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Bookmark or Share- Memory sharing mechanism in the Amstrad CPC computer15. In the Amstrad CPC464 (and I guess it's the same for CPC664 and 6128), the CRTC and the gate array work together to build the display image: every microsecond, the CRTC puts a memory address and a byte is read, and the gate array receives that byte and converts it to pixels. The following picture displays the CRTC -> memory interface.
- How long are interrupt requests remembered on the Amstrad CPC?In the CPC the Gate Array generates maskable interrupts, to do this it uses the HSYNC and VSYNC signals from the CRTC, a 6-bit internal counter and monitors the interrupt acknowledge from the Z80. When [counter conditions are met] the Gate-Array will issue a interrupt request to the Z80, the interrupt request remains active until the Z80 ...
- Is it possible to use an Amstrad CPC464 with a modern monitor or TVYes, it is possible. There are a number of ways: If your TV has a SCART connector, you need a cable adapter from DIN 6 to SCART, wired like this (the audio is taken from the audio out using a standard stereo 3.5'' jack):
- In the Amstrad CPC's Mode 0, what was the design rationale for ...I am not an expert in Amstrad CPC at all, however I can see some regularities, for example: Not grouping pixel bits in halves (like pixel 0 takes bits 7..4 and pixel 1 takes bits 3..0) allows one to use single shift register, that always shifts by 1 bit.
- floppy drive - Amstrad CPC6128 disc starting to fail? - Retrocomputing ...6. 'Disc missing' may indicate that the disk is not spinning fast enough, or the index hole sensor is not working properly. The most likely cause is a bad belt. If the computer is left idle for long periods the belt tends to deform where it goes around the motor pulley.
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