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https://github.com/RaySollium99/picodrive.git
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some DAC related regression fixes
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@467 be3aeb3a-fb24-0410-a615-afba39da0efa
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385a849102
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2 changed files with 10 additions and 9 deletions
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@ -4,8 +4,6 @@
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#define CYCLES_M68K_LINE 488 // suitable for both PAL/NTSC
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#define CYCLES_M68K_VINT_LAG 68
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#define CYCLES_M68K_ASD 148
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#define CYCLES_Z80_LINE 228
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#define CYCLES_Z80_ASD 69
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#define CYCLES_S68K_LINE 795
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#define CYCLES_S68K_ASD 241
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@ -18,10 +16,10 @@
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// CPUS_RUN
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#ifndef PICO_CD
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#define CPUS_RUN(m68k_cycles,z80_cycles,s68k_cycles) \
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#define CPUS_RUN(m68k_cycles,s68k_cycles) \
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SekRunM68k(m68k_cycles);
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#else
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#define CPUS_RUN(m68k_cycles,z80_cycles,s68k_cycles) \
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#define CPUS_RUN(m68k_cycles,s68k_cycles) \
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{ \
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if ((PicoOpt&POPT_EN_MCD_PSYNC) && (Pico_mcd->m.busreq&3) == 1) { \
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SekRunPS(m68k_cycles, s68k_cycles); /* "better/perfect sync" */ \
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@ -40,6 +38,8 @@ static int PicoFrameHints(void)
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int lines, y, lines_vis = 224, line_sample, skip;
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int hint; // Hint counter
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Pico.m.scanline=0;
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if ((PicoOpt&POPT_ALT_RENDERER) && !PicoSkipFrame && (pv->reg[1]&0x40)) { // fast rend., display enabled
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// draw a frame just after vblank in alternative render mode
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// yes, this will cause 1 frame lag, but this is inaccurate mode anyway.
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@ -72,7 +72,7 @@ static int PicoFrameHints(void)
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//dprintf("-hint: %i", hint);
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// This is to make active scan longer (needed for Double Dragon 2, mainly)
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CPUS_RUN(CYCLES_M68K_ASD, 0, CYCLES_S68K_ASD);
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CPUS_RUN(CYCLES_M68K_ASD, CYCLES_S68K_ASD);
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for (y=0;y<lines_vis;y++)
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{
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@ -139,7 +139,7 @@ static int PicoFrameHints(void)
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// Run scanline:
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if (Pico.m.dma_xfers) SekCyclesBurn(CheckDMA());
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CPUS_RUN(CYCLES_M68K_LINE, CYCLES_Z80_LINE, CYCLES_S68K_LINE);
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CPUS_RUN(CYCLES_M68K_LINE, CYCLES_S68K_LINE);
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#ifdef PICO_CD
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update_chips();
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@ -208,7 +208,7 @@ static int PicoFrameHints(void)
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// Run scanline:
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if (Pico.m.dma_xfers) SekCyclesBurn(CheckDMA());
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CPUS_RUN(CYCLES_M68K_LINE - CYCLES_M68K_VINT_LAG - CYCLES_M68K_ASD,
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CYCLES_Z80_LINE - CYCLES_Z80_ASD, CYCLES_S68K_LINE - CYCLES_S68K_ASD);
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CYCLES_S68K_LINE - CYCLES_S68K_ASD);
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#ifdef PICO_CD
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update_chips();
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@ -230,7 +230,7 @@ static int PicoFrameHints(void)
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// Run scanline:
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if (Pico.m.dma_xfers) SekCyclesBurn(CheckDMA());
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CPUS_RUN(CYCLES_M68K_LINE, CYCLES_Z80_LINE, CYCLES_S68K_LINE);
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CPUS_RUN(CYCLES_M68K_LINE, CYCLES_S68K_LINE);
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#ifdef PICO_CD
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update_chips();
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