.include "../asm/macros/asm.inc" .include "../asm/macros/function.inc" .include "../constants/gba_constants.inc" .set SIO_ERROR, 0x0040 .set SIO_MULTI_BUSY, 0x0080 .set EWRAM_ORIG, 0x02000000 .set gCode, 0x02010000 .set PROG_ORIG, 0x00008000 .syntax unified .text arm_func_start _start _start: @ 0 b _entry arm_func_end _start .include "asm/berry_fix_header.inc" @ C0 .word 0 .global _GPIOPortData _GPIOPortData: @ C4 .2byte 0 .global _GPIOPortDirection _GPIOPortDirection: @ C6 .2byte 0 .global _GPIOPortReadEnable _GPIOPortReadEnable: @ C8 .2byte 0 @ CA .2byte 0 @ CC .space 0x34 arm_func_start _entry _entry: @ 100 b _send arm_func_end _entry .space 0x1C arm_func_start _recv _recv: @ Waits until link cable is no longer busy. @ Returns nz if an error has occurred @ Otherwise, returns the received short in r1. @ Preserves r0 _120: ldrh r1, [r0, 0x8] @ SIOCNT tst r1, SIO_MULTI_BUSY beq _120 _12c: ldrh r1, [r0, 0x8] @ SIOCNT tst r1, SIO_MULTI_BUSY bne _12c ldrh r1, [r0, 0x8] @ SIOCNT tst r1, SIO_ERROR bxne lr ldrh r1, [r0] @ SIOMULTI0 bx lr arm_func_end _recv arm_func_start _send _send: @ 14c ldr r0, =REG_SIOMULTI0 _150: bl _recv bne _150 mov r2, #0 strh r2, [r0, 0xa] @ SIOMLT_SEND cmp r1, #0 bne _150 mov r2, 0x8000 _16c: mov r1, #0 _170: strh r1, [r0, 0xa] @ SIOMLT_SEND bl _recv bne _150 cmp r1, r2 bne _16c lsr r2, #5 cmp r1, #0 bne _170 ldr r3, =BerryFixMBHeaderGameCode ldrh r2, [r3] strh r2, [r0, 0xa] @ SIOMLT_SEND bl _recv _1a0: bne _1a0 cmp r1, r2 bne _1a0 ldrh r2, [r3, 0x2] strh r2, [r0, 0xa] @ SIOMLT_SEND bl _recv bne _1a0 cmp r1, r2 bne _1a0 mov r1, #0 strh r1, [r0, 0xa] @ SIOMLT_SEND ldr r0, =_data_2f0 ldr r1, =gCode swi 0x11 << 16 ldr lr, =gCode bx lr .pool arm_func_end _send @ 1f0 .align 2, 0 @ don't pad with nop