USING Map Record

Field	Size	Description
Record type	XL1	X'00' USING record X'20' POP record X'40' PUSH record X'80' DROP record
USING Flag	XL1	USING type (ORDINARY, LABELED, DEPENDENT, LABELED DEPENDENT) X'00' Ordinary USING X'10' Labeled USING X'20' Dependent USING X'30' Labeled Dependent USING
Location ESDID	FL4	The value of the ESDID of the current section when the USING, DROP, PUSH USING, or POP USING was issued
Statement number	FL4	The statement number of the USING, DROP, PUSH USING, or POP USING
Location Counter	FL4	The value of the location counter when the USING, DROP, PUSH USING, or POP USING was issued
USING value	FL4	The value of the USING statements first-operand expression. This is zero for PUSH, POP, and DROP.
Last statement	FL4	The last statement number for which this base-register was used in converting a symbolic address into its base-displacement form. This is zero for PUSH, POP, and DROP.
USING ESDID	FL4	For ordinary and labeled USING instructions, this field indicates the ESDID of the section specified on first operand of the USING statement. For dependent USING instructions, this field indicates the ESDID of the section specified on the corresponding ordinary USING instruction that is used to resolve the address. This is zero for PUSH, POP, and DROP.
Register	XL1	The register used in the USING. This is zero for PUSH and POP. Where a DROP with no operand or a DROP ALL is specified, this field contains X'FF'.
Displacement	XL2	The maximum displacement for this USING register. This is zero for PUSH, POP, and DROP.
	XL1	Reserved
USING range	FL4	The value of the USING range.
	XL2	Reserved
Label offset	FL4	The offset from the beginning of this record to the label and USING text. A value of binary zeros indicates that there is no label or USING text.
Label length	FL4	The length of the label and USING text. This length field is rounded up to a doubleword boundary. Hence if the text is 13 bytes in length, the length is set at 16 and the text space padded on the right. This is zero for PUSH and POP.
Label	CL(n)	The source text for the label and USING from the source USING record. This field is null for PUSH and POP.