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speccery

Member Since 31 Jan 2016
Offline Last Active Mar 29 2019 7:57 AM

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Inserted BLWP @>1360 instruction at >7DC - - - - -

FPGA CPU debugging: extended Basic

  • 5 images
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Side view - - - - -

ET-PEB V2 PCB

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Debugging on going, thank god for logic analyzers! My TI is dusty! - - - - -

ET-PEB

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The boards nicely sits on top of the Pepino - - - - -

TMS99105 shield for Pepino FPGA

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TMS99105 + FPGA system emulating TI-99/4A running vertical bars demo by Asmusr - - - - -

TI Demos (99/4A, TMS99105)

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Images

Test program under extended Basic - - - - -

Test program under extended Basic

in FPGA CPU debugging: extended Basic
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  • 25 views
Second intercept destination - - - - -

Second intercept destination

in FPGA CPU debugging: extended Basic
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  • 24 views
The second intercept point at the end of subtract (or actually rounding) - - - - -

The second intercept point at the end of subtract (or actually rounding)

in FPGA CPU debugging: extended Basic
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  • 19 views
The code jumped to from intercept at beginning of subtract - - - - -

The code jumped to from intercept at beginning of subtract

in FPGA CPU debugging: extended Basic
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  • 23 views
Inserted BLWP @>1360 instruction at >7DC - - - - -

Inserted BLWP @>1360 instruction at >7DC

in FPGA CPU debugging: extended Basic
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  • 27 views
Another side view - - - - -

Another side view

in ET-PEB V2 PCB
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  • 181 views
Front view - - - - -

Front view

in ET-PEB V2 PCB
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  • 171 views
Side view - - - - -

Side view

in ET-PEB V2 PCB
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  • 189 views
Debugging on going, thank god for logic analyzers! My TI is dusty! - - - - -

Debugging on going, thank god for logic analyzers! My TI is dusty!

in ET-PEB
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  • 88 views
IMG 7447 - - - - -

IMG 7447

in ET-PEB
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  • 141 views
ET-PEB - top view - - - - -

ET-PEB - top view

in ET-PEB
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  • 83 views
ET-PEB first prototype being tested and debugged - side view - - - - -

ET-PEB first prototype being tested and debugged - side view

in ET-PEB
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  • 119 views
TMS99105 refusing to perform microstore access, under the analyser - - - - -

TMS99105 refusing to perform microstore access, under the analyser

in TMS99105 shield for Pepino FPGA
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  • 140 views
TMS99105 running as TMS99110 signals - - - - -

TMS99105 running as TMS99110 signals

in TMS99105 shield for Pepino FPGA
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  • 109 views
TMS99105 (chip 2) running TMS99110 instruction CIR - success - - - - -

TMS99105 (chip 2) running TMS99110 instruction CIR - success

in TI Demos (99/4A, TMS99105)
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  • 114 views
TMS99105 (chip 1) running TMS99110 instruction CIR - failure - - - - -

TMS99105 (chip 1) running TMS99110 instruction CIR - failure

in TI Demos (99/4A, TMS99105)
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  • 114 views
Testing that components match the board layout before production - - - - -

Testing that components match the board layout before production

in ET-PEB
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  • 123 views
My TMS9900 CPU on the FPGA for the first time renders the boot picture properly! - - - - -

My TMS9900 CPU on the FPGA for the first time renders the boot picture properly!

in FPGA CPU
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  • 231 views
TMS99105 + FPGA system emulating TI-99/4A running vertical bars demo by Asmusr - - - - -

TMS99105 + FPGA system emulating TI-99/4A running vertical bars demo by Asmusr

in TI Demos (99/4A, TMS99105)
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  • 182 views
Before trigger, -18 microseconds, we see the bogus read from ROM - - - - -

Before trigger, -18 microseconds, we see the bogus read from ROM

in FinalGROM99 debugging
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  • 190 views
Trigger occurred, this is the memory write - - - - -

Trigger occurred, this is the memory write

in FinalGROM99 debugging
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  • 176 views
Error occurred - - - - -

Error occurred

in FinalGROM99 debugging
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  • 118 views
Initial testing setup - - - - -

Initial testing setup

in FinalGROM99 debugging
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  • 138 views
Monkey Island Demo (512K) running of the Pipistrello FPGA "cartridge" - - - - -

Monkey Island Demo (512K) running of the Pipistrello FPGA "cartridge"

in TI99FPGA
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  • 290 views
Timing diagram showing how the 16-bit bus is multiplexed - - - - -

Timing diagram showing how the 16-bit bus is multiplexed

in TMS99105 shield for Pepino FPGA
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  • 251 views
Fully assembled and working TMS99105 shield board - - - - -

Fully assembled and working TMS99105 shield board

in TMS99105 shield for Pepino FPGA FPGA, TMS99105, TI-99/4A
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  • 326 views
DSC00870 - - - - -

DSC00870

in TMS99105 shield for Pepino FPGA
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  • 175 views
DSC00869 - - - - -

DSC00869

in TMS99105 shield for Pepino FPGA
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  • 171 views
Audio jack and SD card accessible - - - - -

Audio jack and SD card accessible

in TMS99105 shield for Pepino FPGA
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  • 137 views
Bottom side with connectors - - - - -

Bottom side with connectors

in TMS99105 shield for Pepino FPGA
  • 0 comments
  • 129 views