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Use fractional cycles within Lightrec
[pcsx_rearmed.git]
/
libpcsxcore
/
lightrec
/
plugin.c
diff --git
a/libpcsxcore/lightrec/plugin.c
b/libpcsxcore/lightrec/plugin.c
index
ff74352
..
2a46942
100644
(file)
--- a/
libpcsxcore/lightrec/plugin.c
+++ b/
libpcsxcore/lightrec/plugin.c
@@
-64,8
+64,6
@@
static char *name = "retroarch.exe";
static bool use_lightrec_interpreter;
static bool use_pcsx_interpreter;
static bool block_stepping;
static bool use_lightrec_interpreter;
static bool use_pcsx_interpreter;
static bool block_stepping;
-static u32 cycle_mult_to_pcsx; // 22.10 fractional
-static u32 cycle_mult_from_pcsx;
enum my_cp2_opcodes {
OP_CP2_RTPS = 0x01,
enum my_cp2_opcodes {
OP_CP2_RTPS = 0x01,
@@
-144,15
+142,9
@@
static bool has_interrupt(void)
(regs->cp0[12] & regs->cp0[13] & 0x0300);
}
(regs->cp0[12] & regs->cp0[13] & 0x0300);
}
-static u32 cycles_pcsx_to_lightrec(u32 c)
-{
- assert((u64)c * cycle_mult_from_pcsx <= (u32)-1);
- return c * cycle_mult_from_pcsx >> 10;
-}
-
static void lightrec_tansition_to_pcsx(struct lightrec_state *state)
{
static void lightrec_tansition_to_pcsx(struct lightrec_state *state)
{
- psxRegs.cycle += lightrec_current_cycle_count(state)
* cycle_mult_to_pcsx >> 10
;
+ psxRegs.cycle += lightrec_current_cycle_count(state)
/ 1024
;
lightrec_reset_cycle_count(state, 0);
}
lightrec_reset_cycle_count(state, 0);
}
@@
-163,8
+155,7
@@
static void lightrec_tansition_from_pcsx(struct lightrec_state *state)
if (block_stepping || cycles_left <= 0 || has_interrupt())
lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
else {
if (block_stepping || cycles_left <= 0 || has_interrupt())
lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
else {
- lightrec_set_target_cycle_count(state,
- cycles_pcsx_to_lightrec(cycles_left));
+ lightrec_set_target_cycle_count(state, cycles_left * 1024);
}
}
}
}
@@
-506,7
+497,7
@@
static void lightrec_plugin_execute_internal(bool block_only)
if (use_pcsx_interpreter) {
intExecuteBlock(0);
} else {
if (use_pcsx_interpreter) {
intExecuteBlock(0);
} else {
- u32 cycles_lightrec = cycles_pcsx
_to_lightrec(cycles_pcsx)
;
+ u32 cycles_lightrec = cycles_pcsx
* 1024
;
if (unlikely(use_lightrec_interpreter)) {
psxRegs.pc = lightrec_run_interpreter(lightrec_state,
psxRegs.pc,
if (unlikely(use_lightrec_interpreter)) {
psxRegs.pc = lightrec_run_interpreter(lightrec_state,
psxRegs.pc,
@@
-584,8
+575,8
@@
static void lightrec_plugin_apply_config()
u32 cycle_mult = Config.cycle_multiplier_override && Config.cycle_multiplier == CYCLE_MULT_DEFAULT
? Config.cycle_multiplier_override : Config.cycle_multiplier;
assert(cycle_mult);
u32 cycle_mult = Config.cycle_multiplier_override && Config.cycle_multiplier == CYCLE_MULT_DEFAULT
? Config.cycle_multiplier_override : Config.cycle_multiplier;
assert(cycle_mult);
- cycle_mult_to_pcsx = (cycle_mult * 1024 + 199) / 200;
-
cycle_mult_from_pcsx = (200 * 1024 + cycle_mult/2) / cycle_mult
;
+
+
lightrec_set_cycles_per_opcode(lightrec_state, cycle_mult * 1024 / 100)
;
}
static void lightrec_plugin_shutdown(void)
}
static void lightrec_plugin_shutdown(void)