Re: 6502 to 7501/8501 converter

From: Jim Brain <brain_at_jbrain.com>
Date: Mon, 18 Jun 2018 03:04:56 -0500
Message-ID: <14034f68-7057-11ce-6480-a2a5203fc02a@jbrain.com>
Is there a document that explains the purpose of MUX/GATE_IN?  Why did 
the 264 series need to latch the R/W line and why did they need to do it 
in the CPU in such an inefficient way?  It would seem routing through 
TED or maybe a few transistors (Bil notes that there was an edict to 
keep IC count low) would have been far better, as NMI was given up, a 
huge loss.
Received on 2018-06-18 11:00:18

Archive generated by hypermail 2.2.0.