ASMA031E

Invalid immediate or mask field
Explanation
The value of an immediate or mask operand of a machine instruction
requires more bits to represent it than allowed by the instruction,
or the value of the immediate operand exceeds 9 on an SRP instruction
or 15 on an MC instruction.

Immediate fields used in an arithmetic
context are allowed to be signed, those in a logical context are not;
for example: 
    AHI  r1,-30000   is valid, but
    AHI  r1,50000    is not

    TMH  r1,50000    is valid, but
    TMH  r1,-30000   is not

System action
The instruction assembles as zero.

Programmer response
Use a valid immediate operand, or specify the immediate information
in a DC statement or a literal and change the statement to a non-immediate
type.

Severity
8