Date   : Tue, 24 Apr 1984 06:42:00 MST (Tue)
From   : Keith Petersen <W8SDZ@Simtel20.ARPA>
Subject: M730DIAL.PAT - Fixing MDM730 alternate dialing bug

;
; SUBJECT: MDM730 ALTERNATE DIALING FIX
; FROM: IRV HOFF W6FFC
; DATE: 24 APR 84
;
;      The following patch will fix a problem with the alternate dial-
; ing routine in MDM730 which caused unreliable results.  Even though
; you may never plan to use alternate dialing, it would only take a few
; minutes to update your MDM730.COM file to be current.
;
        ORG    0819H
       JNZ     0803H           ;C2 03 08
       POP     H               ;E1
       JMP     0799H           ;C3 99 07
       MVI     A,' '           ;3E 20
       MOV     B,A             ;47
       JMP     0D00H           ;C3 00 0D

        ORG    0D00H
       CALL    2B9DH           ;CD 9D 2B
       POP     H               ;E1
       RET                     ;C9
;
;              1) rename this file so it can be assembled:
;
; A>REN M730DIAL.ASM=M730DIAL.PAT
;
;              2) assemble to get M730DIAL.HEX like this:
;
; A>ASM M730DIAL
;
;              3) then merge into the file using DDT (or SID, etc.)
;
; A>DDT MDM730.COM          ;DDT calls up the original file
; DDT VERS 2.2
; NEXT  PC
; 4A00 0100
; -M730DIAL.HEX                        ;merges this patch file
; -R
; NEXT  PC
; 4A00 0000
; -G0                          ;exits DDT to CP/M prompt
;
; A>SAVE 73 MDM703.COM              ;now have a modified file
;
;              4) all finished.  If you want to use the "S" command
;                 with DDT, you could just add the following bytes
;                 directly in 2-3 minutes and be done, then save 73:
;
;
; 0819  C2 03 08 E1 C3 99 07
; 0820  3E 20 47 C3 00 0D
; 0D00  CD 9D 2B E1 C9
;                                      - Irv Hoff