8085 project

Remember, the reset vector and interrupt vectors on an 8085 are in low memory. This has some bearing on where you place your ROM... I would use A15 both as a chip select for the RAM and as an enable for the '138; wire up the '138 to select one of 4 8-k banks in the other half of the memory space (a '139 or discrete gates would also work OK). These banks would be the 8K RAM, 16K EEPROM, and UART. To keep yourself from going totally crazy writing code for this beast, I would put the 8K and 32K RAMs next to each other in memory.
/mike