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https://github.com/ekeeke/Genesis-Plus-GX.git
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[Core/Misc] code cleanup
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@ -293,7 +293,7 @@ void m68k_run(unsigned int cycles)
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REG_IR = m68ki_read_imm_16();
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/* Execute instruction */
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m68ki_instruction_jump_table[REG_IR]();
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m68ki_instruction_jump_table[REG_IR]();
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USE_CYCLES(CYC_INSTRUCTION[REG_IR]);
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/* Trace m68k_exception, if necessary */
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@ -353,9 +353,6 @@ void system_frame_gen(int do_skip)
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/* line counters */
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int start, end, line;
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/* Z80 interrupt flag */
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int zirq = 1;
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/* reset frame cycle counter */
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mcycles_vdp = 0;
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@ -551,9 +548,9 @@ void system_frame_gen(int do_skip)
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/* update 6-Buttons & Lightguns */
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input_refresh();
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if (zirq)
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if (Z80.irq_state)
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{
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/* Z80 interrupt is asserted exactly for one line */
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/* Z80 interrupt is asserted for exactly one line */
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m68k_run(mcycles_vdp + 788);
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if (zstate == 1)
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{
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@ -566,7 +563,6 @@ void system_frame_gen(int do_skip)
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/* clear Z80 interrupt */
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Z80.irq_state = CLEAR_LINE;
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zirq = 0;
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}
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/* run 68k & Z80 until end of line */
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@ -724,9 +720,6 @@ void system_frame_scd(int do_skip)
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/* line counters */
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int start, end, line;
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/* Z80 interrupt flag */
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int zirq = 1;
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/* reset frame cycle counter */
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mcycles_vdp = 0;
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scd.cycles = 0;
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@ -881,7 +874,7 @@ void system_frame_scd(int do_skip)
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/* assert Z80 interrupt */
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Z80.irq_state = ASSERT_LINE;
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/* run both 68k & CD hardware */
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/* run both 68k & CD hardware until end of line */
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scd_update(MCYCLES_PER_LINE);
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/* run Z80 until end of line */
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@ -919,9 +912,9 @@ void system_frame_scd(int do_skip)
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/* update 6-Buttons & Lightguns */
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input_refresh();
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if (zirq)
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if (Z80.irq_state)
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{
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/* Z80 interrupt is asserted exactly for one line */
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/* Z80 interrupt is asserted for exactly one line */
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m68k_run(mcycles_vdp + 788);
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if (zstate == 1)
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{
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@ -934,10 +927,9 @@ void system_frame_scd(int do_skip)
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/* clear Z80 interrupt */
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Z80.irq_state = CLEAR_LINE;
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zirq = 0;
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}
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/* run both 68k & CD hardware */
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/* run both 68k & CD hardware until end of line */
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scd_update(mcycles_vdp + MCYCLES_PER_LINE);
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/* run Z80 until end of line */
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@ -985,7 +977,7 @@ void system_frame_scd(int do_skip)
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/* update 6-Buttons & Lightguns */
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input_refresh();
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/* run both 68k & CD hardware */
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/* run both 68k & CD hardware until end of line */
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scd_update(mcycles_vdp + MCYCLES_PER_LINE);
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/* run Z80 until end of line */
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@ -1045,7 +1037,7 @@ void system_frame_scd(int do_skip)
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h_counter--;
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}
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/* run both 68k & CD hardware */
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/* run both 68k & CD hardware until end of line */
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scd_update(mcycles_vdp + MCYCLES_PER_LINE);
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/* run Z80 until end of line */
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@ -62,6 +62,7 @@
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#define GET_G(pixel) (((pixel) & 0x03e0) >> 5)
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#define GET_B(pixel) (((pixel) & 0x001f) >> 0)
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#endif
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/* 5:6:5 RGB */
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#elif defined(USE_16BPP_RENDERING)
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#define PIXEL(r,g,b) (((r) << 11) | ((g) << 5) | (b))
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