Texas Instruments 990 Operation Manual page 49

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Although the AL command may be omitted and default assignments used for PX9MTP LUNOs,
neither parameter may be omitted if the AL command is used.
Error message:
MX02
Missing required parameter, invalid device name, or invalid
LUNO. Re~nter the command.
Application note: The AL command may be needed when using the assembler, text editor,
standard loader, linking relocating loader, upfront loader, absolute loader, and absolute dump
facilities. The user should refer to the documentation for the appropriate software component to
determine the LUNOs used by that component.
Examples:
.AL 2 CS1
.AL,1,OUM
The first example assigns LUNO 2 to cassette CSl. The second example assigns LUNO I to the
dummy device. Both statements are terminated by a carriage return.
3.4.3 LOAD PROGRAM (LP). The Load Program command initiates a program load with the
standard loader.
Syntax definition:
LP
[{i . ..}
[<Juno>] [
{i . ..}
<bias>] ]
The command is terminated by a carriage return.
Parameters.:'
luno Logical unit number of the input device.
bias Base address of the relocatableobject code.
Parameter default values:
If the logical unit number is not specified, a value of 7 is used. Unless reassigned by an Assign
LUNO (AL) command, LUNO 7 is assigned to cassette CSI.
If the bias address is not specified, a value of A0
16
is
used. The bias may be overridden by the
appearance of a D tag character in the object code.
Description: The 990 standard object code loader resides as a firmware program in a 256-word
ROM. When the software system is under control of PX9MTP, a program is loaded by a call to
the ROM loader. After the program is loaded, the program entry point, if it exists, is placed in
the user PC; then control is returned to the monitor. The user may- execute or debug his
program by issuing an EX or RU command to the monitor.
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