mirror of
https://github.com/radareorg/radare2.git
synced 2025-02-13 02:21:34 +00:00
107 lines
2.6 KiB
C
107 lines
2.6 KiB
C
/* radare - LGPL3 - 2015 - maijin */
|
|
|
|
#include <r_bin.h>
|
|
#include "nes/nes_specs.h"
|
|
|
|
static int check(RBinFile *arch);
|
|
static int check_bytes(const ut8 *buf, ut64 length);
|
|
|
|
static void * load_bytes(RBinFile *arch, const ut8 *buf, ut64 sz, ut64 loadaddr, Sdb *sdb){
|
|
check_bytes (buf, sz);
|
|
return R_NOTNULL;
|
|
}
|
|
|
|
static int check(RBinFile *arch) {
|
|
const ut8 *bytes = arch ? r_buf_buffer (arch->buf) : NULL;
|
|
ut64 sz = arch ? r_buf_size (arch->buf): 0;
|
|
return check_bytes (bytes, sz);
|
|
}
|
|
|
|
static int check_bytes(const ut8 *buf, ut64 length) {
|
|
if (!buf || length < 4) return false;
|
|
return (!memcmp (buf, INES_MAGIC, 4));
|
|
}
|
|
|
|
static RBinInfo* info(RBinFile *arch) {
|
|
RBinInfo *ret = NULL;
|
|
ines_hdr ihdr;
|
|
memset (&ihdr, 0, INES_HDR_SIZE);
|
|
int reat = r_buf_read_at (arch->buf, 0, (ut8*)&ihdr, INES_HDR_SIZE);
|
|
if (reat != INES_HDR_SIZE) {
|
|
eprintf ("Truncated Header\n");
|
|
return NULL;
|
|
}
|
|
if (!(ret = R_NEW0 (RBinInfo)))
|
|
return NULL;
|
|
ret->file = strdup (arch->file);
|
|
ret->type = strdup ("ROM");
|
|
ret->machine = strdup ("Nintendo NES");
|
|
ret->os = strdup ("nes");
|
|
ret->arch = strdup ("6502");
|
|
ret->bits = 8;
|
|
ret->has_va = 1;
|
|
return ret;
|
|
}
|
|
|
|
static RList* create_nes_cpu_memory_map(ines_hdr ihdr) {
|
|
RList *ret = NULL;
|
|
RBinSection *ptr = NULL;
|
|
if (!(ret = r_list_new ()))
|
|
return NULL;
|
|
if (!(ptr = R_NEW0 (RBinSection)))
|
|
return ret;
|
|
strcpy (ptr->name, "ROM");
|
|
ptr->paddr = INES_HDR_SIZE;
|
|
ptr->size = ihdr.prg_page_count_16k * PRG_PAGE_SIZE;
|
|
ptr->vaddr = ROM_START_ADDRESS;
|
|
ptr->vsize = ROM_SIZE;
|
|
ptr->srwx = R_BIN_SCN_MAP;
|
|
r_list_append (ret, ptr);
|
|
return ret;
|
|
}
|
|
|
|
static RList* sections(RBinFile *arch) {
|
|
ines_hdr ihdr;
|
|
memset (&ihdr, 0, INES_HDR_SIZE);
|
|
int reat = r_buf_read_at (arch->buf, 0, (ut8*)&ihdr, INES_HDR_SIZE);
|
|
if (reat != INES_HDR_SIZE) {
|
|
eprintf ("Truncated Header\n");
|
|
return NULL;
|
|
}
|
|
RList *ret = create_nes_cpu_memory_map(ihdr);
|
|
return ret;
|
|
}
|
|
|
|
static RList* entries(RBinFile *arch) { //Should be 3 offsets pointed by NMI, RESET, IRQ after mapping && default = 1st CHR
|
|
RList *ret;
|
|
RBinAddr *ptr = NULL;
|
|
if (!(ret = r_list_new ()))
|
|
return NULL;
|
|
if (!(ptr = R_NEW0 (RBinAddr)))
|
|
return ret;
|
|
ptr->paddr = INES_HDR_SIZE;
|
|
ptr->vaddr = ROM_START_ADDRESS;
|
|
r_list_append (ret, ptr);
|
|
return ret;
|
|
}
|
|
|
|
struct r_bin_plugin_t r_bin_plugin_nes = {
|
|
.name = "nes",
|
|
.desc = "NES",
|
|
.license = "LGPL3",
|
|
.load_bytes = &load_bytes,
|
|
.check = &check,
|
|
.check_bytes = &check_bytes,
|
|
.entries = &entries,
|
|
.sections = sections,
|
|
.info = &info,
|
|
};
|
|
|
|
#ifndef CORELIB
|
|
struct r_lib_struct_t radare_plugin = {
|
|
.type = R_LIB_TYPE_BIN,
|
|
.data = &r_bin_plugin_nes,
|
|
.version = R2_VERSION
|
|
};
|
|
#endif
|