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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
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