DnM Full Debugger Notes

* All controller input, unless otherwise noted, is on controller 2.

  Input the Zelda debug code on controller 2 to activate debugger.  The letter "D" will appear in the upper-right corner of the screen and input in the lower-right.
L+R+Z
+ up
C down
C up
+ down
+ left
C left
C right
+ right
A+B+Start
  Hold Recenter on controller 1 when entering code (at least at the final input) to activate all Famicom features.  This sets the 0x10 flag in osAppNMIBuffer+3F.


  Color of the letter "D" indicates the current mode:
yellow	1	debugger lvl1, Resetti enabled
pink	2|1	debugger lvl1
green	8|1	debugger lvl2, Resetti enabled
gray	8|2|1	debugger lvl2

  osAppNMIBuffer+3F stores flags for the debugger:
01	debugger active/disabled
02	when True, prevents Resetti
04	on reset, sets disable Resetti flag and clears itself
08	extended debugger enabled
10	enables all Famicom emulator special features

.: Main Display :.
  Left of "D", two error codes will always be displayed when relevant.

*) Bad Town Data
  "X" is displayed if towndata[0xF8AC] is zero.

*) FLASH Error Codes
  If not displayed, no error is present.
  "N"  not found or no good
       A failure occurred during initialization or it's an unrecognized chip ID.
  "A"  allocation error
       Failed to allocate a 0xF980 byte temporary buffer.
  "W"  write error
  "R"  read error
  "C"  checksum error
  "O"  other
       Typically due to a mismatch b/w master and its copy.
       Naturally occurs with uninitialized/erased saves since the copy isn't valid yet.


.: Extended Debugger (R/W) :.
  Available when GUID version = 0x23 ("NAFJ#")
  Sets flag 8 in osAppNMIBuffer+3F.

*) Create Famicom
  Press + down to display the Famicom menu.  Press start to advance the value, from 0 to 7.
  When in your home, press Z place it in your home.
0	Clu Clu Land
1	Balloon Fight
2	Donkey Kong
3	Donkey Kong Jr. Math
4	Pinball
5	Tennis
6	Golf
7	FDS; plays games from Controller Pak 1 or 2

*) Memory View/Edit
  Hold the given button while pressing the other to display the menu.
  While holding the button, press the other again to display additional pages.  There are 96 signed 16bit values (hw) in each list (0xC0 per block).
  When released, use + up/down to select an address.  Press + left/right to change values; hold C down to change in faster increments.
  To clear from the screen, input the button sequence for any of the menus below.
HOLD	PRESS	address (J)	address (iQue)	displayed name
L	R	801DFE24	801F0144	Y(SBREG)
L	+ left	801DFEE4	801F0204	D(DREG)
L	+ right	801DFFA4	801F02C4	U(UREG)
L	+ up	801E0064	801F0384	I(IREG)
L	+ down	801E02A4	801F05C4	N(NS1)
L	A	801DFBE4	801EFF04	P(PREG)
L	B	801E0124	801F0444	Z(ZREG)
L	Z	801E01E4	801F0504	C(CRV)
L	Start	801E0A24	801F0D44	G(GREG)
L	C left	801DFA64	801EFD84	S(SREG)
L	C right	801DFD64	801F0084	M(MREG)
L	C up	801DF9A4	801EFCC4	 (REG)
L	C down	801DFB24	801EFE44	O(OREG)
R	L	801E05A4	801F08C4	s(DEMOREG)
R	+ left	801E07E4	801F0B04	A(AREG)
R	+ right	801E0AE4	801F0E04	m(mREG)
R	+ up	801E0BA4	801F0EC4	n(nREG)
R	+ down	--------	--------	*pause execution*
R	A	801E0364	801F0684	K(SND)
R	B	801E0424	801F0744	X(XREG)
R	Z	801E04E4	801F0804	C(CRV2)
R	Start	801E0964	801F0C84	H(HREG)
R	C left	801E08A4	801F0BC4	V(VREG)
R	C right	801E0724	801F0A44	W(WREG)
R	C up	801E0664	801F0984	i(TREG)
R	C down	801DFCA4	801EFFC4	Q(QREG)
Start	L	801E10E4	801F1404	*(NIIREG)
Start	R	801E0C64	801F0F84	B(BREG)
Start	+ left	801E14A4	801F17C4	*(TAKREG)
Start	+ right	801E13E4	801F1704	*(SAKREG)
Start	+ up	801E1324	801F1644	*(CAMREG)
Start	+ down	801E1564	801F1884	*(PL2REG)
Start	A	801E0D24	801F1044	d(DORO)
Start	B	801E0DE4	801F1104	k(kREG)
Start	Z	801E11A4	801F14C4	*(GENREG)
Start	C left	801E0F64	801F1284	*(PLAYERREG)
Start	C right	801E0EA4	801F11C4	b(BAK)
Start	C up	801E1264	801F1584	*(MYKREG)
Start	C down	801E1024	801F1344	*(OTUREG)

*) Clock Rate Adjust
  * Note: only use this feature if a clock is on the board!  Does not safely fall back to default buffer!
  Hold R to change the rate time advances.  Settings are roughly an hour a minute, an hour every ten seconds, then restore clock using RTC.
  When active, the framecount will be displayed on the line just below "D".