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MCUME/MCUME_teensy41/teensyhandy/mikie.h
jean-marcharvengt f5208fa857 add SNES and Atari Lynx emulation
2022-06-11 21:22:05 +02:00

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//
// Copyright (c) 2004 K. Wilkins
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from
// the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
//////////////////////////////////////////////////////////////////////////////
// Handy - An Atari Lynx Emulator //
// Copyright (c) 1996,1997 //
// K. Wilkins //
//////////////////////////////////////////////////////////////////////////////
// Mikey class header file //
//////////////////////////////////////////////////////////////////////////////
// //
// This header file provides the interface definition and some of the code //
// for the Mikey chip within the Lynx. The most crucial code is the //
// Update() function which as you can probably guess updates all of the //
// Mikey hardware counters and screen DMA from the prevous time it was //
// called. Yes I know how to spell Mikey but I cant be bothered to change //
// it everywhere. //
// //
// K. Wilkins //
// August 1997 //
// //
//////////////////////////////////////////////////////////////////////////////
// Revision History: //
// ----------------- //
// //
// 01Aug1997 KW Document header added & class documented. //
// //
//////////////////////////////////////////////////////////////////////////////
#ifndef MIKIE_H
#define MIKIE_H
//#define TRACE_MIKIE
#ifdef TRACE_MIKIE
#define TRACE_MIKIE0(msg) _RPT1(_CRT_WARN,"CMikie::"msg" (Time=%012d)\n",gSystemCycleCount)
#define TRACE_MIKIE1(msg,arg1) _RPT2(_CRT_WARN,"CMikie::"msg" (Time=%012d)\n",arg1,gSystemCycleCount)
#define TRACE_MIKIE2(msg,arg1,arg2) _RPT3(_CRT_WARN,"CMikie::"msg" (Time=%012d)\n",arg1,arg2,gSystemCycleCount)
#define TRACE_MIKIE3(msg,arg1,arg2,arg3) _RPT4(_CRT_WARN,"CMikie::"msg" (Time=%012d)\n",arg1,arg2,arg3,gSystemCycleCount)
#else
#define TRACE_MIKIE0(msg)
#define TRACE_MIKIE1(msg,arg1)
#define TRACE_MIKIE2(msg,arg1,arg2)
#define TRACE_MIKIE3(msg,arg1,arg2,arg3)
#endif
class CSystem;
#define MIKIE_START 0xfd00
#define MIKIE_SIZE 0x100
#define DMA_RDWR_CYC 4
//
// Define counter types and defines
//
#define CTRL_A_IRQEN 0x80
#define CTRL_A_RTD 0x40
#define CTRL_A_RELOAD 0x10
#define CTRL_A_COUNT 0x08
#define CTRL_A_DIVIDE 0x07
#define CTRL_B_TDONE 0x08
#define CTRL_B_LASTCK 0x04
#define CTRL_B_CIN 0x02
#define CTRL_B_COUT 0x01
#define LINE_TIMER 0x00
#define SCREEN_TIMER 0x02
#define LINE_WIDTH 160
#define LINE_SIZE 80
#define UART_TX_INACTIVE 0x80000000
#define UART_RX_INACTIVE 0x80000000
#define UART_BREAK_CODE 0x00008000
#define UART_MAX_RX_QUEUE 32
#define UART_TX_TIME_PERIOD (11)
#define UART_RX_TIME_PERIOD (11)
#define UART_RX_NEXT_DELAY (44)
typedef struct
{
union
{
struct
{
#ifdef MSB_FIRST
UBYTE unused:8;
UBYTE unused2:8;
UBYTE unused3:4;
UBYTE Blue:4;
UBYTE Red:4;
UBYTE Green:4;
#else
UBYTE Green:4;
UBYTE Red:4;
UBYTE Blue:4;
#endif
}Colours;
ULONG Index;
};
}TPALETTE;
//
// Enumerated types for possible mikie windows independant modes
//
enum
{
MIKIE_BAD_MODE=0,
MIKIE_NO_ROTATE,
MIKIE_ROTATE_L,
MIKIE_ROTATE_R
};
enum
{
MIKIE_PIXEL_FORMAT_16BPP_565=0,
MIKIE_PIXEL_FORMAT_16BPP_565_BE
};
class CMikie : public CLynxBase
{
public:
CMikie(CSystem& parent, ULONG displayformat, ULONG samplerate);
~CMikie();
bool ContextSave(LSS_FILE *fp);
bool ContextLoad(LSS_FILE *fp);
void Reset(void);
UBYTE Peek(ULONG addr);
void Poke(ULONG addr,UBYTE data);
ULONG ObjectSize(void) {return MIKIE_SIZE;};
void PresetForHomebrew(void);
void ComLynxCable(int status);
void ComLynxRxData(int data);
void ComLynxTxLoopback(int data);
void ComLynxTxCallback(void (*function)(int data,ULONG objref),ULONG objref);
void BuildPalette(void);
void Update(void);
void SetRotation(UBYTE data) {mDisplayRotate_Pending = data;};
inline bool SwitchAudInDir(void){ return(mIODIR&0x10);};
inline bool SwitchAudInValue(void){ return (mIODAT&0x10);};
private:
inline void UpdateSound(void);
inline void UpdateCalcSound(void);
inline void ResetDisplayPtr();
ULONG DisplayRenderLine(void);
void BlowOut(void);
private:
CSystem &mSystem;
// Hardware storage
ULONG mDisplayAddress;
ULONG mAudioInputComparator;
ULONG mTimerStatusFlags;
ULONG mTimerInterruptMask;
UBYTE mDisplayRotate;
UBYTE mDisplayRotate_Pending;
TPALETTE mPalette[16];
HandyPixel mColourMap[4096];
ULONG mIODAT;
ULONG mIODIR;
ULONG mIODAT_REST_SIGNAL;
ULONG mDISPCTL_DMAEnable;
ULONG mDISPCTL_Flip;
ULONG mDISPCTL_FourColour;
ULONG mDISPCTL_Colour;
ULONG mTIM_0_BKUP;
ULONG mTIM_0_ENABLE_RELOAD;
ULONG mTIM_0_ENABLE_COUNT;
ULONG mTIM_0_LINKING;
ULONG mTIM_0_CURRENT;
ULONG mTIM_0_TIMER_DONE;
ULONG mTIM_0_LAST_CLOCK;
ULONG mTIM_0_BORROW_IN;
ULONG mTIM_0_BORROW_OUT;
ULONG mTIM_0_LAST_LINK_CARRY;
ULONG mTIM_0_LAST_COUNT;
ULONG mTIM_1_BKUP;
ULONG mTIM_1_ENABLE_RELOAD;
ULONG mTIM_1_ENABLE_COUNT;
ULONG mTIM_1_LINKING;
ULONG mTIM_1_CURRENT;
ULONG mTIM_1_TIMER_DONE;
ULONG mTIM_1_LAST_CLOCK;
ULONG mTIM_1_BORROW_IN;
ULONG mTIM_1_BORROW_OUT;
ULONG mTIM_1_LAST_LINK_CARRY;
ULONG mTIM_1_LAST_COUNT;
ULONG mTIM_2_BKUP;
ULONG mTIM_2_ENABLE_RELOAD;
ULONG mTIM_2_ENABLE_COUNT;
ULONG mTIM_2_LINKING;
ULONG mTIM_2_CURRENT;
ULONG mTIM_2_TIMER_DONE;
ULONG mTIM_2_LAST_CLOCK;
ULONG mTIM_2_BORROW_IN;
ULONG mTIM_2_BORROW_OUT;
ULONG mTIM_2_LAST_LINK_CARRY;
ULONG mTIM_2_LAST_COUNT;
ULONG mTIM_3_BKUP;
ULONG mTIM_3_ENABLE_RELOAD;
ULONG mTIM_3_ENABLE_COUNT;
ULONG mTIM_3_LINKING;
ULONG mTIM_3_CURRENT;
ULONG mTIM_3_TIMER_DONE;
ULONG mTIM_3_LAST_CLOCK;
ULONG mTIM_3_BORROW_IN;
ULONG mTIM_3_BORROW_OUT;
ULONG mTIM_3_LAST_LINK_CARRY;
ULONG mTIM_3_LAST_COUNT;
ULONG mTIM_4_BKUP;
ULONG mTIM_4_ENABLE_RELOAD;
ULONG mTIM_4_ENABLE_COUNT;
ULONG mTIM_4_LINKING;
ULONG mTIM_4_CURRENT;
ULONG mTIM_4_TIMER_DONE;
ULONG mTIM_4_LAST_CLOCK;
ULONG mTIM_4_BORROW_IN;
ULONG mTIM_4_BORROW_OUT;
ULONG mTIM_4_LAST_LINK_CARRY;
ULONG mTIM_4_LAST_COUNT;
ULONG mTIM_5_BKUP;
ULONG mTIM_5_ENABLE_RELOAD;
ULONG mTIM_5_ENABLE_COUNT;
ULONG mTIM_5_LINKING;
ULONG mTIM_5_CURRENT;
ULONG mTIM_5_TIMER_DONE;
ULONG mTIM_5_LAST_CLOCK;
ULONG mTIM_5_BORROW_IN;
ULONG mTIM_5_BORROW_OUT;
ULONG mTIM_5_LAST_LINK_CARRY;
ULONG mTIM_5_LAST_COUNT;
ULONG mTIM_6_BKUP;
ULONG mTIM_6_ENABLE_RELOAD;
ULONG mTIM_6_ENABLE_COUNT;
ULONG mTIM_6_LINKING;
ULONG mTIM_6_CURRENT;
ULONG mTIM_6_TIMER_DONE;
ULONG mTIM_6_LAST_CLOCK;
ULONG mTIM_6_BORROW_IN;
ULONG mTIM_6_BORROW_OUT;
ULONG mTIM_6_LAST_LINK_CARRY;
ULONG mTIM_6_LAST_COUNT;
ULONG mTIM_7_BKUP;
ULONG mTIM_7_ENABLE_RELOAD;
ULONG mTIM_7_ENABLE_COUNT;
ULONG mTIM_7_LINKING;
ULONG mTIM_7_CURRENT;
ULONG mTIM_7_TIMER_DONE;
ULONG mTIM_7_LAST_CLOCK;
ULONG mTIM_7_BORROW_IN;
ULONG mTIM_7_BORROW_OUT;
ULONG mTIM_7_LAST_LINK_CARRY;
ULONG mTIM_7_LAST_COUNT;
ULONG mAUDIO_0_BKUP;
ULONG mAUDIO_0_ENABLE_RELOAD;
ULONG mAUDIO_0_ENABLE_COUNT;
ULONG mAUDIO_0_LINKING;
ULONG mAUDIO_0_CURRENT;
ULONG mAUDIO_0_TIMER_DONE;
ULONG mAUDIO_0_LAST_CLOCK;
ULONG mAUDIO_0_BORROW_IN;
ULONG mAUDIO_0_BORROW_OUT;
ULONG mAUDIO_0_LAST_LINK_CARRY;
ULONG mAUDIO_0_LAST_COUNT;
SBYTE mAUDIO_0_VOLUME;
ULONG mAUDIO_0_INTEGRATE_ENABLE;
ULONG mAUDIO_0_WAVESHAPER;
ULONG mAUDIO_1_BKUP;
ULONG mAUDIO_1_ENABLE_RELOAD;
ULONG mAUDIO_1_ENABLE_COUNT;
ULONG mAUDIO_1_LINKING;
ULONG mAUDIO_1_CURRENT;
ULONG mAUDIO_1_TIMER_DONE;
ULONG mAUDIO_1_LAST_CLOCK;
ULONG mAUDIO_1_BORROW_IN;
ULONG mAUDIO_1_BORROW_OUT;
ULONG mAUDIO_1_LAST_LINK_CARRY;
ULONG mAUDIO_1_LAST_COUNT;
SBYTE mAUDIO_1_VOLUME;
ULONG mAUDIO_1_INTEGRATE_ENABLE;
ULONG mAUDIO_1_WAVESHAPER;
ULONG mAUDIO_2_BKUP;
ULONG mAUDIO_2_ENABLE_RELOAD;
ULONG mAUDIO_2_ENABLE_COUNT;
ULONG mAUDIO_2_LINKING;
ULONG mAUDIO_2_CURRENT;
ULONG mAUDIO_2_TIMER_DONE;
ULONG mAUDIO_2_LAST_CLOCK;
ULONG mAUDIO_2_BORROW_IN;
ULONG mAUDIO_2_BORROW_OUT;
ULONG mAUDIO_2_LAST_LINK_CARRY;
ULONG mAUDIO_2_LAST_COUNT;
SBYTE mAUDIO_2_VOLUME;
ULONG mAUDIO_2_INTEGRATE_ENABLE;
ULONG mAUDIO_2_WAVESHAPER;
ULONG mAUDIO_3_BKUP;
ULONG mAUDIO_3_ENABLE_RELOAD;
ULONG mAUDIO_3_ENABLE_COUNT;
ULONG mAUDIO_3_LINKING;
ULONG mAUDIO_3_CURRENT;
ULONG mAUDIO_3_TIMER_DONE;
ULONG mAUDIO_3_LAST_CLOCK;
ULONG mAUDIO_3_BORROW_IN;
ULONG mAUDIO_3_BORROW_OUT;
ULONG mAUDIO_3_LAST_LINK_CARRY;
ULONG mAUDIO_3_LAST_COUNT;
SBYTE mAUDIO_3_VOLUME;
ULONG mAUDIO_3_INTEGRATE_ENABLE;
ULONG mAUDIO_3_WAVESHAPER;
SBYTE mAUDIO_OUTPUT[4];
UBYTE mAUDIO_ATTEN[4];
ULONG mSTEREO;
ULONG mPAN;
//
// Serial related variables
//
ULONG mUART_RX_IRQ_ENABLE;
ULONG mUART_TX_IRQ_ENABLE;
ULONG mUART_RX_COUNTDOWN;
ULONG mUART_TX_COUNTDOWN;
ULONG mUART_SENDBREAK;
ULONG mUART_TX_DATA;
ULONG mUART_RX_DATA;
ULONG mUART_RX_READY;
ULONG mUART_PARITY_ENABLE;
ULONG mUART_PARITY_EVEN;
SLONG mUART_CABLE_PRESENT;
void (*mpUART_TX_CALLBACK)(int data,ULONG objref);
ULONG mUART_TX_CALLBACK_OBJECT;
SLONG mUART_Rx_input_queue[UART_MAX_RX_QUEUE];
ULONG mUART_Rx_input_ptr;
ULONG mUART_Rx_output_ptr;
SLONG mUART_Rx_waiting;
SLONG mUART_Rx_framing_error;
SLONG mUART_Rx_overun_error;
//
// Screen related
//
UBYTE *mpDisplayCurrent;
UBYTE *mpRamPointer;
ULONG mLynxLine;
ULONG mLynxLineDMACounter;
ULONG mLynxAddr;
ULONG mAudioSampleRate;
ULONG mDisplayFormat;
ULONG mDisplayPitch;
};
#endif
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