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authorcamthesaxman <cameronghall@cox.net>2017-11-25 18:07:24 -0600
committercamthesaxman <cameronghall@cox.net>2017-11-25 18:07:24 -0600
commit37418d05c404aec70745e238796c11b464da33ef (patch)
treeda32e04d100701b005c8bdb230da6e53ae003198 /include/gba
parentc9a21f43bd074e532c745560b1d7d412f6ea8456 (diff)
label and decompile more of field_weather_2
Diffstat (limited to 'include/gba')
-rw-r--r--include/gba/io_reg.h23
1 files changed, 22 insertions, 1 deletions
diff --git a/include/gba/io_reg.h b/include/gba/io_reg.h
index d483d4ddc..6dbe5e8ed 100644
--- a/include/gba/io_reg.h
+++ b/include/gba/io_reg.h
@@ -539,7 +539,28 @@
#define BGCNT_AFF1024x1024 0xC000
// BLDCNT
-
+// Bits 0-5 select layers for the 1st target
+#define BLDCNT_TGT1_BG0 (1 << 0)
+#define BLDCNT_TGT1_BG1 (1 << 1)
+#define BLDCNT_TGT1_BG2 (1 << 2)
+#define BLDCNT_TGT1_BG3 (1 << 3)
+#define BLDCNT_TGT1_OBJ (1 << 4)
+#define BLDCNT_TGT1_BD (1 << 5)
+// Bits 6-7 select the special effect
+#define BLDCNT_EFFECT_NONE (0 << 6) // no special effect
+#define BLDCNT_EFFECT_BLEND (1 << 6) // 1st+2nd targets mixed (controlled by BLDALPHA)
+#define BLDCNT_EFFECT_LIGHTEN (2 << 6) // 1st target becomes whiter (controlled by BLDY)
+#define BLDCNT_EFFECT_DARKEN (3 << 6) // 1st target becomes blacker (controlled by BLDY)
+// Bits 8-13 select layers for the 2nd target
+#define BLDCNT_TGT2_BG0 (1 << 8)
+#define BLDCNT_TGT2_BG1 (1 << 9)
+#define BLDCNT_TGT2_BG2 (1 << 10)
+#define BLDCNT_TGT2_BG3 (1 << 11)
+#define BLDCNT_TGT2_OBJ (1 << 12)
+#define BLDCNT_TGT2_BD (1 << 13)
+
+// BLDALPHA
+#define BLDALPHA_BLEND(target1, target2) (((target2) << 8) | (target1))
// SOUNDCNT_H
#define SOUND_CGB_MIX_QUARTER 0x0000