yes, your variant of the mod should work as well. You could also leave U13 socketed; with the 74HCT138 it is possible to make a wired-OR in inverse logic for /RAM2 and /RAM3 with Schottky-diodes instead.
You get 31231 bytes free under these conditions.eslapion wrote:How much memory would you get by moving the screen memory to $0400, basic start to $0601 along with 24k of external expansion? (using max.prg)
As of today, in ebay.com I found 2 BINs for Hitachi HM6788P-35 and Intel P51C98-45: (link). I've checked the datasheets, both their pinouts match that of the CY7C164 I used.Right now, it is impossible for me to complete the VFLI mod as I can't find any source for a 5V 16k x 4bit SRAM chip.