[HP 71B] Software for FRAM71 users

[Dave Frederickson]

Hi André

(02-06-2017 09:26 PM)dayd Wrote:  

(02-05-2017 10:09 PM)Dave Frederickson Wrote:  It appears the HP-IL module is always configured on a 32k boundary. I wonder why that is?

According to the rules we talk about, HP-IL ROM is always in a 16k boundary which can be addresses X0000 to X7FFF or X8000 to XFFFF but because HP-IL is lower in port number it gets its address attributed before others 16k or less chips, at X0000 and if there isn’t another 16k or less ROM/IRAM the next 16k boundary at X8000 to XFFFF cannot be filled (the loss of address space can be lower if HP-IL address is at F0000).
As passionate as you are about it, you probably already figure that out by now.

Doesn't answer my question. This behavior is not limited to the HP-IL ROM. No matter what, ROM/IRAM configuration always starts on a 32k boundary.

Regards, Dave