#define jio-RamBaseAddr 0x1 fff
l*
r/w, sets extra ram base
address
*/
l*
now the magic bits in each register (and boy, are there a lot of
them!)
*/
l*
bits for PclntReq, PclntGen registers
*/
#define JPCINTB-IRQ1 (0)
l*
active high
*l
#define JPCINTB-IRQ3 (1
)
l*
active low
*/
#define JPCINTB-IRQ4 (2)
l*
active low
*/
#define JPCINTB-IRQ7
(3)
l*
active low
*/
l*
pc side interrupts
*/
#define JPCKEYINT (Oxv
l*
keycode available
*/
#define JPCSENDINT (Oxfc)
l*
system request
*/
#define JPCLPTl INT (Oxf6)
l*
parallel
port
acknowledge
*/
l*
bits for RamSize
*/
#define JRAMB-EXISTS
(0)
l*
set if there
is
any ram at
all
*/
#define JRAMBZMEG (1)
l*
set if 2 meg, clear if 112
meg
*l
#define JRAMF-EXISTS
(1
<<0)
#defineJRAMFZMEG (1<<1)
l*
bits for control register
*/
#define JCNTRLB-ENABLEINT
(0)
l*
enable amiga interrupts
*/
#define JCNTRLB-DISABLEINT (1)
l*
disable amiga interrupts
*/
#define JCNTRLB-RESETPC (2)
l*
reset the pc. remember to
strobe
*/
l*
ReleasePcReset afterwards
*/
#define JCNTRLECLRPCINT
(3)
l*
turn
off all amiga->pc ints
*/
l*
constants for sizes of various janus regions
*/
#define JANUSTOTALSIZE
(5
1 2* 1 024)
/*
112 megabyte
*/
#define JANUSBANKSIZE (1
28*
1024)
l*
128K per memory
bank
*/
#define JANUSNUMBANKS (4)
/*
four memory
banks
*/
#define JANUSBANKMASK (0x60000)
/*
mask bits for bank
region
*/
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