Non-cross memory mode

The caller must set up registers as follows:

Register(s)	Bit(s)	Contents

0		ECB address or 0 if no ECB is specified
1	0	0 for register format 1 for list format
	1-7	Same as bits 1-7 of VSLFLAG1 field of VSL
		for register format; irrelevant for list format
	8-31	24-bit starting address on which the service
		is to be performed for register format; 24-bit address of user's first VSL for list format

2	0-7	Same as VSLFLAG2 field in VSL for register
		format; irrelevant for list format
	8-31	24-bit ending address + 1 for which the service is to be performed for register format; irrelevant for list format

3		Irrelevant

4		TCB address or 0

5-13		Irrelevant

14		Return address

15		Entry point to page services, obtained from the CVT field, CVTVPSIB.

On return, the page service sets the registers as follows:

The return codes are as follows:

Code: Meaning
0: The requested function was processed successfully. If the function was page-fix or page-load, and an ECB was supplied, it will be posted.
8: The requested function was page-fix or page-load with an ECB. The function will be processed asynchronously and the ECB will be posted upon completion.
12: The requested function was page-out and the function was unsuccessful for at least one of the specified pages.