--- SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp	2004/02/20 17:20:15	1.29
+++ SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp	2004/04/22 21:45:18	1.34
@@ -40,6 +40,7 @@
 #include "ether.h"
 
 #include <stdio.h>
+#include <stdlib.h>
 
 #if ENABLE_MON
 #include "mon.h"
@@ -167,16 +168,31 @@ void *operator new(size_t size)
 {
 	void *p;
 
-	/* XXX: try different approaches */
+#if defined(HAVE_POSIX_MEMALIGN)
 	if (posix_memalign(&p, 16, size) != 0)
 		throw std::bad_alloc();
+#elif defined(HAVE_MEMALIGN)
+	p = memalign(16, size);
+#elif defined(HAVE_VALLOC)
+	p = valloc(size); // page-aligned!
+#else
+	/* XXX: handle padding ourselves */
+	p = malloc(size);
+#endif
 
 	return p;
 }
 
 void operator delete(void *p)
 {
+#if defined(HAVE_MEMALIGN) || defined(HAVE_VALLOC)
+#if defined(__GLIBC__)
+	// this is known to work only with GNU libc
 	free(p);
+#endif
+#else
+	free(p);
+#endif
 }
 
 sheepshaver_cpu::sheepshaver_cpu()
@@ -715,6 +731,10 @@ static sigsegv_return_t sigsegv_handler(
 		else if (pc == ROM_BASE + 0x4a10a0 && (cpu->gpr(20) == 0xf3012002 || cpu->gpr(20) == 0xf3012000))
 			return SIGSEGV_RETURN_SKIP_INSTRUCTION;
 
+		// Ignore writes to the zero page
+		else if ((uint32)(addr - SheepMem::ZeroPage()) < (uint32)SheepMem::PageSize())
+			return SIGSEGV_RETURN_SKIP_INSTRUCTION;
+
 		// Ignore all other faults, if requested
 		if (PrefsFindBool("ignoresegv"))
 			return SIGSEGV_RETURN_SKIP_INSTRUCTION;
@@ -971,6 +991,24 @@ static void NativeOp(int selector)
 		GPR(3) = false;
 		break;
 #endif
+	case NATIVE_SYNC_HOOK:
+		GPR(3) = NQD_sync_hook(GPR(3));
+		break;
+	case NATIVE_BITBLT_HOOK:
+		GPR(3) = NQD_bitblt_hook(GPR(3));
+		break;
+	case NATIVE_BITBLT:
+		NQD_bitblt(GPR(3));
+		break;
+	case NATIVE_FILLRECT_HOOK:
+		GPR(3) = NQD_fillrect_hook(GPR(3));
+		break;
+	case NATIVE_INVRECT:
+		NQD_invrect(GPR(3));
+		break;
+	case NATIVE_FILLRECT:
+		NQD_fillrect(GPR(3));
+		break;
 	case NATIVE_SERIAL_NOTHING:
 	case NATIVE_SERIAL_OPEN:
 	case NATIVE_SERIAL_PRIME_IN: