[Simh] Trying to get SIMH on Mac OS/X

[Kevin Handy]

Dr Robert Young wrote:

>On Mac OS/X 10.4.3
>SIMH 3/5-1
>Using latest libpcap  for 10/9/2005
>
>
>Compiles/links appear to be w/out error
>
>  
>
What optimization level are you using to compile this?
What compiler/version.
Assuming GCC, you might try "-O0" to disable all optimizations.

>When I try to start Vax simulator, I get the series below. RQ and  
>nvram files all show size "0" on a ls-l.
>
>Has anyone else got it running w/ ethernet ? Any ideas?
>
>VAX simulator V3.5-1
>NVR: creating new file
>NVR: buffering file in memory
>RQ: creating new file
>RQ: creating new file
>RQ: creating new file
>File open error
>Eth: opened en0
>
>  
>
What is in your configuration file?
It would help to understand the error messages.

>KA655-B V5.3, VMB 2.7
>Performing normal system tests.
>40..39..38..37..36..35..34..33..32..31..30..29..28..27..26..25..
>24..23..22..21..20..19..18..17..16..15..14..13..12..11..10..09..
>
>?80 2 17 FF 00 0000
>
>P1=00000100  P2=00000000  P3=FFFFFFFF  P4=00000088  P5=00000000
>P6=00000000  P7=00000000  P8=03FC0000  P9=303FFE00 P10=00001FFF
>r0=00000000  r1=20088000  r2=00000000  r3=30400000  r4=03FF4000
>r5=00000000  r6=04000000  r7=30000000  r8=80000000 ERF=80000000
>
>  
>
Test 80 is "80  2004D7B2  CQBIC_memory" from typing "T 9E"
at the ">>>" prompt.

Does this error occur every time you start up, or does it occasionally
make it through the tests?

I am suspecting this is the timing problem that existed early on in
simh (ROM reads should be slower than RAM reads, iirc). Probably
related to your actual CPU speed. Not sure how this was
fixed for everyone else.

>08..07..06..05..04..03..
>Normal operation not possible.
>
>  
>