IBM 5150 - Page 205

LaC OBJ
LINE SOURCE
6016
WILL BE ADDED FOR ALL OF THEN. EXCEPT WHERE NOTED
6017
,----------------------------------------------------------------
6016
ASSUME
CS:CODE
FEF3
6019
OR.
OFEF3H
FEF3
6020
VECTOR_TABLE
LABEL
WORD
; VECTOR TABLE FOR HOVE TO INTERRUPTS
FEF3
A5fE
6021
OW
OFFSET TINER_1NT
I INTERRUPT 6
FEF5 87E9
OW
KB_INT
6022
OFFSET
INTERRUPT 9
FEF7
DDE6
6023
OW
OFFSET D_EOI
INTERRUPT A
FEF9
DDE6
6024
OW
OffSET D_EOI
INTERRUPT B
FEFB DDE6
6025
OW
OffSET D_EOI
INTERRUPT C
FEFD DDE6
6026
OW
OFFSET D_EOI
• INTERRUPT 0
FEFF 57EF
6027
ow
OFFSET DISK_INT
• INTERRUPT E
FFOI DDE6
6028
ow
OFFSET D_EOI
; INTERRUPT F
FF03 65FO
6029
ow
OFFSET VIDEO_IO
• INTERRUPT 10H
FF05
4DFe.
6030
ow
OFFSET EQUIPMENT
; INTERRUPT 11H
FF07 41F8
6031
ow
OFFSET MEMORY_SIZE_DET
• INTERRUPT 12H
FF09 59EC
6032
ow
OFFSET DISKETTE_IO
I INTERRUPT 13H
FFOB 39E7
6033
ow
OFFSET RS232_IO
• INTERRUPT 14H
FFOD 59F6
6034
ow
OFFSET CASSETTE_IO
; INTERRUPT ISH
FFOF ZEES
6035
ow
OFFSET KEYBOARD_IO
; INTERRUPT 16H
FFll ClEF
6036
ow
OFFSET PRINTER_IO
; INTERRUPT 17H
6037
FF13 0000
6038
ow
OOOOOH
I INTERRUPT 18H
6039
ow
OF600H
,
MUST BE INSERTED INTO TABLE LATER
6040
FF15 F2E6
6041
ow
OFFSET BOOT_STRAP
I INTERRUPT 19H
FFl7 6EFE
6042
ow
TIME_OF _DAY
• INTERRUPT
lAH -- TIME OF DAY
FF19 53FF
6043
ow
DUMMY_RETURN
; INTERRUPT IBH -- KEYBOARD BREAK ADDR
FFlB 53FF
6044
ow
DUMMY_RETURN
• INTERRUPT lC -- TIMER BREAK ADDR
FFlD A4FO
6045
ow
VIDEO_PARMS
I INTERRUPT ID -- VIDEO PARAMETERS
FFIF C7EF
6046
ow
OFFSET DISK_BASE
• INTERRUPT
IE -- DISK PARMS
FF21 0000
6047
ow
0
; INTERRUPT
IF -- POINTER TO VIDEO EXT
6048
FF23 50415249545920
6049
OZ OB
'PARITY CHECK 1',13.10
43464543482031
Ff31 00
FF32 OA
FF33 20333031
6050
FI OB
301' ,13.10
FF37 00
FF38 OA
1'-""
FF39 313331
6051
FZ DB
'131' .13,10
FF3C 00
FF3D OA
6052
FF3E
6053
005
PROC NEAR
FF3E 50
6054
PUSH
~X
; SAVE AX
FF3F 684000
6055
HOV
AX.DATA
FF42 SEDS
6056
HOV DS,AX
; SET DATA SEGMENT
FF44 56
6057
POP
AX
1 RESTORE AX
FF45 C3
6058
RET
6059 DDS
'HOP
6060
6061 ;-------------- _________________________________________ _
6062 TEMPORARY INTERRUPT SERVICE ROUTINE
6063
1--------------------------------------------------------
FF41
6064
ORG OFF47H
FF47
6065
all PROC NEAR
FF47 8401
6066 HOV
AH.l
FF49 50
6067 PUSH
AX
1 SAVE REG AX CONTENTS
Ff4A BOFF
6068
HOV
AL.OFFH 1 HASK All UUERRUPTS OFF
FF4C E621
6069
alIT INTAOl,AL
FF4E B020
6070 HOV AL,EOI
FF50 E620 6071
OUT INTAOO,AL
FF52 58
6072
POP AX
; RESTORE REG AX CONTENTS
FF53
6073 DUHMY_RETURN: I NEED IRET FOR VECTOR TABLE
FfS3 CF
6074
IRET
6075
all ENDP
6076
6077 .-- INT 5 ---------------------------------------------------------------
6078 THIS LOGIC WILL BE INVOKED BY INTERRUPT 05H TO PRINT THE
6079 SCREEN. THE CURSOR POSITION AT THE TIME THIS ROUTINE IS INVOKED:
6080 WILL BE SAVED AND RESTORED UPON COMPLETION. THE ROUTINE IS
6081 INTENDED TO RUN WITH INTERRUPTS ENABLED. IF A SUBSEQUENT
6082 'PRINT SCREEN' KEY IS DEPRESSED DURING THE TIME THIS ROUTINE
6083 IS PRINTING IT WILL BE IGNORED.
6084 ADDRESS 50:0 CONTAINS THE STATUS OF THE PRINT SCREEN:
6085
5-112 System BIOS