Updated: 11 December 1998

OpenVMS Alpha Guide to 64-Bit Addressing and VLM Features

Appendix A
Appendix A	C Macros for 64-Bit Addressing
Command 1	DESCRIPTOR64
Command 2	$is_desc64
Command 3	$is_32bits
Appendix B
Appendix B	MACRO-32 Macros for 64-Bit Addressing
B.1	Macros for Manipulating 64-Bit Addresses
Command 4	$SETUP_CALL64
Command 5	$PUSH_ARG64
Command 6	$CALL64
B.2	Macros for Checking Sign Extension and Descriptor Format
Command 7	$IS_32BITS
Command 8	$IS_DESC64
Appendix C
Appendix C	64-Bit Example Program
Appendix D
Appendix D	VLM Example Program
Index
Index
Figures
2-1	32-Bit Virtual Address Space Layout
2-2	64-Bit Virtual Address Space Layout
7-1	OpenVMS SCSI-2 Diagnose Buffer (S2DGB) 32-Bit Layout
7-2	OpenVMS SCSI-2 Diagnose Buffer (S2DGB) 64-Bit Layout
8-1	item_list_64a
8-2	item_list_64b
Tables
3-1	64-Bit System Services
3-2	Structures Used by_NEW_STARLET Prototypes
7-1	$QIO [W] Argument Changes
7-2	Drivers Supporting 64-Bit Addresses
7-3	Drivers Restricted to 32-Bit Addresses
7-4	64-Bit Capable I/O Functions
11-1	Functions with Dual Implementations
11-2	Functions Restricted to 32-Bit Pointers
11-3	Callbacks that Pass only 32-Bit Pointers
12-1	New and Changed Components for 64-Bit Addressing
12-2	Passing 64-Bit Values with a Fixed-Size Argument List

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