Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-19 15:11:37 +03:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

psikyo/psikyosh_v.cpp: Add notes for VREG usage (#11231)

Browse Source
This commit is contained in:
cam900 2023-05-16 01:52:32 +09:00 committed by GitHub
parent a411b9fac1
commit 633a479f77
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/mame/psikyo/psikyosh_v.cpp
View File

@ -32,14 +32,14 @@ Video Registers: at 0x305ffe0 for ps3 or 0x405ffe0 for ps5/ps5v2:
0x04 -- ffffffff above continued.
0x08 -- ffff0000 priority values for sprites, 4-bits per value
0000ff00 unknown. always 20. number of addressable banks? boards are populated with 20.
000000f0 unknown. s1945ii/s1945iii/gunbird2/gnbarich/tgm2 sets to c. soldivid/daraku is 0. another bank select?
000000f0 unknown. s1945ii/s1945iii/gunbird2/gnbarich/tgm2/dragnblz/sbomber/mjgtaste sets to c. soldivid/daraku is 0. another bank select?
0000000f is priority for per-line post-blending
0x0c -- 3f3f3f3f unknown. A table of 4 6-bit values. usually 0f102038. tgm2 is 0a172838.
c0c00000 unknown. unused?
0000c000 is flipscreen (currently ignored). presumably flipy<<1|flipx.
000000c0 is screen size select. 0 is 224 lines, c is 240 (see tgm2, not confirmed).
0x10 -- ffff0000 is always 00aa
0000f000 number of banks for sprites (not confirmed). mjgtaste/tgm2/sbomberb/s1945ii is 3, gunbird2/s1945iii is 2, soldivid/daraku is b.
0000f000 number of banks for sprites (not confirmed). mjgtaste/tgm2/sbomber/s1945ii/dragnblz/gnbarich is 3, gunbird2/s1945iii is 2, soldivid/daraku is b.
00000fff Controls gfx data bank available to be read by SH-2 for verification.
0x14 -- ffffffff always 83ff000e
0x18 -- ffffffff bank for tilemaps. As follows for the different tilemaps: 11223344. Bit 0x80 indicates use of line effects and the bank should be used to look up the tile-bank per line.