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Michaelangel007 / apple2_dos33

Apple ][ DOS 3.3
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Patch area at $3A84 #1

Closed TommyGH closed 6 years ago

TommyGH commented 7 years ago

As an fyi, after 3A81: you have the following:

=== DOS 3.3 D? PATCH ===
3A84:AD BD 35 LDA $35BD ; TODO 3A87:8D E6 35 STA $35E6 ; TODO 3A8A:8D EA 35 STA $35EA ; TODO 3A8D:BA TSX
3A8E:8E 9B 33 STX $339B ; TODO 3A91:4C 7F 33 JMP $337F ; TODO === DOS 3.3 ? PATCH ===

"Beneath Apple Dos (Updated for Apple IIe)" on p. 8-41 has this description:

"BA84-BA93 Patch called from $B683. Set file manager parameters, byte offset, and record number to zero. Save stack in stack register save area. Exit through $B37F (exit file manager)."

This code is in Apple Dos 3.3 (1983).

Michaelangel007 commented 6 years ago

Thanks Tommy. This has been fixed now.

                        ; === DOS 3.3 D PATCH ===       Called from GOBACK+5 = $3683
3A84:AD BD 35                       LDA CCBBYT                                      
3A87:8D E6 35                       STA DCBCSB                                      
3A8A:8D EA 35                       STA DCBCRR                                      
3A8D:BA                             TSX                                             
3A8E:8E 9B 33                       STX ENTSTK                                      
3A91:4C 7F 33                       JMP GOODIO                                      
                        ; === DOS 3.3 D PATCH ===

and

3683:4C 46 25       121             JMP FIXIT2      ;Go to FIXIT2 as exit           ; Oh look, we have lowercase CapsLock on //e!
                        ; === DOS 3.3 D PATCH ===                                   
3683:4C 84 3A       121             JMP FIXIT3                                      ; DOS 3.3 1983
                        ; === DOS 3.3 D PATCH ===