Commodore Plus 4 - Page 200

COMMAND: R (REGISTER DISPLAY)
PURPOSE Show important 6502 registers. The program status regis
ter, the program counter, the accumulator, the X and Y index registers
and the stack pointer are displayed.
SR AC XR YR SP
SYNTAX R
EXAMPLE: R
PC
; 1002 01 02 03 04 F6
NOTE: ; (semi-colon) can be used to modify register displays in
the same fashion as > can be used to modify memory registers.
COMMAND: S (SAVE);
__
PURPOSE: Save the contents of memory onto tape or disk.
SYNTAX: S<"filename ">.<device>.oddress 1>,<address2>
<"filename"> Any legal Plus/4 filename. To save the data, the filename
must be enclosed in double quotes. Single quotes cannot be used. —
<device> Two possible devices are cassette and disk. To save on
cassette, use device 1: The device number of the Plus/4 disk drive is —
usually 8, However, this can be changed (for instance, when using
more than one disk drive). See your Plus/4 DISK DRIVE MANUAL __
oddress 7 > Starting address of memory to be saved.
oddress 2> Ending address of memory to be saved + 1. All data up
to but not including the byte of data at Ihis address is saved.
—
The file created by this command is a program file. The first two bytes
contain the standing address <address 7 > of the data. The file may
be recalled using the L command.
EXAMPLE S "GAME1', 8, 0400. 0BFF i_J
Saves memory from $0400 to SOBFF onto disk,
COMMAND: T (TRANSFER)
PURPOSE: Transfer segmenis of memory from one memory
area to another
191 ,.