18 Jun
2005
18 Jun
'05
9:47 a.m.
On 6/18/05, Allison <ajp166 at bellatlantic.net> wrote:
You could but only to the extent that you'd then
have to copy to core
for execution. ROM on PDP-8 is a tricky thing as subroutine calls
(JSR instruction) puts the return address at the first word of the
subroutine. Hard to do that in ROM {yes DEC did have a rom/ram
board to fake that.}
I think in this case, the JSR/ROM issue is moot... doesn't the M8317
'toggle' the boot into low core? I didn't think M8317 PROMs were
memory mapped.
-ethan