Firmware: add test suite
This commit is contained in:
ikari
252
src/tests/smc.c
Normal file
252
src/tests/smc.c
Normal file
@@ -0,0 +1,252 @@
|
||||
/* sd2snes - SD card based universal cartridge for the SNES
|
||||
Copyright (C) 2009-2010 Maximilian Rehkopf <otakon@gmx.net>
|
||||
AVR firmware portion
|
||||
|
||||
Inspired by and based on code from sd2iec, written by Ingo Korb et al.
|
||||
See sdcard.c|h, config.h.
|
||||
|
||||
FAT file system access based on code by ChaN, Jim Brain, Ingo Korb,
|
||||
see ff.c|h.
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; version 2 of the License only.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
smc.c: SMC file related operations
|
||||
*/
|
||||
|
||||
#include "fileops.h"
|
||||
#include "config.h"
|
||||
#include "uart.h"
|
||||
#include "smc.h"
|
||||
#include "string.h"
|
||||
#include "fpga_spi.h"
|
||||
|
||||
snes_romprops_t romprops;
|
||||
|
||||
uint32_t hdr_addr[6] = {0xffb0, 0x101b0, 0x7fb0, 0x81b0, 0x40ffb0, 0x4101b0};
|
||||
uint8_t countAllASCII(uint8_t* data, int size) {
|
||||
uint8_t res = 0;
|
||||
do {
|
||||
size--;
|
||||
if(data[size] >= 0x20 && data[size] <= 0x7e) {
|
||||
res++;
|
||||
}
|
||||
} while (size);
|
||||
return res;
|
||||
}
|
||||
|
||||
uint8_t countAllJISX0201(uint8_t* data, int size) {
|
||||
uint8_t res = 0;
|
||||
do {
|
||||
size--;
|
||||
if((data[size] >= 0x20 && data[size] <= 0x7e)
|
||||
||(data[size] >= 0xa1 && data[size] <= 0xdf)) {
|
||||
res++;
|
||||
}
|
||||
} while (size);
|
||||
return res;
|
||||
}
|
||||
|
||||
uint8_t isFixed(uint8_t* data, int size, uint8_t value) {
|
||||
uint8_t res = 1;
|
||||
do {
|
||||
size--;
|
||||
if(data[size] != value) {
|
||||
res = 0;
|
||||
}
|
||||
} while (size);
|
||||
return res;
|
||||
}
|
||||
|
||||
uint8_t checkChksum(uint16_t cchk, uint16_t chk) {
|
||||
uint32_t sum = cchk + chk;
|
||||
uint8_t res = 0;
|
||||
if(sum==0x0000ffff) {
|
||||
res = 0x10;
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
void smc_id(snes_romprops_t* props) {
|
||||
uint8_t score, maxscore=1, score_idx=2; /* assume LoROM */
|
||||
snes_header_t* header = &(props->header);
|
||||
|
||||
props->has_dspx = 0;
|
||||
props->has_st0010 = 0;
|
||||
props->has_cx4 = 0;
|
||||
props->fpga_features = 0;
|
||||
props->fpga_conf = NULL;
|
||||
for(uint8_t num = 0; num < 6; num++) {
|
||||
if(!file_readblock(header, hdr_addr[num], sizeof(snes_header_t))
|
||||
|| file_res) {
|
||||
score = 0;
|
||||
} else {
|
||||
score = smc_headerscore(header)/(1+(num&1));
|
||||
if((file_handle.fsize & 0x2ff) == 0x200) {
|
||||
if(num&1) {
|
||||
score+=20;
|
||||
} else {
|
||||
score=0;
|
||||
}
|
||||
} else {
|
||||
if(!(num&1)) {
|
||||
score+=20;
|
||||
} else {
|
||||
score=0;
|
||||
}
|
||||
}
|
||||
}
|
||||
//printf("%d: offset = %lX; score = %d\n", num, hdr_addr[num], score); // */
|
||||
if(score>=maxscore) {
|
||||
score_idx=num;
|
||||
maxscore=score;
|
||||
}
|
||||
}
|
||||
|
||||
if(score_idx & 1) {
|
||||
props->offset = 0x200;
|
||||
} else {
|
||||
props->offset = 0;
|
||||
}
|
||||
|
||||
/* restore the chosen one */
|
||||
/*dprintf("winner is %d\n", score_idx); */
|
||||
file_readblock(header, hdr_addr[score_idx], sizeof(snes_header_t));
|
||||
|
||||
if(header->name[0x13] == 0x00 || header->name[0x13] == 0xff) {
|
||||
if(header->name[0x14] == 0x00) {
|
||||
const uint8_t n15 = header->map;
|
||||
if(n15 == 0x00 || n15 == 0x80 || n15 == 0x84 || n15 == 0x9c
|
||||
|| n15 == 0xbc || n15 == 0xfc) {
|
||||
if(header->licensee == 0x33 || header->licensee == 0xff) {
|
||||
props->mapper_id = 0;
|
||||
/*XXX do this properly */
|
||||
props->ramsize_bytes = 0x8000;
|
||||
props->romsize_bytes = 0x100000;
|
||||
props->expramsize_bytes = 0;
|
||||
props->mapper_id = 3; /* BS-X Memory Map */
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
switch(header->map & 0xef) {
|
||||
|
||||
case 0x21: /* HiROM */
|
||||
props->mapper_id = 0;
|
||||
if(header->map == 0x31 && (header->carttype == 0x03 || header->carttype == 0x05)) {
|
||||
props->has_dspx = 1;
|
||||
props->dsp_fw = DSPFW_1B;
|
||||
props->fpga_features |= FEAT_DSPX;
|
||||
}
|
||||
break;
|
||||
|
||||
case 0x20: /* LoROM */
|
||||
props->mapper_id = 1;
|
||||
if (header->map == 0x20 && header->carttype == 0xf3) {
|
||||
props->has_cx4 = 1;
|
||||
props->dsp_fw = CX4FW;
|
||||
props->fpga_conf = FPGA_CX4;
|
||||
props->fpga_features |= FEAT_CX4;
|
||||
}
|
||||
else if ((header->map == 0x20 && header->carttype == 0x03) ||
|
||||
(header->map == 0x30 && header->carttype == 0x05 && header->licensee != 0xb2)) {
|
||||
props->has_dspx = 1;
|
||||
props->fpga_features |= FEAT_DSPX;
|
||||
// Pilotwings uses DSP1 instead of DSP1B
|
||||
if(!memcmp(header->name, "PILOTWINGS", 10)) {
|
||||
props->dsp_fw = DSPFW_1;
|
||||
} else {
|
||||
props->dsp_fw = DSPFW_1B;
|
||||
}
|
||||
} else if (header->map == 0x20 && header->carttype == 0x05) {
|
||||
props->has_dspx = 1;
|
||||
props->dsp_fw = DSPFW_2;
|
||||
props->fpga_features |= FEAT_DSPX;
|
||||
} else if (header->map == 0x30 && header->carttype == 0x05 && header->licensee == 0xb2) {
|
||||
props->has_dspx = 1;
|
||||
props->dsp_fw = DSPFW_3;
|
||||
props->fpga_features |= FEAT_DSPX;
|
||||
} else if (header->map == 0x30 && header->carttype == 0x03) {
|
||||
props->has_dspx = 1;
|
||||
props->dsp_fw = DSPFW_4;
|
||||
props->fpga_features |= FEAT_DSPX;
|
||||
} else if (header->map == 0x30 && header->carttype == 0xf6 && header->romsize >= 0xa) {
|
||||
props->has_dspx = 1;
|
||||
props->has_st0010 = 1;
|
||||
props->dsp_fw = DSPFW_ST0010;
|
||||
props->fpga_features |= FEAT_ST0010;
|
||||
header->ramsize = 2;
|
||||
}
|
||||
break;
|
||||
|
||||
case 0x25: /* ExHiROM */
|
||||
props->mapper_id = 2;
|
||||
break;
|
||||
|
||||
case 0x22: /* ExLoROM */
|
||||
if(file_handle.fsize > 0x400200) {
|
||||
props->mapper_id = 6; /* SO96 */
|
||||
} else {
|
||||
props->mapper_id = 1;
|
||||
}
|
||||
break;
|
||||
|
||||
default: /* invalid/unsupported mapper, use header location */
|
||||
switch(score_idx) {
|
||||
case 0:
|
||||
case 1:
|
||||
props->mapper_id = 0;
|
||||
break;
|
||||
case 2:
|
||||
case 3:
|
||||
if(file_handle.fsize > 0x800200) {
|
||||
props->mapper_id = 6; /* SO96 interleaved */
|
||||
} else if(file_handle.fsize > 0x400200) {
|
||||
props->mapper_id = 1; /* ExLoROM */
|
||||
} else {
|
||||
props->mapper_id = 1; /* LoROM */
|
||||
}
|
||||
break;
|
||||
case 4:
|
||||
case 5:
|
||||
props->mapper_id = 2;
|
||||
break;
|
||||
default:
|
||||
props->mapper_id = 1; // whatever
|
||||
}
|
||||
}
|
||||
if(header->romsize == 0 || header->romsize > 13) {
|
||||
header->romsize = 13;
|
||||
}
|
||||
props->ramsize_bytes = (uint32_t)1024 << header->ramsize;
|
||||
props->romsize_bytes = (uint32_t)1024 << header->romsize;
|
||||
props->expramsize_bytes = (uint32_t)1024 << header->expramsize;
|
||||
/*dprintf("ramsize_bytes: %ld\n", props->ramsize_bytes); */
|
||||
if(props->ramsize_bytes > 32768 || props->ramsize_bytes < 2048) {
|
||||
props->ramsize_bytes = 0;
|
||||
}
|
||||
/*dprintf("ramsize_bytes: %ld\n", props->ramsize_bytes); */
|
||||
}
|
||||
|
||||
uint8_t smc_headerscore(snes_header_t* header) {
|
||||
uint8_t score=0;
|
||||
score += countAllASCII(header->maker, sizeof(header->maker));
|
||||
score += countAllASCII(header->gamecode, sizeof(header->gamecode));
|
||||
score += isFixed(header->fixed_00, sizeof(header->fixed_00), 0x00);
|
||||
score += countAllJISX0201(header->name, sizeof(header->name));
|
||||
score += 3*isFixed(&header->licensee, sizeof(header->licensee), 0x33);
|
||||
score += checkChksum(header->cchk, header->chk);
|
||||
return score;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user