PLITRAN21

PLITRAN21 translates two-byte data from a source buffer to one-byte data in a target buffer.

p

Address of the target buffer.

q

Address of the source buffer.

n

Length of the source buffer. The buffer length must be nonnegative and must have a computational type. The buffer length is converted to type size_t.¹

t

Address of the 64K-byte translate table.

The target buffer must be at least half as large as the source buffer.

The translate table must be aligned on a doubleword boundary. The easiest way to force this alignment is to add the attribute ALIGNED(8) to the declare of the table.

On z/OS, PLITRAN21 is implemented via inline code using the CU21 instruction.