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author angelosa <salese_corp_ltd@email.it>2015-09-21 02:27:27 +0200
committer angelosa <salese_corp_ltd@email.it>2015-09-21 02:27:27 +0200
commitb3403a54d565f4ccf65298c2e07de113b454102d (patch)
tree49455982874193f61e995a51c712b9c9b9215549 /src/mame/drivers/nexus3d.c
parent2955e94f093c6db1279d10d520145360258be049 (diff)
Misc. notes
Diffstat (limited to 'src/mame/drivers/nexus3d.c')
-rw-r--r--src/mame/drivers/nexus3d.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mame/drivers/nexus3d.c b/src/mame/drivers/nexus3d.c
index fa9997c7645..8a54416f677 100644
--- a/src/mame/drivers/nexus3d.c
+++ b/src/mame/drivers/nexus3d.c
@@ -89,7 +89,9 @@ static ADDRESS_MAP_START( nexus3d_map, AS_PROGRAM, 32, nexus3d_state )
AM_RANGE(0x9C000018, 0x9C00001b) AM_DEVWRITE8("flash", serflash_device, n3d_flash_addr_w, 0xffffffff)
// lots of accesses in this range
-// AM_RANGE(0xC0000F44, 0xC0000F47) AM_READWRITE(nexus3d_unk2_r, nexus3d_unk2_w ) // often
+ // 0xc00018xx seems CRTC related
+ // 0xc000091x loads a "gfx charset"?
+// AM_RANGE(0xC0000F44, 0xC0000F47) AM_READWRITE(nexus3d_unk2_r, nexus3d_unk2_w ) // often, status for something.
// AM_RANGE(0xC0000F4C, 0xC0000F4f) AM_READWRITE(nexus3d_unk3_r, nexus3d_unk3_w ) // often
AM_RANGE(0xE0000014, 0xE0000017) AM_READ(nexus3d_unk_r ) // sits waiting for this