diff --git a/core/hw/pvr/Renderer_if.cpp b/core/hw/pvr/Renderer_if.cpp
index 20c2d1309..8a8a8e808 100644
--- a/core/hw/pvr/Renderer_if.cpp
+++ b/core/hw/pvr/Renderer_if.cpp
@@ -98,8 +98,6 @@ bool fb_dirty;
 
 TA_context* _pvrrc;
 void SetREP(TA_context* cntx);
-void killtex();
-bool render_output_framebuffer();
 static void rend_create_renderer();
 
 void dump_frame(const char* file, TA_context* ctx, u8* vram, u8* vram_ref = NULL) {
@@ -394,7 +392,6 @@ void rend_init_renderer()
 
 void rend_term_renderer()
 {
-	killtex();
 	gui_term();
 	renderer->Term();
 	delete renderer;
diff --git a/core/nullDC.cpp b/core/nullDC.cpp
index ccf093489..dd34f4a48 100755
--- a/core/nullDC.cpp
+++ b/core/nullDC.cpp
@@ -357,6 +357,7 @@ int reicast_init(int argc, char* argv[])
 
 void set_platform(int platform)
 {
+	_vmem_unprotect_vram(0, VRAM_SIZE);
 	switch (platform)
 	{
 	case DC_PLATFORM_DREAMCAST:
diff --git a/core/rend/TexCache.cpp b/core/rend/TexCache.cpp
index fba0ce9b4..41fe8dfff 100644
--- a/core/rend/TexCache.cpp
+++ b/core/rend/TexCache.cpp
@@ -274,17 +274,11 @@ void libCore_vramlock_Unlock_block(vram_block* block)
 
 void libCore_vramlock_Unlock_block_wb(vram_block* block)
 {
-		//VRAM_SIZE/PAGE_SIZE;
-	if (block->end>VRAM_SIZE)
-		WARN_LOG(PVR, "Error : block end is after vram , skipping unlock");
-	else
-	{
-		if (mmu_enabled())
-			vmem32_unprotect_vram(block->start, block->len);
-		vramlock_list_remove(block);
-		//more work needed
-		free(block);
-	}
+	if (mmu_enabled())
+		vmem32_unprotect_vram(block->start, block->len);
+	vramlock_list_remove(block);
+	//more work needed
+	free(block);
 }
 
 //
diff --git a/core/rend/gl4/gles.cpp b/core/rend/gl4/gles.cpp
index e1f140a76..5d040cebd 100644
--- a/core/rend/gl4/gles.cpp
+++ b/core/rend/gl4/gles.cpp
@@ -971,8 +971,6 @@ static bool RenderFrame()
 
 	eglCheck();
 
-	KillTex=false;
-
 	if (is_rtt)
 		ReadRTTBuffer();
 	else if (settings.rend.ScreenScaling != 100 || gl.swap_buffer_not_preserved)
@@ -1015,8 +1013,7 @@ struct gl4rend : Renderer
 			glcache.DeleteTextures(1, &depthSaveTexId);
 			depthSaveTexId = 0;
 		}
-		if (KillTex)
-			killtex();
+		killtex();
 
 		CollectCleanup();
 
diff --git a/core/rend/gles/gles.cpp b/core/rend/gles/gles.cpp
index e5e9798bf..0582f1007 100644
--- a/core/rend/gles/gles.cpp
+++ b/core/rend/gles/gles.cpp
@@ -2040,8 +2040,6 @@ bool RenderFrame()
 
 	eglCheck();
 
-	KillTex=false;
-
 	if (is_rtt)
 		ReadRTTBuffer();
 	else if (settings.rend.ScreenScaling != 100 || gl.swap_buffer_not_preserved)
@@ -2062,8 +2060,7 @@ struct glesrend : Renderer
 	void Resize(int w, int h) { screen_width=w; screen_height=h; }
 	void Term()
 	{
-		if (KillTex)
-			killtex();
+		killtex();
 		gles_term();
 	}
 
diff --git a/core/rend/gles/gltex.cpp b/core/rend/gles/gltex.cpp
index 8f6507830..22d6f1451 100644
--- a/core/rend/gles/gltex.cpp
+++ b/core/rend/gles/gltex.cpp
@@ -848,6 +848,7 @@ void killtex()
 	}
 
 	TexCache.clear();
+	KillTex = false;
 	INFO_LOG(RENDERER, "Texture cache cleared");
 }