Convert Character to Hex (CVTCH)


Op Code (Hex) Operand 1 Operand 2

1082 Receiver Source

Operand 1: Character variable scalar.

Operand 2: Character variable scalar.

Description

Each character (8-bit value) of the string value in the source operand is converted to a hex digit (4-bit value) and placed in the receiver operand. The source operand characters must relate to valid hex digits or a conversion  (hex 0C01) exception is signaled.

Characters Hex Digits
Hex F0-hex F9 Hex 0-hex 9
Hex C1-hex C6 Hex A-hex F
The operation begins with the two operands left-adjusted and proceeds left to right until all the hex digits of the receiver operand have been filled. If the source operand is too small, it is logically padded on the right with zero characters (hex F0). If the source operand is too large, a length conformance  (hex 0C08) exception or an invalid operand length  (hex 2A0A) exception is signaled.

Substring operand references that allow for a null substring reference (a length value of zero) may be specified for operands 1 and 2. The effect of specifying a null substring reference for the source is that the bytes of the receiver are each set with a value of hex 00. The effect of specifying a null substring reference for the receiver is that no result is set.

Authorization Required

Lock Enforcement

Exceptions

06 Addressing

08 Argument/Parameter

0C Computation

10 Damage Encountered

1C Machine-Dependent

20 Machine Support

22 Object Access

24 Pointer Specification

2E Resource Control Limit

36 Space Management

44 Protection Violation