Model 100 RAM Variables

Address	Description	Initialized
F5F0	Start of System	035A
F5F2	SP upon power-down	035C
F5F4	HIMEM value	035E
F5F6	Power-on hook	0360
F5F9	BCR Interrupt hook	0363
F5FC	UART DR hook	0366
F5FF	TP interrupt hook	0369
F602	LPS interrupt hook	036C
F604	Power-on hook	036F
F60F	OptROM hook	0379
F62A	OptROM installed	0394
F62B	20 or 10 pps
F639	Cursor row	03A3
F63A	LCD cursor column	03A4
F63B	LCD active lines	03A5
F63C	LCD active columns	03A6
F63D	Label line flags	03A7
F648	Reverse video if 1	03B2
F64E	X-pixel set	03B8
F64F	Y-pixel set	03B9
F657	Power-down value	03C1
F65B-F660	Initial Stat setting	03C5
F674	LPOS printer column	03DE
F675	Output 0=LCD 1=LP	03DF
F678	Top of available RAM	03E2
F685	Keyboard buffer
F788	POS- cursor position
F789	Key labels
F88C	Location of PASTE buffer
F923	Seconds- units
F924	Seconds- tens
F925	Minutes- units
F926	Minutes- tens
F927	Hours- units
F928	Hours - tens
F929	Day of month- units
F92A	Day of month- tens
F92B	Day of week
F92C	Month
F92D	Year- units
F92E	Year- tens
F962-F9B9	Directory 6BF1+
F9BA-F9C4	OptROM or filename
F9C5-FA74	Directory
FAAC	Character recently sent
FAAE	Port A8 contents
FAC0	Lowest installed RAM
FADA-FB14	RST 38 hooks - all RET
FB16-FB39	RST 38 hooks - all error 5
FBB0	Top of DO files
FBB2	Top of CO files
FC18	Floating point accumulator 1
FC69	Floating point accumulator 2
FC82	Maxfiles?
FC93-FC98	Filename
FCC0-FDFF	ALT-LCD
FE00-FF3F	LCD memory
FF40	Distant computer sent XOFF
FF41	This Model 100 sent XOFF
FF42	Is XOFF enabled?
FF44	SOUND OFF=1 ON=0
FF45	Port E8 contents
FF8B	Address of baud rate