IBM 770 manual Samples, Data Structure, SMAPI BIOS B-53

Samples

Data Structure

Assembler Language

;

;Smapi BIOS Header

SMB_HEADERSTRUC

@SMBHDR_SIG	DB	4	dup (?) ;	+ðð -		Signature
@SMBHDR_VER	DB	?	;	+ð4 -		Major version
@SMBHDR_VER_VER	DB	?	;	+ð5 -		Minor version
@SMBHDR_LEN	DB	?	;	+ð6 -		Length
@SMBHDR_CHKSUM	DB	?	;	+ð7 -		Checksum
@SMBHDR_INFO	DW	?	;	+ð8 -		Information word
@SMBHDR_RSV1	DW	?	;	+ðA -		Reserve 1
@SMBHDR_R_OFFSET	DW	?	;	+ðC -		Real mode offset
@SMBHDR_R_SEGMENT	DW	?	;	+ðE -		Real mode segment
@SMBHDR_RSV2	DW	?	;	+1ð -		Reserve 2
@SMBHDR_P16_OFFSET	DW	?	;	+12	-	16-bit protected mode offset
@SMBHDR_P16_BASE	DD	?	;	+14	-	16-bit protected mode base address
@SMBHDR_P32_OFFSET	DD	?	;	+18	-	32-bit protected mode offset
@SMBHDR_P32_BASET	DD	?	;	+1C	-	32-bit protected mode base address
SMB_HEADER	ENDS

SMAPI BIOS B-53