beneath-apple-dos/D2S1/CORRECTIONS#064000.txt

126 lines
2.1 KiB
Plaintext
Raw Normal View History

.na
.nf
.ll60
.br
SIG 1-2
.sp3
3-13
.sp1
roughly 72K of space available to the user; typical for
5 1/4 inch single density drives.
.sp3
4-6
.sp1
2E-50 Second file descriptive entry
.sp3
4-17
.sp1
user to read and display the contents of sectors. Some of
.sp3
6-2
.sp1
Q7L with Q6L = Read
Q7L with Q6H = Sense Write Protect
Q7H with Q6L = Write
Q7H with Q6H = Load Write Latch
.bp
SIG 3-4
.sp3
8-5
.sp1
9E9E If EXECing, call A682 to get the next byte from the
.sp3
8-6
.sp1
index into the state handler table (9D10), go to
.sp3
8-8
.sp1
table of valid keywords (A941).
.sp3
8-9
.sp1
A1AE-A1B8 Clear the file manager parameter list at B5BB to
.sp3
8-13
.sp1
A4DC Skip a line on the screen.
.sp3
8-24
.sp1
ACA8-ACBA Read a data byte.
.sp1
AACA-ACD9 WRITE A RANGE OF BYTES subcode handler.
.sp1
ACDA-ACEE Write a data byte.
.sp3
8-27
.sp1
AF3A Otherwise, set up RWTS pointer (AF4B).
.sp1
next (C=1)).
.sp3
8-28
.sp1
B052-B0B5 Read/Write Track/Sector (RWTS) driver.
.sp1
Translate vol mismatch to RC=7, write protected to
RC=4 and all other errors to RC=8 (I/O error).
.sp3
8-29
.sp1
B134-B15A Add a new data sector to file.
.sp3
8-30
.sp1
B20B If not, advance index to next entry in sector and
.sp3
8-34
.sp1
Call SETVID ($FE93) and SETKBD ($FE89).
.sp3
8-35
.sp1
$20=Volume mismatch, $40=Drive error, $08=INIT error.
.sp1
Uses Write Translate Table ($BA29).
.sp3
8-37
.sp1
Y-reg:number of autosyncs to write
.sp3
8-39
.sp1
Jump to DSKFORM at $BEAF.
.sp1
Use ILEAV table at $BFB8 for software sector
.sp3
8-41
.sp1
BFC8-BFD8 Patch area starts here.
.bp
SIG 5-6
.sp3
A-16
.sp1
using ZAP to patch a catalog entry into track 17 for each
.sp3
C-4
.sp1
DCT Device Characteristics Table. Used as an
.sp3
C-8
.sp1
subroutine. Similar to a GOSUB statement
.sp1
input data is passed from the
.sp3
C-10
.sp1
language instruction. JMP is the opcode
.sp3
C-15
.sp1
the voltages which represent 0's and
.br