DIGITAL-LOGIC Microspace MSM586SEN Technical User Manual page 69

DIGITAL-LOGIC AG
BIOS Data Area Definitions
Location Description
92h - 93h Scratch area for diskette media. Low byte for drive A, high
byte for drive B.
94h - 95h Current track number for both drives. Low byte for drive A,
high byte for drive B.
96h Keyboard Status
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
97h Keyboard Status
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
98h - 99h Offset address of user wait flag
9Ah - 9Bh Segment address of user wait flag
9Ch - 9Dh Wait count, in microseconds (low word)
9Eh - 9Fh Wait count, in microseconds (high word)
A0h Wait active flag
bit 7
bits 6-1 = Reserved
bit 0
A1h - A7h Reserved
A8h - ABh Pointer to video parameters and overrides
ACh - FFh Reserved
100h Print screen status byte
Continued...
= (1) Read ID
= (1) Last code was first ID
= (1) Force to Num Lock after read ID
= (1) Enhanced keyboard installed
= (1) Right ALT key active
= (1) Right Control key active
= (1) Last code was E0h
= (1) Last code was E1h
= (1) Keyboard error
= (1) Updating LEDs
= (1) Resend code received
= (1) Acknowledge received
= Reserved
= (1) Caps lock LED state
= (1) Num lock LED state
= (1) Scroll lock LED state
= (1) Time has elapsed
= (1) INT 15h, AH = 86h occurred
MSM586SEN/SEV Manual V1.5E
69