Apple ][ DOS 3.3C Source
HTML Source
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.