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9700Re: The Elf 2000 PCBs and GALs are available again

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  • Al
    Mar 1, 2012
      Thanks Bob. I didn't realize there was so much packed in there! I also located the switch setting info that you referenced.

      al
      ....

      --- In cosmacelf@yahoogroups.com, "Bob Armstrong" <bob@...> wrote:
      >
      > > Is there a mememory map available for that very tempting Elf 2000 software
      > EPROM?
      >
      > Do you really mean a memory map? Or are you really asking for a
      > description of what's in the EPROM? Assuming you mean what you said, here
      > it is
      >
      >
      > Elf 2000 EPROM Layout
      >
      >
      >
      > Segment
      >
      >
      >
      > Start
      >
      > Allocation
      >
      > Size
      >
      > Free
      >
      > Utilization
      >
      >
      > BOOTS
      >
      > $
      >
      > 8000
      >
      > 7936
      >
      > 7.75
      >
      > K
      >
      > 5618
      >
      > 2318
      >
      > 71%
      >
      >
      > HELP
      >
      > $
      >
      > 9F00
      >
      > 2304
      >
      > 2.25
      >
      > K
      >
      > 2218
      >
      > 86
      >
      > 96%
      >
      >
      > VIDEO
      >
      > $
      >
      > A800
      >
      > 2048
      >
      > 2.00
      >
      > K
      >
      > 1724
      >
      > 324
      >
      > 84%
      >
      >
      > rcBASIC
      >
      > $
      >
      > B000
      >
      > 7424
      >
      > 7.25
      >
      > K
      >
      > 6324
      >
      > 1100
      >
      > 85%
      >
      >
      > SEDIT
      >
      > $
      >
      > CD00
      >
      > 768
      >
      > 0.75
      >
      > K
      >
      > 675
      >
      > 93
      >
      > 88%
      >
      >
      > EDTASM
      >
      > $
      >
      > D000
      >
      > 4096
      >
      > 4.00
      >
      > K
      >
      > 2965
      >
      > 1131
      >
      > 72%
      >
      >
      > rcFORTH
      >
      > $
      >
      > E000
      >
      > 4864
      >
      > 4.75
      >
      > K
      >
      > 4364
      >
      > 500
      >
      > 90%
      >
      >
      > BIOS
      >
      > $
      >
      > F300
      >
      > 3328
      >
      > 3.25
      >
      > K
      >
      > 3232
      >
      > 96
      >
      > 97%
      >
      >
      > Totals
      >
      >
      >
      >
      >
      > 32768
      >
      > 32
      >
      > K
      >
      > 27120
      >
      > 5648
      >
      > 83%
      >
      > This is for v87.
      >
      > > Also are any of the EFx input ports free?
      >
      > Depends on what options you've installed and how you set the jumpers.
      > Here's a table of the I/O ports used
      >
      >
      > Elf 2000 I/O Port Assignments
      >
      >
      > Port
      >
      > Input
      >
      > Output
      >
      >
      > 1
      >
      > ELF2K/CDP1861 Video ON
      > 80 Col Video Status
      >
      > ELF2K/CDP1861 Video OFF
      > 80 Col Video Command
      > Sound Card Register Select
      >
      >
      > 2
      >
      >
      >
      > Disk/UART/RTC Control
      >
      >
      > 3
      >
      > Disk/UART/RTC Data
      >
      > Disk/UART/RTC Data
      >
      >
      > 4
      >
      > ELF2K Switches
      >
      > ELF2K and EELF LEDS
      >
      >
      > 5
      >
      > 80 Col Video Data
      > Sound Card Data
      >
      > 80 Col Video Data
      > Sound Card Data
      >
      >
      > 6
      >
      > 8255 PPI (GPIO)
      >
      > 8255 PPI (GPIO)
      >
      >
      > 7
      >
      > PS/2 Keyboard Data
      >
      > GPIO Control
      >
      > And the EF flags used
      >
      >
      > Elf 2000 External Flag Assignments
      >
      >
      >
      > Flag
      >
      > Used By
      >
      >
      > EF1
      >
      > CDP1861 Frame Sync
      > 80 Col Video VRTC
      >
      >
      > EF2
      >
      > PS/2 Keyboard Data Ready
      >
      >
      > EF3
      >
      > RXD (ELF2K, EELF)
      >
      >
      > EF4
      >
      > INPUT Switch
      > PS/2 Keyboard Data Ready (Alternate)
      > RXD (Alternate)
      >
      >
      > Q
      >
      > TXD (ELF2K, EELF)
      >
      > Bob
      >
      >
      >
      > [Non-text portions of this message have been removed]
      >
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