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#include "stdlib.h"
#include "global.h"
#include "dolphin/os/OS.h"
#include <string.h>
#include "dolphin/os/__start.h"
void DBInit();
static void __init_registers(void);
SECTION_INIT void __check_pad3(void) {
if ((*(u16*)0x800030E4 & 0xEEF) == 0xEEF) {
OSResetSystem(0, 0, 0);
}
}
SECTION_INIT ASM void __start(void) {
#ifdef __MWERKS__
// clang-format off
nofralloc
bl __init_registers
bl __init_hardware
li r0, -1
stwu r1, -8(r1)
stw r0, 4(r1)
stw r0, 0(r1)
bl __init_data
li r0, 0
lis r6, 0x8000
addi r6, r6, 0x0044
stw r0, 0(r6)
lis r6, 0x8000
addi r6, r6, 0x00F4
lwz r6, 0(r6)
cmplwi r6, 0
beq lbl_8000319C
lwz r7, 0xc(r6)
b lbl_800031BC
lbl_8000319C:
lis r5, 0x8000
addi r5, r5, 0x0034
lwz r5, 0(r5)
cmplwi r5, 0
beq lbl_800031F8
lis r7, 0x8000
addi r7, r7, 0x30E8
lwz r7, 0(r7)
lbl_800031BC:
li r5, 0
cmplwi r7, 2
beq lbl_800031E8
cmplwi r7, 3
bne lbl_800031F8
li r5, 1
lbl_800031E8:
lis r6, InitMetroTRK@ha
addi r6, r6, InitMetroTRK@l
mtlr r6
blrl
lbl_800031F8:
lis r6, 0x8000
addi r6, r6, 0x00F4
lwz r5, 0(r6)
cmplwi r5, 0
beq+ lbl_80003258
lwz r6, 8(r5)
cmplwi r6, 0
beq+ lbl_80003258
add r6, r5, r6
lwz r14, 0(r6)
cmplwi r14, 0
beq lbl_80003258
addi r15, r6, 4
mtctr r14
lbl_80003230:
addi r6, r6, 4
lwz r7, 0(r6)
add r7, r7, r5
stw r7, 0(r6)
bdnz lbl_80003230
lis r5, 0x8000
addi r5, r5, 0x0034
rlwinm r7, r15, 0, 0, 0x1a
stw r7, 0(r5)
b lbl_80003260
lbl_80003258:
li r14, 0
li r15, 0
lbl_80003260:
bl DBInit
bl OSInit
lis r4, 0x8000
addi r4, r4, 0x30E6
lhz r3, 0(r4)
andi. r5, r3, 0x8000
beq lbl_80003288
andi. r3, r3, 0x7fff
cmplwi r3, 1
bne lbl_8000329C
lbl_80003288:
bl __check_pad3
lbl_8000329C:
bl __init_user
mr r3, r14
mr r4, r15
bl main
b exit
// clang-format on
#endif
}
ASM static void __init_registers(void)
{
#ifdef __MWERKS__
nofralloc
lis r1, _stack_addr@h
ori r1, r1, _stack_addr@l
lis r2, _SDA2_BASE_@h
ori r2, r2, _SDA2_BASE_@l
lis r13, _SDA_BASE_@h
ori r13, r13, _SDA_BASE_@l
blr
#endif
}
inline static void __copy_rom_section(void* dst, const void* src, u32 size)
{
if (size && (dst != src)) {
memcpy(dst, src, size);
__flush_cache(dst, size);
}
}
inline static void __init_bss_section(void* dst, u32 size)
{
if (size) {
memset(dst, 0, size);
}
}
void __init_data(void)
{
__rom_copy_info* dci;
__bss_init_info* bii;
dci = _rom_copy_info;
while (TRUE) {
if (dci->size == 0)
break;
__copy_rom_section(dci->addr, dci->rom, dci->size);
dci++;
}
bii = _bss_init_info;
while (TRUE) {
if (bii->size == 0)
break;
__init_bss_section(bii->addr, bii->size);
bii++;
}
}
ASM void __init_hardware() {
#ifdef __MWERKS__ // clang-format off
nofralloc
mfmsr r0
ori r0,r0,0x2000
mtmsr r0
mflr r31
bl __OSPSInit
bl __OSCacheInit
mtlr r31
blr
#endif // clang-format on
}
ASM void __flush_cache(void* addr, u32 size)
{
#ifdef __MWERKS__
nofralloc
lis r5, 0xFFFFFFF1@h
ori r5, r5, 0xFFFFFFF1@l
and r5, r5, r3
subf r3, r5, r3
add r4, r4, r3
loop:
dcbst 0, r5
sync
icbi 0, r5
addic r5, r5, 8
addic. r4, r4, -8
bge loop
isync
blr
#endif
}
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