#include "../frontend/main.h"
+#if (defined(__arm__) || defined(__aarch64__)) && !defined(ALLOW_LIGHTREC_ON_ARM)
+#error "Lightrec should not be used on ARM (please specify DYNAREC=ari64 to make)"
+#endif
+
#define ARRAY_SIZE(x) (sizeof(x) ? sizeof(x) / sizeof((x)[0]) : 0)
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
# define unlikely(x) (x)
#endif
+psxRegisters psxRegs;
+Rcnt rcnts[4];
+
static struct lightrec_state *lightrec_state;
static char *name = "retroarch.exe";
static bool use_pcsx_interpreter;
static bool lightrec_debug;
static bool lightrec_very_debug;
+static bool booting;
static u32 lightrec_begin_cycles;
-int stop;
-u32 cycle_multiplier;
-int new_dynarec_hacks;
-
-/* Unused for now */
-u32 event_cycles[PSXINT_COUNT];
-u32 next_interupt;
-
-void new_dyna_before_save() {}
-void new_dyna_after_save() {}
-void new_dyna_freeze(void *f, int i) {}
-
enum my_cp2_opcodes {
OP_CP2_RTPS = 0x01,
OP_CP2_NCLIP = 0x06,
static char cache_buf[64 * 1024];
-static u32 cop0_mfc(struct lightrec_state *state, u32 op, u8 reg)
-{
- return psxRegs.CP0.r[reg];
-}
-
-static u32 cop2_mfc_cfc(struct lightrec_state *state, u8 reg, bool cfc)
-{
- if (cfc)
- return psxRegs.CP2C.r[reg];
- else
- return MFC2(reg);
-}
-
-static u32 cop2_mfc(struct lightrec_state *state, u32 op, u8 reg)
+static void cop2_op(struct lightrec_state *state, u32 func)
{
- return cop2_mfc_cfc(state, reg, false);
-}
+ struct lightrec_registers *regs = lightrec_get_registers(state);
-static u32 cop2_cfc(struct lightrec_state *state, u32 op, u8 reg)
-{
- return cop2_mfc_cfc(state, reg, true);
-}
-
-static void cop0_mtc_ctc(struct lightrec_state *state,
- u8 reg, u32 value, bool ctc)
-{
- switch (reg) {
- case 1:
- case 4:
- case 8:
- case 14:
- case 15:
- /* Those registers are read-only */
- break;
- case 12: /* Status */
- if ((psxRegs.CP0.n.Status & ~value) & (1 << 16)) {
- memcpy(psxM, cache_buf, sizeof(cache_buf));
- lightrec_invalidate_all(state);
- } else if ((~psxRegs.CP0.n.Status & value) & (1 << 16)) {
- memcpy(cache_buf, psxM, sizeof(cache_buf));
- }
+ psxRegs.code = func;
- psxRegs.CP0.n.Status = value;
- lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
- break;
- case 13: /* Cause */
- psxRegs.CP0.n.Cause &= ~0x0300;
- psxRegs.CP0.n.Cause |= value & 0x0300;
- lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
- break;
- default:
- psxRegs.CP0.r[reg] = value;
- break;
+ if (unlikely(!cp2_ops[func & 0x3f])) {
+ fprintf(stderr, "Invalid CP2 function %u\n", func);
+ } else {
+ /* This works because regs->cp2c comes right after regs->cp2d,
+ * so it can be cast to a pcsxCP2Regs pointer. */
+ cp2_ops[func & 0x3f]((psxCP2Regs *) regs->cp2d);
}
}
-static void cop2_mtc_ctc(struct lightrec_state *state,
- u8 reg, u32 value, bool ctc)
+static bool has_interrupt(void)
{
- if (ctc)
- CTC2(value, reg);
- else
- MTC2(value, reg);
+ return ((psxHu32(0x1070) & psxHu32(0x1074)) &&
+ (psxRegs.CP0.n.Status & 0x401) == 0x401) ||
+ (psxRegs.CP0.n.Status & psxRegs.CP0.n.Cause & 0x0300);
}
-static void cop0_mtc(struct lightrec_state *state, u32 op, u8 reg, u32 value)
+static void lightrec_restore_state(struct lightrec_state *state)
{
- cop0_mtc_ctc(state, reg, value, false);
-}
-
-static void cop0_ctc(struct lightrec_state *state, u32 op, u8 reg, u32 value)
-{
- cop0_mtc_ctc(state, reg, value, true);
-}
-
-static void cop2_mtc(struct lightrec_state *state, u32 op, u8 reg, u32 value)
-{
- cop2_mtc_ctc(state, reg, value, false);
-}
-
-static void cop2_ctc(struct lightrec_state *state, u32 op, u8 reg, u32 value)
-{
- cop2_mtc_ctc(state, reg, value, true);
-}
-
-static void cop0_op(struct lightrec_state *state, u32 func)
-{
- fprintf(stderr, "Invalid access to COP0\n");
-}
-
-static void cop2_op(struct lightrec_state *state, u32 func)
-{
- psxRegs.code = func;
+ lightrec_reset_cycle_count(state, psxRegs.cycle);
- if (unlikely(!cp2_ops[func & 0x3f]))
- fprintf(stderr, "Invalid CP2 function %u\n", func);
+ if (booting || has_interrupt())
+ lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
else
- cp2_ops[func & 0x3f](&psxRegs.CP2);
+ lightrec_set_target_cycle_count(state, next_interupt);
}
static void hw_write_byte(struct lightrec_state *state,
psxRegs.cycle = lightrec_current_cycle_count(state);
psxHwWrite8(mem, val);
- lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
- lightrec_reset_cycle_count(state, psxRegs.cycle);
+ lightrec_restore_state(state);
}
static void hw_write_half(struct lightrec_state *state,
psxRegs.cycle = lightrec_current_cycle_count(state);
psxHwWrite16(mem, val);
- lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
- lightrec_reset_cycle_count(state, psxRegs.cycle);
+ lightrec_restore_state(state);
}
static void hw_write_word(struct lightrec_state *state,
psxRegs.cycle = lightrec_current_cycle_count(state);
psxHwWrite32(mem, val);
- lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
- lightrec_reset_cycle_count(state, psxRegs.cycle);
+ lightrec_restore_state(state);
}
static u8 hw_read_byte(struct lightrec_state *state, u32 op, void *host, u32 mem)
psxRegs.cycle = lightrec_current_cycle_count(state);
- lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
val = psxHwRead8(mem);
- lightrec_reset_cycle_count(state, psxRegs.cycle);
+
+ lightrec_restore_state(state);
return val;
}
psxRegs.cycle = lightrec_current_cycle_count(state);
- lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
val = psxHwRead16(mem);
- lightrec_reset_cycle_count(state, psxRegs.cycle);
+
+ lightrec_restore_state(state);
return val;
}
psxRegs.cycle = lightrec_current_cycle_count(state);
- lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
val = psxHwRead32(mem);
- lightrec_reset_cycle_count(state, psxRegs.cycle);
+
+ lightrec_restore_state(state);
return val;
}
},
};
+static void lightrec_enable_ram(struct lightrec_state *state, bool enable)
+{
+ if (enable)
+ memcpy(psxM, cache_buf, sizeof(cache_buf));
+ else
+ memcpy(cache_buf, psxM, sizeof(cache_buf));
+}
+
static const struct lightrec_ops lightrec_ops = {
- .cop0_ops = {
- .mfc = cop0_mfc,
- .cfc = cop0_mfc,
- .mtc = cop0_mtc,
- .ctc = cop0_ctc,
- .op = cop0_op,
- },
- .cop2_ops = {
- .mfc = cop2_mfc,
- .cfc = cop2_cfc,
- .mtc = cop2_mtc,
- .ctc = cop2_ctc,
- .op = cop2_op,
- },
+ .cop2_op = cop2_op,
+ .enable_ram = lightrec_enable_ram,
};
static int lightrec_plugin_init(void)
printf("\n");
}
+static void lightrec_dump_regs(struct lightrec_state *state)
+{
+ struct lightrec_registers *regs = lightrec_get_registers(state);
-extern void intExecuteBlock();
+ if (unlikely(booting))
+ memcpy(&psxRegs.GPR, regs->gpr, sizeof(regs->gpr));
+ psxRegs.CP0.n.Status = regs->cp0[12];
+ psxRegs.CP0.n.Cause = regs->cp0[13];
+}
-static u32 old_cycle_counter;
+static void lightrec_restore_regs(struct lightrec_state *state)
+{
+ struct lightrec_registers *regs = lightrec_get_registers(state);
+
+ if (unlikely(booting))
+ memcpy(regs->gpr, &psxRegs.GPR, sizeof(regs->gpr));
+ regs->cp0[12] = psxRegs.CP0.n.Status;
+ regs->cp0[13] = psxRegs.CP0.n.Cause;
+ regs->cp0[14] = psxRegs.CP0.n.EPC;
+}
+
+extern void intExecuteBlock();
+extern void gen_interupt();
static void lightrec_plugin_execute_block(void)
{
u32 old_pc = psxRegs.pc;
u32 flags;
+ gen_interupt();
+
if (use_pcsx_interpreter) {
intExecuteBlock();
} else {
lightrec_reset_cycle_count(lightrec_state, psxRegs.cycle);
- lightrec_restore_registers(lightrec_state, psxRegs.GPR.r);
+ lightrec_restore_regs(lightrec_state);
- if (use_lightrec_interpreter)
+ if (unlikely(use_lightrec_interpreter))
psxRegs.pc = lightrec_run_interpreter(lightrec_state,
psxRegs.pc);
- else
+ // step during early boot so that 0x80030000 fastboot hack works
+ else if (unlikely(booting || lightrec_debug))
psxRegs.pc = lightrec_execute_one(lightrec_state,
psxRegs.pc);
+ else
+ psxRegs.pc = lightrec_execute(lightrec_state,
+ psxRegs.pc, next_interupt);
psxRegs.cycle = lightrec_current_cycle_count(lightrec_state);
- lightrec_dump_registers(lightrec_state, psxRegs.GPR.r);
+ lightrec_dump_regs(lightrec_state);
flags = lightrec_exit_flags(lightrec_state);
if (flags & LIGHTREC_EXIT_SEGFAULT) {
if (flags & LIGHTREC_EXIT_SYSCALL)
psxException(0x20, 0);
- }
- psxBranchTest();
+ if (booting && (psxRegs.pc & 0xff800000) == 0x80000000)
+ booting = false;
+ }
if (lightrec_debug && psxRegs.cycle >= lightrec_begin_cycles
&& psxRegs.pc != old_pc)
psxRegs.CP0.n.Cause &= ~0x7c;
psxException(psxRegs.CP0.n.Cause, 0);
}
-
- if ((psxRegs.cycle & ~0xfffffff) != old_cycle_counter) {
- SysDLog("RAM usage: Lightrec %u KiB, IR %u KiB, CODE %u KiB, "
- "MIPS %u KiB, TOTAL %u KiB, avg. IPI %f\n",
- lightrec_get_mem_usage(MEM_FOR_LIGHTREC) / 1024,
- lightrec_get_mem_usage(MEM_FOR_IR) / 1024,
- lightrec_get_mem_usage(MEM_FOR_CODE) / 1024,
- lightrec_get_mem_usage(MEM_FOR_MIPS_CODE) / 1024,
- lightrec_get_total_mem_usage() / 1024,
- lightrec_get_average_ipi());
- old_cycle_counter = psxRegs.cycle & ~0xfffffff;
- }
}
static void lightrec_plugin_execute(void)
lightrec_invalidate(lightrec_state, addr, size * 4);
}
-#ifdef ICACHE_EMULATION
static void lightrec_plugin_notify(int note, void *data)
{
/*
break;
}*/
}
-#endif
+
+static void lightrec_plugin_apply_config()
+{
+}
static void lightrec_plugin_shutdown(void)
{
static void lightrec_plugin_reset(void)
{
+ struct lightrec_registers *regs;
+
lightrec_plugin_shutdown();
lightrec_plugin_init();
+
+ regs = lightrec_get_registers(lightrec_state);
+
+ regs->cp0[12] = 0x10900000; // COP0 enabled | BEV = 1 | TS = 1
+ regs->cp0[15] = 0x00000002; // PRevID = Revision ID, same as R3000A
+
+ booting = true;
}
R3000Acpu psxRec =
lightrec_plugin_execute,
lightrec_plugin_execute_block,
lightrec_plugin_clear,
-#ifdef ICACHE_EMULATION
lightrec_plugin_notify,
-#endif
+ lightrec_plugin_apply_config,
lightrec_plugin_shutdown,
};
notaz.gp2x.de / pcsx_rearmed.git / blobdiff