Unused clones
-15
Amstrad ASIC PPI
+178
Chip Variants
+218
Status register on Type 1
-3
Overview
-6
Status register on Type 1
+4
Datasheet
+1
Datasheet
+50
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0Fh - External Dataregister Port B
+7
0Fh - External Dataregister Port B
+1
0Eh - External Dataregister Port A
+1
Chip Variants
-64
PSG Registers
+24
PSG Registers
+28
PSG Registers
+84
PSG Registers
PSG Registers
PSG Registers
+4
PSG Registers
+13
PSG Registers
+235
PSG Registers
Chip Variants
+38
Chip Variants
-4
Chip Variants
+73
Chip Variants
+93
CRTC registers
+3
Interlace and Skew (R8)
+3
Interlace modes
+139
Interlace and Skew (R8)
-139
VSYNC
+1,173
Interlace and Skew (R8)
-1,150
Copy-protection
Diagnostics
+85
Graphics
-924
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+53
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+2
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+3
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+2
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+21
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+20
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+10
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+265
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+43
Desktop
-3
The 8255 in the CPC
+33
Diagnostics
+88
Emulator Detection
-1