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#include "../copyright"
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include "snes9x.h"
#include "cheats.h"
#include "memmap.h"
static bool S9xAllHex(const char* code, int32_t len)
{
int32_t i;
for (i = 0; i < len; i++)
if ((code [i] < '0' || code [i] > '9') &&
(code [i] < 'a' || code [i] > 'f') &&
(code [i] < 'A' || code [i] > 'F'))
return false;
return true;
}
const char* S9xProActionReplayToRaw(const char* code, uint32_t* address, uint8_t* byte)
{
uint32_t data = 0;
if (strlen(code) != 8 || !S9xAllHex(code, 8) || sscanf(code, "%x", &data) != 1)
return "Invalid Pro Action Replay code - should be 8 hex digits in length.";
*address = data >> 8;
*byte = (uint8_t) data;
return NULL;
}
const char* S9xGoldFingerToRaw(const char* code, uint32_t* address, bool* sram, uint8_t* num_bytes, uint8_t bytes[3])
{
int32_t i;
char tmp [15];
if (strlen(code) != 14)
return "Invalid Gold Finger code should be 14 hex digits in length.";
strncpy(tmp, code, 5);
tmp [5] = 0;
if (sscanf(tmp, "%x", address) != 1)
return "Invalid Gold Finger code.";
for (i = 0; i < 3; i++)
{
int32_t byte;
strncpy(tmp, code + 5 + i * 2, 2);
tmp [2] = 0;
if (sscanf(tmp, "%x", &byte) != 1)
break;
bytes [i] = (uint8_t) byte;
}
*num_bytes = i;
*sram = code [13] == '1';
return NULL;
}
const char* S9xGameGenieToRaw(const char* code, uint32_t* address, uint8_t* byte)
{
char new_code [12];
static char* real_hex = "0123456789ABCDEF";
static char* genie_hex = "DF4709156BC8A23E";
uint32_t data = 0;
int32_t i;
if (strlen(code) != 9 || code[4] != '-' || !S9xAllHex(code, 4) || !S9xAllHex(code + 5, 4))
return "Invalid Game Genie(tm) code - should be 'xxxx-xxxx'.";
strcpy(new_code, "0x");
strncpy(new_code + 2, code, 4);
strcpy(new_code + 6, code + 5);
for (i = 2; i < 10; i++)
{
int32_t j;
if (islower(new_code [i]))
new_code [i] = toupper(new_code [i]);
for (j = 0; j < 16; j++)
{
if (new_code [i] == genie_hex [j])
{
new_code [i] = real_hex [j];
break;
}
}
if (j == 16)
return "Invalid hex-character in Game Genie(tm) code";
}
sscanf(new_code, "%x", &data);
*byte = (uint8_t)(data >> 24);
*address = ((data & 0x003c00) << 10) +
((data & 0x00003c) << 14) +
((data & 0xf00000) >> 8) +
((data & 0x000003) << 10) +
((data & 0x00c000) >> 6) +
((data & 0x0f0000) >> 12) +
((data & 0x0003c0) >> 6);
return NULL;
}
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