32x: final renderer tweaks; PWM disable kills PWM irqs

[picodrive.git] / pico / 32x / 32x.c

diff --git a/pico/32x/32x.c b/pico/32x/32x.c
index ba89d98..b631a30 100644 (file)
--- a/pico/32x/32x.c
+++ b/pico/32x/32x.c
@@ -4,10 +4,19 @@
 struct Pico32x Pico32x;
 SH2 sh2s[2];
 
-static void sh2_irq_cb(int id, int level)
+static int REGPARM(2) sh2_irq_cb(SH2 *sh2, int level)
 {
-  // diagnostic for now
-  elprintf(EL_32X, "%csh2 ack %d @ %08x", id ? 's' : 'm', level, sh2_pc(id));
+  if (sh2->pending_irl > sh2->pending_int_irq) {
+    elprintf(EL_32X, "%csh2 ack/irl %d @ %08x",
+      sh2->is_slave ? 's' : 'm', level, sh2->pc);
+    return 64 + sh2->pending_irl / 2;
+  } else {
+    elprintf(EL_32X, "%csh2 ack/int %d/%d @ %08x",
+      sh2->is_slave ? 's' : 'm', level, sh2->pending_int_vector, sh2->pc);
+    sh2->pending_int_irq = 0; // auto-clear
+    sh2->pending_level = sh2->pending_irl;
+    return sh2->pending_int_vector;
+  }
 }
 
 void p32x_update_irls(void)
@@ -120,7 +129,7 @@ void PicoPower32x(void)
 void PicoUnload32x(void)
 {
   if (Pico32xMem != NULL)
-    free(Pico32xMem);
+    plat_munmap(Pico32xMem, sizeof(*Pico32xMem));
   Pico32xMem = NULL;
   sh2_finish(&msh2);
   sh2_finish(&ssh2);
@@ -139,6 +148,26 @@ void PicoReset32x(void)
 
 static void p32x_start_blank(void)
 {
+  if (Pico32xDrawMode != 0) {
+    if ((Pico32x.vdp_regs[0] & P32XV_Mx) != 0 && // 32x not blanking
+        (Pico.video.reg[12] & 1) && // 40col mode
+        (PicoDrawMask & PDRAW_32X_ON))
+    {
+      int md_bg = Pico.video.reg[7] & 0x3f;
+      int offs = 8, lines = 224;
+      if (Pico.video.reg[1] & 8) {
+        offs = 0;
+        lines = 240;
+      }
+
+      // we draw full layer (not line-by-line)
+      PicoDraw32xLayer(offs, lines, md_bg);
+    }
+    else {
+      // TODO: MD layer only?
+    }
+  }
+
   // enter vblank
   Pico32x.vdp_regs[0x0a/2] |= P32XV_VBLK|P32XV_PEN;
 
@@ -156,6 +185,8 @@ static void p32x_start_blank(void)
 
 static __inline void run_m68k(int cyc)
 {
+  pprof_start(m68k);
+
 #if defined(EMU_C68K)
   PicoCpuCM68k.cycles = cyc;
   CycloneRun(&PicoCpuCM68k);
@@ -165,6 +196,8 @@ static __inline void run_m68k(int cyc)
 #elif defined(EMU_F68K)
   SekCycleCnt += fm68k_emulate(cyc+1, 0, 0);
 #endif
+
+  pprof_end(m68k);
 }
 
 // ~1463.8, but due to cache misses and slow mem
@@ -185,10 +218,18 @@ static __inline void run_m68k(int cyc)
     slice = SekCycleCnt - slice; /* real count from 68k */ \
     if (SekCycleCnt < SekCycleAim) \
       elprintf(EL_32X, "slice %d", slice); \
-    if (!(Pico32x.emu_flags & (P32XF_SSH2POLL|P32XF_SSH2VPOLL))) \
+    if (!(Pico32x.emu_flags & (P32XF_SSH2POLL|P32XF_SSH2VPOLL))) { \
+      pprof_start(ssh2); \
       sh2_execute(&ssh2, CYCLES_M68K2SH2(slice)); \
-    if (!(Pico32x.emu_flags & (P32XF_MSH2POLL|P32XF_MSH2VPOLL))) \
+      pprof_end(ssh2); \
+    } \
+    if (!(Pico32x.emu_flags & (P32XF_MSH2POLL|P32XF_MSH2VPOLL))) { \
+      pprof_start(msh2); \
       sh2_execute(&msh2, CYCLES_M68K2SH2(slice)); \
+      pprof_end(msh2); \
+    } \
+    pprof_start(dummy); \
+    pprof_end(dummy); \
   } \
 }