]> Shamusworld >> Repos - virtualjaguar/blobdiff - src/jerry.cpp
Fixed fullscreen<-->windowed mode swith in OpenGL mode, phase one of
[virtualjaguar] / src / jerry.cpp
index 10b11a2a839429af9de02a5933cc109bab215a41..eef8d0152af60c3f9bfd6469c41007917f5771f3 100644 (file)
 //     F1DE00          R     xxxxxxxx xxxxxxxx   ROM_NOISE - white noise
 //     ------------------------------------------------------------
 
-//#include <math.h>
-#include "wavetable.h"
 #include "jerry.h"
 
+#include <string.h>                                                            // For memcpy
+//#include <math.h>
+#include "jaguar.h"
+#include "wavetable.h"
+#include "clock.h"
+#include "dsp.h"
+#include "dac.h"
+#include "joystick.h"
+#include "eeprom.h"
+#include "log.h"
+#include "cdrom.h"
+
+//Note that 44100 Hz requires samples every 22.675737 usec.
+#define NEW_TIMER_SYSTEM
 //#define JERRY_DEBUG
 
-/*static*/ uint8 * jerry_ram_8;
+/*static*/ uint8 jerry_ram_8[0x10000];
 
 //#define JERRY_CONFIG 0x4002                                          // ??? What's this ???
 
 uint8 analog_x, analog_y;
 
-static uint32 jerry_timer_1_prescaler;
-static uint32 jerry_timer_2_prescaler;
-static uint32 jerry_timer_1_divider;
-static uint32 jerry_timer_2_divider;
+static uint32 JERRYPIT1Prescaler;
+static uint32 JERRYPIT1Divider;
+static uint32 JERRYPIT2Prescaler;
+static uint32 JERRYPIT2Divider;
 static int32 jerry_timer_1_counter;
 static int32 jerry_timer_2_counter;
 
@@ -168,11 +180,25 @@ static int32 jerry_i2s_interrupt_timer = -1;
 uint32 jerryI2SCycles;
 uint32 jerryIntPending;
 
+// Private function prototypes
+
+void JERRYResetPIT1(void);
+void JERRYResetPIT2(void);
+void JERRYResetI2S(void);
+
+void JERRYPIT1Callback(void);
+void JERRYPIT2Callback(void);
+void JERRYI2SCallback(void);
+
 //This approach is probably wrong, since the timer is continuously counting down, though
 //it might only be a problem if the # of interrupts generated is greater than 1--the M68K's
 //timeslice should be running during that phase... (The DSP needs to be aware of this!)
+
+//This is only used by the old system, so once the new timer system is working this
+//should be safe to nuke.
 void jerry_i2s_exec(uint32 cycles)
 {
+#ifndef NEW_TIMER_SYSTEM
        extern uint16 serialMode;                                               // From DAC.CPP
        if (serialMode & 0x01)                                                  // INTERNAL flag (JERRY is master)
        {
@@ -224,9 +250,41 @@ void jerry_i2s_exec(uint32 cycles)
                        jerry_i2s_interrupt_timer += 602;
                }
        }
+#else
+       RemoveCallback(JERRYI2SCallback);
+       JERRYI2SCallback();
+#endif
 }
 
-void jerry_reset_i2s_timer(void)
+//NOTE: This is only used by the old execution core. Safe to nuke once it's stable.
+void JERRYExecPIT(uint32 cycles)
+{
+//This is wrong too: Counters are *always* spinning! !!! FIX !!! [DONE]
+//     if (jerry_timer_1_counter)
+               jerry_timer_1_counter -= cycles;
+
+       if (jerry_timer_1_counter <= 0)
+       {
+//Also, it can generate a CPU interrupt as well... !!! FIX !!! or does it? Maybe it goes Timer->GPU->CPU?
+               DSPSetIRQLine(DSPIRQ_TIMER0, ASSERT_LINE);      // This does the 'IRQ enabled' checking...
+//             JERRYResetPIT1();
+               jerry_timer_1_counter += (JERRYPIT1Prescaler + 1) * (JERRYPIT1Divider + 1);
+       }
+
+//This is wrong too: Counters are *always* spinning! !!! FIX !!! [DONE]
+//     if (jerry_timer_2_counter)
+               jerry_timer_2_counter -= cycles;
+
+       if (jerry_timer_2_counter <= 0)
+       {
+//Also, it can generate a CPU interrupt as well... !!! FIX !!! or does it? Maybe it goes Timer->GPU->CPU?
+               DSPSetIRQLine(DSPIRQ_TIMER1, ASSERT_LINE);      // This does the 'IRQ enabled' checking...
+//             JERRYResetPIT2();
+               jerry_timer_2_counter += (JERRYPIT2Prescaler + 1) * (JERRYPIT2Divider + 1);
+       }
+}
+
+void JERRYResetI2S(void)
 {
        //WriteLog("i2s: reseting\n");
 //This is really SCLK... !!! FIX !!!
@@ -234,85 +292,156 @@ void jerry_reset_i2s_timer(void)
        jerry_i2s_interrupt_timer = -1;
 }
 
-void jerry_reset_timer_1(void)
+void JERRYResetPIT1(void)
 {
-/*     if (!jerry_timer_1_prescaler || !jerry_timer_1_divider)
+#ifndef NEW_TIMER_SYSTEM
+/*     if (!JERRYPIT1Prescaler || !JERRYPIT1Divider)
                jerry_timer_1_counter = 0;
        else//*/
 //Small problem with this approach: Overflow if both are = $FFFF. !!! FIX !!!
-               jerry_timer_1_counter = (jerry_timer_1_prescaler + 1) * (jerry_timer_1_divider + 1);
+               jerry_timer_1_counter = (JERRYPIT1Prescaler + 1) * (JERRYPIT1Divider + 1);
 
 //     if (jerry_timer_1_counter)
 //             WriteLog("jerry: reseting timer 1 to 0x%.8x (%i)\n",jerry_timer_1_counter,jerry_timer_1_counter);
+
+#else
+       RemoveCallback(JERRYPIT1Callback);
+
+       if (JERRYPIT1Prescaler | JERRYPIT1Divider)
+       {
+               double usecs = (float)(JERRYPIT1Prescaler + 1) * (float)(JERRYPIT1Divider + 1) * RISC_CYCLE_IN_USEC;
+               SetCallbackTime(JERRYPIT1Callback, usecs);
+       }
+#endif
 }
 
-void jerry_reset_timer_2(void)
+void JERRYResetPIT2(void)
 {
-/*     if (!jerry_timer_2_prescaler || !jerry_timer_2_divider)
+#ifndef NEW_TIMER_SYSTEM
+/*     if (!JERRYPIT2Prescaler || !JERRYPIT2Divider)
        {
                jerry_timer_2_counter = 0;
                return;
        }
        else//*/
-               jerry_timer_2_counter = (jerry_timer_2_prescaler + 1) * (jerry_timer_2_divider + 1);
+               jerry_timer_2_counter = (JERRYPIT2Prescaler + 1) * (JERRYPIT2Divider + 1);
 
 //     if (jerry_timer_2_counter)
 //             WriteLog("jerry: reseting timer 2 to 0x%.8x (%i)\n",jerry_timer_2_counter,jerry_timer_2_counter);
+
+#else
+       RemoveCallback(JERRYPIT2Callback);
+
+       if (JERRYPIT1Prescaler | JERRYPIT1Divider)
+       {
+               double usecs = (float)(JERRYPIT2Prescaler + 1) * (float)(JERRYPIT2Divider + 1) * RISC_CYCLE_IN_USEC;
+               SetCallbackTime(JERRYPIT2Callback, usecs);
+       }
+#endif
 }
 
-void JERRYExecPIT(uint32 cycles)
+void JERRYPIT1Callback(void)
 {
-//This is wrong too: Counters are *always* spinning! !!! FIX !!! [DONE]
-//     if (jerry_timer_1_counter)
-               jerry_timer_1_counter -= cycles;
+       DSPSetIRQLine(DSPIRQ_TIMER0, ASSERT_LINE);      // This does the 'IRQ enabled' checking...
+       JERRYResetPIT1();
+}
 
-       if (jerry_timer_1_counter <= 0)
+void JERRYPIT2Callback(void)
+{
+       DSPSetIRQLine(DSPIRQ_TIMER1, ASSERT_LINE);      // This does the 'IRQ enabled' checking...
+       JERRYResetPIT2();
+}
+
+void JERRYI2SCallback(void)
+{
+       // Why is it called this? Instead of SCLK? Shouldn't this be read from DAC.CPP???
+//Yes, it should. !!! FIX !!!
+#warning Yes, it should. !!! FIX !!!
+       jerry_i2s_interrupt_divide &= 0xFF;
+       // We don't have to divide the RISC clock rate by this--the reason is a bit
+       // convoluted. Will put explanation here later...
+// What's needed here is to find the ratio of the frequency to the number of clock cycles
+// in one second. For example, if the sample rate is 44100, we divide the clock rate by
+// this: 26590906 / 44100 = 602 cycles.
+// Which means, every 602 cycles that go by we have to generate an interrupt.
+       jerryI2SCycles = 32 * (2 * (jerry_i2s_interrupt_divide + 1));
+
+//This should be in this file with an extern reference in the header file so that
+//DAC.CPP can see it... !!! FIX !!!
+       extern uint16 serialMode;                                               // From DAC.CPP
+
+       if (serialMode & 0x01)                                                  // INTERNAL flag (JERRY is master)
        {
-//Also, it can generate a CPU interrupt as well... !!! FIX !!! or does it? Maybe it goes Timer->GPU->CPU?
-               DSPSetIRQLine(DSPIRQ_TIMER0, ASSERT_LINE);      // This does the 'IRQ enabled' checking...
-//             jerry_reset_timer_1();
-               jerry_timer_1_counter += (jerry_timer_1_prescaler + 1) * (jerry_timer_1_divider + 1);
+               DSPSetIRQLine(DSPIRQ_SSI, ASSERT_LINE);         // This does the 'IRQ enabled' checking...
+               double usecs = (float)jerryI2SCycles * RISC_CYCLE_IN_USEC;
+               SetCallbackTime(JERRYI2SCallback, usecs);
        }
+       else                                                                                    // JERRY is slave to external word clock
+       {
+//Note that 44100 Hz requires samples every 22.675737 usec.
+//When JERRY is slave to the word clock, we need to do interrupts either at 44.1K
+//sample rate or at a 88.2K sample rate (11.332... usec).
+/*             // This is just a temporary kludge to see if the CD bus mastering works
+               // I.e., this is totally faked...!
+// The whole interrupt system is pretty much borked and is need of an overhaul.
+// What we need is a way of handling these interrupts when they happen instead of
+// scanline boundaries the way it is now.
+               jerry_i2s_interrupt_timer -= cycles;
+               if (jerry_i2s_interrupt_timer <= 0)
+               {
+//This is probably wrong as well (i.e., need to check enable lines)... !!! FIX !!! [DONE]
+                       if (ButchIsReadyToSend())//Not sure this is right spot to check...
+                       {
+//     return GetWordFromButchSSI(offset, who);
+                               SetSSIWordsXmittedFromButch();
+                               DSPSetIRQLine(DSPIRQ_SSI, ASSERT_LINE);
+                       }
+                       jerry_i2s_interrupt_timer += 602;
+               }*/
 
-//This is wrong too: Counters are *always* spinning! !!! FIX !!! [DONE]
-//     if (jerry_timer_2_counter)
-               jerry_timer_2_counter -= cycles;
+               if (ButchIsReadyToSend())//Not sure this is right spot to check...
+               {
+//     return GetWordFromButchSSI(offset, who);
+                       SetSSIWordsXmittedFromButch();
+                       DSPSetIRQLine(DSPIRQ_SSI, ASSERT_LINE);
+               }
 
-       if (jerry_timer_2_counter <= 0)
-       {
-//Also, it can generate a CPU interrupt as well... !!! FIX !!! or does it? Maybe it goes Timer->GPU->CPU?
-               DSPSetIRQLine(DSPIRQ_TIMER1, ASSERT_LINE);      // This does the 'IRQ enabled' checking...
-//             jerry_reset_timer_2();
-               jerry_timer_2_counter += (jerry_timer_2_prescaler + 1) * (jerry_timer_2_divider + 1);
+               SetCallbackTime(JERRYI2SCallback, 22.675737);
        }
 }
 
+
 void jerry_init(void)
 {
 //     clock_init();
-       anajoy_init();
-       joystick_init();
+//     anajoy_init();
+       JoystickInit();
        DACInit();
 //This should be handled with the cart initialization...
 //     eeprom_init();
-       memory_malloc_secure((void **)&jerry_ram_8, 0x10000, "JERRY RAM/ROM");
+//     memory_malloc_secure((void **)&jerry_ram_8, 0x10000, "JERRY RAM/ROM");
        memcpy(&jerry_ram_8[0xD000], wave_table, 0x1000);
+
+       JERRYPIT1Prescaler = 0xFFFF;
+       JERRYPIT2Prescaler = 0xFFFF;
+       JERRYPIT1Divider = 0xFFFF;
+       JERRYPIT2Divider = 0xFFFF;
 }
 
 void jerry_reset(void)
 {
 //     clock_reset();
-       anajoy_reset();
-       joystick_reset();
+//     anajoy_reset();
+       JoystickReset();
        eeprom_reset();
-       jerry_reset_i2s_timer();
+       JERRYResetI2S();
        DACReset();
 
        memset(jerry_ram_8, 0x00, 0xD000);              // Don't clear out the Wavetable ROM...!
-       jerry_timer_1_prescaler = 0xFFFF;
-       jerry_timer_2_prescaler = 0xFFFF;
-       jerry_timer_1_divider = 0xFFFF;
-       jerry_timer_2_divider = 0xFFFF;
+       JERRYPIT1Prescaler = 0xFFFF;
+       JERRYPIT2Prescaler = 0xFFFF;
+       JERRYPIT1Divider = 0xFFFF;
+       JERRYPIT2Divider = 0xFFFF;
        jerry_timer_1_counter = 0;
        jerry_timer_2_counter = 0;
 }
@@ -320,17 +449,17 @@ void jerry_reset(void)
 void jerry_done(void)
 {
        WriteLog("JERRY: M68K Interrupt control ($F10020) = %04X\n", GET16(jerry_ram_8, 0x20));
-       memory_free(jerry_ram_8);
+//     memory_free(jerry_ram_8);
 //     clock_done();
-       anajoy_done();
-       joystick_done();
+//     anajoy_done();
+       JoystickDone();
        DACDone();
        eeprom_done();
 }
 
 bool JERRYIRQEnabled(int irq)
 {
-       // Read the word @ $F10020 
+       // Read the word @ $F10020
        return jerry_ram_8[0x21] & (1 << irq);
 }
 
@@ -363,51 +492,58 @@ uint8 JERRYReadByte(uint32 offset, uint32 who/*=UNKNOWN*/)
 //     else if (offset >= 0xF10000 && offset <= 0xF10007)
 //This is still wrong. What needs to be returned here are the values being counted down
 //in the jerry_timer_n_counter variables... !!! FIX !!! [DONE]
+
+//This is probably the problem with the new timer code... This is invalid
+//under the new system... !!! FIX !!!
        else if ((offset >= 0xF10036) && (offset <= 0xF1003D))
        {
-//             jerry_timer_1_counter = (jerry_timer_1_prescaler + 1) * (jerry_timer_1_divider + 1);
-               uint32 counter1Hi = (jerry_timer_1_counter / (jerry_timer_1_divider + 1)) - 1;
-               uint32 counter1Lo = (jerry_timer_1_counter % (jerry_timer_1_divider + 1)) - 1;
-               uint32 counter2Hi = (jerry_timer_2_counter / (jerry_timer_2_divider + 1)) - 1;
-               uint32 counter2Lo = (jerry_timer_2_counter % (jerry_timer_2_divider + 1)) - 1;
+#ifndef NEW_TIMER_SYSTEM
+//             jerry_timer_1_counter = (JERRYPIT1Prescaler + 1) * (JERRYPIT1Divider + 1);
+               uint32 counter1Hi = (jerry_timer_1_counter / (JERRYPIT1Divider + 1)) - 1;
+               uint32 counter1Lo = (jerry_timer_1_counter % (JERRYPIT1Divider + 1)) - 1;
+               uint32 counter2Hi = (jerry_timer_2_counter / (JERRYPIT2Divider + 1)) - 1;
+               uint32 counter2Lo = (jerry_timer_2_counter % (JERRYPIT2Divider + 1)) - 1;
 
                switch(offset & 0x0F)
                {
                case 6:
-//                     return jerry_timer_1_prescaler >> 8;
+//                     return JERRYPIT1Prescaler >> 8;
                        return counter1Hi >> 8;
                case 7:
-//                     return jerry_timer_1_prescaler & 0xFF;
+//                     return JERRYPIT1Prescaler & 0xFF;
                        return counter1Hi & 0xFF;
                case 8:
-//                     return jerry_timer_1_divider >> 8;
+//                     return JERRYPIT1Divider >> 8;
                        return counter1Lo >> 8;
                case 9:
-//                     return jerry_timer_1_divider & 0xFF;
+//                     return JERRYPIT1Divider & 0xFF;
                        return counter1Lo & 0xFF;
                case 10:
-//                     return jerry_timer_2_prescaler >> 8;
+//                     return JERRYPIT2Prescaler >> 8;
                        return counter2Hi >> 8;
                case 11:
-//                     return jerry_timer_2_prescaler & 0xFF;
+//                     return JERRYPIT2Prescaler & 0xFF;
                        return counter2Hi & 0xFF;
                case 12:
-//                     return jerry_timer_2_divider >> 8;
+//                     return JERRYPIT2Divider >> 8;
                        return counter2Lo >> 8;
                case 13:
-//                     return jerry_timer_2_divider & 0xFF;
+//                     return JERRYPIT2Divider & 0xFF;
                        return counter2Lo & 0xFF;
                }
+#else
+WriteLog("JERRY: Unhandled timer read (BYTE) at %08X...\n", offset);
+#endif
        }
 //     else if (offset >= 0xF10010 && offset <= 0xF10015)
 //             return clock_byte_read(offset);
-       else if (offset >= 0xF17C00 && offset <= 0xF17C01)
-               return anajoy_byte_read(offset);
+//     else if (offset >= 0xF17C00 && offset <= 0xF17C01)
+//             return anajoy_byte_read(offset);
        else if (offset >= 0xF14000 && offset <= 0xF14003)
-               return joystick_byte_read(offset) | eeprom_byte_read(offset);
+               return JoystickReadByte(offset) | eeprom_byte_read(offset);
        else if (offset >= 0xF14000 && offset <= 0xF1A0FF)
                return eeprom_byte_read(offset);
-       
+
        return jerry_ram_8[offset & 0xFFFF];
 }
 
@@ -437,39 +573,43 @@ uint16 JERRYReadWord(uint32 offset, uint32 who/*=UNKNOWN*/)
 //in the jerry_timer_n_counter variables... !!! FIX !!! [DONE]
        else if ((offset >= 0xF10036) && (offset <= 0xF1003D))
        {
-//             jerry_timer_1_counter = (jerry_timer_1_prescaler + 1) * (jerry_timer_1_divider + 1);
-               uint32 counter1Hi = (jerry_timer_1_counter / (jerry_timer_1_divider + 1)) - 1;
-               uint32 counter1Lo = (jerry_timer_1_counter % (jerry_timer_1_divider + 1)) - 1;
-               uint32 counter2Hi = (jerry_timer_2_counter / (jerry_timer_2_divider + 1)) - 1;
-               uint32 counter2Lo = (jerry_timer_2_counter % (jerry_timer_2_divider + 1)) - 1;
+#ifndef NEW_TIMER_SYSTEM
+//             jerry_timer_1_counter = (JERRYPIT1Prescaler + 1) * (JERRYPIT1Divider + 1);
+               uint32 counter1Hi = (jerry_timer_1_counter / (JERRYPIT1Divider + 1)) - 1;
+               uint32 counter1Lo = (jerry_timer_1_counter % (JERRYPIT1Divider + 1)) - 1;
+               uint32 counter2Hi = (jerry_timer_2_counter / (JERRYPIT2Divider + 1)) - 1;
+               uint32 counter2Lo = (jerry_timer_2_counter % (JERRYPIT2Divider + 1)) - 1;
 
                switch(offset & 0x0F)
                {
                case 6:
-//                     return jerry_timer_1_prescaler;
+//                     return JERRYPIT1Prescaler;
                        return counter1Hi;
                case 8:
-//                     return jerry_timer_1_divider;
+//                     return JERRYPIT1Divider;
                        return counter1Lo;
                case 10:
-//                     return jerry_timer_2_prescaler;
+//                     return JERRYPIT2Prescaler;
                        return counter2Hi;
                case 12:
-//                     return jerry_timer_2_divider;
+//                     return JERRYPIT2Divider;
                        return counter2Lo;
                }
                // Unaligned word reads???
+#else
+WriteLog("JERRY: Unhandled timer read (WORD) at %08X...\n", offset);
+#endif
        }
 //     else if ((offset >= 0xF10010) && (offset <= 0xF10015))
 //             return clock_word_read(offset);
        else if (offset == 0xF10020)
                return jerryIntPending;
-       else if ((offset >= 0xF17C00) && (offset <= 0xF17C01))
-               return anajoy_word_read(offset);
+//     else if ((offset >= 0xF17C00) && (offset <= 0xF17C01))
+//             return anajoy_word_read(offset);
        else if (offset == 0xF14000)
-               return (joystick_word_read(offset) & 0xFFFE) | eeprom_word_read(offset);
+               return (JoystickReadWord(offset) & 0xFFFE) | eeprom_word_read(offset);
        else if ((offset >= 0xF14002) && (offset < 0xF14003))
-               return joystick_word_read(offset);
+               return JoystickReadWord(offset);
        else if ((offset >= 0xF14000) && (offset <= 0xF1A0FF))
                return eeprom_word_read(offset);
 
@@ -499,6 +639,7 @@ void JERRYWriteByte(uint32 offset, uint8 data, uint32 who/*=UNKNOWN*/)
                return;
        }
        // SCLK ($F1A150--8 bits wide)
+//NOTE: This should be taken care of in DAC...
        else if ((offset >= 0xF1A152) && (offset <= 0xF1A153))
        {
 //             WriteLog("JERRY: Writing %02X to SCLK...\n", data);
@@ -508,51 +649,60 @@ void JERRYWriteByte(uint32 offset, uint8 data, uint32 who/*=UNKNOWN*/)
                        jerry_i2s_interrupt_divide = (jerry_i2s_interrupt_divide & 0xFF00) | (uint32)data;
 
                jerry_i2s_interrupt_timer = -1;
+#ifndef NEW_TIMER_SYSTEM
                jerry_i2s_exec(0);
+#else
+               RemoveCallback(JERRYI2SCallback);
+               JERRYI2SCallback();
+#endif
 //             return;
        }
        // LTXD/RTXD/SCLK/SMODE $F1A148/4C/50/54 (really 16-bit registers...)
        else if (offset >= 0xF1A148 && offset <= 0xF1A157)
-       { 
+       {
                DACWriteByte(offset, data, who);
-               return; 
+               return;
        }
        else if (offset >= 0xF10000 && offset <= 0xF10007)
        {
+#ifndef NEW_TIMER_SYSTEM
                switch (offset & 0x07)
                {
                case 0:
-                       jerry_timer_1_prescaler = (jerry_timer_1_prescaler & 0x00FF) | (data << 8);
-                       jerry_reset_timer_1();
+                       JERRYPIT1Prescaler = (JERRYPIT1Prescaler & 0x00FF) | (data << 8);
+                       JERRYResetPIT1();
                        break;
                case 1:
-                       jerry_timer_1_prescaler = (jerry_timer_1_prescaler & 0xFF00) | data;
-                       jerry_reset_timer_1();
+                       JERRYPIT1Prescaler = (JERRYPIT1Prescaler & 0xFF00) | data;
+                       JERRYResetPIT1();
                        break;
                case 2:
-                       jerry_timer_1_divider = (jerry_timer_1_divider & 0x00FF) | (data << 8);
-                       jerry_reset_timer_1();
+                       JERRYPIT1Divider = (JERRYPIT1Divider & 0x00FF) | (data << 8);
+                       JERRYResetPIT1();
                        break;
                case 3:
-                       jerry_timer_1_divider = (jerry_timer_1_divider & 0xFF00) | data;
-                       jerry_reset_timer_1();
+                       JERRYPIT1Divider = (JERRYPIT1Divider & 0xFF00) | data;
+                       JERRYResetPIT1();
                        break;
                case 4:
-                       jerry_timer_2_prescaler = (jerry_timer_2_prescaler & 0x00FF) | (data << 8);
-                       jerry_reset_timer_2();
+                       JERRYPIT2Prescaler = (JERRYPIT2Prescaler & 0x00FF) | (data << 8);
+                       JERRYResetPIT2();
                        break;
                case 5:
-                       jerry_timer_2_prescaler = (jerry_timer_2_prescaler & 0xFF00) | data;
-                       jerry_reset_timer_2();
+                       JERRYPIT2Prescaler = (JERRYPIT2Prescaler & 0xFF00) | data;
+                       JERRYResetPIT2();
                        break;
                case 6:
-                       jerry_timer_2_divider = (jerry_timer_2_divider & 0x00FF) | (data << 8);
-                       jerry_reset_timer_2();
+                       JERRYPIT2Divider = (JERRYPIT2Divider & 0x00FF) | (data << 8);
+                       JERRYResetPIT2();
                        break;
                case 7:
-                       jerry_timer_2_divider = (jerry_timer_2_divider & 0xFF00) | data;
-                       jerry_reset_timer_2();
+                       JERRYPIT2Divider = (JERRYPIT2Divider & 0xFF00) | data;
+                       JERRYResetPIT2();
                }
+#else
+WriteLog("JERRY: Unhandled timer write (BYTE) at %08X...\n", offset);
+#endif
                return;
        }
 /*     else if ((offset >= 0xF10010) && (offset <= 0xF10015))
@@ -565,14 +715,14 @@ void JERRYWriteByte(uint32 offset, uint8 data, uint32 who/*=UNKNOWN*/)
        {
 WriteLog("JERRY: (68K int en/lat - Unhandled!) Tried to write $%02X to $%08X!\n", data, offset);
        }
-       else if ((offset >= 0xF17C00) && (offset <= 0xF17C01))
+/*     else if ((offset >= 0xF17C00) && (offset <= 0xF17C01))
        {
                anajoy_byte_write(offset, data);
                return;
-       }
+       }*/
        else if ((offset >= 0xF14000) && (offset <= 0xF14003))
        {
-               joystick_byte_write(offset, data);
+               JoystickWriteByte(offset, data);
                eeprom_byte_write(offset, data);
                return;
        }
@@ -608,44 +758,55 @@ void JERRYWriteWord(uint32 offset, uint16 data, uint32 who/*=UNKNOWN*/)
                DSPWriteWord(offset, data, who);
                return;
        }
+//NOTE: This should be taken care of in DAC...
        else if (offset == 0xF1A152)                                    // Bottom half of SCLK ($F1A150)
        {
                WriteLog("JERRY: Writing %04X to SCLK (by %s)...\n", data, whoName[who]);
 //This should *only* be enabled when SMODE has its INTERNAL bit set! !!! FIX !!!
                jerry_i2s_interrupt_divide = (uint8)data;
                jerry_i2s_interrupt_timer = -1;
+#ifndef NEW_TIMER_SYSTEM
                jerry_i2s_exec(0);
+#else
+               RemoveCallback(JERRYI2SCallback);
+               JERRYI2SCallback();
+#endif
 
                DACWriteWord(offset, data, who);
-               return; 
+               return;
        }
        // LTXD/RTXD/SCLK/SMODE $F1A148/4C/50/54 (really 16-bit registers...)
        else if (offset >= 0xF1A148 && offset <= 0xF1A156)
-       { 
+       {
                DACWriteWord(offset, data, who);
-               return; 
+               return;
        }
        else if (offset >= 0xF10000 && offset <= 0xF10007)
        {
+//#ifndef NEW_TIMER_SYSTEM
+#if 1
                switch(offset & 0x07)
                {
                case 0:
-                       jerry_timer_1_prescaler = data;
-                       jerry_reset_timer_1();
+                       JERRYPIT1Prescaler = data;
+                       JERRYResetPIT1();
                        break;
                case 2:
-                       jerry_timer_1_divider = data;
-                       jerry_reset_timer_1();
+                       JERRYPIT1Divider = data;
+                       JERRYResetPIT1();
                        break;
                case 4:
-                       jerry_timer_2_prescaler = data;
-                       jerry_reset_timer_2();
+                       JERRYPIT2Prescaler = data;
+                       JERRYResetPIT2();
                        break;
                case 6:
-                       jerry_timer_2_divider = data;
-                       jerry_reset_timer_2();
+                       JERRYPIT2Divider = data;
+                       JERRYResetPIT2();
                }
                // Need to handle (unaligned) cases???
+#else
+WriteLog("JERRY: Unhandled timer write %04X (WORD) at %08X by %s...\n", data, offset, whoName[who]);
+#endif
                return;
        }
 /*     else if (offset >= 0xF10010 && offset < 0xF10016)
@@ -658,15 +819,15 @@ void JERRYWriteWord(uint32 offset, uint16 data, uint32 who/*=UNKNOWN*/)
        {
 WriteLog("JERRY: (68K int en/lat - Unhandled!) Tried to write $%04X to $%08X!\n", data, offset);
        }
-       else if (offset >= 0xF17C00 && offset < 0xF17C02)
+/*     else if (offset >= 0xF17C00 && offset < 0xF17C02)
        {
 //I think this was removed from the Jaguar. If so, then we don't need this...!
                anajoy_word_write(offset, data);
                return;
-       }
+       }*/
        else if (offset >= 0xF14000 && offset < 0xF14003)
        {
-               joystick_word_write(offset, data);
+               JoystickWriteWord(offset, data);
                eeprom_word_write(offset, data);
                return;
        }