Apple ][ DOS 3.3C Source

HTML Source

• DOS 3.3 HTML version

Versions

There are at least 3 version of DOS 3.3

• v1980 August 1980
• v1983 January 1983
• v1984 Copy ][ v5.0

Conditional Compilation Flags

Page 39

ORIGIN  = $1B00
DIAGMOD =     0 ; Diagnostic Mode for RWTS
DOS33B  =     1 ; Version of DOS
ULC     =     0 ; =1 if assemble with lower case patch

Source Includes (Chronological)

Page 39

Source	Page	Description	Symbols
RELOCTR	110	Relocator	BEGIN
DOSINIT	48	DOS Initialize	DBINIT, DBRST, DBVECT
DOSHOOK	44	DOS Hook	CHRIN
CMDSCAN	16	Command Scanner	SCNCMD
XOPNCLS	150	Execute Open Close	GNXTC, GNBC, CLRCCB, GETNUM, HEXNUM, EPR, EMON, EMAXF, EDEL, ELOCK, EUNLK, EVAR, EREN, EAPND, EOPEN, ECLOSE, CLOSE, CLALL
XLODSAV	140	Execute Binary Load Save	EBSV, EBLD, EBRUN, ESAVE, ELOAD
XMISCMD	145	Execute Misc. Commands	EWRITE, EREAD, RWPOSN, EINIT, ECAT, EAS, EINT, EEXEC, OCTD, ICFD, NXTEXC, MVEFTA
DOSGOER	40	DOS Go Error	DOSGO
BLDFTAB	4	Build File Tables	BLDFTAB, MVCSW, MVOSW
CMDTBSL	21	Command Tables	CMDNTB, EC1, CMDSTB
FDOSENT	60	File DOS Entry	SC2, USERENT, ERR2
FOPCLRW	77	File Open Close Read Write	FOPEN, FCLOSE, FRNME, FREAD, FWRITE, RSPBYT, RNXBLK, GETBYT, WSPBYT, WSPBLK, PUTBYT
FDELCAT	55	File Delete Catalog	FLOCK, FUNLCK, FPOSTN, FDEL, FDSUB, RDIR, PRNUM, CLCFCB, RTNFCB
FMTRWIO	73	Execute Format Request	FFMT, RDFDIR
FLOCNXB	63	File Locate Next Byte	RDVTOC, WRVTOC, RDVDIR, WRVDIR, MVVDBA, DCBIO, BADIO, LOCNXB, GNWSEC, INCRRB, INCSCB, MIBDA, DTBLN
FLOCSEC	68	Locate Sector for Record I/O	FNDFIL, GETSEC
FVCBUFS	86	File, Volume, Catalog Buffers	FTTAB, VOLMES
BOOTLDR	8	Boot Loader	READNEXT, GOLOADER, BHERE2, TABLE, SC3, BUMPER, EOFFIX, FIXIT, FIXIT2, UPRCASE, BHERE1, BHERE4, DOSLODR, DOSINIT
COREQUS	24	Core EQU's	Q6L, Q6H, Q7L, Q7H
PRENIBL	104	Prenibblize	PRENIB16
WRITRTN	137	Write Data	WRITE16
POSTNRD	101	Post Nibblize Read	POSTNB16
RDADSEK	106	Read Address Seek	RDADR16, SEEK
MSWAITR	97	Delay for Motor Startup	MSWAIT, NIBL, PD2, NBUF1, NBUF2
WRITADR	134	Write Address	WADR16, WBYTE
RWTSONE	116	Read Write Track Sector	RWTS
RWTSTWO	122	Read Write Track Sector	FORMDSK
FORMATR	82	Format all 35 tracks	DSKFORM, FORMTRK, WTRACK16, INTRLEAV
DOSPTCH	52	Dos Patches	RCPATCH, CLRBYTE, ERROR9X, ENDOFDOS

Extra info.:

• FVCBUFS Max Sectors in File Dir, Command Control Block

Source Includes (Alphabetical)

Source	Page	Lines
BLDFTAB	4	144
BOOTLDR	8	436
CMDSCAN	16	270
CMDTBSL	21	164
COREQUS	24	174
DOSGOER	40	215
DOSHOOK	44	215
DOSINIT	48	226
DOSPTCH	52	56
FDELCAT	55	249
FDOSENT	60	122
FLOCNXB	63	280
FLOCSEC	68	284
FMTRWIO	73	233
FOPCLRW	77	286
FORMATR	82	215
FVCBUFS	86	187
MSWAITR	97	202
POSTNRD	101	165
PRENIBL	104	54
RDADSEK	106	203
RELOCTR	110	337
RWTSONE	116	323
RWTSTWO	122	302
WRITADR	134	123
WRITRTN	137	128
XLODSAV	140	269
XMISCMD	145	254
XOPNCLS	150	290
-------	-----	-----
Total:	n/a	6,406

Unused Source Files

Source	Page	Symbols
TEMPY	128	MOVEOF, GOON, OFF80, FIXIT2
TRASH	129	FNDFIL, FF1, FF2, FF3, MVFN

DOS 3.3 Disk Utility Contents

Filename	Page	File Type	Description
ASMIDSTAMP	3	TXT	Identification Timestamp
BLOCKIO	7	BIN	ProDOS binary utility
DOS.TO.DISK	28	EXEC	Script to convert .OBJ to disk image
DOS33C.OBJ	29	BIN	Binary object of DOS 3.3
EASM	54	TXT	EASM build script to assemble
HELLO.A	90	BAS	Applesoft HELLO A program
HELLO.B	91	BAS	Applesoft HELLO B program
MAKE.MASTER	92	BAS	Applesoft make DOS master
MASTER.3.3E	93	BAS	Applesoft make DOS master
MASTERE.OBJ0	96	BIN	Utility BLOAD'd by MASTER.3.3E

Misc. Files:

• ASMIDSTAMP: "12-JUL-83 #B00090"

Logical vs Physical Sector

DOS always translates a logical sector # into a raw physical sector number.

This is done in two places:

• BOOTLDR, Page #9, Line #, LDA TABLE,X
• MSWAITR, Page #123, Line #105, LDA INTRLEAV,Y

This DOS (sector) order is:

0 7 E 6 D 5 C 4 B 3 A 2 9 1 8 F (Hex) DOS 3.3 Boot Logical (and Copy ][+ Sector Edit)
0 1 2 3 4 5 6 7 8 9 A B C D E F (Hex) DOS 3.3 Boot Physical

If you are reading a DOS disk from assembly language, this is the T/S mapping:

Logical	Physical
T0S0	T0S0
T0S1	T0SD
T0S2	T0SB
T0S3	T0S9
T0S4	T0S7
T0S5	T0S5
T0S6	T0S3
T0S7	T0S1
T0S8	T0SE
T0S9	T0SC
T0SA	T0S?
T0SB	T0S?
T0SC	T0S?
T0SD	T0S?
T0SE	T0S?
T0SF	T0SF
T1S0	T1S0
T1S1	T1S?
T1S2	T1S?
T1S3	T1S?
T1S4	T1S?
T1S5	T1S?
T1S6	T1S?
T1S7	T1S?
T1S8	T1S?
T1S9	T1S?
T1SA	T1S?
T1SB	T1S?
T1SC	T1S?
T1SD	T1S?
T1SE	T1S?
T1SF	T1SF
T2S0	T2S0
T2S1	T2S?
T2S2	T2S?
T2S3	T2S?
T2S4	T2S?

Legend:

• Logical = Track/Sector used by DOS mapped to a physical sector # (i.e. Copy ][+ Sector Editor)
• Physical= Raw Track/Sector actually read/written on disk.

Also See

• http://www.textfiles.com/apple/ANATOMY/