IBM XT 5160 Technical Reference page 162

66
PAGE
67 C INCLUDE POSTEQU. INC
68 C
.
- --- --
-
--- -- ----- ----- -
--
-
--- ---
--
-
-- ---
69 C EQUATES USED BY POST AND BIOS
70
C
.
--- -- --
-
- -
-- ---- -
- --
-- - -- - ---- ---- ------
71
C
72
=
0000
C SYSTEM EQU 0
o
PC-XT. 1 PC-AT
73
=
OOFB C MODEL BYTE EQU OFBH SYSTEM MODEL BYTE
74
=
0000 C SUB MODEL BYTE EQU OOOH SYSTEM SUB-MODEL TYPE
75
=
0001
C
BIOS LEVEL EQU 001H BIOS REVISION LEVEL
76
C ENDIF
77
C
78 C ; --------- KEYBOARD I NTERFACE AND 0 I AGNOST I C CONTROL REGISTERS -----------------
79
=
0060 C PORT A EQU 060H
;
KEYBOARD SCAN CODE / CONTROL PORT
80
=
0061 C
PORT-B
EQU 061H ; PORT BREAD / WR I TE 0 I AGNOSTI C REG I STER
81
=
0062
C
PORT-C
EQU 062H
;
8255 PORT C ADDR
82
=
0063
C CMD_PORT
EQU
063H
83
C
84 C
85 0060 C KB DATA EQU 60H KEYBOARD SCAN CODE PORT
86 0061 C
KB-CTL
EQU 61H CONTROL BI TS FOR KEYBOARD SENSE DATA
87 0054
C
ID-2A
EQU 054H AL TERNATE 2ND I 0 CHAR FOR KBX
88 OOEO
C
MC-EO
EQU
224 GENERAL MARKER CODE
89 OOEI C
MC::::EI
EQU 225 PAUSE KEY MARKER CODE
90 C
91 C
92 00F3 C RAM PAR ON EQU 1111001lB AND MASK FOR PAR I TY CHECK I NG ENABLE ON
93 OOOC
C
RAM-PAR-OFF
EQU
OOOOIIOOB
OR MASK FOR PAR I TY CHECK I NG ENABLE OFF
94 OOCO
C PARITY_ERR
EQU
1 1000000B R/W MEMORY - I/O CHANNEL PARITY ERROR
95
0001
C GATE2 EQU OOOOOOOIB TIMER 2 INPUT GATE CLOCK BIT
96 0002 C SPK2 EQU 000000 I OB SPEAKER OUTPUT OAT A ENABLE BI T
97 0010 C REFRESH_BI T EQU OOOIOOOOB REFRESH TEST BI T
98 0020 C OUT2 EQU 00 I OOOOOB SPEAKER T I MER OUT2 INPUT BIT
99 0040
C 10 CHECK
EQU
OIOOOOOOB I/O (MEMORY)
CHECK OCCURRED BI T MASK
100 0080
C PARI TY _CHECK
EQU
10000000B MEMORY PAR I TY CHECK OCCURRED BI T MASK
101 C ENDIF
IBM Persona I Computer MACRO Assemb I er Vers
i
on 2.00
HEADER --- 01/08/86 POWER ON SELF TEST (POST)
POSTEQU. INC - COMMON EQUATES
1-2
01-10-86
HEADER (01/10/86)
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