Todo/Mysteries: Difference between revisions

Revision as of 20:59, 24 December 2012

Rename palette ram bus in NEO-G0 by PC0~PC15 (see schematics page 3).

Make templates for each register.

Memory card stuff (format, banks...)

First 80 bytes of code are switchable through REG_SWPBIOS/REG_SWPROM and switched to the BIOS part on startup ($0~$7F = $C00000~$C0007F)

SP-E init code:

	move.b	d0,$380065
	move.b	d0,$380067

@@ Line 22: / Line 22: @@
 ==Others==
-*Fix banking with NEO-CMC:
+*fix bankswitching: how/when is vram bank info sent to the cartridge?
-<pre>
-      if (banked && state->m_fixed_layer_bank_type == 1)
-      {
-          int garoubank = 0;
-          int k = 0;
-          int y = 0;
-          while (y < 32)
-          {
-              if (state->m_videoram[0x7500 + k] == 0x0200 && (state->m_videoram[0x7580 + k] & 0xff00) == 0xff00)
-              {
-                  garoubank = state->m_videoram[0x7580 + k] & 3;
-                  garouoffsets[y++] = garoubank;
-              }
-              garouoffsets[y++] = garoubank;
-              k += 2;
-          }
-      }
-</pre>
 *neo-mga on mv1a + PALs, neo-sdr and neo-dcr info
 *CDDA playback (needs more research in cd bios)
 *neo cd schematics
 *dump lc98000 version neocd bios
-*fix bankswitching in neo-cmc
 *pro-b0 and pro-c0 pinouts
 *[[How to start]] page
 *[[LC8953]] microcode
-*How does the [[Mahjong controller]] works ? (SNK doc)