Check if sed1376 clock is connected before reading or writing its addresses

Also start boot loader dumper

src/emulator.c

@@ -78,7 +78,7 @@ void emulatorInit(uint8_t* palmRomDump, uint16_t specialFeatures){
    palmMisc.batteryLevel = 100;
    
    //config
-   palmClockMultiplier = 1.0;//Overclock disabled
+   palmClockMultiplier = (specialFeatures & INACCURATE_FAST_CPU) ? 2.0 : 1.0;//Overclock disabled
    
    //start running
    m68k_pulse_reset();

src/emulator.h

@@ -41,13 +41,14 @@ typedef struct{
    uint8_t batteryLevel;
 }misc_hw_t;
 
-//special features, these make the emulator inaccurate in a good way, but still inaccurate and are therefore optional, they dont do anything yet
+//special features, these make the emulator inaccurate in a good way, but still inaccurate and are therefore optional
 #define ACCURATE                0x0000//no hacks/addons
 #define INACCURATE_RAM_HUGE     0x0001//128 mb ram
 #define INACCURATE_FAST_CPU     0x0002//doubles cpu speed
 #define INACCURATE_HYBRID_CPU   0x0004//allows running arm opcodes in an OS 4 enviroment
 #define INACCURATE_320x320      0x0008//creates a 320x320 frambuffer for hires mode, the 320x320 framebuffer is a transparent overlay over the 160x160 one and covers it where its pixels are enabled
 #define INACCURATE_SYNCED_RTC   0x0010//rtc always equals host system time
+#define INACCURATE_HLE_APIS     0x0020//memcpy, memcmp, wait on timer will be replaced with the hosts function
 
 //config options
 #define EMU_FPS 60.0

src/hardwareRegisters.c

@@ -658,6 +658,11 @@ int interruptAcknowledge(int intLevel){
    return vector;
 }
 
+bool sed1376ClockConnected(){
+   //this is the clock output pin for the sed1376, if its disabled so is the lcd controller
+   return !(registerArrayRead8(PFSEL) & 0x04);
+}
+
 
 unsigned int getHwRegister8(unsigned int address){
    switch(address){

src/hardwareRegisters.h

@@ -46,7 +46,8 @@ void clk32();//also checks all interrupts
 
 //cpu
 bool cpuIsOn();
-int interruptAcknowledge(int intLevel);
+int  interruptAcknowledge(int intLevel);
+bool sed1376ClockConnected();
 
 //config
 void resetHwRegisters();

src/memoryAccess.c

@@ -16,9 +16,9 @@ unsigned int  m68k_read_memory_8(unsigned int address){
       return palmRom[address - ROM_START_ADDRESS];
    else if(address >= REG_START_ADDRESS && address < REG_START_ADDRESS + REG_SIZE)
       return getHwRegister8(address - REG_START_ADDRESS);
-   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE)
+   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE && sed1376ClockConnected())
       return sed1376GetRegister(address - SED1376_REG_START_ADDRESS);
-   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE)
+   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE && sed1376ClockConnected())
       printf("Attempted 8 bit read on sed1376 framebuffer at 0x%08X.\n", address - SED1376_FB_START_ADDRESS);
    
    //printf("Invalid 8 bit read at 0x%08X.\n", address);
@@ -33,9 +33,9 @@ unsigned int  m68k_read_memory_16(unsigned int address){
       return palmRom[address - ROM_START_ADDRESS] << 8 | palmRom[address - ROM_START_ADDRESS + 1];
    else if(address >= REG_START_ADDRESS && address < REG_START_ADDRESS + REG_SIZE)
       return getHwRegister16(address - REG_START_ADDRESS);
-   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE)
+   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE && sed1376ClockConnected())
       return sed1376GetRegister(address - SED1376_REG_START_ADDRESS);
-   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE)
+   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE && sed1376ClockConnected())
       printf("Attempted 16 bit read on sed1376 framebuffer at 0x%08X.\n", address - SED1376_FB_START_ADDRESS);
    
    //printf("Invalid 16 bit read at 0x%08X.\n", address);
@@ -50,9 +50,9 @@ unsigned int  m68k_read_memory_32(unsigned int address){
       return palmRom[address - ROM_START_ADDRESS] << 24 | palmRom[address - ROM_START_ADDRESS + 1] << 16 | palmRom[address - ROM_START_ADDRESS + 2] << 8 | palmRom[address - ROM_START_ADDRESS + 3];
    else if(address >= REG_START_ADDRESS && address < REG_START_ADDRESS + REG_SIZE)
       return getHwRegister32(address - REG_START_ADDRESS);
-   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE)
+   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE && sed1376ClockConnected())
       return sed1376GetRegister(address - SED1376_REG_START_ADDRESS);
-   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE)
+   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE && sed1376ClockConnected())
       printf("Attempted 32 bit read on sed1376 framebuffer at 0x%08X.\n", address - SED1376_FB_START_ADDRESS);
    
    //printf("Invalid 32 bit read at 0x%08X.\n", address);
@@ -72,10 +72,10 @@ void m68k_write_memory_8(unsigned int address, unsigned int value){
    else if(address >= REG_START_ADDRESS && address < REG_START_ADDRESS + REG_SIZE){
       setHwRegister8(address - REG_START_ADDRESS, value);
    }
-   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE){
+   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE && sed1376ClockConnected()){
       sed1376SetRegister(address - SED1376_REG_START_ADDRESS, value);
    }
-   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE){
+   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE && sed1376ClockConnected()){
       printf("Attempted 8 bit write on sed1376 framebuffer at 0x%08X with value of 0x%02X.\n", address - SED1376_FB_START_ADDRESS, value);
    }
    else{
@@ -95,10 +95,10 @@ void m68k_write_memory_16(unsigned int address, unsigned int value){
    else if(address >= REG_START_ADDRESS && address < REG_START_ADDRESS + REG_SIZE){
       setHwRegister16(address - REG_START_ADDRESS, value);
    }
-   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE){
+   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE && sed1376ClockConnected()){
       sed1376SetRegister(address - SED1376_REG_START_ADDRESS, value & 0xFF);
    }
-   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE){
+   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE && sed1376ClockConnected()){
       printf("Attempted 16 bit write on sed1376 framebuffer at 0x%08X with value of 0x%04X.\n", address - SED1376_FB_START_ADDRESS, value);
    }
    else{
@@ -120,10 +120,10 @@ void m68k_write_memory_32(unsigned int address, unsigned int value){
    else if(address >= REG_START_ADDRESS && address < REG_START_ADDRESS + REG_SIZE){
       setHwRegister32(address - REG_START_ADDRESS, value);
    }
-   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE){
+   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE && sed1376ClockConnected()){
       sed1376SetRegister(address - SED1376_REG_START_ADDRESS, value & 0xFF);
    }
-   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE){
+   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE && sed1376ClockConnected()){
       printf("Attempted 32 bit write on sed1376 framebuffer at 0x%08X with value of 0x%08X.\n", address - SED1376_FB_START_ADDRESS, value);
    }
    else{
@@ -149,11 +149,11 @@ void m68k_write_memory_32_pd(unsigned int address, unsigned int value){
       //I dont know the interaction between the hw registers and the malformed opcode
       printf("Possibly fatal error: Predecrement swaped 32bit write to hw register: 0x%08X, at PC: 0x%08X\n", address, m68k_get_reg(NULL, M68K_REG_PC));
    }
-   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE){
+   else if(address >= SED1376_REG_START_ADDRESS && address < SED1376_REG_START_ADDRESS + SED1376_REG_SIZE && sed1376ClockConnected()){
       //I dont know the interaction between sed1376 registers and the malformed opcode
       printf("Predecrement swapped 32 bit write at sed1376 register 0x%08X with value of 0x%08X.\n", address - SED1376_REG_START_ADDRESS, value);
    }
-   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE){
+   else if(address >= SED1376_FB_START_ADDRESS && address < SED1376_FB_START_ADDRESS + SED1376_FB_SIZE && sed1376ClockConnected()){
       printf("Attempted 32 bit predecrement swapped write on sed1376 framebuffer at 0x%08X with value of 0x%08X.\n", address - SED1376_FB_START_ADDRESS, value);
    }
    else{

tests/hardwareTests/bootloaderExtractor/Makefile

@@ -0,0 +1,48 @@
+APPNAME = BootExtract
+ICONTEXT = "VZBootEX"
+APPID = Bdmp
+
+SRCS = bootloaderExtractor.c
+
+# Tool locations
+CC = m68k-palmos-gcc -palmos3.5
+BUILDPRC = build-prc
+PILRC = pilrc
+OBJRES = m68k-palmos-obj-res
+
+# File names
+RESFILE = $(APPNAME).rcp
+PRC = ../$(APPNAME).prc
+OBJS = $(SRCS:.c=.o)
+
+# Compile options
+DEFINES = -DHW_TEST
+CSFLAGS = -O2 -S $(DEFINES) $(INCLUDES)
+CFLAGS = -O2 -g $(DEFINES) $(INCLUDES)
+
+# Makefile targets
+
+all: 
+
+.S.o:
+	$(CC) $(TARGETFLAGS) -c $<
+
+.c.s:
+	$(CC) $(CSFLAGS) $<
+
+$(PRC): code.stamp bin.stamp
+	$(BUILDPRC) $@ $(ICONTEXT) $(APPID) *.grc *.bin
+
+code.stamp: $(APPNAME)
+	$(OBJRES) $(APPNAME)
+	touch code.stamp
+
+bin.stamp: $(RESFILE)
+	$(PILRC) $(RESFILE)
+	touch bin.stamp
+
+$(APPNAME): $(OBJS)
+	$(CC) $(CFLAGS) $(OBJS) $(LIBS) -o $@
+
+clean::
+	rm -rf *.[oa] $(APPNAME) *.bin *.stamp *.grc *~

tests/hardwareTests/bootloaderExtractor/bootloaderExtractor.c

@@ -0,0 +1,71 @@
+#include <PalmOS.h>
+//#include <PalmCompatibility.h>
+//#include <System/DLServer.h>
+
+
+static Boolean StartApplication(void);
+static void    EventLoop(void);
+
+
+static Boolean MyHandleEvent(EventType* event){
+   
+   return false;
+}
+
+
+/////////////////////////
+// EventLoop
+/////////////////////////
+
+static void EventLoop(void){
+  EventType event;
+  Word      error;
+
+  do{
+     EvtGetEvent(&event, 1);
+     
+     if(!SysHandleEvent(&event)){
+        if(!MenuHandleEvent(0, &event, &error)){
+           if(!MyHandleEvent(&event)){
+              FrmDispatchEvent(&event);
+           }
+        }
+     }
+
+  }
+  while(event.eType != appStopEvent);
+}
+
+/************************************************************/
+/** global init and cleanup                                 */
+static Boolean StartApplication(void) {
+
+  /* Mask hardware keys */
+  KeySetMask(~(keyBitPageUp | keyBitPageDown | 
+	       keyBitHard1  | keyBitHard2 | 
+	       keyBitHard3  | keyBitHard4 ));
+
+  SysRandom(TimGetTicks());
+
+  return true;
+}
+
+static void StopApplication(void){
+
+   
+}
+
+/////////////////////////
+// PilotMain
+/////////////////////////
+
+DWord PilotMain(Word cmd, Ptr cmdBPB, Word launchFlags){
+  if (cmd == sysAppLaunchCmdNormalLaunch){
+    if(StartApplication()){
+      EventLoop();
+      StopApplication();
+    }
+  }
+  return(0);
+}
+