I was trying to elicit a response to see if it was worth coming back to ask anyone for help by procuring an RS422 modem, bolting it to the back of the naomi and calling the dreampi server, or doing the equivalent in software via demul.
I've tested not only in DEMUL but also MAME and ALSO with some chopped up Kenju Atomiswave Loader code that the SH4 SCIF is available in the DREAMCAST BASE of the naomi, and it's attached to a differential adapter and has next to nothing to do with the MIE aside from being set up by the Z80 inside and turning RS485 into maple code /******** BUTTON ***********************************************************/
#define NJD_DGT_KR (1 << 31) /* Lever Right */
#define NJD_DGT_KL (1 << 30) /* Lever Left */
#define NJD_DGT_KD (1 << 29) /* Lever Down */
#define NJD_DGT_KU (1 << 2
/* Lever Up */#define NJD_DGT_B27 (1 << 27) /* Button 27 */
#define NJD_DGT_B26 (1 << 26) /* Button 26 */
#define NJD_DGT_B25 (1 << 25) /* Button 25 */
#define NJD_DGT_B24 (1 << 24) /* Button 24 */
#define NJD_DGT_B23 (1 << 23) /* Button 23 */
#define NJD_DGT_B22 (1 << 22) /* Button 22 */
#define NJD_DGT_B21 (1 << 21) /* Button 21 */
#define NJD_DGT_B20 (1 << 20) /* Button 20 */
#define NJD_DGT_B19 (1 << 19) /* Button 19 */
#define NJD_DGT_B18 (1 << 1
/* Button 18 */#define NJD_DGT_B17 (1 << 17) /* Button 17 */
#define NJD_DGT_B16 (1 << 16) /* Button 16 */
#define NJD_DGT_B15 (1 << 15) /* Button 15 */
#define NJD_DGT_B14 (1 << 14) /* Button 14 */
#define NJD_DGT_B13 (1 << 13) /* Button 13 */
#define NJD_DGT_B12 (1 << 12) /* Button 12 */
#define NJD_DGT_B11 (1 << 11) /* Button 11 */
#define NJD_DGT_B10 (1 << 10) /* Button 10 */
#define NJD_DGT_B9 (1 << 9) /* Button 9 */
#define NJD_DGT_B8 (1 <<
/* Button 8 */#define NJD_DGT_B7 (1 << 7) /* Button 7 */
#define NJD_DGT_B6 (1 << 6) /* Button 6 */
#define NJD_DGT_B5 (1 << 5) /* Button 5 */
#define NJD_DGT_B4 (1 << 4) /* Button 4 */
#define NJD_DGT_B3 (1 << 3) /* Button 3 */
#define NJD_DGT_B2 (1 << 2) /* Button 2 */
#define NJD_DGT_B1 (1 << 1) /* Button 1 */
#define NJD_DGT_B0 (1 << 0) /* Button 0 */
#define NJD_DGT_ST NJD_DGT_B8 /* Start Button */
#define NJD_DGT_TA NJD_DGT_B0 /* A Button */
#define NJD_DGT_TB NJD_DGT_B1 /* B Button */
#define NJD_DGT_TC NJD_DGT_B2 /* C Button */
#define NJD_DGT_TX NJD_DGT_B3 /* X Button */
#define NJD_DGT_TY NJD_DGT_B4 /* Y Button */
#define NJD_DGT_TZ NJD_DGT_B5 /* Z Button */
#define NJD_DGT_TL NJD_DGT_B6 /* L Button */
#define NJD_DGT_TR NJD_DGT_B7 /* R Button */
/******** DEVICE ID *******************************************************/
#define NJD_DEV_NODEVICE 0 /* Device Unconnected */
#define NJD_DEV_SYSKEYBOARD 1 /* System Keyboard */
#define NJD_DEV_SYSMOUSE 2 /* System Mouse */
#define NJD_DEV_JOYSTICK 3 /* Joystick */
#define NJD_DEV_UNDEFINED 255 /* Unknown Device */
/******** PERIPHERALS TO USE *********************************************/
#define NJD_PER_USESYSKEYBOARD (1 << 0) /* System Keyboard */
#define NJD_PER_USESYSMOUSE (1 << 1) /* System Mouse */
#define NJD_PER_USEJOYSTICK (1 << 2) /* Joystick */
#define NJD_PER_USEALL (7) /* All */
/******** PORT NUMBER ******************************************************/
#define NJD_PORT_SYSKEYBOARD 0 /* System Keyboard */
#define NJD_PORT_SYSMOUSE 1 /* System Port */
#define NJD_PORT_JOYSTICK1 2 /* Joystick1 */
#define NJD_PORT_JOYSTICK2 3 /* Joystick2 */
#define NJD_PORT_JOYSTICK3 4 /* Joystick3 */
#define NJD_PORT_JOYSTICK4 5 /* Joystick4 */
#define NJD_PORT_JOYSTICK5 6 /* Joystick5 */
#define NJD_PORT_JOYSTICK6 7 /* Joystick6 */
#define NJD_PORT_JOYSTICK7 8 /* Joystick7 */
#define NJD_PORT_JOYSTICK8 9 /* Joystick8 */
#define NJD_PORT_JOYSTICK9 10 /* Joystick9 */
#define NJD_PORT_JOYSTICK10 11 /* Joystick10 */
#define NJD_PORT_JOYSTICK11 12 /* Joystick11 */
#define NJD_PORT_JOYSTICK12 13 /* Joystick12 */
#define NJD_PORT_JOYSTICK13 14 /* Joystick13 */
#define NJD_PORT_JOYSTICK14 15 /* Joystick14 */
#define NJD_PORT_JOYSTICK15 16 /* Joystick15 */
#define NJD_PORT_JOYSTICK16 17 /* Joystick16 */
/******** USER FUNCTION RETURN VALUE ***************************************/
#define NJD_USER_CONTINUE 0 /* Continuing njUserMain call */
#define NJD_USER_EXIT -1 /* Call njUserExit and exit */
/*
* TYPEDEFS
*/
/******** PERIPHERAL DATA STRUCTURE ****************************************/
typedef struct {
Uint32 id; /* DVICE ID */
Uint32 on; /* Key currently pressed */
Uint32 off; /* Key currently unpressed */
union {
Uint32 push; /* Key just pressed now */
Uint32 press;
};
union {
Uint32 pull; /* Key just unpressed now */
Uint32 release;
};
Sint16 x; /* axis data
-32768`32767)*/Sint16 y; /* axis dataY(-32768`32767)*/
Sint16 z; /* axis dataZ(-32768`32767)*/
Sint16 r; /* axis dataR(-32768`32767)*/
Sint16 u; /* axis dataU(-32768`32767)*/
Sint16 v; /* axis dataV(-32768`32767)*/
Sint8* name; /* DEVICE NAME */
void* extend; /* Extended data */
/* internal use; */
Uint32 old; /* Key previously pressed */
} NJS_PERIPHERAL;
, which is neat, it takes care of the Serial to Differential, the Eeprom, the JVS to Maple conversion on PORTS C and D leaving Ports A and B for dreamcast controllers. etc etc ad nauseum
For example; run a scope on the RS422 port on real USA NAOMI WITH H OR LESS BIOS, or fiddle around in debug mame and fill in the blanks from dreamshell like I did.
In my personal opinion:
The Dreamcast Came First in the form of ARC1, the set 2.1 they used to test the system, and worked from there.
now its very clear to me that you're all very busy with your own ventures to be digging around in the old toybox to help someone pick up the ropes; so I'm on my own and I'm going to just contribute what I find to mame and take off back to my own forum.
Once again I'm sorry for the misdirected trolling and deception; I've heard many stories blown way out of proportion and many valuable people lost to mutual misunderstanding..
If anything I'd like to be Miku Again. On the right foot.
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Sorry brother 
