Now use glfw/OpenGL for displaying.

Code is a bit crude, but the whole emulator would need a proper refactor at some point anyway.

.gitignore

@@ -21,3 +21,7 @@ rom/
 dumpinfo
 testserial
 wonderswan
+
+# Build folder
+cmake-*/
+build*/

.gitmodules

@@ -0,0 +1,6 @@
+[submodule "external/portaudio"]
+	path = external/portaudio
+	url = https://git.assembla.com/portaudio.git
+[submodule "external/glfw"]
+	path = external/glfw
+	url = https://github.com/glfw/glfw.git

.travis.yml

@@ -0,0 +1,38 @@
+dist: bionic
+language: c
+os:
+  - linux
+#  - osx
+#matrix:
+#  allow_failures:
+#    - os: osx
+
+addons:
+  apt:
+    packages:
+      - libsdl1.2debian
+      - libsdl1.2-dev
+
+compiler:
+  - clang
+  - gcc
+
+script:
+  - make
+  - mkdir build
+  - cd build
+  - cmake ..
+  - make
+
+cache:
+  directories:
+    - '$HOME/.sonar/cache'
+
+#before_install:
+#  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update      ; fi
+#  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install glew; fi
+
+#install: true
+
+#after_success:
+#  - bash <(curl -s https://codecov.io/bash)

CMakeLists.txt

@@ -0,0 +1,36 @@
+cmake_minimum_required(VERSION 3.1)
+
+# External cmake modules
+set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/external/cmake ${CMAKE_MODULE_PATH})
+
+project("NewOswan")
+
+include(GetGitRevisionDescription)
+git_describe(VERSION --tags --dirty=-dirty)
+
+# Include GLFW3
+set(GLFW_BUILD_DOCS OFF CACHE BOOL "" FORCE)
+set(GLFW_BUILD_TESTS OFF CACHE BOOL "" FORCE)
+set(GLFW_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
+add_subdirectory("external/glfw")
+find_package(OpenGL REQUIRED)
+
+include_directories(${OPENGL_INCLUDE_DIR})
+
+set(CMAKE_C_FLAGS "-Wall -Wextra -Wno-unused-parameter -Wno-unused-result -Wno-write-strings -Werror")
+set(CMAKE_CXX_FLAGS "-Wall -Wextra -Wno-unused-parameter -Wno-unused-result -Wno-write-strings -Werror")
+
+message("-- Building version ${VERSION}")
+
+add_executable(wonderswan main.cpp)
+
+set_property(TARGET wonderswan PROPERTY CXX_STANDARD 98)
+
+target_compile_definitions(wonderswan PUBLIC VERSION="${VERSION}")
+target_include_directories(wonderswan PUBLIC source)
+
+add_subdirectory(source)
+
+target_link_libraries(wonderswan wswan glfw ${OPENGL_glu_LIBRARY} ${OPENGL_gl_LIBRARY})
+
+add_executable(dumpinfo dumpinfo.c)

Makefile

@@ -16,12 +16,13 @@ OBJS       = $(wonderswan_CXX_SRCS:.cpp=.o)
 
 all: wonderswan dumpinfo
 
-CXX       = g++
-CXXFLAGS  = -g -O2 `sdl-config --cflags` -Wall -Werror -std=c++98 -Wno-write-strings
+# CXX       = g++
+CXXFLAGS  = -g -O2 `sdl-config --cflags` -Wall -std=c++98 -Wno-write-strings -Wno-unused-result
 OPTIONS   =  -D_REENTRANT -I. -DVERSION=\"`git describe  --tags --long --dirty`\"
 
 LIBRARY_PATH =
-LIBS      = -g $(LIBRARY_PATH) `sdl-config --libs` 
+SDL_LIBS  = `sdl-config --libs`
+LIBS      = -g $(LIBRARY_PATH) $(SDL_LIBS)
 
 ALLCFLAGS = $(CFLAGS) $(CEXTRA) $(OPTIONS) $(ALLFLAGS)
 ALLCXXFLAGS=$(CXXFLAGS) $(CXXEXTRA) $(OPTIONS) $(ALLFLAGS)
@@ -53,4 +54,4 @@ dumpinfo: dumpinfo.o
 	$(CXX) $(LIBS) -o $@ $(<)
 
 wonderswan: $(OBJS)
-	$(CXX) $(LIBS) -o $@ $(OBJS)
+	$(CXX) -o $@ $(OBJS) $(LIBS)

external/cmake/GetGitRevisionDescription.cmake

@@ -0,0 +1,168 @@
+# - Returns a version string from Git
+#
+# These functions force a re-configure on each git commit so that you can
+# trust the values of the variables in your build system.
+#
+#  get_git_head_revision(<refspecvar> <hashvar> [<additional arguments to git describe> ...])
+#
+# Returns the refspec and sha hash of the current head revision
+#
+#  git_describe(<var> [<additional arguments to git describe> ...])
+#
+# Returns the results of git describe on the source tree, and adjusting
+# the output so that it tests false if an error occurs.
+#
+#  git_get_exact_tag(<var> [<additional arguments to git describe> ...])
+#
+# Returns the results of git describe --exact-match on the source tree,
+# and adjusting the output so that it tests false if there was no exact
+# matching tag.
+#
+#  git_local_changes(<var>)
+#
+# Returns either "CLEAN" or "DIRTY" with respect to uncommitted changes.
+# Uses the return code of "git diff-index --quiet HEAD --".
+# Does not regard untracked files.
+#
+# Requires CMake 2.6 or newer (uses the 'function' command)
+#
+# Original Author:
+# 2009-2010 Ryan Pavlik <rpavlik@iastate.edu> <abiryan@ryand.net>
+# http://academic.cleardefinition.com
+# Iowa State University HCI Graduate Program/VRAC
+#
+# Copyright Iowa State University 2009-2010.
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+if(__get_git_revision_description)
+    return()
+endif()
+set(__get_git_revision_description YES)
+
+# We must run the following at "include" time, not at function call time,
+# to find the path to this module rather than the path to a calling list file
+get_filename_component(_gitdescmoddir ${CMAKE_CURRENT_LIST_FILE} PATH)
+
+function(get_git_head_revision _refspecvar _hashvar)
+    set(GIT_PARENT_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
+    set(GIT_DIR "${GIT_PARENT_DIR}/.git")
+    while(NOT EXISTS "${GIT_DIR}")	# .git dir not found, search parent directories
+        set(GIT_PREVIOUS_PARENT "${GIT_PARENT_DIR}")
+        get_filename_component(GIT_PARENT_DIR ${GIT_PARENT_DIR} PATH)
+        if(GIT_PARENT_DIR STREQUAL GIT_PREVIOUS_PARENT)
+            # We have reached the root directory, we are not in git
+            set(${_refspecvar} "GITDIR-NOTFOUND" PARENT_SCOPE)
+            set(${_hashvar} "GITDIR-NOTFOUND" PARENT_SCOPE)
+            return()
+        endif()
+        set(GIT_DIR "${GIT_PARENT_DIR}/.git")
+    endwhile()
+    # check if this is a submodule
+    if(NOT IS_DIRECTORY ${GIT_DIR})
+        file(READ ${GIT_DIR} submodule)
+        string(REGEX REPLACE "gitdir: (.*)\n$" "\\1" GIT_DIR_RELATIVE ${submodule})
+        get_filename_component(SUBMODULE_DIR ${GIT_DIR} PATH)
+        get_filename_component(GIT_DIR ${SUBMODULE_DIR}/${GIT_DIR_RELATIVE} ABSOLUTE)
+    endif()
+    set(GIT_DATA "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/git-data")
+    if(NOT EXISTS "${GIT_DATA}")
+        file(MAKE_DIRECTORY "${GIT_DATA}")
+    endif()
+
+    if(NOT EXISTS "${GIT_DIR}/HEAD")
+        return()
+    endif()
+    set(HEAD_FILE "${GIT_DATA}/HEAD")
+    configure_file("${GIT_DIR}/HEAD" "${HEAD_FILE}" COPYONLY)
+
+    configure_file("${_gitdescmoddir}/GetGitRevisionDescription.cmake.in"
+            "${GIT_DATA}/grabRef.cmake"
+            @ONLY)
+    include("${GIT_DATA}/grabRef.cmake")
+
+    set(${_refspecvar} "${HEAD_REF}" PARENT_SCOPE)
+    set(${_hashvar} "${HEAD_HASH}" PARENT_SCOPE)
+endfunction()
+
+function(git_describe _var)
+    if(NOT GIT_FOUND)
+        find_package(Git QUIET)
+    endif()
+    get_git_head_revision(refspec hash)
+    if(NOT GIT_FOUND)
+        set(${_var} "GIT-NOTFOUND" PARENT_SCOPE)
+        return()
+    endif()
+    if(NOT hash)
+        set(${_var} "HEAD-HASH-NOTFOUND" PARENT_SCOPE)
+        return()
+    endif()
+
+    # TODO sanitize
+    #if((${ARGN}" MATCHES "&&") OR
+    #	(ARGN MATCHES "||") OR
+    #	(ARGN MATCHES "\\;"))
+    #	message("Please report the following error to the project!")
+    #	message(FATAL_ERROR "Looks like someone's doing something nefarious with git_describe! Passed arguments ${ARGN}")
+    #endif()
+
+    #message(STATUS "Arguments to execute_process: ${ARGN}")
+
+    execute_process(COMMAND
+            "${GIT_EXECUTABLE}"
+            describe
+            #${hash}
+            ${ARGN}
+            WORKING_DIRECTORY
+            "${CMAKE_CURRENT_SOURCE_DIR}"
+            RESULT_VARIABLE
+            res
+            OUTPUT_VARIABLE
+            out
+            ERROR_QUIET
+            OUTPUT_STRIP_TRAILING_WHITESPACE)
+    if(NOT res EQUAL 0)
+        set(out "${out}-${res}-NOTFOUND")
+    endif()
+
+    set(${_var} "${out}" PARENT_SCOPE)
+endfunction()
+
+function(git_get_exact_tag _var)
+    git_describe(out --exact-match ${ARGN})
+    set(${_var} "${out}" PARENT_SCOPE)
+endfunction()
+
+function(git_local_changes _var)
+    if(NOT GIT_FOUND)
+        find_package(Git QUIET)
+    endif()
+    get_git_head_revision(refspec hash)
+    if(NOT GIT_FOUND)
+        set(${_var} "GIT-NOTFOUND" PARENT_SCOPE)
+        return()
+    endif()
+    if(NOT hash)
+        set(${_var} "HEAD-HASH-NOTFOUND" PARENT_SCOPE)
+        return()
+    endif()
+
+    execute_process(COMMAND
+            "${GIT_EXECUTABLE}"
+            diff-index --quiet HEAD --
+            WORKING_DIRECTORY
+            "${CMAKE_CURRENT_SOURCE_DIR}"
+            RESULT_VARIABLE
+            res
+            OUTPUT_VARIABLE
+            out
+            ERROR_QUIET
+            OUTPUT_STRIP_TRAILING_WHITESPACE)
+    if(res EQUAL 0)
+        set(${_var} "CLEAN" PARENT_SCOPE)
+    else()
+        set(${_var} "DIRTY" PARENT_SCOPE)
+    endif()
+endfunction()

external/cmake/GetGitRevisionDescription.cmake.in

@@ -0,0 +1,41 @@
+#
+# Internal file for GetGitRevisionDescription.cmake
+#
+# Requires CMake 2.6 or newer (uses the 'function' command)
+#
+# Original Author:
+# 2009-2010 Ryan Pavlik <rpavlik@iastate.edu> <abiryan@ryand.net>
+# http://academic.cleardefinition.com
+# Iowa State University HCI Graduate Program/VRAC
+#
+# Copyright Iowa State University 2009-2010.
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+set(HEAD_HASH)
+
+file(READ "@HEAD_FILE@" HEAD_CONTENTS LIMIT 1024)
+
+string(STRIP "${HEAD_CONTENTS}" HEAD_CONTENTS)
+if(HEAD_CONTENTS MATCHES "ref")
+	# named branch
+	string(REPLACE "ref: " "" HEAD_REF "${HEAD_CONTENTS}")
+	if(EXISTS "@GIT_DIR@/${HEAD_REF}")
+		configure_file("@GIT_DIR@/${HEAD_REF}" "@GIT_DATA@/head-ref" COPYONLY)
+	else()
+		configure_file("@GIT_DIR@/packed-refs" "@GIT_DATA@/packed-refs" COPYONLY)
+		file(READ "@GIT_DATA@/packed-refs" PACKED_REFS)
+		if(${PACKED_REFS} MATCHES "([0-9a-z]*) ${HEAD_REF}")
+			set(HEAD_HASH "${CMAKE_MATCH_1}")
+		endif()
+	endif()
+else()
+	# detached HEAD
+	configure_file("@GIT_DIR@/HEAD" "@GIT_DATA@/head-ref" COPYONLY)
+endif()
+
+if(NOT HEAD_HASH)
+	file(READ "@GIT_DATA@/head-ref" HEAD_HASH LIMIT 1024)
+	string(STRIP "${HEAD_HASH}" HEAD_HASH)
+endif()

main.cpp

@@ -15,8 +15,6 @@
 #include <fcntl.h>
 #include <time.h>
 #include <unistd.h>
-#include "SDL.h"
-#include "source/SDLptc.h"
 #include "source/log.h"
 #include "source/rom.h"
 #include "source/nec/nec.h"
@@ -123,9 +121,6 @@ int ws_mk_ieppath()
 
 int main(int argc, char *argv[])
 {
-   atexit(SDL_Quit);
-   SDL_Init(SDL_INIT_TIMER);
-
    if (!log_init(LOG_PATH))
    {
       printf("Warning: cannot open log file %s\n",LOG_PATH);

source/CMakeLists.txt

@@ -0,0 +1,10 @@
+set(SOURCES audio.cpp emulate.cpp gpu.cpp io.cpp log.cpp memory.cpp rom.cpp ws.cpp)
+set(HEADERS audio.h emulate.h gpu.h ieeprom.h initialIo.h io.h log.h memory.h rom.h ws.h)
+
+add_library(wswan ${SOURCES} ${HEADERS})
+
+target_link_libraries(wswan nec_v30 glfw ${OPENGL_glu_LIBRARY} ${OPENGL_gl_LIBRARY})
+
+target_include_directories(wswan PUBLIC .)
+
+add_subdirectory(nec)

source/SDLptc.h

@@ -1,314 +0,0 @@
-
-/* Some simple emulation classes to get PTC code running on SDL */
-
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "SDL.h"
-
-#define randomize()	srand(time(NULL))
-#define random(max)	(rand()%(max))
-
-#ifndef stricmp
-#define stricmp strcasecmp
-#endif
-
-class Error
-{
-
-public:
-   Error(const char *message)
-   {
-      strcpy(_message, message);
-   }
-
-   void report(void)
-   {
-      printf("Error: %s\n", _message);
-   }
-
-private:
-
-   char _message[1024];
-};
-
-class Area
-{
-
-public:
-   Area(int left, int top, int right, int bottom)
-   {
-      _left = left;
-      _top = top;
-      _right = right;
-      _bottom = bottom;
-   }
-
-   int left(void) const
-   {
-      return(_left);
-   }
-   int right(void) const
-   {
-      return(_right);
-   }
-   int top(void) const
-   {
-      return(_top);
-   }
-   int bottom(void) const
-   {
-      return(_bottom);
-   }
-   int width(void) const
-   {
-      return(_right-_left);
-   }
-   int height(void) const
-   {
-      return(_bottom-_top);
-   }
-
-private:
-   int _left, _top, _right, _bottom;
-};
-
-
-class Format
-{
-
-public:
-   Format(int bpp, int maskR = 0, int maskG = 0, int maskB = 0)
-   {
-      _bpp = bpp;
-      _maskR = maskR;
-      _maskG = maskG;
-      _maskB = maskB;
-   }
-
-   Uint8 BPP(void) const
-   {
-      return(_bpp);
-   }
-   Uint32 MaskR(void) const
-   {
-      return(_maskR);
-   }
-   Uint32 MaskG(void) const
-   {
-      return(_maskG);
-   }
-   Uint32 MaskB(void) const
-   {
-      return(_maskB);
-   }
-
-private:
-   Uint8 _bpp;
-   Uint32 _maskR, _maskG, _maskB;
-};
-
-class Surface
-{
-
-public:
-   Surface(int w, int h, const Format &format)
-   {
-      surface = SDL_AllocSurface(SDL_SWSURFACE, w, h, format.BPP(),
-                                 format.MaskR(),format.MaskG(),format.MaskB(),0);
-
-      if ( surface == NULL )
-      {
-         throw Error(SDL_GetError());
-      }
-
-      nupdates = 0;
-      is_console = 0;
-   }
-   Surface(void)
-   {
-      nupdates = 0;
-      is_console = 1;
-   }
-   virtual ~Surface()
-   {
-      if ( ! is_console )
-      {
-         SDL_FreeSurface(surface);
-      }
-   }
-
-   virtual int width(void)
-   {
-      return surface->w;
-   }
-   virtual int height(void)
-   {
-      return surface->h;
-   }
-   virtual int pitch(void)
-   {
-      return surface->pitch;
-   }
-
-   virtual void palette(int32_t *pcolors)
-   {
-      SDL_Color colors[256];
-
-      for ( int i=0; i<256; ++i )
-      {
-         colors[i].r = (pcolors[i]>>16)&0xFF;
-         colors[i].g = (pcolors[i]>>8)&0xFF;
-         colors[i].b = (pcolors[i]>>0)&0xFF;
-      }
-
-      SDL_SetColors(surface, colors, 0, 256);
-   }
-
-   virtual void *lock(void)
-   {
-      if ( SDL_MUSTLOCK(surface) )
-      {
-         while ( SDL_LockSurface(surface) < 0 )
-         {
-            SDL_Delay(10);
-         }
-      }
-
-      return (Uint8 *)surface->pixels;
-   }
-
-   virtual void unlock(void)
-   {
-      if ( SDL_MUSTLOCK(surface) )
-      {
-         SDL_UnlockSurface(surface);
-      }
-   }
-
-   virtual void copy(Surface &dst,
-                     const Area &srcarea, const Area &dstarea)
-   {
-      SDL_Rect srcrect, dstrect;
-      srcrect.x = srcarea.left();
-      srcrect.y = srcarea.top();
-      srcrect.w = srcarea.width();
-      srcrect.h = srcarea.height();
-      dstrect.x = dstarea.left();
-      dstrect.y = dstarea.top();
-      dstrect.w = dstarea.width();
-      dstrect.h = dstarea.height();
-      SDL_BlitSurface(surface, &srcrect, dst.surface, &dstrect);
-      dst.updates[dst.nupdates++] = dstrect;
-   }
-   virtual void copy(Surface &dst)
-   {
-      SDL_Rect srcrect, dstrect;
-      srcrect.x = 0;
-      srcrect.y = 0;
-      srcrect.w = surface->w;
-      srcrect.h = surface->h;
-      dstrect.x = 0;
-      dstrect.y = 0;
-      dstrect.w = surface->w;
-      dstrect.h = surface->h;
-      SDL_LowerBlit(surface, &srcrect, dst.surface, &dstrect);
-      dst.updates[dst.nupdates++] = dstrect;
-   }
-
-   virtual void update(void)
-   {
-      SDL_UpdateRects(surface, nupdates, updates);
-      nupdates = 0;
-   }
-
-protected:
-   SDL_Surface *surface;
-   int nupdates;
-   SDL_Rect updates[1];		/* Definitely increase this.. */
-   int is_console;
-};
-
-class Console : public Surface
-{
-   int fullscreen;
-public:
-   Console() : Surface()
-   {
-      fullscreen=0;
-   }
-   ~Console()
-   {
-
-      SDL_Quit();
-   }
-   void close(void)
-   {
-      SDL_Quit();
-   }
-   void option(char *option)
-   {
-      if (!stricmp(option,"fullscreen output"))
-      {
-         fullscreen=1;
-      }
-      else if (!stricmp(option,"windowed output"))
-      {
-         fullscreen=0;
-      }
-   }
-   void open(const char *title, int width, int height, const Format &format)
-   {
-      uint32_t flags;
-
-      if ( SDL_InitSubSystem(SDL_INIT_VIDEO|SDL_INIT_JOYSTICK) < 0 )
-      {
-         throw Error(SDL_GetError());
-      }
-
-      flags = (SDL_HWSURFACE|SDL_HWPALETTE);
-
-      if (fullscreen)
-      {
-         flags|=SDL_FULLSCREEN;
-      }
-
-      surface = SDL_SetVideoMode(width, height, 0, flags);
-
-      if ( surface == NULL )
-      {
-         throw Error(SDL_GetError());
-      }
-
-      SDL_WM_SetCaption(title, title);
-   }
-
-   int key(void)
-   {
-      SDL_Event event;
-      int keyevent;
-
-      keyevent = 0;
-
-      while ( SDL_PollEvent(&event) )
-      {
-         /* Real key events trigger this function */
-         if ( event.type == SDL_KEYDOWN )
-         {
-            keyevent = 1;
-         }
-
-         /* So do quit events -- let the app know about it */
-         if ( event.type == SDL_QUIT )
-         {
-            keyevent = 1;
-         }
-      }
-
-      return(keyevent);
-   }
-
-private:
-
-};

source/audio.cpp

@@ -29,8 +29,6 @@
 #include "io.h"
 #include "audio.h"
 
-#include "SDL.h"
-
 #define	SNDP	ws_ioRam[0x80]
 #define SNDV	ws_ioRam[0x88]
 #define SNDSWP	ws_ioRam[0x8C]
@@ -91,6 +89,7 @@ int RandData[BUFSIZEN];
 int CntSwp=0;
 int PcmWrPos=0;
 
+/*
 const long TblChVol[16]=  				// n/15 n=0~15
 {
    -10000,-2352,-1750,-1398,-1148,-954,-796,-662,
@@ -101,6 +100,7 @@ const long TblMainVol[4]=  				// 1,1/2,1/4,1/8
 {
    0,-602,-1204,-1806
 };
+*/
 
 ////////////////////////////////////////////////////////////////////////////////
 // seal audio specific
@@ -142,7 +142,6 @@ void ws_audio_init(void)
    ws_audio_log=0;
    //ws_audio_seal_init();
    ws_audio_reset();
-   SDL_PauseAudio(0);
 }
 ////////////////////////////////////////////////////////////////////////////////
 //

source/emulate.cpp

@@ -19,9 +19,16 @@
 #include <errno.h>   /* Error number definitions */
 #include <termios.h> /* POSIX terminal control definitions */
 #include <sys/mman.h>
+#include <sys/time.h>
+
+#define GLFW_INCLUDE_GLEXT
+#define GL_SILENCE_DEPRECATION
+#include <GLFW/glfw3.h>
+/* "Apple" fix */
+#ifndef GL_TEXTURE_RECTANGLE
+#define GL_TEXTURE_RECTANGLE GL_TEXTURE_RECTANGLE_EXT
+#endif
 
-#include "SDL.h"
-#include "SDLptc.h"
 #include "log.h"
 #include "io.h"
 #include "ws.h"
@@ -32,336 +39,308 @@
 #include "audio.h"
 #include "memory.h"
 
-SDL_Joystick *joystick=NULL;
 char        app_window_title[256];
 int         app_gameRunning=0;
 int         app_terminate=0;
 int         app_fullscreen=0;
-SDL_Event   app_input_event;
 int         app_rotated=0;
 
 
 int ws_key_esc = 0;
 
+/* Open GL stuffs */
+typedef struct GLWindow_t GLWindow;
+struct KeyArray
+{
+    uint8_t lastState;
+    uint8_t curState;
+    uint8_t debounced;
+    GLFWwindow *window;
+};
+struct GLWindow_t
+{
+    struct KeyArray keyArray[512];
+    GLFWwindow *windows;
+    uint8_t *videoMemory;
+    GLuint videoTexture;
+    int WIDTH;
+    int HEIGHT;
+};
+static GLWindow mainWindow;
+static int window_num = 0;
+static void ShowScreen(GLWindow *g, int w, int h)
+{
+    glBindTexture(GL_TEXTURE_RECTANGLE, g->videoTexture);
+
+    // glTexSubImage2D is faster when not using a texture range
+    glTexSubImage2D(GL_TEXTURE_RECTANGLE, 0, 0, 0, w, h,
+                    GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV, g->videoMemory);
+    glBegin(GL_QUADS);
+
+    glTexCoord2f(0.0f, 0.0f);
+    glVertex2f(-1.0f, 1.0f);
+
+    glTexCoord2f(0.0f, h);
+    glVertex2f(-1.0f, -1.0f);
+
+    glTexCoord2f(w, h);
+    glVertex2f(1.0f, -1.0f);
+
+    glTexCoord2f(w, 0.0f);
+    glVertex2f(1.0f, 1.0f);
+    glEnd();
+
+    glFlush();
+}
+static void GLWindowInitEx(GLWindow *g, int w, int h)
+{
+    g->WIDTH = w;
+    g->HEIGHT = h;
+    g->videoTexture = window_num++;
+}
+static void setupGL(GLWindow *g, int w, int h)
+{
+    g->videoMemory = (uint8_t *)malloc(w * h * sizeof(uint16_t));
+    memset(g->videoMemory, 0, w * h * sizeof(uint16_t));
+    //Tell OpenGL how to convert from coordinates to pixel values
+    glViewport(0, 0, w, h);
+
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+    glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+    glClearColor(1.0f, 0.f, 1.0f, 1.0f);
+    glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+
+    glDisable(GL_TEXTURE_2D);
+    glEnable(GL_TEXTURE_RECTANGLE);
+    glBindTexture(GL_TEXTURE_RECTANGLE, g->videoTexture);
+
+    //  glTextureRangeAPPLE(GL_TEXTURE_RECTANGLE_NV_EXT, 0, NULL);
+
+    //  glTexParameteri(GL_TEXTURE_RECTANGLE_NV_EXT, GL_TEXTURE_STORAGE_HINT_APPLE , GL_STORAGE_CACHED_APPLE);
+    //  glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE);
+    glTexParameteri(GL_TEXTURE_RECTANGLE, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+    glTexParameteri(GL_TEXTURE_RECTANGLE, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+    glTexParameteri(GL_TEXTURE_RECTANGLE, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+    glTexParameteri(GL_TEXTURE_RECTANGLE, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+
+    glTexImage2D(GL_TEXTURE_RECTANGLE, 0, GL_RGBA, w, h, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, g->videoMemory);
+
+    glDisable(GL_DEPTH_TEST);
+}
+void restoreGL(GLWindow *g)
+{
+    //Tell OpenGL how to convert from coordinates to pixel values
+    glViewport(0, 0, g->WIDTH, g->HEIGHT);
+
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+    glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+    glClearColor(1.0f, 0.f, 1.0f, 1.0f);
+    glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
+    glClear(GL_COLOR_BUFFER_BIT);
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+
+    glDisable(GL_TEXTURE_2D);
+    glEnable(GL_TEXTURE_RECTANGLE);
+    glDisable(GL_DEPTH_TEST);
+}
+static void kbHandler(GLFWwindow *window, int key, int scan, int action, int mod)
+{
+    struct KeyArray *keyArray;
+
+    keyArray = (struct KeyArray *)glfwGetWindowUserPointer(window);
+
+    keyArray[key].lastState = keyArray[key].curState;
+    if (action == GLFW_RELEASE)
+    {
+        keyArray[key].curState = GLFW_RELEASE;
+    }
+    else
+    {
+        keyArray[key].curState = GLFW_PRESS;
+    }
+    keyArray[key].debounced |= (keyArray[key].lastState == GLFW_RELEASE) && (keyArray[key].curState == GLFW_PRESS);
+    keyArray[key].window = window;
+    /*printf("key:%d, state:%d debounce:%d, laststate:%d\n", key, keyArray[key].curState,
+           keyArray[key].debounced, keyArray[key].lastState);*/
+}
+static void sizeHandler(GLFWwindow *window, int xs, int ys)
+{
+    glfwMakeContextCurrent(window);
+    glViewport(0, 0, xs, ys);
+    ShowScreen(&mainWindow, 244, 144);
+}
+static void error_callback(int error, const char *description)
+{
+    puts(description);
+}
+static void initDisplay(GLWindow *g)
+{
+    int h = g->HEIGHT;
+    int w = g->WIDTH;
+
+    /// Initialize GLFW
+    glfwInit();
+
+    glfwSetErrorCallback(error_callback);
+
+    // Open screen OpenGL window
+    if (!(g->windows = glfwCreateWindow(g->WIDTH, g->HEIGHT, "Main", NULL, NULL)))
+    {
+        glfwTerminate();
+        fprintf(stderr, "Window creation error...\n");
+        abort();
+    }
+
+    glfwSetWindowAspectRatio(g->windows, 244, 144);
+
+    glfwMakeContextCurrent(g->windows);
+    setupGL(g, g->WIDTH, g->HEIGHT);
+
+    glfwSwapInterval(1);            // We need vsync
+
+    glfwGetWindowSize(g->windows, &w, &h);
+
+    glfwSetWindowUserPointer(g->windows, g->keyArray);
+
+    glfwSetKeyCallback(g->windows, kbHandler);
+    glfwSetWindowSizeCallback(g->windows, sizeHandler);
+}
+static void clearScreen(GLWindow *g)
+{
+    memset(g->videoMemory, 0, sizeof(uint8_t) * g->WIDTH * g->HEIGHT * 4);
+}
+static void updateScreen(GLWindow *g)
+{
+    /* Update windows code */
+    glfwMakeContextCurrent(g->windows);
+    ShowScreen(g, g->WIDTH, g->HEIGHT);
+    glfwSwapBuffers(g->windows);
+    glfwPollEvents();
+}
+uint64_t getTicks()
+{
+    struct timeval curTime;
+    uint64_t ticks;
+    /* Get datetime */
+    gettimeofday(&curTime, NULL);
+
+    ticks = (curTime.tv_sec* 1000) + curTime.tv_usec / 1000;
+
+    return ticks;
+}
+
+static inline int getKeyState(int key)
+{
+    return mainWindow.keyArray[key].curState;
+}
 
 static void read_keys()
 {
-    static int testJoystick=1;
+    ws_key_start=0;
+    ws_key_x4=0;
+    ws_key_x2=0;
+    ws_key_x1=0;
+    ws_key_x3=0;
+    ws_key_y4=0;
+    ws_key_y2=0;
+    ws_key_y1=0;
+    ws_key_y3=0;
+    ws_key_button_a=0;
+    ws_key_button_b=0;
 
-    if (testJoystick==1)
-    {
-       testJoystick=0;
-       fprintf(log_get(),"%i joysticks were found.\n\n", SDL_NumJoysticks() );
-       fprintf(log_get(),"The names of the joysticks are:\n");
-
-       for(int tti=0; tti < SDL_NumJoysticks(); tti++ )
-       {
-          fprintf(log_get(),"    %s\n", SDL_JoystickName(tti));
-       }
-
-       SDL_JoystickEventState(SDL_ENABLE);
-       joystick = SDL_JoystickOpen(0);
-    }
-    else
-    {
-       if (joystick!=NULL)
-       {
-          SDL_JoystickClose(0);
-          SDL_JoystickEventState(SDL_ENABLE);
-          joystick = SDL_JoystickOpen(0);
-       }
-    }
-
-    while ( SDL_PollEvent(&app_input_event) )
-    {
-       if ( app_input_event.type == SDL_QUIT )
-       {
-          ws_key_esc = 1;
-       }
-    }
-
-    if (joystick)
-    {
-       if (SDL_JoystickGetButton(joystick,0))
-       {
-          ws_key_start=1;
-       }
-       else
-       {
-          ws_key_start=0;
-       }
-
-       if (SDL_JoystickGetButton(joystick,1))
-       {
-          ws_key_button_a=1;
-       }
-       else
-       {
-          ws_key_button_a=0;
-       }
-
-       if (SDL_JoystickGetButton(joystick,2))
-       {
-          ws_key_button_b=1;
-       }
-       else
-       {
-          ws_key_button_b=0;
-       }
-
-
-       if (SDL_JoystickGetAxis(joystick,0)<-7000)
-       {
-          ws_key_x4=1;
-       }
-       else
-       {
-          ws_key_x4=0;
-       }
-
-       if (SDL_JoystickGetAxis(joystick,0)>7000)
-       {
-          ws_key_x2=1;
-       }
-       else
-       {
-          ws_key_x2=0;
-       }
-
-       if (SDL_JoystickGetAxis(joystick,1)<-7000)
-       {
-          ws_key_x1=1;
-       }
-       else
-       {
-          ws_key_x1=0;
-       }
-
-       if (SDL_JoystickGetAxis(joystick,1)>7000)
-       {
-          ws_key_x3=1;
-       }
-       else
-       {
-          ws_key_x3=0;
-       }
-       ws_key_y4=0;
-       ws_key_y2=0;
-       ws_key_y1=0;
-       ws_key_y3=0;
-    }
-    else
-    {
-       ws_key_start=0;
-       ws_key_x4=0;
-       ws_key_x2=0;
-       ws_key_x1=0;
-       ws_key_x3=0;
-       ws_key_y4=0;
-       ws_key_y2=0;
-       ws_key_y1=0;
-       ws_key_y3=0;
-       ws_key_button_a=0;
-       ws_key_button_b=0;
-    }
-
-    uint8_t *keystate = SDL_GetKeyState(NULL);
-
-    if ( keystate[SDLK_e])
+    if (getKeyState(GLFW_KEY_E))
     {
        dump_memory();
     }
 
-    if ( keystate[SDLK_r])
+    if (getKeyState(GLFW_KEY_R))
     {
        printf("Boop\n");
        ws_reset();
     }
 
-    if ( keystate[SDLK_ESCAPE] )
+    if (getKeyState(GLFW_KEY_ESCAPE))
     {
        ws_key_esc = 1;
     }
 
-    if ( keystate[SDLK_UP] )
+    if ( getKeyState(GLFW_KEY_UP))
     {
        ws_key_x1=1;
     }
 
-    if ( keystate[SDLK_DOWN] )
+    if ( getKeyState(GLFW_KEY_DOWN))
     {
        ws_key_x3=1;
     }
 
-    if ( keystate[SDLK_RIGHT] )
+    if (getKeyState(GLFW_KEY_RIGHT))
     {
        ws_key_x2=1;
     }
 
-    if ( keystate[SDLK_LEFT] )
+    if (getKeyState(GLFW_KEY_LEFT))
     {
        ws_key_x4=1;
     }
 
-    if (keystate[SDLK_RETURN])
+    if (getKeyState(GLFW_KEY_ENTER))
     {
        ws_key_start=1;
     }
 
-    if (keystate[SDLK_c])
+    if (getKeyState(GLFW_KEY_C))
     {
        ws_key_button_a=1;
     }
 
-    if (keystate[SDLK_x])
+    if (getKeyState(GLFW_KEY_X))
     {
        ws_key_button_b=1;
     }
 
-    if (keystate[SDLK_w])
+    if (getKeyState(GLFW_KEY_W))
     {
        ws_key_y1=1;
     }
 
-    if (keystate[SDLK_a])
+    if (getKeyState(GLFW_KEY_A))
     {
        ws_key_y4=1;
     }
 
-    if (keystate[SDLK_s])
+    if (getKeyState(GLFW_KEY_S))
     {
        ws_key_y3=1;
     }
 
-    if (keystate[SDLK_d])
+    if (getKeyState(GLFW_KEY_D))
     {
        ws_key_y2=1;
     }
 
-    if (keystate[SDLK_o])
+    if (getKeyState(GLFW_KEY_O))
     {
        ws_cyclesByLine+=10;
     }
 
-    if (keystate[SDLK_l])
+    if (getKeyState(GLFW_KEY_L))
     {
        ws_cyclesByLine-=10;
     }
-
 }
 
-////////////////////////////////////////////////////////////////////////////////
-//
-////////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//
-////////////////////////////////////////////////////////////////////////////////
-static void ws_drawDoubledScanline(int16_t *vs, int16_t *backbuffer_alias)
-{
-    register int32_t *vs_alias = (int32_t *)vs;
-    register int32_t data;
-
-    for (int pixel = 0 ; pixel < 224 ; pixel += 8)
-    {
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-//
-////////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//
-////////////////////////////////////////////////////////////////////////////////
-static void ws_drawDoubledRotatedScanline(int16_t *vs, int16_t *backbuffer_alias)
-{
-    register int32_t *vs_alias = (int32_t *)vs;
-    register int32_t data;
-
-    for (int pixel = 0 ; pixel < 144 ; pixel += 8)
-    {
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-        data = *backbuffer_alias++;
-        data |= (data << 16);
-        *vs_alias++ = data;
-    }
-}
-////////////////////////////////////////////////////////////////////////////////
-//
-////////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//
-////////////////////////////////////////////////////////////////////////////////
-void ws_rotate_backbuffer(int16_t *backbuffer)
-{
-   static int16_t temp[224*144];
-   
-   memcpy(temp,backbuffer,224*144*2);
-
-   for (int line=0; line<144; line++)
-      for (int column=0; column<224; column++)
-      {
-         backbuffer[line+((223-column)<<7)+((223-column)<<4)]=temp[column+(line<<7)+(line<<6)+(line<<5)];
-      }
-}
 ////////////////////////////////////////////////////////////////////////////////
 //
 ////////////////////////////////////////////////////////////////////////////////
@@ -379,182 +358,67 @@ void ws_emulate(void)
     int i = 0;
 
     double dTime = 0.0, dNormalLast = 0.0, dTemp;
-    int32_t surfacePitch;
 
-// 15 bits RGB555
-    Format format(16, 0x007c00, 0x00003e0, 0x0000001f);
-    Console console;
-    Surface *surface;
+    // 15 bits RGB555
+    //Format format(16, 0x007c00, 0x00003e0, 0x0000001f);
+    GLWindowInitEx(&mainWindow, 224, 144);
+    initDisplay(&mainWindow);
+    clearScreen(&mainWindow);
+    updateScreen(&mainWindow);
+    int16_t  *backBuffer = (int16_t *)mainWindow.videoMemory;
 
-    if (app_rotated)
+
+    dNormalLast = (double)getTicks();
+
+    while (1)
     {
-        surface = new Surface(144 * 2, 224 * 2, format);
-        int16_t *backbuffer = (int16_t *)malloc(224 * 144 * sizeof(int16_t));
-        memset(backbuffer, 0x00, 224 * 144 * sizeof(int16_t));
-        surfacePitch = (surface->pitch() >> 1);
 
-        dNormalLast = (double)SDL_GetTicks();
+        dTemp = getTicks();
+        dTime = dTemp - dNormalLast;
 
-        console.open(app_window_title, 144 * 2, 224 * 2, format);
 
-        while (1)
+        nCount = (int32_t)(dTime * 0.07547); // does this calculation make sense?
+
+        if (nCount <= 0)
+        {
+            /* Sleep for 2ms */
+            usleep(2000);
+        } // No need to do anything for a bit
+        else
         {
 
-            dTemp = (double)SDL_GetTicks();
-            dTime = dTemp - dNormalLast;
+            dNormalLast += nCount * (1 / 0.07547);
 
-            nCount = (int32_t)(dTime * 0.07547); // does this calculation make sense?
-
-            if (nCount <= 0)
+            if (nCount > 10)
             {
-                SDL_Delay(2);
-            } // No need to do anything for a bit
-            else
-            {
-
-                dNormalLast += nCount * (1 / 0.07547);
-
-                if (nCount > 10)
-                {
-                    nCount = 10;
-                }
-
-                read_keys();
-
-                if (ws_key_esc)
-                {
-                    console.close();
-
-                    app_terminate = 1;
-
-                    if ((ws_rom_path != NULL) || (app_terminate))
-                    {
-                        break;
-                    }
-
-                    console.open(app_window_title, 144 * 2, 224 * 2, format);
-
-                }
-
-
-                for (i = 0 ; i < nCount - 1 ; i++)
-                {
-                    while (!ws_executeLine(backbuffer, 0))
-                    {
-                    }
-                }
-
-                while (!ws_executeLine(backbuffer, 1))
-                {
-                }
-
-
-                ws_rotate_backbuffer(backbuffer);
-
-                int16_t *vs = (int16_t *)surface->lock();
-                int16_t *backbuffer_alias = backbuffer;
-
-                for (int line = 0 ; line < 224 ; line++)
-                {
-                    ws_drawDoubledRotatedScanline(vs, backbuffer_alias);
-                    vs += surfacePitch;
-                    ws_drawDoubledRotatedScanline(vs, backbuffer_alias);
-                    vs += surfacePitch;
-                    backbuffer_alias += 144;
-                }
-
-                surface->unlock();
-                surface->copy(console);
-                console.update();
+                nCount = 10;
             }
-        }
 
-        console.close();
-        delete surface;
+            read_keys();
 
-    }
-    else
-    {
-        surface = new Surface(224 * 2, 144 * 2, format);
-        int16_t *backbuffer = (int16_t *)malloc(224 * 144 * sizeof(int16_t));
-        memset(backbuffer, 0x00, 224 * 144 * sizeof(int16_t));
-        surfacePitch = (surface->pitch() >> 1);
-
-        dNormalLast = (double)SDL_GetTicks();
-
-        console.open(app_window_title, 224 * 2, 144 * 2, format);
-
-        while (1)
-        {
-
-            dTemp = (double)SDL_GetTicks();
-            dTime = dTemp - dNormalLast;
-
-
-            nCount = (int32_t)(dTime * 0.07547); // does this calculation make sense?
-
-            if (nCount <= 0)
+            if (ws_key_esc)
             {
-                SDL_Delay(2);
-            } // No need to do anything for a bit
-            else
-            {
-                
-                dNormalLast += nCount * (1 / 0.07547);
+                app_terminate = 1;
 
-                if (nCount > 10)
+                if ((ws_rom_path != NULL) || (app_terminate))
                 {
-                    nCount = 10;
+                    break;
                 }
-
-                read_keys();
-
-                if (ws_key_esc)
-                {
-                    console.close();
-
-                    app_terminate = 1;
-
-                    if ((ws_rom_path != NULL) || (app_terminate))
-                    {
-                        break;
-                    }
-
-                    console.open(app_window_title, 224 * 2, 144 * 2, format);
-
-                }
-
-
-                for (i = 0 ; i < nCount - 1 ; i++)
-                {
-                    while (!ws_executeLine(backbuffer, 0))
-                    {
-                    }
-                }
-
-                while (!ws_executeLine(backbuffer, 1))
-                {
-                }
-
-                int16_t *vs = (int16_t *)surface->lock();
-                int16_t *backbuffer_alias = backbuffer;
-
-                for (int line = 0 ; line < 144 ; line++)
-                {
-                    ws_drawDoubledScanline(vs, backbuffer_alias);
-                    vs += surfacePitch;
-                    ws_drawDoubledScanline(vs, backbuffer_alias);
-                    vs += surfacePitch;
-                    backbuffer_alias += 224;
-                }
-
-                surface->unlock();
-                surface->copy(console);
-                console.update();
             }
-        }
 
-        console.close();
-        delete surface;
+
+            for (i = 0 ; i < nCount - 1 ; i++)
+            {
+                while (!ws_executeLine(backBuffer, 0))
+                {
+                }
+            }
+
+            while (!ws_executeLine(backBuffer, 1))
+            {
+            }
+
+            updateScreen(&mainWindow);
+        }
     }
 }

source/emulate.h

@@ -21,7 +21,6 @@ extern char		app_window_title[256];
 extern int			app_gameRunning;
 extern int			app_terminate;
 extern int			app_fullscreen;
-extern SDL_Event	app_input_event;
 extern int			app_rotated;
 
 

source/io.cpp

@@ -329,6 +329,7 @@ uint8_t cpu_readport(uint8_t port)
    int w1,w2;
    uint8_t retVal = 0;
 
+/*
    if (port > 0x100)
    {
       port &= 0xFF;
@@ -337,7 +338,7 @@ uint8_t cpu_readport(uint8_t port)
          return 0x00;
       }
    }
-
+*/
 
    switch (port)
    {
@@ -1046,6 +1047,7 @@ void cpu_writeport(uint32_t port,uint8_t value)
        }
        fflush(stdout);
    }
+    break;
 
    case 0xca:
       if(value==0x15)

source/memory.cpp

@@ -252,7 +252,7 @@ char *load_file(char *filename)
 
     fstat(fd, &FileStat);
 
-    printf("Trying to load %s, size = %lu...\n",filename, FileStat.st_size);
+    printf("Trying to load %s, size = %lu...\n",filename, (unsigned long)FileStat.st_size);
 
     ret_ptr = (char *)mmap(NULL, FileStat.st_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
 
@@ -284,7 +284,7 @@ char *create_file(char *filename, uint32_t size)
     char buf[] = { 0 };
 
     printf("Trying to create %s, size = %u...\n",filename, size);
-    fd = open(filename, O_CREAT | S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH | O_TRUNC);
+    fd = open(filename, O_CREAT | S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH | O_TRUNC, 0644);
     fchmod(fd, 0644);
     close(fd);
     sync();

source/nec/CMakeLists.txt

@@ -0,0 +1,4 @@
+set(SOURCES nec.cpp)
+set(HEADERS nec.h necea.h necinstr.h necintrf.h necmodrm.h)
+
+add_library(nec_v30 ${SOURCES} ${HEADERS})

source/nec/nec.cpp

@@ -3889,7 +3889,7 @@ void nec_set_reg(int regnum, uint32_t val)
    }
 }
 
-char *instructionsName[256] = 
+const char *instructionsName[256] =
 {
    "ADD ", "ADD ", "ADD ", "ADD ", "ADD ", "ADD ", "PUSH", "POP ", "OR  ", "OR  ", "OR  ", "OR  ", "OR  ", "OR  ", "PUSH", "----",
    "ADC ", "ADC ", "ADC ", "ADC ", "ADC ", "ADC ", "PUSH", "POP ", "SBB ", "SBB ", "SBB ", "SBB ", "SBB ", "SBB ", "PUSH", "POP ",

source/ws.cpp

@@ -191,6 +191,7 @@ int ws_executeLine(int16_t *framebuffer, int renderLine)
    // update scanline register
    ws_ioRam[2]=ws_gpu_scanline;
 
+   /* Why twice like that and random cycle count???? */
    ws_cycles=nec_execute((ws_cyclesByLine>>1)+(rand()&7));
    ws_cycles+=nec_execute((ws_cyclesByLine>>1)+(rand()&7));
 
@@ -459,7 +460,7 @@ int	ws_saveState(char *statepath)
       }
    }
 
-   int	fp=open(newPath, O_RDWR|O_CREAT);
+   int	fp=open(newPath, O_RDWR|O_CREAT, 0644);
    delete newPath;
 
    if (fp==-1)