ElmoMC SimplIQ Software Manual - Manual (Page 90)

SimplIQ Software Manual Program Development and Execution
MAN-SIMSW (Ver. 1.4)
6-28
6.7.4 Machine Status
The DB##MS command returns the status of all existing VAC machines.
Syntax:
DB##MS
This command returns a string in hexadecimal binary format containing a 16-bit number.
Every 4 bits characterize the status of the VAC machine; therefore, the command can give
the status of a maximum of four VAC machines. The most significant bit (bit 4) is dedicated
to run-time errors. If it is set to 1, it indicates that a run-time error has occurred. The
DB##ES[N] command reports further details about the specific VAC errors and resets this
bit. If the run-time error bit is 0, no run-time error has occurred or else it has been reset by a
previous DB##ES[N] command.
The remaining least significant bits (0…3) of the returned status use the following values:
0: Halted
1: Running
2: Idle/Not running
3: Aborted/Fault
4: Does not exist
6.7.5 Program Status
The DB##PS command returns the status of the user program.
Syntax:
DP##PS[N]
where N is a handle of a specified VAC machine.
The DB##PS command returns a string containing hexadecimal binary data with the
following information:
Name
Meaning
Data Type Size
in Bytes
1 Status Running status ( section 6.7.4 ). Signed short 2
2 Error code Last error code or 0 for no error
(
section 6.7.6 ).
Signed short 2
3 Program counter
(PC)
Program counter of current
executing line. Unsigned short 2
4 Base pointer (BP) Current base pointer, which is the
saved stack pointer marking the
function entry point. BP is used to
reference local variables of a
function. Unsigned short 2
5 Stack pointer (SP) Current stack pointer. Unsigned short 2
The non-zero error code indicates that an error has occurred.