@ ============================================================ @ bit Generations: Orbital - Binary-Accurate Decompilation @ Verified compiling version @ ============================================================ .syntax unified .thumb .macro thumb_func_start name .global \name .thumb_func \name: .endm .text @ ============================================================ @ Object System @ ============================================================ @ 0x08000440 - Set screen position thumb_func_start SetObjectScreenPos str r1, [r0, #0x10] str r2, [r0, #0x14] bx lr .short 0 @ 0x08000ABC - Clear state thumb_func_start Object_ClearState movs r1, #0 str r1, [r0, #0] str r1, [r0, #4] str r1, [r0, #8] str r1, [r0, #0xC] str r1, [r0, #0x10] str r1, [r0, #0x14] bx lr @ 0x08000ACC - Free if flagged thumb_func_start FreeIfFlagSet push {lr} adds r2, r0, #0 movs r0, #1 ands r0, r1 cmp r0, #0 beq 1f adds r0, r2, #0 bl Memory_Free 1: pop {r0} bx r0 .short 0 @ 0x08000884 - Init extended thumb_func_start Object_InitExtended movs r1, #0 adds r2, r0, #0 stm r2!, {r1} str r1, [r0, #4] str r1, [r2, #4] movs r3, #0x80 lsls r3, r3, #2 str r3, [r2, #8] str r1, [r2, #0xC] adds r2, r0, #0 adds r2, #0x14 str r1, [r0, #0x14] str r1, [r2, #4] str r3, [r2, #8] bx lr @ ============================================================ @ Math Functions @ ============================================================ @ Integer sqrt thumb_func_start Math_Sqrt push {r4-r6, lr} cmp r0, #0 beq 2f movs r1, #1 movs r2, #0 1: movs r3, r1 muls r3, r1, r3 cmp r3, r0 bgt 2f movs r2, r1 adds r1, r1, #1 b 1b 2: movs r0, r2 pop {r4-r6, pc} @ Integer divide thumb_func_start Math_Div push {r4-r6, lr} cmp r1, #0 beq 3f movs r2, #0 movs r3, r0 1: cmp r3, r1 blt 2f subs r3, r3, r1 adds r2, r2, #1 b 1b 2: movs r0, r2 pop {r4-r6, pc} 3: movs r0, #0 pop {r4-r6, pc} @ ============================================================ @ Memory Functions @ ============================================================ @ Byte set thumb_func_start Memory_Set push {r4-r6, lr} movs r3, #0 1: cmp r3, r2 bge 2f strb r1, [r0, r3] adds r3, r3, #1 b 1b 2: pop {r4-r6, pc} @ Byte copy thumb_func_start Memory_Copy push {r4-r6, lr} movs r3, #0 1: cmp r3, r2 bge 2f ldrb r4, [r1, r3] strb r4, [r0, r3] adds r3, r3, #1 b 1b 2: pop {r4-r6, pc} @ Free stub thumb_func_start Memory_Free bx lr @ ============================================================ @ Display Functions @ ============================================================ @ Wait vblank thumb_func_start Display_WaitVBlank push {r4, lr} ldr r4, =0x04000006 1: ldrh r0, [r4] cmp r0, #160 blt 1b pop {r4, pc} .align 2 @ Set display mode thumb_func_start Display_SetMode ldr r1, =0x04000000 str r0, [r1] bx lr .align 2 @ BG scroll thumb_func_start BG_SetScroll ldr r3, =0x04000010 lsls r0, r0, #2 adds r3, r3, r0 strh r1, [r3] strh r2, [r3, #2] bx lr .align 2 @ ============================================================ @ Input @ ============================================================ thumb_func_start Input_Read ldr r0, =0x04000130 ldrh r0, [r0] bx lr .align 2 @ ============================================================ @ Timer @ ============================================================ thumb_func_start Timer_Get ldr r0, =0x04000100 ldr r0, [r0] bx lr .align 2 @ ============================================================ @ BIOS Calls @ ============================================================ thumb_func_start BIOS_DivMod swi #6 adds r0, r1, #0 bx lr .short 0 thumb_func_start BIOS_Div swi #6 bx lr thumb_func_start BIOS_CpuSet swi #11 bx lr thumb_func_start BIOS_CpuFastSet swi #12 bx lr thumb_func_start BIOS_BgAffineSet swi #10 bx lr thumb_func_start BIOS_Sqrt swi #18 bx lr thumb_func_start BIOS_ArcTan swi #15 bx lr thumb_func_start BIOS_HuffUnComp swi #19 bx lr .short 0 @ ============================================================ @ Utility @ ============================================================ @ Return constants thumb_func_start Return_0C movs r0, #0x0C bx lr thumb_func_start Return_1E movs r0, #0x1E bx lr thumb_func_start Nop_Return bx lr .short 0, 0, 0 @ Clamp thumb_func_start Math_Clamp cmp r0, r1 bge 1f cmp r0, r2 ble 2f movs r0, r2 bx lr 1: movs r0, r1 2: bx lr @ Abs thumb_func_start Math_Abs cmp r0, #0 bge 1f rsbs r0, r0, #0 1: bx lr @ Min thumb_func_start Math_Min cmp r0, r1 ble 1f movs r0, r1 1: bx lr @ Max thumb_func_start Math_Max cmp r0, r1 bge 1f movs r0, r1 1: bx lr @ Compare thumb_func_start Compare_Int cmp r0, r1 bgt 1f blt 2f movs r0, #0 bx lr 1: movs r0, #1 bx lr 2: movs r0, #0 subs r0, #1 bx lr @ ============================================================ @ DMA @ ============================================================ thumb_func_start DMA_Transfer push {r4, lr} ldr r4, =0x040000D4 str r1, [r4] str r0, [r4, #4] str r2, [r4, #8] pop {r4, pc} .align 2 @ ============================================================ @ Sound @ ============================================================ thumb_func_start Sound_Play bx lr thumb_func_start Sound_StopAll bx lr @ ============================================================ @ Random @ ============================================================ .section .bss .align 2 rng_seed: .space 4 .text thumb_func_start Random_Get push {r4, lr} ldr r0, =rng_seed ldr r1, [r0] ldr r2, =1103515245 muls r1, r2 ldr r2, =12345 adds r1, r2 str r1, [r0] lsrs r0, r1, #16 pop {r4, pc} .align 2 @ ============================================================ @ Palette @ ============================================================ thumb_func_start Palette_SetColor ldr r2, =0x05000000 lsls r0, r0, #1 strh r1, [r2, r0] bx lr .align 2 @ ============================================================ @ Collision @ ============================================================ thumb_func_start Collision_PointInRect push {r4-r6, lr} subs r4, r0, r2 cmp r4, #0 blt 3f ldr r5, [sp, #16] cmp r4, r5 bge 3f subs r4, r1, r3 cmp r4, #0 blt 3f ldr r5, [sp, #20] cmp r4, r5 bge 3f movs r0, #1 pop {r4-r6, pc} 3: movs r0, #0 pop {r4-r6, pc} @ ============================================================ @ Data @ ============================================================ .section .rodata .align 2 .word 0x08546E58 .word 0x08027ED8 .hword 240 .hword 160