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Manual for ProDev DDT8_DDT16
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DDT.Manual
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CHAPTER.7
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.txt
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AppleWorks Document
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1993-08-05
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3KB
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44 lines
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CHAPTER 7
I"QUit" exits the ProDev DDT. The Quit command assumes the ProDev DDT was J
Hentered with a "JSR" and exits via an "RTS" instruction. If you entered G
Ethe ProDev DDT from the system monitor with "Cn00G", entering a Quit K
Icommand will return you to the system monitor. If any Real breaks remain F
in the program a warning message, "REAL BRKS IN", will be displayed.
JDo NOT use the "QU" command if you have entered the DDT via the "Button". L
JWhen you enter the DDT via the "Button" no return address is available on (
the stack for the "QU" command to use.
FWhen you exit via the Quit command, the ProDev DDT remains active and (
will interpret any breaks that occur.
GO TO MONITOR
--{DDT8}--
** - GO TO MONITOR
I The command "**" places you in the Apple's monitor where you may use >
any of the monitor commands. Use <ctrl>Y to reenter the DDT.
--{DDT16}--
** [I,C] - GO TO MONITOR
H "**" places you in the Apple's monitor where you may use any of the E
Cmonitor commands. Use <ctrl>Y to reenter the DDT. From the monitor >
you may enter the control panel to make changes of use CDAs.
"**I" disables interrupts before entering the monitor.
I "**C" disables interrupts and enables "Cloaking" before entering the F
Dmonitor. The ONLY way to reenter the DDT after enabling cloaking is H
Fwith the "Button". Cloaking does a hardware write protect of the DDT. C
AIn its write protected mode the DDT is not vulnerable to program F
Dcrashes that might otherwise disable it by inadvertently writing to
the cards memory space.
G The DDT16 uses the ][GS vector at $00/03FB. If this 3 byte jump is F
trashed then pressing the DDT "Button" will do unpredictable things.
"**" command summary.E
"**" - Go to monitor, interrupts on, ^Y enabled. {DDT8 or DDT16}=
"** I" - Go to monitor, interrupts off, ^Y enabled. (DDT16}K
"** C" - Go to monitor, interrupts off, ^Y disabled, Cloaking on. {DDT16}
GIf any Real breaks remain in the program a warning message, "REAL BRKS I
IN", will be displayed. This is to remind you not run the program. The
Ebreaks would not be interpreted by the ProDev DDT. To clear the Real L
Jbreaks, use <ctrl>Y or press the "Button" to return to the ProDev DDT and H
Fuse the "RA" or "RB
[A]" command. You may now use "**" to reenter the
system monitor.