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-rw-r--r--constants/gba_constants.s33
1 files changed, 33 insertions, 0 deletions
diff --git a/constants/gba_constants.s b/constants/gba_constants.s
new file mode 100644
index 000000000..a4f3e3291
--- /dev/null
+++ b/constants/gba_constants.s
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+ .set PSR_USR_MODE, 0x00000010
+ .set PSR_FIQ_MODE, 0x00000011
+ .set PSR_IRQ_MODE, 0x00000012
+ .set PSR_SVC_MODE, 0x00000013
+ .set PSR_ABT_MODE, 0x00000017
+ .set PSR_UND_MODE, 0x0000001b
+ .set PSR_SYS_MODE, 0x0000001f
+ .set PSR_MODE_MASK, 0x0000001f
+ .set PSR_T_BIT, 0x00000020
+ .set PSR_F_BIT, 0x00000040
+ .set PSR_I_BIT, 0x00000080
+
+ .set EWRAM_START, 0x02000000
+ .set EWRAM_END, EWRAM_START + 0x40000
+ .set IWRAM_START, 0x03000000
+ .set IWRAM_END, IWRAM_START + 0x8000
+
+ .set INTR_VECTOR, IWRAM_END - 0x4
+
+ .set INTR_FLAG_VBLANK, 1 << 0
+ .set INTR_FLAG_HBLANK, 1 << 1
+ .set INTR_FLAG_VCOUNT, 1 << 2
+ .set INTR_FLAG_TIMER0, 1 << 3
+ .set INTR_FLAG_TIMER1, 1 << 4
+ .set INTR_FLAG_TIMER2, 1 << 5
+ .set INTR_FLAG_TIMER3, 1 << 6
+ .set INTR_FLAG_SERIAL, 1 << 7
+ .set INTR_FLAG_DMA0, 1 << 8
+ .set INTR_FLAG_DMA1, 1 << 9
+ .set INTR_FLAG_DMA2, 1 << 10
+ .set INTR_FLAG_DMA3, 1 << 11
+ .set INTR_FLAG_KEYPAD, 1 << 12
+ .set INTR_FLAG_GAMEPAK, 1 << 13