From dd114d7d8e8d30bde79eb72d3ae1afc2f06cebb7 Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Sun, 31 Oct 2021 18:33:40 +0200
Subject: [PATCH] some drc debug helpers

---
 libpcsxcore/new_dynarec/assem_arm.c   | 51 +++++++++++++++++++++++++--
 libpcsxcore/new_dynarec/emu_if.c      |  2 ++
 libpcsxcore/new_dynarec/new_dynarec.c | 25 +++++++++++++
 3 files changed, 76 insertions(+), 2 deletions(-)

diff --git a/libpcsxcore/new_dynarec/assem_arm.c b/libpcsxcore/new_dynarec/assem_arm.c
index b336bcca..8693c2dd 100644
--- a/libpcsxcore/new_dynarec/assem_arm.c
+++ b/libpcsxcore/new_dynarec/assem_arm.c
@@ -43,6 +43,12 @@ char translation_cache[1 << TARGET_SIZE_2] __attribute__((aligned(4096)));
 
 #define unused __attribute__((unused))
 
+#ifdef DRC_DBG
+#pragma GCC diagnostic ignored "-Wunused-function"
+#pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
+#endif
+
 extern int cycle_count;
 extern int last_count;
 extern int pcaddr;
@@ -1651,16 +1657,57 @@ static void emit_set_if_carry64_32(int u1, int l1, int u2, int l2, int rt)
   emit_cmovb_imm(1,rt);
 }
 
+#ifdef DRC_DBG
+extern void gen_interupt();
+extern void do_insn_cmp();
+#define FUNCNAME(f) { (intptr_t)f, " " #f }
+static const struct {
+  intptr_t addr;
+  const char *name;
+} function_names[] = {
+  FUNCNAME(cc_interrupt),
+  FUNCNAME(gen_interupt),
+  FUNCNAME(get_addr_ht),
+  FUNCNAME(get_addr),
+  FUNCNAME(jump_handler_read8),
+  FUNCNAME(jump_handler_read16),
+  FUNCNAME(jump_handler_read32),
+  FUNCNAME(jump_handler_write8),
+  FUNCNAME(jump_handler_write16),
+  FUNCNAME(jump_handler_write32),
+  FUNCNAME(invalidate_addr),
+  FUNCNAME(verify_code_vm),
+  FUNCNAME(verify_code),
+  FUNCNAME(jump_hlecall),
+  FUNCNAME(jump_syscall_hle),
+  FUNCNAME(new_dyna_leave),
+  FUNCNAME(pcsx_mtc0),
+  FUNCNAME(pcsx_mtc0_ds),
+  FUNCNAME(do_insn_cmp),
+};
+
+static const char *func_name(intptr_t a)
+{
+  int i;
+  for (i = 0; i < sizeof(function_names)/sizeof(function_names[0]); i++)
+    if (function_names[i].addr == a)
+      return function_names[i].name;
+  return "";
+}
+#else
+#define func_name(x) ""
+#endif
+
 static void emit_call(int a)
 {
-  assem_debug("bl %x (%x+%x)\n",a,(int)out,a-(int)out-8);
+  assem_debug("bl %x (%x+%x)%s\n",a,(int)out,a-(int)out-8,func_name(a));
   u_int offset=genjmp(a);
   output_w32(0xeb000000|offset);
 }
 
 static void emit_jmp(int a)
 {
-  assem_debug("b %x (%x+%x)\n",a,(int)out,a-(int)out-8);
+  assem_debug("b %x (%x+%x)%s\n",a,(int)out,a-(int)out-8,func_name(a));
   u_int offset=genjmp(a);
   output_w32(0xea000000|offset);
 }
diff --git a/libpcsxcore/new_dynarec/emu_if.c b/libpcsxcore/new_dynarec/emu_if.c
index 0569cebd..2c82f58b 100644
--- a/libpcsxcore/new_dynarec/emu_if.c
+++ b/libpcsxcore/new_dynarec/emu_if.c
@@ -489,6 +489,7 @@ static u32 memcheck_read(u32 a)
 	return *(u32 *)(psxM + (a & 0x1ffffc));
 }
 
+#if 0
 void do_insn_trace(void)
 {
 	static psxRegisters oldregs;
@@ -550,6 +551,7 @@ void do_insn_trace(void)
 	}
 #endif
 }
+#endif
 
 static const char *regnames[offsetof(psxRegisters, intCycle) / 4] = {
 	"r0",  "r1",  "r2",  "r3",  "r4",  "r5",  "r6",  "r7",
diff --git a/libpcsxcore/new_dynarec/new_dynarec.c b/libpcsxcore/new_dynarec/new_dynarec.c
index 7646e074..6d7069d9 100644
--- a/libpcsxcore/new_dynarec/new_dynarec.c
+++ b/libpcsxcore/new_dynarec/new_dynarec.c
@@ -4263,6 +4263,28 @@ int match_bt(signed char i_regmap[],uint64_t i_is32,uint64_t i_dirty,int addr)
   return 1;
 }
 
+#ifdef DRC_DBG
+static void drc_dbg_emit_do_cmp(int i)
+{
+  extern void do_insn_cmp();
+  extern int cycle;
+  u_int hr,reglist=0;
+
+  for(hr=0;hr<HOST_REGS;hr++)
+    if(regs[i].regmap[hr]>=0) reglist|=1<<hr;
+  save_regs(reglist);
+  emit_movimm(start+i*4,0);
+  emit_writeword(0,(int)&pcaddr);
+  emit_call((int)do_insn_cmp);
+  //emit_readword((int)&cycle,0);
+  //emit_addimm(0,2,0);
+  //emit_writeword(0,(int)&cycle);
+  restore_regs(reglist);
+}
+#else
+#define drc_dbg_emit_do_cmp(x)
+#endif
+
 // Used when a branch jumps into the delay slot of another branch
 void ds_assemble_entry(int i)
 {
@@ -4270,6 +4292,7 @@ void ds_assemble_entry(int i)
   if(!instr_addr[t]) instr_addr[t]=(u_int)out;
   assem_debug("Assemble delay slot at %x\n",ba[i]);
   assem_debug("<->\n");
+  drc_dbg_emit_do_cmp(t);
   if(regs[t].regmap_entry[HOST_CCREG]==CCREG&&regs[t].regmap[HOST_CCREG]!=CCREG)
     wb_register(CCREG,regs[t].regmap_entry,regs[t].wasdirty,regs[t].was32);
   load_regs(regs[t].regmap_entry,regs[t].regmap,regs[t].was32,rs1[t],rs2[t]);
@@ -10033,6 +10056,8 @@ int new_recompile_block(int addr)
       // branch target entry point
       instr_addr[i]=(u_int)out;
       assem_debug("<->\n");
+      drc_dbg_emit_do_cmp(i);
+
       // load regs
       if(regs[i].regmap_entry[HOST_CCREG]==CCREG&&regs[i].regmap[HOST_CCREG]!=CCREG)
         wb_register(CCREG,regs[i].regmap_entry,regs[i].wasdirty,regs[i].was32);
-- 
2.39.2