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Merge pull request #5586 from leiradel/master

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Moved all cheevos_var_t related stuff to their own files
This commit is contained in:
Twinaphex 2017-10-22 18:26:09 +02:00 committed by GitHub
commit 9279c33711
7 changed files with 544 additions and 411 deletions
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1
Makefile.common
View File

@ -1474,6 +1474,7 @@ ifeq ($(HAVE_NETWORKING), 1)
ifeq ($(HAVE_CHEEVOS), 1)
DEFINES += -DHAVE_CHEEVOS
OBJ += cheevos/cheevos.o \
cheevos/var.o \
$(LIBRETRO_COMM_DIR)/utils/md5.o
endif

414
cheevos/cheevos.c
View File

@ -36,6 +36,7 @@
#endif
#include "cheevos.h"
#include "var.h"
#include "../command.h"
#include "../dynamic.h"
@ -62,9 +63,6 @@
/* Define this macro to remove HTTP timeouts. */
#undef CHEEVOS_NO_TIMEOUT
/* Define this macro to get extra-verbose log for cheevos. */
#undef CHEEVOS_VERBOSE
/* Define this macro to load a JSON file from disk instead of downloading
* from retroachievements.org. */
#undef CHEEVOS_JSON_OVERRIDE
@ -100,60 +98,6 @@
#define CHEEVOS_EIGHT_MB ( 8 * 1024 * 1024)
#define CHEEVOS_SIZE_LIMIT (64 * 1024 * 1024)
enum
{
/* Don't change those, the values match the console IDs
* at retroachievements.org. */
CHEEVOS_CONSOLE_MEGA_DRIVE = 1,
CHEEVOS_CONSOLE_NINTENDO_64 = 2,
CHEEVOS_CONSOLE_SUPER_NINTENDO = 3,
CHEEVOS_CONSOLE_GAMEBOY = 4,
CHEEVOS_CONSOLE_GAMEBOY_ADVANCE = 5,
CHEEVOS_CONSOLE_GAMEBOY_COLOR = 6,
CHEEVOS_CONSOLE_NINTENDO = 7,
CHEEVOS_CONSOLE_PC_ENGINE = 8,
CHEEVOS_CONSOLE_SEGA_CD = 9,
CHEEVOS_CONSOLE_SEGA_32X = 10,
CHEEVOS_CONSOLE_MASTER_SYSTEM = 11
};
enum
{
CHEEVOS_VAR_SIZE_BIT_0 = 0,
CHEEVOS_VAR_SIZE_BIT_1,
CHEEVOS_VAR_SIZE_BIT_2,
CHEEVOS_VAR_SIZE_BIT_3,
CHEEVOS_VAR_SIZE_BIT_4,
CHEEVOS_VAR_SIZE_BIT_5,
CHEEVOS_VAR_SIZE_BIT_6,
CHEEVOS_VAR_SIZE_BIT_7,
CHEEVOS_VAR_SIZE_NIBBLE_LOWER,
CHEEVOS_VAR_SIZE_NIBBLE_UPPER,
/* Byte, */
CHEEVOS_VAR_SIZE_EIGHT_BITS, /* =Byte, */
CHEEVOS_VAR_SIZE_SIXTEEN_BITS,
CHEEVOS_VAR_SIZE_THIRTYTWO_BITS,
CHEEVOS_VAR_SIZE_LAST
}; /* cheevos_var_t.size */
enum
{
/* compare to the value of a live address in RAM */
CHEEVOS_VAR_TYPE_ADDRESS = 0,
/* a number. assume 32 bit */
CHEEVOS_VAR_TYPE_VALUE_COMP,
/* the value last known at this address. */
CHEEVOS_VAR_TYPE_DELTA_MEM,
/* a custom user-set variable */
CHEEVOS_VAR_TYPE_DYNAMIC_VAR,
CHEEVOS_VAR_TYPE_LAST
}; /* cheevos_var_t.type */
enum
{
CHEEVOS_COND_OP_EQUALS = 0,
@ -918,44 +862,6 @@ static int cheevos_count_cheevos(const char *json,
Parse the MemAddr field.
*****************************************************************************/
static unsigned cheevos_prefix_to_comp_size(char prefix)
{
/* Careful not to use ABCDEF here, this denotes part of an actual variable! */
switch( toupper( (unsigned char)prefix ) )
{
case 'M':
return CHEEVOS_VAR_SIZE_BIT_0;
case 'N':
return CHEEVOS_VAR_SIZE_BIT_1;
case 'O':
return CHEEVOS_VAR_SIZE_BIT_2;
case 'P':
return CHEEVOS_VAR_SIZE_BIT_3;
case 'Q':
return CHEEVOS_VAR_SIZE_BIT_4;
case 'R':
return CHEEVOS_VAR_SIZE_BIT_5;
case 'S':
return CHEEVOS_VAR_SIZE_BIT_6;
case 'T':
return CHEEVOS_VAR_SIZE_BIT_7;
case 'L':
return CHEEVOS_VAR_SIZE_NIBBLE_LOWER;
case 'U':
return CHEEVOS_VAR_SIZE_NIBBLE_UPPER;
case 'H':
return CHEEVOS_VAR_SIZE_EIGHT_BITS;
case 'X':
return CHEEVOS_VAR_SIZE_THIRTYTWO_BITS;
default:
case ' ':
break;
}
return CHEEVOS_VAR_SIZE_SIXTEEN_BITS;
}
static unsigned cheevos_read_hits(const char **memaddr)
{
char *end = NULL;
@ -1022,203 +928,6 @@ static unsigned cheevos_parse_operator(const char **memaddr)
return op;
}
static size_t cheevos_reduce(size_t addr, size_t mask)
{
while (mask)
{
size_t tmp = (mask - 1) & ~mask;
addr = (addr & tmp) | ((addr >> 1) & ~tmp);
mask = (mask & (mask - 1)) >> 1;
}
return addr;
}
static size_t cheevos_highest_bit(size_t n)
{
n |= n >> 1;
n |= n >> 2;
n |= n >> 4;
n |= n >> 8;
n |= n >> 16;
return n ^ (n >> 1);
}
void cheevos_parse_guest_addr(cheevos_var_t *var, unsigned value)
{
rarch_system_info_t *system = runloop_get_system_info();
var->bank_id = -1;
var->value = value;
switch (cheevos_locals.console_id)
{
case CHEEVOS_CONSOLE_NINTENDO:
if (var->value >= 0x0800 && var->value < 0x2000)
{
#ifdef CHEEVOS_VERBOSE
RARCH_LOG("[CHEEVOS]: NES memory address in mirrorred RAM %X, adjusted to %X\n", var->value, var->value & 0x07ff);
#endif
var->value &= 0x07ff;
}
break;
case CHEEVOS_CONSOLE_GAMEBOY_COLOR:
if (var->value >= 0xe000 && var->value <= 0xfdff)
{
#ifdef CHEEVOS_VERBOSE
RARCH_LOG("[CHEEVOS]: GBC memory address in echo RAM %X, adjusted to %X\n", var->value, var->value - 0x2000);
#endif
var->value -= 0x2000;
}
break;
}
if (system->mmaps.num_descriptors != 0)
{
const rarch_memory_descriptor_t *desc = NULL;
const rarch_memory_descriptor_t *end = NULL;
switch (cheevos_locals.console_id)
{
/* Patch the address to correctly map it to the mmaps */
case CHEEVOS_CONSOLE_GAMEBOY_ADVANCE:
if (var->value < 0x8000) /* Internal RAM */
{
#ifdef CHEEVOS_VERBOSE
RARCH_LOG("[CHEEVOS]: GBA memory address %X adjusted to %X\n", var->value, var->value + 0x3000000);
#endif
var->value += 0x3000000;
}
else /* Work RAM */
{
#ifdef CHEEVOS_VERBOSE
RARCH_LOG("[CHEEVOS]: GBA memory address %X adjusted to %X\n", var->value, var->value + 0x2000000 - 0x8000);
#endif
var->value += 0x2000000 - 0x8000;
}
break;
case CHEEVOS_CONSOLE_PC_ENGINE:
#ifdef CHEEVOS_VERBOSE
RARCH_LOG("[CHEEVOS]: PCE memory address %X adjusted to %X\n", var->value, var->value + 0x1f0000);
#endif
var->value += 0x1f0000;
break;
case CHEEVOS_CONSOLE_SUPER_NINTENDO:
if (var->value < 0x020000) /* Work RAM */
{
#ifdef CHEEVOS_VERBOSE
RARCH_LOG("[CHEEVOS]: SNES memory address %X adjusted to %X\n", var->value, var->value + 0x7e0000);
#endif
var->value += 0x7e0000;
}
else /* Save RAM */
{
#ifdef CHEEVOS_VERBOSE
RARCH_LOG("[CHEEVOS]: SNES memory address %X adjusted to %X\n", var->value, var->value + 0x006000 - 0x020000);
#endif
var->value += 0x006000 - 0x020000;
}
break;
default:
break;
}
desc = system->mmaps.descriptors;
end = desc + system->mmaps.num_descriptors;
for (; desc < end; desc++)
{
if (((desc->core.start ^ var->value) & desc->core.select) == 0)
{
unsigned addr = var->value;
var->bank_id = (int)(desc - system->mmaps.descriptors);
var->value = (unsigned)cheevos_reduce(
(var->value - desc->core.start) & desc->disconnect_mask,
desc->core.disconnect);
if (var->value >= desc->core.len)
var->value -= cheevos_highest_bit(var->value);
var->value += desc->core.offset;
#ifdef CHEEVOS_VERBOSE
RARCH_LOG("[CHEEVOS]: Address %X set to descriptor %d at offset %X\n", addr, var->bank_id + 1, var->value);
#endif
break;
}
}
}
else
{
unsigned i;
for (i = 0; i < ARRAY_SIZE(cheevos_locals.meminfo); i++)
{
if (var->value < cheevos_locals.meminfo[i].size)
{
var->bank_id = i;
break;
}
/* HACK subtract the correct amount of bytes to reach the save RAM */
if (i == 0 && cheevos_locals.console_id == CHEEVOS_CONSOLE_NINTENDO)
var->value -= 0x6000;
else
var->value -= cheevos_locals.meminfo[i].size;
}
}
}
static void cheevos_parse_var(cheevos_var_t *var, const char **memaddr)
{
char *end = NULL;
const char *str = *memaddr;
unsigned base = 16;
if (toupper((unsigned char)*str) == 'D' && str[1] == '0' && toupper((unsigned char)str[2]) == 'X')
{
/* d0x + 4 hex digits */
str += 3;
var->type = CHEEVOS_VAR_TYPE_DELTA_MEM;
}
else if (*str == '0' && toupper((unsigned char)str[1]) == 'X')
{
/* 0x + 4 hex digits */
str += 2;
var->type = CHEEVOS_VAR_TYPE_ADDRESS;
}
else
{
var->type = CHEEVOS_VAR_TYPE_VALUE_COMP;
if (toupper((unsigned char)*str) == 'H')
str++;
else
{
if (toupper((unsigned char)*str) == 'V')
str++;
base = 10;
}
}
if (var->type != CHEEVOS_VAR_TYPE_VALUE_COMP)
{
var->size = cheevos_prefix_to_comp_size(*str);
if (var->size != CHEEVOS_VAR_SIZE_SIXTEEN_BITS)
str++;
}
var->value = (unsigned)strtol(str, &end, base);
*memaddr = end;
}
static void cheevos_parse_cond(cheevos_cond_t *cond, const char **memaddr)
{
const char* str = *memaddr;
@ -1253,9 +962,9 @@ static void cheevos_parse_cond(cheevos_cond_t *cond, const char **memaddr)
str += skip;
}
cheevos_parse_var(&cond->source, &str);
cheevos_var_parse(&cond->source, &str);
cond->op = cheevos_parse_operator(&str);
cheevos_parse_var(&cond->target, &str);
cheevos_var_parse(&cond->target, &str);
cond->curr_hits = 0;
cond->req_hits = cheevos_read_hits(&str);
@ -1450,7 +1159,7 @@ static int cheevos_parse_expression(cheevos_expr_t *expr, const char* mem)
for (i = 0, aux = mem; i < expr->count; i++)
{
cheevos_parse_var(&expr->terms[i].var, &aux);
cheevos_var_parse(&expr->terms[i].var, &aux);
if (*aux != '*')
{
@ -1816,104 +1525,10 @@ error:
Test all the achievements (call once per frame).
*****************************************************************************/
uint8_t *cheevos_get_memory(const cheevos_var_t *var)
{
uint8_t *memory = NULL;
if (var->bank_id >= 0)
{
rarch_system_info_t *system = runloop_get_system_info();
if (system->mmaps.num_descriptors != 0)
memory = (uint8_t *)system->mmaps.descriptors[var->bank_id].core.ptr;
else
memory = (uint8_t *)cheevos_locals.meminfo[var->bank_id].data;
if (memory)
memory += var->value;
}
return memory;
}
static unsigned cheevos_get_var_value(cheevos_var_t *var)
{
if (var->type == CHEEVOS_VAR_TYPE_VALUE_COMP)
return var->value;
if ( var->type == CHEEVOS_VAR_TYPE_ADDRESS
|| var->type == CHEEVOS_VAR_TYPE_DELTA_MEM)
{
const uint8_t *memory = cheevos_get_memory(var);
unsigned live_val = 0;
if (memory)
{
live_val = memory[0];
switch (var->size)
{
case CHEEVOS_VAR_SIZE_BIT_0:
live_val &= 1;
break;
case CHEEVOS_VAR_SIZE_BIT_1:
live_val = (live_val >> 1) & 1;
break;
case CHEEVOS_VAR_SIZE_BIT_2:
live_val = (live_val >> 2) & 1;
break;
case CHEEVOS_VAR_SIZE_BIT_3:
live_val = (live_val >> 3) & 1;
break;
case CHEEVOS_VAR_SIZE_BIT_4:
live_val = (live_val >> 4) & 1;
break;
case CHEEVOS_VAR_SIZE_BIT_5:
live_val = (live_val >> 5) & 1;
break;
case CHEEVOS_VAR_SIZE_BIT_6:
live_val = (live_val >> 6) & 1;
break;
case CHEEVOS_VAR_SIZE_BIT_7:
live_val = (live_val >> 7) & 1;
break;
case CHEEVOS_VAR_SIZE_NIBBLE_LOWER:
live_val &= 0x0f;
break;
case CHEEVOS_VAR_SIZE_NIBBLE_UPPER:
live_val = (live_val >> 4) & 0x0f;
break;
case CHEEVOS_VAR_SIZE_EIGHT_BITS:
break;
case CHEEVOS_VAR_SIZE_SIXTEEN_BITS:
live_val |= memory[1] << 8;
break;
case CHEEVOS_VAR_SIZE_THIRTYTWO_BITS:
live_val |= memory[1] << 8;
live_val |= memory[2] << 16;
live_val |= memory[3] << 24;
break;
}
}
if (var->type == CHEEVOS_VAR_TYPE_DELTA_MEM)
{
unsigned previous = var->previous;
var->previous = live_val;
return previous;
}
return live_val;
}
/* We shouldn't get here... */
return 0;
}
static int cheevos_test_condition(cheevos_cond_t *cond)
{
unsigned sval = cheevos_get_var_value(&cond->source) + cheevos_locals.add_buffer;
unsigned tval = cheevos_get_var_value(&cond->target);
unsigned sval = cheevos_var_get_value(&cond->source) + cheevos_locals.add_buffer;
unsigned tval = cheevos_var_get_value(&cond->target);
switch (cond->op)
{
@ -1975,14 +1590,14 @@ static int cheevos_test_cond_set(const cheevos_condset_t *condset,
if (cond->type == CHEEVOS_COND_TYPE_ADD_SOURCE)
{
cheevos_locals.add_buffer += cheevos_get_var_value(&cond->source);
cheevos_locals.add_buffer += cheevos_var_get_value(&cond->source);
set_valid &= 1;
continue;
}
if (cond->type == CHEEVOS_COND_TYPE_SUB_SOURCE)
{
cheevos_locals.add_buffer -= cheevos_get_var_value(&cond->source);
cheevos_locals.add_buffer -= cheevos_var_get_value(&cond->source);
set_valid &= 1;
continue;
}
@ -2276,7 +1891,7 @@ static int cheevos_expr_value(cheevos_expr_t* expr)
for (i = expr->count; i != 0; i--, term++)
{
value += cheevos_get_var_value(&term->var) * term->multiplier;
value += cheevos_var_get_value(&term->var) * term->multiplier;
}
return value;
@ -2721,7 +2336,7 @@ static void cheevos_patch_addresses(cheevoset_t* set)
{
case CHEEVOS_VAR_TYPE_ADDRESS:
case CHEEVOS_VAR_TYPE_DELTA_MEM:
cheevos_parse_guest_addr(&cond->source, cond->source.value);
cheevos_var_patch_addr(&cond->source, cheevos_locals.console_id);
#ifdef CHEEVOS_DUMP_ADDRS
RARCH_LOG("[CHEEVOS]: var %03d:%08X\n", cond->source.bank_id + 1, cond->source.value);
#endif
@ -2735,7 +2350,7 @@ static void cheevos_patch_addresses(cheevoset_t* set)
{
case CHEEVOS_VAR_TYPE_ADDRESS:
case CHEEVOS_VAR_TYPE_DELTA_MEM:
cheevos_parse_guest_addr(&cond->target, cond->target.value);
cheevos_var_patch_addr(&cond->target, cheevos_locals.console_id);
#ifdef CHEEVOS_DUMP_ADDRS
RARCH_LOG("[CHEEVOS]: var %03d:%08X\n", cond->target.bank_id + 1, cond->target.value);
#endif
@ -2788,6 +2403,11 @@ bool cheevos_get_support_cheevos(void)
return cheevos_locals.core_supports;
}
cheevos_console_t cheevos_get_console(void)
{
return cheevos_locals.console_id;
}
typedef struct
{
uint8_t id[4]; /* NES^Z */
@ -2861,7 +2481,7 @@ static int cheevos_iterate(coro_t* coro)
size_t to_read = 4096;
uint8_t *buffer = NULL;
const char *end = NULL;
enum
{
/* Negative values because CORO_SUB generates positive values */

41
cheevos/cheevos.h
View File

@ -23,6 +23,19 @@
RETRO_BEGIN_DECLS
/*****************************************************************************
Setup - mainly for debugging
*****************************************************************************/
/* Define this macro to get extra-verbose log for cheevos. */
#undef CHEEVOS_VERBOSE
/*****************************************************************************
End of setup
*****************************************************************************/
#define CHEEVOS_TAG "[CHEEVOS]: "
typedef struct cheevos_ctx_desc
{
unsigned idx;
@ -30,14 +43,24 @@ typedef struct cheevos_ctx_desc
size_t len;
} cheevos_ctx_desc_t;
typedef struct
typedef enum
{
unsigned size;
unsigned type;
int bank_id;
unsigned value;
unsigned previous;
} cheevos_var_t;
/* Don't change those, the values match the console IDs
* at retroachievements.org. */
CHEEVOS_CONSOLE_MEGA_DRIVE = 1,
CHEEVOS_CONSOLE_NINTENDO_64 = 2,
CHEEVOS_CONSOLE_SUPER_NINTENDO = 3,
CHEEVOS_CONSOLE_GAMEBOY = 4,
CHEEVOS_CONSOLE_GAMEBOY_ADVANCE = 5,
CHEEVOS_CONSOLE_GAMEBOY_COLOR = 6,
CHEEVOS_CONSOLE_NINTENDO = 7,
CHEEVOS_CONSOLE_PC_ENGINE = 8,
CHEEVOS_CONSOLE_SEGA_CD = 9,
CHEEVOS_CONSOLE_SEGA_32X = 10,
CHEEVOS_CONSOLE_MASTER_SYSTEM = 11,
CHEEVOS_CONSOLE_XBOX_360 = 12,
CHEEVOS_CONSOLE_ATARI_LYNX = 13
} cheevos_console_t;
bool cheevos_load(const void *data);
@ -61,9 +84,7 @@ void cheevos_set_support_cheevos(bool state);
bool cheevos_get_support_cheevos(void);
void cheevos_parse_guest_addr(cheevos_var_t *var, unsigned value);
uint8_t *cheevos_get_memory(const cheevos_var_t *var);
cheevos_console_t cheevos_get_console(void);
extern bool cheevos_loaded;
extern int cheats_are_enabled;

410
cheevos/var.c Normal file
View File

@ -0,0 +1,410 @@
/* RetroArch - A frontend for libretro.
* Copyright (C) 2015-2017 - Andre Leiradella
*
* RetroArch 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch 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 RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <ctype.h>
#include <stdint.h>
#include <libretro.h>
#include "var.h"
#include "../retroarch.h"
#include "../core.h"
#include "../verbosity.h"
#ifdef CHEEVOS_VERBOSE
#define CHEEVOS_LOG RARCH_LOG
#else
#define CHEEVOS_LOG(...)
#endif
/*****************************************************************************
Parsing
*****************************************************************************/
static cheevos_var_size_t cheevos_var_parse_prefix(const char** memaddr)
{
/* Careful not to use ABCDEF here, this denotes part of an actual variable! */
const char* str = *memaddr;
cheevos_var_size_t size;
switch (toupper((unsigned char)*str++))
{
case 'M':
size = CHEEVOS_VAR_SIZE_BIT_0;
break;
case 'N':
size = CHEEVOS_VAR_SIZE_BIT_1;
break;
case 'O':
size = CHEEVOS_VAR_SIZE_BIT_2;
break;
case 'P':
size = CHEEVOS_VAR_SIZE_BIT_3;
break;
case 'Q':
size = CHEEVOS_VAR_SIZE_BIT_4;
break;
case 'R':
size = CHEEVOS_VAR_SIZE_BIT_5;
break;
case 'S':
size = CHEEVOS_VAR_SIZE_BIT_6;
break;
case 'T':
size = CHEEVOS_VAR_SIZE_BIT_7;
break;
case 'L':
size = CHEEVOS_VAR_SIZE_NIBBLE_LOWER;
break;
case 'U':
size = CHEEVOS_VAR_SIZE_NIBBLE_UPPER;
break;
case 'H':
size = CHEEVOS_VAR_SIZE_EIGHT_BITS;
break;
case 'X':
size = CHEEVOS_VAR_SIZE_THIRTYTWO_BITS;
break;
default:
str--;
/* fall through */
case ' ':
size = CHEEVOS_VAR_SIZE_SIXTEEN_BITS;
break;
}
*memaddr = str;
return size;
}
static size_t cheevos_var_reduce(size_t addr, size_t mask)
{
while (mask)
{
size_t tmp = (mask - 1) & ~mask;
addr = (addr & tmp) | ((addr >> 1) & ~tmp);
mask = (mask & (mask - 1)) >> 1;
}
return addr;
}
static size_t cheevos_var_highest_bit(size_t n)
{
n |= n >> 1;
n |= n >> 2;
n |= n >> 4;
n |= n >> 8;
n |= n >> 16;
return n ^ (n >> 1);
}
void cheevos_var_parse(cheevos_var_t* var, const char** memaddr)
{
char *end = NULL;
const char *str = *memaddr;
unsigned base = 16;
if (toupper((unsigned char)*str) == 'D' && str[1] == '0' && toupper((unsigned char)str[2]) == 'X')
{
/* d0x + 4 hex digits */
str += 3;
var->type = CHEEVOS_VAR_TYPE_DELTA_MEM;
}
else if (*str == '0' && toupper((unsigned char)str[1]) == 'X')
{
/* 0x + 4 hex digits */
str += 2;
var->type = CHEEVOS_VAR_TYPE_ADDRESS;
}
else
{
var->type = CHEEVOS_VAR_TYPE_VALUE_COMP;
if (toupper((unsigned char)*str) == 'H')
str++;
else
{
if (toupper((unsigned char)*str) == 'V')
str++;
base = 10;
}
}
if (var->type != CHEEVOS_VAR_TYPE_VALUE_COMP)
{
var->size = cheevos_var_parse_prefix(&str);
}
var->value = (unsigned)strtol(str, &end, base);
*memaddr = end;
}
void cheevos_var_patch_addr(cheevos_var_t* var, cheevos_console_t console)
{
rarch_system_info_t *system = runloop_get_system_info();
var->bank_id = -1;
if (console == CHEEVOS_CONSOLE_NINTENDO)
{
if (var->value >= 0x0800 && var->value < 0x2000)
{
CHEEVOS_LOG(CHEEVOS_TAG "NES memory address in mirrorred RAM %X, adjusted to %X\n", var->value, var->value & 0x07ff);
var->value &= 0x07ff;
}
}
else if (console == CHEEVOS_CONSOLE_GAMEBOY_COLOR)
{
if (var->value >= 0xe000 && var->value <= 0xfdff)
{
CHEEVOS_LOG(CHEEVOS_TAG "GBC memory address in echo RAM %X, adjusted to %X\n", var->value, var->value - 0x2000);
var->value -= 0x2000;
}
}
if (system->mmaps.num_descriptors != 0)
{
const rarch_memory_descriptor_t *desc = NULL;
const rarch_memory_descriptor_t *end = NULL;
/* Patch the address to correctly map it to the mmaps */
if (console == CHEEVOS_CONSOLE_GAMEBOY_ADVANCE)
{
if (var->value < 0x8000) /* Internal RAM */
{
CHEEVOS_LOG(CHEEVOS_TAG "GBA memory address %X adjusted to %X\n", var->value, var->value + 0x3000000);
var->value += 0x3000000;
}
else /* Work RAM */
{
CHEEVOS_LOG(CHEEVOS_TAG "GBA memory address %X adjusted to %X\n", var->value, var->value + 0x2000000 - 0x8000);
var->value += 0x2000000 - 0x8000;
}
}
else if (console == CHEEVOS_CONSOLE_PC_ENGINE)
{
CHEEVOS_LOG(CHEEVOS_TAG "PCE memory address %X adjusted to %X\n", var->value, var->value + 0x1f0000);
var->value += 0x1f0000;
}
else if (console == CHEEVOS_CONSOLE_SUPER_NINTENDO)
{
if (var->value < 0x020000) /* Work RAM */
{
CHEEVOS_LOG(CHEEVOS_TAG "SNES memory address %X adjusted to %X\n", var->value, var->value + 0x7e0000);
var->value += 0x7e0000;
}
else /* Save RAM */
{
CHEEVOS_LOG(CHEEVOS_TAG "SNES memory address %X adjusted to %X\n", var->value, var->value + 0x006000 - 0x020000);
var->value += 0x006000 - 0x020000;
}
}
desc = system->mmaps.descriptors;
end = desc + system->mmaps.num_descriptors;
for (; desc < end; desc++)
{
if (((desc->core.start ^ var->value) & desc->core.select) == 0)
{
unsigned addr = var->value;
var->bank_id = (int)(desc - system->mmaps.descriptors);
var->value = (unsigned)cheevos_var_reduce(
(var->value - desc->core.start) & desc->disconnect_mask,
desc->core.disconnect);
if (var->value >= desc->core.len)
var->value -= cheevos_var_highest_bit(var->value);
var->value += desc->core.offset;
CHEEVOS_LOG(CHEEVOS_TAG "address %X set to descriptor %d at offset %X\n", addr, var->bank_id + 1, var->value);
break;
}
}
}
else
{
unsigned i;
for (i = 0; i < 4; i++)
{
retro_ctx_memory_info_t meminfo;
switch (i)
{
case 0:
meminfo.id = RETRO_MEMORY_SYSTEM_RAM;
break;
case 1:
meminfo.id = RETRO_MEMORY_SAVE_RAM;
break;
case 2:
meminfo.id = RETRO_MEMORY_VIDEO_RAM;
break;
case 3:
meminfo.id = RETRO_MEMORY_RTC;
break;
}
core_get_memory(&meminfo);
if (var->value < meminfo.size)
{
var->bank_id = i;
break;
}
/* HACK subtract the correct amount of bytes to reach the save RAM */
if (i == 0 && console == CHEEVOS_CONSOLE_NINTENDO)
var->value -= 0x6000;
else
var->value -= meminfo.size;
}
}
}
/*****************************************************************************
Testing
*****************************************************************************/
uint8_t* cheevos_var_get_memory(const cheevos_var_t* var)
{
uint8_t* memory = NULL;
if (var->bank_id >= 0)
{
rarch_system_info_t* system = runloop_get_system_info();
if (system->mmaps.num_descriptors != 0)
memory = (uint8_t*)system->mmaps.descriptors[var->bank_id].core.ptr;
else
{
retro_ctx_memory_info_t meminfo;
switch (var->bank_id)
{
case 0:
meminfo.id = RETRO_MEMORY_SYSTEM_RAM;
break;
case 1:
meminfo.id = RETRO_MEMORY_SAVE_RAM;
break;
case 2:
meminfo.id = RETRO_MEMORY_VIDEO_RAM;
break;
case 3:
meminfo.id = RETRO_MEMORY_RTC;
break;
default:
RARCH_ERR(CHEEVOS_TAG "invalid bank id: %s\n", var->bank_id);
break;
}
core_get_memory(&meminfo);
memory = (uint8_t*)meminfo.data;
}
if (memory)
memory += var->value;
}
return memory;
}
unsigned cheevos_var_get_value(cheevos_var_t* var)
{
const uint8_t* memory = NULL;
unsigned value = 0;
switch (var->type)
{
case CHEEVOS_VAR_TYPE_VALUE_COMP:
value = var->value;
break;
case CHEEVOS_VAR_TYPE_ADDRESS:
case CHEEVOS_VAR_TYPE_DELTA_MEM:
memory = cheevos_var_get_memory(var);
if (memory)
{
value = memory[0];
switch (var->size)
{
case CHEEVOS_VAR_SIZE_BIT_0:
value &= 1;
break;
case CHEEVOS_VAR_SIZE_BIT_1:
value = (value >> 1) & 1;
break;
case CHEEVOS_VAR_SIZE_BIT_2:
value = (value >> 2) & 1;
break;
case CHEEVOS_VAR_SIZE_BIT_3:
value = (value >> 3) & 1;
break;
case CHEEVOS_VAR_SIZE_BIT_4:
value = (value >> 4) & 1;
break;
case CHEEVOS_VAR_SIZE_BIT_5:
value = (value >> 5) & 1;
break;
case CHEEVOS_VAR_SIZE_BIT_6:
value = (value >> 6) & 1;
break;
case CHEEVOS_VAR_SIZE_BIT_7:
value = (value >> 7) & 1;
break;
case CHEEVOS_VAR_SIZE_NIBBLE_LOWER:
value &= 0x0f;
break;
case CHEEVOS_VAR_SIZE_NIBBLE_UPPER:
value = (value >> 4) & 0x0f;
break;
case CHEEVOS_VAR_SIZE_EIGHT_BITS:
break;
case CHEEVOS_VAR_SIZE_SIXTEEN_BITS:
value |= memory[1] << 8;
break;
case CHEEVOS_VAR_SIZE_THIRTYTWO_BITS:
value |= memory[1] << 8;
value |= memory[2] << 16;
value |= memory[3] << 24;
break;
}
}
if (var->type == CHEEVOS_VAR_TYPE_DELTA_MEM)
{
unsigned previous = var->previous;
var->previous = value;
value = previous;
}
break;
case CHEEVOS_VAR_TYPE_DYNAMIC_VAR:
/* We shouldn't get here... */
break;
}
return value;
}

77
cheevos/var.h Normal file
View File

@ -0,0 +1,77 @@
/* RetroArch - A frontend for libretro.
* Copyright (C) 2015-2017 - Andre Leiradella
*
* RetroArch 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch 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 RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __RARCH_CHEEVOS_VAR_H
#define __RARCH_CHEEVOS_VAR_H
#include <stdint.h>
#include "cheevos.h"
#include <retro_common_api.h>
RETRO_BEGIN_DECLS
typedef enum
{
CHEEVOS_VAR_SIZE_BIT_0 = 0,
CHEEVOS_VAR_SIZE_BIT_1,
CHEEVOS_VAR_SIZE_BIT_2,
CHEEVOS_VAR_SIZE_BIT_3,
CHEEVOS_VAR_SIZE_BIT_4,
CHEEVOS_VAR_SIZE_BIT_5,
CHEEVOS_VAR_SIZE_BIT_6,
CHEEVOS_VAR_SIZE_BIT_7,
CHEEVOS_VAR_SIZE_NIBBLE_LOWER,
CHEEVOS_VAR_SIZE_NIBBLE_UPPER,
/* Byte, */
CHEEVOS_VAR_SIZE_EIGHT_BITS, /* =Byte, */
CHEEVOS_VAR_SIZE_SIXTEEN_BITS,
CHEEVOS_VAR_SIZE_THIRTYTWO_BITS
} cheevos_var_size_t;
typedef enum
{
/* compare to the value of a live address in RAM */
CHEEVOS_VAR_TYPE_ADDRESS = 0,
/* a number. assume 32 bit */
CHEEVOS_VAR_TYPE_VALUE_COMP,
/* the value last known at this address. */
CHEEVOS_VAR_TYPE_DELTA_MEM,
/* a custom user-set variable */
CHEEVOS_VAR_TYPE_DYNAMIC_VAR
} cheevos_var_type_t;
typedef struct
{
cheevos_var_size_t size;
cheevos_var_type_t type;
int bank_id;
unsigned value;
unsigned previous;
} cheevos_var_t;
void cheevos_var_parse(cheevos_var_t* var, const char** memaddr);
void cheevos_var_patch_addr(cheevos_var_t* var, cheevos_console_t console);
uint8_t* cheevos_var_get_memory(const cheevos_var_t* var);
unsigned cheevos_var_get_value(cheevos_var_t* var);
RETRO_END_DECLS
#endif /* __RARCH_CHEEVOS_VAR_H */

11
command.c
View File

@ -40,6 +40,7 @@
#ifdef HAVE_CHEEVOS
#include "cheevos/cheevos.h"
#include "cheevos/var.h"
#endif
#ifdef HAVE_MENU
@ -261,8 +262,9 @@ static bool command_read_ram(const char *arg)
reply_at = reply + strlen("READ_CORE_RAM ");
strlcpy(reply_at, arg, sizeof(reply)-strlen(reply));
cheevos_parse_guest_addr(&var, strtoul(reply_at, (char**)&reply_at, 16));
data = cheevos_get_memory(&var);
var.value = strtoul(reply_at, (char**)&reply_at, 16);
cheevos_var_patch_addr(&var, cheevos_get_console());
data = cheevos_var_get_memory(&var);
if (data)
{
@ -293,9 +295,10 @@ static bool command_write_ram(const char *arg)
unsigned nbytes = 0;
uint8_t *data = NULL;
cheevos_parse_guest_addr(&var, strtoul(arg, (char**)&arg, 16));
var.value = strtoul(arg, (char**)&arg, 16);
cheevos_var_patch_addr(&var, cheevos_get_console());
data = cheevos_get_memory(&var);
data = cheevos_var_get_memory(&var);
if (data)
{

1
griffin/griffin.c
View File

@ -151,6 +151,7 @@ ACHIEVEMENTS
#include "../libretro-common/formats/json/jsonsax.c"
#include "../network/net_http_special.c"
#include "../cheevos/cheevos.c"
#include "../cheevos/var.c"
#endif
/*============================================================