mirror of
https://github.com/RKX1209/nsemu.git
synced 2024-05-23 06:27:50 -04:00
73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
/* nsemu - LGPL - Copyright 2017 rkx1209<rkx1209dev@gmail.com> */
|
|
|
|
#include "Nsemu.hpp"
|
|
#include <lz4.h>
|
|
|
|
NintendoObject::NintendoObject(string path) {
|
|
fp.open (path.c_str (), ios::in | ios::binary);
|
|
fp.seekg (0, ios_base::end);
|
|
length = (uint32_t) fp.tellg ();
|
|
fp.seekg (0);
|
|
}
|
|
|
|
NintendoObject::~NintendoObject() {
|
|
fp.close ();
|
|
}
|
|
|
|
char *decompress(ifstream &fp, uint32_t offset, uint32_t csize, uint32_t usize) {
|
|
fp.seekg (offset);
|
|
char *buf = new char[csize];
|
|
char *obuf = new char[usize];
|
|
fp.read (buf, csize);
|
|
assert (LZ4_decompress_safe (buf, obuf, csize, usize) == usize);
|
|
delete[] buf;
|
|
return obuf;
|
|
}
|
|
|
|
int Nso::load(Nsemu *nsemu) {
|
|
NsoHeader hdr;
|
|
fp.read ((char *) &hdr, sizeof(NsoHeader));
|
|
if (hdr.magic != byte_swap32_str ("NSO0")) {
|
|
return 0;
|
|
}
|
|
uint32_t size = hdr.dataLoc + hdr.dataSize + hdr.bssSize;
|
|
if (size & 0xfff) {
|
|
size = (size & ~0xfff) + 0x1000;
|
|
}
|
|
uint64_t base = 0;
|
|
char *text = decompress (fp, hdr.textOff, hdr.rdataOff - hdr.textOff, hdr.textSize);
|
|
if (!Memory::CopytoEmu (nsemu, (void *) text, base + hdr.textLoc, hdr.textSize)) {
|
|
delete[] text;
|
|
ns_abort ("Failed to copy to .text\n");
|
|
}
|
|
/* --- For test --- */
|
|
uint8_t *txt_dump = new uint8_t[hdr.textSize];
|
|
Memory::CopyfromEmu (nsemu, (void *) txt_dump, base + hdr.textLoc, hdr.textSize);
|
|
bindump ((uint8_t*)text, 105);
|
|
bindump (txt_dump, 105);
|
|
/* ---------------- */
|
|
delete[] text;
|
|
ns_print(".text[0x%x] size = 0x%x\n", hdr.textOff, hdr.textSize);
|
|
ns_print(".rdata[0x%x] size = 0x%x\n", hdr.rdataOff, hdr.rdataSize);
|
|
ns_print(".data[0x%x] size = 0x%x\n", hdr.dataOff, hdr.dataSize);
|
|
char *rdata = decompress (fp, hdr.rdataOff, hdr.dataOff - hdr.rdataOff, hdr.rdataSize);
|
|
if (!Memory::CopytoEmu (nsemu, (void *) rdata, base + hdr.rdataLoc, hdr.rdataSize)) {
|
|
delete[] rdata;
|
|
ns_abort ("Failed to copy to .rdata\n");
|
|
}
|
|
delete[] rdata;
|
|
|
|
char *data = decompress (fp, hdr.dataOff, length - hdr.dataOff, hdr.dataSize);
|
|
if (!Memory::CopytoEmu (nsemu, (void *) data, base + hdr.dataLoc, hdr.dataSize)) {
|
|
delete[] data;
|
|
ns_abort ("Failed to copy to .data\n");
|
|
}
|
|
delete[] data;
|
|
|
|
return size;
|
|
}
|
|
|
|
int Nro::load(Nsemu *nsemu) {
|
|
return 0;
|
|
}
|