all repos — mgba @ e251a69a29e8059733ae788bd4be5852b76cdac1

mGBA Game Boy Advance Emulator

GBA: Fix video timing when skipping BIOS (fixes #1318)
Vicki Pfau vi@endrift.com
Sat, 23 Feb 2019 02:08:30 -0800
commit

e251a69a29e8059733ae788bd4be5852b76cdac1

parent

232e972be22d241bc16b3e3fabe7b970bc321d18

2 files changed, 3 insertions(+), 1 deletions(-)

jump to
M CHANGES → CHANGES 
@@ -18,6 +18,7 @@ - Qt: Fix window icon on X11
  - GB, GBA Serialize: Fix loading two states in a row
  - GBA Video: Fix enabling layers in non-tile modes (fixes mgba.io/i/1317)
  - Qt: Fix quick load recent accidentally saving (fixes mgba.io/i/1309)
+ - GBA: Fix video timing when skipping BIOS (fixes mgba.io/i/1318)
 Misc:
  - GBA Video: Improve sprite cycle counting (fixes mgba.io/i/1274)
M src/gba/gba.c → src/gba/gba.c 
@@ -232,7 +232,8 @@ cpu->gprs[ARM_PC] = BASE_CART0;
 		} else {
 			cpu->gprs[ARM_PC] = BASE_WORKING_RAM;
 		}
-		gba->memory.io[REG_VCOUNT >> 1] = 0x7E;
+		gba->video.vcount = 0x7D;
+		gba->memory.io[REG_VCOUNT >> 1] = 0x7D;
 		gba->memory.io[REG_POSTFLG >> 1] = 1;
 		int currentCycles = 0;
 		ARM_WRITE_PC;