Changes
/* Emulator accuracy checking tools */
*[https://www.cpc-power.com/index.php?page=detail&num=10401 Test CRTC v3.0] Identify CRTC type
*[https://cpcrulez.fr/coding_src-demo-smooth_crtc_register_3_scrolling_test.htm Smooth CRTC Register 3 scrolling test]
*[https://www.planetemu.net/rom/amstrad-cpc-applications-dsk/crtc-editor-v5-1-1994-brain-of-chaos CRTC editor v5.1]
*[https://www.cpc-power.com/index.php?page=detail&num=12906 HSYNC test]
*[https://www.cpc-power.com/index.php?page=detail&num=16466 Split-Rasters Test CRTC1]
*[https://www.cpc-power.com/index.php?page=detail&num=18998 4096k Tester] Amstrad Plus palette tester
