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rework sr
[picodrive.git] / pico / state.c
diff --git a/pico/state.c b/pico/state.c
index 089957e..69e8be0 100644 (file)
--- a/pico/state.c
+++ b/pico/state.c
@@ -7,7 +7,7 @@
  */\r
 \r
 #include "pico_int.h"\r
-#include <zlib/zlib.h>\r
+#include <zlib.h>\r
 \r
 #include "../cpu/sh2/sh2.h"\r
 #include "sound/ym2612.h"\r
@@ -78,54 +78,6 @@ static void *open_save_file(const char *fname, int is_save)
   return afile;\r
 }\r
 \r
-// legacy savestate loading\r
-#define SCANP(f, x) areaRead(&Pico.x, sizeof(Pico.x), 1, f)\r
-\r
-static int state_load_legacy(void *file)\r
-{\r
-  unsigned char head[32];\r
-  unsigned char cpu[0x60];\r
-  unsigned char cpu_z80[Z80_STATE_SIZE];\r
-  void *ym2612_regs;\r
-  int ok;\r
-\r
-  memset(&cpu,0,sizeof(cpu));\r
-  memset(&cpu_z80,0,sizeof(cpu_z80));\r
-\r
-  memset(head, 0, sizeof(head));\r
-  areaRead(head, sizeof(head), 1, file);\r
-  if (strcmp((char *)head, "Pico") != 0)\r
-    return -1;\r
-\r
-  elprintf(EL_STATUS, "legacy savestate");\r
-\r
-  // Scan all the memory areas:\r
-  SCANP(file, ram);\r
-  SCANP(file, vram);\r
-  SCANP(file, zram);\r
-  SCANP(file, cram);\r
-  SCANP(file, vsram);\r
-\r
-  // Pack, scan and unpack the cpu data:\r
-  areaRead(cpu, sizeof(cpu), 1, file);\r
-  SekUnpackCpu(cpu, 0);\r
-\r
-  SCANP(file, m);\r
-  SCANP(file, video);\r
-\r
-  ok = areaRead(cpu_z80, sizeof(cpu_z80), 1, file) == sizeof(cpu_z80);\r
-  // do not unpack if we fail to load z80 state\r
-  if (!ok) z80_reset();\r
-  else     z80_unpack(cpu_z80);\r
-\r
-  ym2612_regs = YM2612GetRegs();\r
-  areaRead(sn76496_regs, 28*4, 1, file);\r
-  areaRead(ym2612_regs, 0x200+4, 1, file);\r
-  ym2612_unpack_state();\r
-\r
-  return 0;\r
-}\r
-\r
 // ---------------------------------------------------------------------------\r
 \r
 typedef enum {\r
@@ -278,9 +230,9 @@ static int state_save(void *file)
     memset(buff, 0, sizeof(buff));\r
     SekPackCpu(buff, 0);\r
     CHECKED_WRITE_BUFF(CHUNK_M68K,  buff);\r
-    CHECKED_WRITE_BUFF(CHUNK_RAM,   Pico.ram);\r
-    CHECKED_WRITE_BUFF(CHUNK_VSRAM, Pico.vsram);\r
-    CHECKED_WRITE_BUFF(CHUNK_IOPORTS, Pico.ioports);\r
+    CHECKED_WRITE_BUFF(CHUNK_RAM,   PicoMem.ram);\r
+    CHECKED_WRITE_BUFF(CHUNK_VSRAM, PicoMem.vsram);\r
+    CHECKED_WRITE_BUFF(CHUNK_IOPORTS, PicoMem.ioports);\r
     ym2612_pack_state();\r
     CHECKED_WRITE(CHUNK_FM, 0x200+4, ym2612_regs);\r
   }\r
@@ -288,9 +240,9 @@ static int state_save(void *file)
     CHECKED_WRITE_BUFF(CHUNK_SMS, Pico.ms);\r
   }\r
 \r
-  CHECKED_WRITE_BUFF(CHUNK_VRAM,  Pico.vram);\r
-  CHECKED_WRITE_BUFF(CHUNK_ZRAM,  Pico.zram);\r
-  CHECKED_WRITE_BUFF(CHUNK_CRAM,  Pico.cram);\r
+  CHECKED_WRITE_BUFF(CHUNK_VRAM,  PicoMem.vram);\r
+  CHECKED_WRITE_BUFF(CHUNK_ZRAM,  PicoMem.zram);\r
+  CHECKED_WRITE_BUFF(CHUNK_CRAM,  PicoMem.cram);\r
   CHECKED_WRITE_BUFF(CHUNK_MISC,  Pico.m);\r
   CHECKED_WRITE_BUFF(CHUNK_VIDEO, Pico.video);\r
 \r
@@ -469,14 +421,14 @@ static int state_load(void *file)
         CHECKED_READ_BUFF(buff_z80);\r
         break;\r
 \r
-      case CHUNK_RAM:     CHECKED_READ_BUFF(Pico.ram); break;\r
-      case CHUNK_VRAM:    CHECKED_READ_BUFF(Pico.vram); break;\r
-      case CHUNK_ZRAM:    CHECKED_READ_BUFF(Pico.zram); break;\r
-      case CHUNK_CRAM:    CHECKED_READ_BUFF(Pico.cram); break;\r
-      case CHUNK_VSRAM:   CHECKED_READ_BUFF(Pico.vsram); break;\r
+      case CHUNK_RAM:     CHECKED_READ_BUFF(PicoMem.ram); break;\r
+      case CHUNK_VRAM:    CHECKED_READ_BUFF(PicoMem.vram); break;\r
+      case CHUNK_ZRAM:    CHECKED_READ_BUFF(PicoMem.zram); break;\r
+      case CHUNK_CRAM:    CHECKED_READ_BUFF(PicoMem.cram); break;\r
+      case CHUNK_VSRAM:   CHECKED_READ_BUFF(PicoMem.vsram); break;\r
       case CHUNK_MISC:    CHECKED_READ_BUFF(Pico.m); break;\r
       case CHUNK_VIDEO:   CHECKED_READ_BUFF(Pico.video); break;\r
-      case CHUNK_IOPORTS: CHECKED_READ_BUFF(Pico.ioports); break;\r
+      case CHUNK_IOPORTS: CHECKED_READ_BUFF(PicoMem.ioports); break;\r
       case CHUNK_PSG:     CHECKED_READ2(28*4, sn76496_regs); break;\r
       case CHUNK_FM:\r
         ym2612_regs = YM2612GetRegs();\r
@@ -589,6 +541,9 @@ readend:
   if (PicoAHW & PAHW_32X)\r
     Pico32xStateLoaded(1);\r
 \r
+  if (PicoLoadStateHook != NULL)\r
+    PicoLoadStateHook();\r
+\r
   // must unpack 68k and z80 after banks are set up\r
   if (!(PicoAHW & PAHW_SMS))\r
     SekUnpackCpu(buff_m68k, 0);\r
@@ -598,7 +553,7 @@ readend:
   z80_unpack(buff_z80);\r
 \r
   // due to dep from 68k cycles..\r
-  SekCycleAim = SekCycleCnt;\r
+  Pico.t.m68c_aim = Pico.t.m68c_cnt;\r
   if (PicoAHW & PAHW_32X)\r
     Pico32xStateLoaded(0);\r
   if (PicoAHW & PAHW_MCD)\r
@@ -607,6 +562,11 @@ readend:
     pcd_state_loaded();\r
   }\r
 \r
+  Pico.m.dirtyPal = 1;\r
+  Pico.video.status &= ~(SR_VB | SR_F);\r
+  Pico.video.status |= ((Pico.video.reg[1] >> 3) ^ SR_VB) & SR_VB;\r
+  Pico.video.status |= (Pico.video.pending_ints << 2) & SR_F;\r
+\r
   retval = 0;\r
 \r
 out:\r
@@ -638,9 +598,9 @@ static int state_load_gfx(void *file)
 \r
     switch (buff[0])\r
     {\r
-      case CHUNK_VRAM:  CHECKED_READ_BUFF(Pico.vram);  found++; break;\r
-      case CHUNK_CRAM:  CHECKED_READ_BUFF(Pico.cram);  found++; break;\r
-      case CHUNK_VSRAM: CHECKED_READ_BUFF(Pico.vsram); found++; break;\r
+      case CHUNK_VRAM:  CHECKED_READ_BUFF(PicoMem.vram);  found++; break;\r
+      case CHUNK_CRAM:  CHECKED_READ_BUFF(PicoMem.cram);  found++; break;\r
+      case CHUNK_VSRAM: CHECKED_READ_BUFF(PicoMem.vsram); found++; break;\r
       case CHUNK_VIDEO: CHECKED_READ_BUFF(Pico.video); found++; break;\r
 \r
 #ifndef NO_32X\r
@@ -676,17 +636,8 @@ static int pico_state_internal(void *afile, int is_save)
 \r
   if (is_save)\r
     ret = state_save(afile);\r
-  else {\r
+  else\r
     ret = state_load(afile);\r
-    if (ret != 0) {\r
-      areaSeek(afile, 0, SEEK_SET);\r
-      ret = state_load_legacy(afile);\r
-    }\r
-\r
-    if (PicoLoadStateHook != NULL)\r
-      PicoLoadStateHook();\r
-    Pico.m.dirtyPal = 1;\r
-  }\r
 \r
   return ret;\r
 }\r
@@ -730,10 +681,10 @@ int PicoStateLoadGfx(const char *fname)
   if (ret != 0) {\r
     // assume legacy\r
     areaSeek(afile, 0x10020, SEEK_SET);  // skip header and RAM\r
-    areaRead(Pico.vram, 1, sizeof(Pico.vram), afile);\r
+    areaRead(PicoMem.vram, 1, sizeof(PicoMem.vram), afile);\r
     areaSeek(afile, 0x2000, SEEK_CUR);\r
-    areaRead(Pico.cram, 1, sizeof(Pico.cram), afile);\r
-    areaRead(Pico.vsram, 1, sizeof(Pico.vsram), afile);\r
+    areaRead(PicoMem.cram, 1, sizeof(PicoMem.cram), afile);\r
+    areaRead(PicoMem.vsram, 1, sizeof(PicoMem.vsram), afile);\r
     areaSeek(afile, 0x221a0, SEEK_SET);\r
     areaRead(&Pico.video, 1, sizeof(Pico.video), afile);\r
   }\r
@@ -766,9 +717,9 @@ void *PicoTmpStateSave(void)
   if (t == NULL)\r
     return NULL;\r
 \r
-  memcpy(t->vram, Pico.vram, sizeof(Pico.vram));\r
-  memcpy(t->cram, Pico.cram, sizeof(Pico.cram));\r
-  memcpy(t->vsram, Pico.vsram, sizeof(Pico.vsram));\r
+  memcpy(t->vram, PicoMem.vram, sizeof(PicoMem.vram));\r
+  memcpy(t->cram, PicoMem.cram, sizeof(PicoMem.cram));\r
+  memcpy(t->vsram, PicoMem.vsram, sizeof(PicoMem.vsram));\r
   memcpy(&t->video, &Pico.video, sizeof(Pico.video));\r
 \r
 #ifndef NO_32X\r
@@ -788,9 +739,9 @@ void PicoTmpStateRestore(void *data)
   if (t == NULL)\r
     return;\r
 \r
-  memcpy(Pico.vram, t->vram, sizeof(Pico.vram));\r
-  memcpy(Pico.cram, t->cram, sizeof(Pico.cram));\r
-  memcpy(Pico.vsram, t->vsram, sizeof(Pico.vsram));\r
+  memcpy(PicoMem.vram, t->vram, sizeof(PicoMem.vram));\r
+  memcpy(PicoMem.cram, t->cram, sizeof(PicoMem.cram));\r
+  memcpy(PicoMem.vsram, t->vsram, sizeof(PicoMem.vsram));\r
   memcpy(&Pico.video, &t->video, sizeof(Pico.video));\r
   Pico.m.dirtyPal = 1;\r
 \r
fast MegaDrive/MegaCD/32X emulator