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MCUME/MCUME_teensy/teensycastaway/test.cpp

644 wiersze
15 KiB
C++
Czysty Wina Historia

#include <string.h>
#include "emuapi.h"
#include "tft_t_dma.h"
#include "dcastaway.h"
#include "st.h"
#include "mem.h"
#include "m68k_intrf.h"
#include "iopins.h"
#include "psram_t.h"
#ifdef PSRAM_CS
PSRAM_T psram = PSRAM_T(PSRAM_CS, PSRAM_MOSI, PSRAM_SCLK, PSRAM_MISO);
#endif
#ifndef NO_SOUND
#include "sound.h"
#endif
#include "tossw12.h"
int8 *membase;
int8 *membasemax;
int8 *membase2;
int8 *rombase;
int hbl = 0;
int end_visible_screen = 264;
int hsync = 0;
int vsyncpend = 0, hsyncpend = 0;
int exmousex=160,exmousey=100,MouseRelease1=0,MouseRelease2=0;
int CompleteSndBufIdx;
int waitstate=0;
int dcastaway_disc_writed[2] = { 0 , 0 };
int dcastaway_disc_for_write[2] = { 0 , 0 };
int draw_border=0, maybe_border=0;
unsigned cyclenext=512;
unsigned vid_adr_cycleyet=0;
static unsigned char vid_cycles_pal[1024];
static unsigned char vid_cycles_ntsc[1024];
unsigned char *vid_cycle=(unsigned char *)&vid_cycles_pal;
int readdsk=1;
extern unsigned char fdc_motor;
#define XRES 320
#define YRES 200
static unsigned short line[XRES];
#define PALMULT8(x) ((x)<<5)
#define RGBVAL16(r,g,b) ( (((r>>3)&0x1f)<<11) | (((g>>2)&0x3f)<<5) | (((b>>3)&0x1f)<<0) )
void Redraw16 ( int row, int vid_adr ) {
static unsigned short palmap [ 16 ];
//Source address
register unsigned short *line_i;
if (vid_adr<(MEMBASE+MEM1SIZE))
line_i = (unsigned short *)(&membase[vid_adr]);
else
line_i = (unsigned short *)(&membase2[vid_adr-MEM1SIZE]);
register unsigned short *line_o= &line[0];
//Build paletter
if (vid_flag) {
unsigned char i, r, g, b;
for (i = 0; i < 16; i++) {
b = PALMULT8 ( (vid_col[i] & 0x7) );
g = PALMULT8 ( ((vid_col[i] >> 4) & 0x7) );
r = PALMULT8 ( ((vid_col[i] >> 8) & 0x7) );
palmap [ i ] = RGBVAL16(r,g,b);
}
vid_flag=0;
}
register int col;
register int bit;
for (col=0; col<20; col++) {
if(line_i==membasemax) line_i=(unsigned short *)membase2;
register unsigned short pl0=*line_i++,pl1=*line_i++,pl2=*line_i++,pl3=*line_i++;
for (bit=15;bit>=0;bit--) {
int ind = (pl0 >> bit) & 0x1;
ind += ((pl1 >> bit) & 0x1)<<1;
ind += ((pl2 >> bit) & 0x1)<<2;
ind += ((pl3 >> bit) & 0x1)<<3;
*line_o++ = palmap [ ind ];
}
}
emu_DrawLine16(&line[0], XRES, YRES, row);
}
void Redraw16_med ( int row, int vid_adr ) {
static unsigned short palmap [ 4 ];
//Source address
register unsigned short *line_i;
if (vid_adr<(MEMBASE+MEM1SIZE))
line_i = (unsigned short *)(&membase[vid_adr]);
else
line_i = (unsigned short *)(&membase2[vid_adr-MEM1SIZE]);
register unsigned short *line_o= &line[0];
//Build paletter
if (vid_flag) {
unsigned char i, r, g, b;
for (i = 0; i < 4; i++) {
b = PALMULT8 ( (vid_col[i] & 0x7) );
g = PALMULT8 ( ((vid_col[i] >> 4) & 0x7) );
r = PALMULT8 ( ((vid_col[i] >> 8) & 0x7) );
palmap [ i ] = RGBVAL16(r,g,b);
}
//palmap [ 0 ] = RGBVAL16(0xff,0xff,0xff);
vid_flag=0;
}
register int col;
register int bit;
for (col=0; col<40; col++) {
if(line_i==membasemax) line_i=(unsigned short *)membase2;
register unsigned short pl0=*line_i++,pl1=*line_i++;
for (bit=15;bit>=0;bit--) {
int ind = (pl0 >> bit) & 0x1;
ind += ((pl1 >> bit) & 0x1)<<1;
if (bit & 0x01)
*line_o++ = palmap [ ind ];
}
}
emu_DrawLine16(&line[0], XRES, YRES, row);
}
static uint8 disk0[256];
static uint8 disk1[256];
static uint8 membis[MEMSIZE-MEM1SIZE];
void ast_Init(void)
{
emu_printf("Allocating RAM");
membase = (int8*) malloc(MEM1SIZE);
if (!membase) emu_printf("malloc failed\n");
membasemax = &membase[MEM1SIZE];
//Serial.println((unsigned long)membase);
//membase = 0x20200000;
for (int i=0; i<MEM1SIZE;i++)
membase[i]=0;
membase2 = (int8*)&membis[0];
rombase = (int8*)&tos[0]-ROMBASE;
(void) memcpy (membase, &tos[0], 8);
extern unsigned char *disc[2];
disc [ 0 ] = (uint8*) disk0[0];
disc [ 1 ] = (uint8*) disk1[0];
}
static int mouse_x = XRES/2;
static int mouse_y = 100;
static int prev_key = 0;
static int prev_j = 0;
static int prev_mouseb = 0;
static bool isMouse = true;
static int joynum = 1;
static int hk = 0;
static int prev_hk = 0;
static int k = 0;
static int prev_k = 0;
extern void ast_Input(int click) {
hk = emu_ReadI2CKeyboard();
k = emu_ReadKeys();
}
static void do_events(void)
{
int bClick = k & ~prev_k;
prev_k = k;
// Toggle mouse/joystick
if (bClick & MASK_KEY_USER1) {
if (isMouse) isMouse = false;
else isMouse = true;
}
// Toggle keymap
if (bClick & MASK_KEY_USER2) {
emu_setKeymap(0);
}
if (hk != prev_hk) {
prev_hk == hk;
if ( (hk != 0) && (hk != prev_key) ) {
prev_key = hk;
IkbdKeyPress ( hk );
//if (hk == 68) {
// if (isMouse) isMouse = false;
// else isMouse = true;
//}
//IkbdLoop();
//Serial.print("press ");
//Serial.println(hk);
}
}
if ( (hk == 0) && (prev_key) ) {
IkbdKeyRelease ( prev_key | 0x80 );
//IkbdLoop();
//Serial.print("release ");
//Serial.println(hk);
prev_key = 0;
}
if (!isMouse)
{
int j = 0;
if (( k & MASK_JOY1_RIGHT) || ( k & MASK_JOY2_RIGHT)) {
j |= 0x08;
}
if (( k & MASK_JOY1_LEFT) || ( k & MASK_JOY2_LEFT)) {
j |= 0x04;
}
if (( k & MASK_JOY1_UP) || ( k & MASK_JOY2_UP)) {
j |= 0x01;
}
if (( k & MASK_JOY1_DOWN) || ( k & MASK_JOY2_DOWN)) {
j |= 0x02;
}
if ( k & MASK_JOY2_BTN) {
j |= 0x80;
}
if (j != prev_j) {
IkbdJoystickChange(joynum,j);
prev_j = j;
}
}
else {
if (( k & MASK_JOY1_RIGHT) || ( k & MASK_JOY2_RIGHT)) {
if ( mouse_x < XRES ) {
mouse_x += 1;
//Serial.print("r");
IkbdMouseMotion ( mouse_x, mouse_y );
IkbdLoop();
}
}
else if (( k & MASK_JOY1_LEFT) || ( k & MASK_JOY2_LEFT)) {
if ( mouse_x > 1 ) {
mouse_x -= 1;
//Serial.print("l");
IkbdMouseMotion ( mouse_x, mouse_y );
IkbdLoop();
}
}
else if (( k & MASK_JOY1_UP) || ( k & MASK_JOY2_UP)) {
if ( mouse_y > 1 ) {
mouse_y -= 1;
//Serial.print("u");
IkbdMouseMotion ( mouse_x, mouse_y );
IkbdLoop();
}
}
else if (( k & MASK_JOY1_DOWN) || ( k & MASK_JOY2_DOWN)) {
if ( mouse_y < YRES ) {
mouse_y += 1;
//Serial.print("d");
IkbdMouseMotion ( mouse_x, mouse_y );
IkbdLoop();
}
}
int mouseb=0;
if ( ( k & MASK_JOY2_BTN) ){
mouseb=1;
}
if ( (mouseb != prev_mouseb) ){
if (mouseb) IkbdMousePress(2);
else IkbdMouseRelease(2);
//Serial.println("btoggle");
IkbdLoop();
prev_mouseb = mouseb;
}
}
}
void ast_Step(void)
{
int delay_fdc_motor=0;
unsigned long cycleco=0;
unsigned long oldpend,newpend;
hsync=0;
hbl=0;
vsyncpend=0;
hsyncpend=0;
int running = 1;
/* Event loop */
while (running)
{
cycleco=cpu_loop(cyclenext);
cycleco+=waitstate;
waitstate=0;
#ifndef NO_SOUND
SoundCycles+=cycleco;
#endif
//MFP timer A delay mode
if (mfp_ascale>1) {
mfp_acount-=mfp_ascale*cycleco;
if (mfp_acount<=0) {
do {mfp_acount+=mfp_tadr;} while (mfp_acount<=0);
oldpend=mfp_ipra; newpend=(oldpend|0x20)&mfp_iera;
if (newpend!=oldpend) {mfp_ipra=newpend;
}
}
#ifdef USE_SHORT_SLICE
cyclenext=4+(mfp_acount/mfp_ascale);
#endif
}
#ifdef USE_SHORT_SLICE
else
cyclenext=512;
#endif
//MFP timer B delay mode
if (mfp_bscale>1) {
mfp_bcount-=mfp_bscale*cycleco;
if (mfp_bcount<=0) {
do {mfp_bcount+=mfp_tbdr;} while (mfp_bcount<=0);
oldpend=mfp_ipra; newpend=(oldpend|0x1)&mfp_iera;
if (newpend!=oldpend) {mfp_ipra=newpend;
}
}
#ifdef USE_SHORT_SLICE
{
int n=4+(mfp_bcount/mfp_bscale);
if (n<cyclenext)
cyclenext=n;
}
#endif
}
//MFP timer C delay mode
if (mfp_cscale>1) {
mfp_ccount-=mfp_cscale*cycleco;
if (mfp_ccount<=0) {
do {mfp_ccount+=mfp_tcdr;} while (mfp_ccount<=0);
oldpend=mfp_iprb; newpend=(oldpend|0x20)&mfp_ierb;
if (newpend!=oldpend) {mfp_iprb=newpend;
}
}
#ifdef USE_SHORT_SLICE
{
int n=4+(mfp_ccount/mfp_cscale);
if (n<cyclenext)
cyclenext=n;
}
#endif
}
//MFP timer D delay mode
if (mfp_dscale>1) {
mfp_dcount-=mfp_dscale*cycleco;
if (mfp_dcount<=0) {
do {mfp_dcount+=mfp_tddr;} while (mfp_dcount<=0);
oldpend=mfp_iprb; newpend=(oldpend|0x10)&mfp_ierb;
if (newpend!=oldpend) {mfp_iprb=newpend;
}
}
#ifdef USE_SHORT_SLICE
{
int n=4+(mfp_dcount/mfp_dscale);
if (n<cyclenext)
cyclenext=n;
}
#endif
}
vid_adr+=(cycleco)&(~3);
//Count hbls
hsync-=cycleco;
if (hsync<=0) {
hbl++; hsync+=512;
//Generate hbl interrupt
Interrupt(AUTOINT2, 2);
//Trigger event counters for visible scan-lines
if (hbl<64) {
vid_adr=(vid_baseh<<16)+(vid_basem<<8);
}
else if (hbl<264) {
if ( (hbl == 132 )) {
// if ( (hbl % (end_visible_screen/2) ) == 0) {
//CPUEvent();
//timer_tick = 1;
}
//Do IO every 64 hbls
if (!(hbl&63)) {
//Generate FDC interrupt in mfp?
if (!(mfp_gpip & 0x20)) {
mfp_iprb |= 0x80;
mfp_iprb &= mfp_ierb;
}
//Generate ACIA interrupt in mfp?
IkbdWriteBuffer();
if (!(mfp_gpip & 0x10)) {
mfp_iprb |= 0x40;
mfp_iprb &= mfp_ierb;
}
}
if (emu_FrameSkip() == 0 ) {
//Update video address
vid_adr=(vid_baseh<<16)+(vid_basem<<8)+(hbl-64)*160;
//Draw screen line
if (vid_shiftmode==COL2) {
Redraw16_med ( hbl - 64, vid_adr );
} else {
Redraw16 ( hbl - 64, vid_adr );
}
}
//Timer-A event count mode
if (mfp_ascale==1) {
mfp_acount-=1048576;
if (mfp_acount<=0) {
mfp_acount=mfp_tadr;
oldpend=mfp_ipra; newpend=(oldpend|0x20)&mfp_iera;
if (newpend!=oldpend) {mfp_ipra=newpend;
}
}
}
//Timer-B event count mode
if (mfp_bscale==1) {
mfp_bcount-=1048576;
if (mfp_bcount<=0) {
mfp_bcount=mfp_tbdr;
oldpend=mfp_ipra; newpend=(oldpend|0x1)&mfp_iera;
if (newpend!=oldpend) {mfp_ipra=newpend;
}
}
}
}
//Vertical blank?
else if (hbl>=313)
{
delay(15);
//emu_DrawVsync();
do_events();
#ifndef NO_SOUND
Sound_Update_VBL();
#endif
running=0;
hbl=0;
//Generate vsync interrupt
Interrupt(AUTOINT4, 4);
//Do fdc spinup
if (fdc_motor){
if (delay_fdc_motor>150) {
fdc_status &= ~0x80;
delay_fdc_motor=0;
fdc_motor=0;
}
else delay_fdc_motor++;
}
}
}
//Recalculate interrupts?
{
int mfp_int;
mfp_int=0;
if (6>GetI()) {
//Mfp interrupt
{
int n, number;
uint16 imr, ipr, isr, irr;
int in_request;
//Find in_request and in_service
imr = (mfp_imra<<8)+mfp_imrb;
ipr = (mfp_ipra<<8)+mfp_iprb;
irr = imr & ipr;
isr = (mfp_isra<<8) + mfp_isrb;
//in_request higher than in_service?
if (irr>isr) {
//Find highest set bit
for (in_request = 15; in_request > 0; in_request--) {
if (irr & 0x8000) break;
irr <<= 1;
}
isr = 1 << in_request;
//Set interrupt in service bits in MFP
if (mfp_ivr & 0x8) {
mfp_isra |= isr >> 8;
mfp_isrb |= isr;
}else{
mfp_isra &= (~isr) >> 8;
mfp_isrb &= ~isr;
}
//Clear interrupt pending bits in MFP
mfp_ipra &= ~(isr >> 8);
mfp_iprb &= ~isr;
//Pass interrupt to cpu
number = in_request | (mfp_ivr & 0xf0);
Interrupt(number, 6);
mfp_int=1;
}
}
}
}
}
}
#ifdef PSRAM_CS
// disk IO mapped to PSRAM
extern "C" uint8 read_rom(int address) {
//emu_printh(address);
return (psram.psread(address));
}
extern "C" void write_rom(int address, uint8 val) {
psram.pswrite(address,val);
}
static int disksize = 0;
static int diskpt = 0;
int disk_Size(char * filename) {
//emu_printf("disk size");
//emu_printi(disksize);
return disksize;
}
int disk_Open(char * filename) {
//emu_printf("disk reset pt");
diskpt = 0;
return 1;
}
int disk_Read(char * buf, int size) {
//emu_printf("disk read");
//emu_printi(size);
int i = 0;
while ( ( i < size) && (diskpt < disksize) ) {
buf[i++] = read_rom(diskpt++);
}
return i;
}
int disk_Seek(int seek) {
//emu_printf("disk seek");
//emu_printi(seek);
diskpt = seek;
return diskpt;
}
#else
// disk IO mapped to File
int disk_Size(char * filename) {
return emu_FileSize(filename);
}
int disk_Open(char * filename) {
return emu_FileOpen(filename);
}
int disk_Read(char * buf, int size) {
return emu_FileRead(buf, size);
}
int disk_Seek(int seek) {
return emu_FileSeek(seek);
}
#endif
void ast_Start(char * filename)
{
emu_printf("init started");
strncpy (disk[0].name, filename, sizeof(disk[0].name));
#ifdef PSRAM_CS
char iobuf[512];
int iopos = 0;
disksize = 0;
int n;
psram.begin();
if (emu_FileOpen(filename)) {
while ( (n = emu_FileRead(&iobuf[0],sizeof(iobuf)) ) ) {
disksize += n;
for (int i=0; i<n; i++) {
write_rom(iopos++,iobuf[i]);
}
}
emu_FileClose();
}
emu_printf("psram loaded");
#endif
initialize_memmap();
FDCInit(0);
//FDCeject(0);
FDCeject(1);
IkbdReset();
IOInit();
#ifdef HAS_SND
emu_sndInit();
#endif
#ifndef NO_SOUND
Sound_Init();
#endif
HWReset(); /* CPU Reset */
emu_printf("init done");
}
void SND_Process(void *stream, int len) {
#ifndef NO_SOUND
Sound_UpdateFromCallBack16((short *)stream, len);
#endif
}
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