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Make 2 cycles oc profiles.

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This commit is contained in:
Tatsuya79 2018-02-13 00:29:29 +01:00
parent fc6e980615
commit a6795bc0bb
3 changed files with 21 additions and 8 deletions
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19
libretro/libretro.c
View File

@ -226,6 +226,7 @@ static retro_environment_t environ_cb = NULL;
extern s9xcommand_t keymap[1024];
bool overclock_cycles = false;
bool reduce_sprite_flicker = false;
int one_c, slow_one_c, two_c;
static void check_variables(void)
{
@ -278,8 +279,20 @@ static void check_variables(void)
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (strcmp(var.value, "enabled") == 0)
overclock_cycles = true;
if (strcmp(var.value, "compatible") == 0)
{
overclock_cycles = true;
one_c = 4;
slow_one_c = 5;
two_c = 6;
}
else if (strcmp(var.value, "max") == 0)
{
overclock_cycles = true;
one_c = 3;
slow_one_c = 3;
two_c = 3;
}
else
overclock_cycles = false;
}
@ -393,7 +406,7 @@ void retro_set_environment(retro_environment_t cb)
{
static const struct retro_variable vars[] = {
{ "snes9x_next_overclock", "SuperFX Overclock; Disabled(10MHz)|40MHz|60MHz|80MHz|100MHz|Underclock(5MHz)|Underclock(8MHz)" },
{ "snes9x_next_overclock_cycles", "Reduce Slowdown (Hack, Unsafe); disabled|enabled" },
{ "snes9x_next_overclock_cycles", "Reduce Slowdown (Hack, Unsafe); disabled|compatible|max" },
{ "snes9x_next_reduce_sprite_flicker", "Reduce Flickering (Hack, Unsafe); disabled|enabled" },
{ NULL, NULL },
};

3
src/hwregisters.c
View File

@ -188,7 +188,6 @@
#include "bsx.h"
extern uint8 OpenBus;
extern bool overclock_cycles;
int32 memory_speed (uint32 address)
{
@ -197,7 +196,7 @@ int32 memory_speed (uint32 address)
if (address & 0x800000)
return (CPU.FastROMSpeed);
return (overclock_cycles ? 6 : SLOW_ONE_CYCLE);
return (SLOW_ONE_CYCLE);
}
if ((address + 0x6000) & 0x4000)

7
src/snes9x.h
View File

@ -233,9 +233,9 @@ extern "C" {
#define SNES_MAX_PAL_VCOUNTER 312
#define SNES_HCOUNTER_MAX 341
#define ONE_CYCLE (overclock_cycles ? 3 : 6)
#define SLOW_ONE_CYCLE (overclock_cycles ? 1 : 8)
#define TWO_CYCLES (overclock_cycles ? 1 : 12)
#define ONE_CYCLE (overclock_cycles ? one_c : 6)
#define SLOW_ONE_CYCLE (overclock_cycles ? slow_one_c : 8)
#define TWO_CYCLES (overclock_cycles ? two_c : 12)
#define ONE_DOT_CYCLE 4
#define ONE_DOT_CYCLE_DIV_2 2
@ -276,6 +276,7 @@ extern "C" {
#define HALTED_FLAG 4096 /* APU */
extern bool overclock_cycles;
extern int one_c, slow_one_c, two_c;
struct SCPUState
{