OMEN ALPHA
=========
OMEN Computers - - -
https://github.com/osmibity
- - - Page: 15
address in the FIRST download record is recorded as the program
BASE address (See 'U' command). If an [address] is given, the
address fields of each record are adjusted so that the code image
will be loaded into memory beginning at that address, otherwise it
is placed in memory at the absolute address contained in each
record.
If you accidently enter this command, you may enter either 'S9' or
':00' to signify a null download file and return to the command
prompt.
2.10 M <address>
Displays memory in HEX/ASCII dump format starting at the specified
address. ESCAPE, SPACE, and CARRIAGE-RETURN can be used to control
the listing, the same is with the 'D' command.
2.11 O <port> <data>
This command writes the <data> byte to the specified 8085 I/O
<port>.
2.12 R [rp value]
Changes the contents of the user program register pair <rp> to the
specified <value>. Valid pairs are BC, DE, HL, SP, PC, and PSW. If
no operands are given, the contents of the user program registers
are displayed.
2.13 S ON|OFF
Controls the handling of subroutine calls when in trace mode (see
below). When 'S' is set ON, subroutines will be be traced in the
normal fashion. When set OFF, subroutines calls are not traced,
and trace will resume at the next instruction following the CALL
(After the subroutine executes).
WARNING: DO NOT SET BREAKPOINTS IN THE SUBROUTINES WHEN 'S' IS SET
OFF. When 'S' is set off, MON85 considers the subroutine (and all
of it's embedded instructions) to be one single operation. If a
breakpoint is encountered inside the subroutine, TRACE will lose
the address at which to resume following the subroutine call. This
will cause unpredictable action when the subroutine returns.
Otherwise, 'S' may be turned on and off at any time with no
adverse effects. The default value for 'S' is ON.
2.14 T ON|OFF
Turns TRACE mode ON and OFF. When TRACE is set ON, and the GO
command is issued, MON85 will first prompt with 'T>' before
beginning program execution.
Entering a space (' ') will display and execute one instruction,
and return to the 'T>' prompt.
Entering '?' will display the processor registers. (If the 'A'
switch is set ON, they will always be displayed following every
instruction that is traced).
An ESCAPE charecter will cause MON85 to return to the usual
command prompt (TRACE remains ON, and will resume with the next
'G' command).
