(STATUS) ,A
IY
BC
DE
HL
A, (EFLAG)
~
A,E
D
NZ,EGRPH
A
E,A
(X) ,A
A, (YPOS)
A
(YPOS) ,A
(Y) ,A
NGRPH
B,C
NXTREC
EQU
EQU
EQU
EQU
DEFB
DEFB
LD
LD
LD
LD
RST
JP
LD
OR
RET
LD
JP
CALL
LD
OUT
POP
POP
POP
POP
LD
CP
RET
LD
CP
JR
XOR
LD
OUT
LD
INC
LD
OUT
DJNZ
LD
DJNZ
·
,
ERROR
X
Y
GRAPH
STATUS
EFLAG
YPOS
·
,
EXIT
·
,
CLOSE
~5~
~5l
~52
~53
~54
~55
~56
~57
~58
~59
~6~
~6l
~62
~63
~64
~65
~66
~67
~68
~69
~7~
~7l
~72
~73
~74 ;
~75 ;
~76
~77
~78
~79
~8~
~8l
~82 ;
~83
~84
~85
~86
~87
~88
~89
~9~
~9l
~92
~93
~94
~95
~96
~97
~98
---------Itadlo/haell---------
-77-

Radio Shack Quick Printer II Specifications

General

Brand	Radio Shack
Model	Quick Printer II
Category	Desktop
Language	English