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https://github.com/holub/mame
synced 2025-04-23 08:49:55 +03:00
Fixed documentation and confirmed the AY-8910 clock.
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@ -22,9 +22,9 @@
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1x ES2 9046 (unknown PLCC-84 IC)
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1x 8952 CM 32 (unknown DIP-40 IC)
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1x 14.31818 MHz crystal (for HMCGA video controller)
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1x 8.0000 MHz crystal. (for Z84C00HB6)
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1x 16.000 MHz crystal. (divided by 2 for Z84C00AB6)
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1x 16.0000 MHz crystal. ; Divided by 2 (through CM3080) for main CPU Z84C00HB6.
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1x 8.000 MHz crystal. ; Divided by 2 for audio CPU Z84C00AB6.
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1x 14.31818 MHz crystal ; For HMCGA video controller.
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**************************************************************************
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@ -78,6 +78,12 @@
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Screen Total: 0x38+1 * 0x7F+1 = (57 * 128) chars.
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Screen Visible: 0x28 * 0x64 = (40 * 100) chars.
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**************************************************************************
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Custom IC's...
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(soon...)
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*************************************************************************/
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#define MAIN_CLOCK XTAL_16MHz
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@ -86,7 +92,7 @@
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#define PRG_CPU_CLOCK MAIN_CLOCK /2 /* 8 MHz. */
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#define SND_CPU_CLOCK SEC_CLOCK /2 /* 4 MHz. */
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#define SND_AY_CLOCK SEC_CLOCK /4 /* 2 MHz.? (guess) */
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#define SND_AY_CLOCK SEC_CLOCK /4 /* 2 MHz. */
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#define CRTC_CLOCK SEC_CLOCK /2 /* 8 MHz. */
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