static UINT16 m68000_read_pcrelative_16(UINT32 offset)
{
if (offset >= m68k_encrypt_start && offset <= m68k_encrypt_end)
return *(UINT16 *)&m68k_decrypted_rom[offset];
else
return Memory_ReadW(offset);
}
void m68000_execute2(UINT32 start, UINT32 break_point)
{
int nest_counter = 0;
UINT32 pc, old_pc, opcode;
c68k_struc C68K_temp;
old_pc = C68k_Get_Reg(&C68K, M68K_PC);
memcpy(&C68K_temp, &C68K, sizeof(c68k_struc));
C68k_Set_Reg(&C68K_temp, C68K_PC, start);
C68K_temp.A[5] = 0x108000;
C68K_temp.A[7] -= 4 * 8 * 2;
while ((pc = C68k_Get_Reg(&C68K_temp, M68K_PC)) != break_point)
{
opcode = Memory_ReadW(pc);
if (opcode == 0x4e75)
{
// rts
nest_counter--;
if (nest_counter < 0) break;
}
else if (opcode == 0x6100)
{
// bsr 16
nest_counter++;
}
else if ((opcode & 0xff00) == 0x6100)
{
// bsr 8
nest_counter++;
}
else if ((opcode & 0xffc0) == 0x4e80)
{
// jsr
nest_counter++;
}
C68k_Exec(&C68K_temp, 1);
}
C68k_Set_Reg(&C68K, C68K_PC, old_pc);
}
// -----------------------------------------------------------------------------------
// �����Τᤤ��롼��
// -----------------------------------------------------------------------------------
void WinX68k_Exec(void)
{
if(!(Memory_ReadD(0xed0008)==ram_size)){
Memory_WriteB(0xe8e00d, 0x31); // SRAM write permission
Memory_WriteD(0xed0008, ram_size); // Define RAM amount
}
//char *test = NULL;
int clk_total, clkdiv, usedclk, hsync, clk_next, clk_count, clk_line=0;
int KeyIntCnt = 0, MouseIntCnt = 0;
DWORD t_start = timeGetTime(), t_end;
if ( Config.FrameRate == 0)
Config.FrameRate = 7;
if ( Config.FrameRate != 7 ) {
DispFrame = (DispFrame+1)%Config.FrameRate;
} else { // Auto Frame Skip
if ( FrameSkipQueue ) {
if ( FrameSkipCount>15 ) {
FrameSkipCount = 0;
FrameSkipQueue++;
DispFrame = 0;
} else {
FrameSkipCount++;
FrameSkipQueue--;
DispFrame = 1;
}
} else {
FrameSkipCount = 0;
DispFrame = 0;
}
}
vline = 0;
clk_count = -ICount;
clk_total = (CRTC_Regs[0x29] & 0x10) ? VSYNC_HIGH : VSYNC_NORM;
clk_total = (clk_total*clockmhz)/10;
clkdiv = clockmhz;
/*if (Config.XVIMode == 1) {
clk_total = (clk_total*16)/10;
clkdiv = 16;
} else if (Config.XVIMode == 2) {
clk_total = (clk_total*24)/10;
clkdiv = 24;
} else {
clkdiv = 10;
}*/
if(clkdiv != old_clkdiv || ram_size != old_ram_size){
printf("CPU Clock: %d%s\n",clkdiv,"MHz");
printf("RAM Size: %ld%s\n",ram_size/1000000,"MB");
old_clkdiv = clkdiv;
old_ram_size = ram_size;
}
ICount += clk_total;
clk_next = (clk_total/VLINE_TOTAL);
hsync = 1;
do {
int m, n = (ICount>CLOCK_SLICE)?CLOCK_SLICE:ICount;
//C68K.ICount = m68000_ICountBk = 0; // ������ȯ������Ϳ���Ƥ����ʤ��ȥ����CARAT��
if ( hsync ) {
hsync = 0;
clk_line = 0;
MFP_Int(0);
if ( (vline>=CRTC_VSTART)&&(vline<CRTC_VEND) )
VLINE = ((vline-CRTC_VSTART)*CRTC_VStep)/2;
else
VLINE = (DWORD)-1;
if ( (!(MFP[MFP_AER]&0x40))&&(vline==CRTC_IntLine) )
MFP_Int(1);
if ( MFP[MFP_AER]&0x10 ) {
if ( vline==CRTC_VSTART )
MFP_Int(9);
} else {
if ( CRTC_VEND>=VLINE_TOTAL ) {
if ( (long)vline==(CRTC_VEND-VLINE_TOTAL) ) MFP_Int(9); // ���������ƥ�����Ȥ���TOTAL<VEND��
} else {
if ( (long)vline==(VLINE_TOTAL-1) ) MFP_Int(9); // ���쥤�������饤�ޡ��ϥ���Ǥʤ��ȥ��ᡩ
}
}
}
#ifdef WIN68DEBUG
if (traceflag/*&&fdctrace*/)
{
FILE *fp;
static DWORD oldpc;
int i;
char buf[200];
fp=fopen("_trace68.txt", "a");
for (i=0; i<HSYNC_CLK; i++)
{
m68k_disassemble(buf, C68k_Get_Reg(&C68K, C68K_PC));
// if (MEM[0xa84c0]) /**test=1; */tracing=1000;
// if (regs.pc==0x9d2a) tracing=5000;
// if ((regs.pc>=0x2000)&&((regs.pc<=0x8e0e0))) tracing=50000;
// if (regs.pc<0x10000) tracing=1;
// if ( (regs.pc&1) )
// fp=fopen("_trace68.txt", "a");
// if ( (regs.pc==0x7176) /*&& (Memory_ReadW(oldpc)==0xff1a)*/ ) tracing=100;
// if ( (/*((regs.pc>=0x27000) && (regs.pc<=0x29000))||*/((regs.pc>=0x27000) && (regs.pc<=0x29000))) && (oldpc!=regs.pc))
if (/*fdctrace&&*/(oldpc != C68k_Get_Reg(&C68K, C68K_PC)))
{
// //tracing--;
fprintf(fp, "D0:%08X D1:%08X D2:%08X D3:%08X D4:%08X D5:%08X D6:%08X D7:%08X CR:%04X\n", C68K.D[0], C68K.D[1], C68K.D[2], C68K.D[3], C68K.D[4], C68K.D[5], C68K.D[6], C68K.D[7], 0/* xxx �Ȥꤢ����0 C68K.ccr */);
fprintf(fp, "A0:%08X A1:%08X A2:%08X A3:%08X A4:%08X A5:%08X A6:%08X A7:%08X SR:%04X\n", C68K.A[0], C68K.A[1], C68K.A[2], C68K.A[3], C68K.A[4], C68K.A[5], C68K.A[6], C68K.A[7], C68k_Get_Reg(&C68K, C68K_SR) >> 8/* regs.sr_high*/);
fprintf(fp, "<%04X> (%08X ->) %08X : %s\n", Memory_ReadW(C68k_Get_Reg(&C68K, C68K_PC)), oldpc, C68k_Get_Reg(&C68K, C68K_PC), buf);
}
#ifdef CYCLONE
oldpc = m68000_get_reg(M68K_PC);
// * C68KICount = 1;
m68000_execute(1);
#else
oldpc = C68k_Get_Reg(&C68K, C68K_PC);
//C68K.ICount = 1;
//C68k_Exec(&C68K, C68K.ICount);
C68k_Exec(&C68K, 1);
#endif
}
fclose(fp);
usedclk = clk_line = HSYNC_CLK;
clk_count = clk_next;
}
else
#endif
{
//C68K.ICount = n;
#ifdef CYCLONE
m68000_execute(n);
#else
C68k_Exec(&C68K, n);
#endif
m = (n-m68000_ICountBk);
//m = (n-C68K.ICount-m68000_ICountBk); // clockspeed progress
ClkUsed += m*10;
usedclk = ClkUsed/clkdiv;
clk_line += usedclk;
ClkUsed -= usedclk*clkdiv;
ICount -= m;
clk_count += m;
//C68K.ICount = m68000_ICountBk = 0;
}
MFP_Timer(usedclk);
RTC_Timer(usedclk);
DMA_Exec(0);
DMA_Exec(1);
DMA_Exec(2);
if ( clk_count>=clk_next ) {
//OPM_RomeoOut(Config.BufferSize*5);
//MIDI_DelayOut((Config.MIDIAutoDelay)?(Config.BufferSize*5):Config.MIDIDelay);
MFP_TimerA();
if ( (MFP[MFP_AER]&0x40)&&(vline==CRTC_IntLine) )
MFP_Int(1);
if ( (!DispFrame)&&(vline>=CRTC_VSTART)&&(vline<CRTC_VEND) ) {
if ( CRTC_VStep==1 ) { // HighReso 256dot��2���ɤߡ�
if ( vline%2 )
WinDraw_DrawLine();
} else if ( CRTC_VStep==4 ) { // LowReso 512dot
WinDraw_DrawLine(); // 1��������2�������ʥ����졼����
VLINE++;
WinDraw_DrawLine();
} else { // High 512dot / Low 256dot
WinDraw_DrawLine();
}
}
ADPCM_PreUpdate(clk_line);
OPM_Timer(clk_line);
MIDI_Timer(clk_line);
#ifndef NO_MERCURY
Mcry_PreUpdate(clk_line);
#endif
KeyIntCnt++;
if ( KeyIntCnt>(VLINE_TOTAL/4) ) {
KeyIntCnt = 0;
Keyboard_Int();
}
MouseIntCnt++;
if ( MouseIntCnt>(VLINE_TOTAL/8) ) {
MouseIntCnt = 0;
SCC_IntCheck();
}
DSound_Send0(clk_line);
vline++;
clk_next = (clk_total*(vline+1))/VLINE_TOTAL;
hsync = 1;
}
} while ( vline<VLINE_TOTAL );
