Commodore 128 Programmer's Reference Manual page 552

542 COMMODORE 128
U
Commodore 64
LABEL
SGNFLG
BITS
ARGEXP
ARGHO
ARGSGN
ARISGN
FACOV
FBUFPT
CHRGET
CHRGOT
TXTPTR
RNDX
STATUS
STKEY
SVXT
VERCK
C3PO
BSOUR
SYNO
LDTND
DFLTN
DFLTO
PRTY
DPSW
MSGFLG
PTR1
PTR2
TIME
CNTDN
BUFPNT
INBIT
BITCI
RINONE
t Memory Map
HEX
ADDRESS
0067
0068
0069
006A-006D
006E
006F
0070
0071-0072
0073-008A
0079
007A-007B
008B-008F
0090
0091
0092
0093
0094
0095
0096
0097
0098
0099
009A
009B
009C
009D
009E
009F
00A0-00A2
00A3-00A4
00A5
00A6
00A7
00A8
00A9
(continued)
DECIMAL
LOCATION
103
104
105
106-109
no
111
112
113-114
115-138
121
122-123
139-143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160-162
163-164
165
166
167
168
169
DESCRIPTION
Pointer: Series Evaluation Constant
Floating Accum. #1: Overflow Digit
Floating-Point Accumulator #2:
Exponent
Floating Accum. #2: Mantissa
Floating Accum. #2: Sign
Sign Comparison Result: Accum. #1
vs#2
Floating Accum. #1. Low-Order
(Rounding)
Pointer: Cassette Buffer
Subroutine: Get Next Byte of BASIC
Text
Entry to Get Same Byte of Text
Again
Pointer: Current Byte of BASIC Text
Floating RND Function Seed Value
Kernal I/O Status Word: ST
Flag: STOP key / RVS key
Timing Constant for Tape
Flag: 0 = Load, 1 = Verify
Flag: Serial Bus—Output Char.
Buffered
Buffered Character for Serial Bus
Cassette Sync No.
Temp Data Area
No. of Open Files / Index to File
Table
Default Input Device (0)
Default Output (CMD) Device (3)
Tape Character Parity
Flag: Tape Byte-Received
Flag: $80 = Direct Mode, $00 =
Program
Tape Pass 1 Error Log
Tape Pass 2 Error Log
Real-Time Jiffy Clock (approx) 1/60
aec
Temp Data Area
Cassette Sync Countdown
Pointer: Tape I/O Buffer
RS-232 Input Bits / Cassette Temp
RS-232 Input Bit Count / Cassette
Temp
RS-232 Flag: Check for Start Bit
u
u
0
u
u