AdSpeed ST

Last weeekend at the Duesseldorf Atari Fair, ICD introduced their exciting new AdSpeed ST accelerator to a crowd of over 50,000. The reception was exceptional.


The features are numerous: -------------------------- AdSpeed is a 16 MHz 68000 cached accelerator that switches between 16 MHz mode with a 32K cache (16K data & instruction cache with 16K cache tag RAM)... and a true 8 MHz mode with the cache off. This allows full compatibility with all software in the normal mode an 99+% PLUS compatibi- lity in the high speed mode. AdSpeed will not keep you from any of your software. The unbelievable part is that the speed can be changed "on the fly" with a simple desk accessory. As ICD demonstrated at Duesseldorf, you can be running an application like calamus with a document loaded and pull down the DA to chance speeds at any time! AdSpeed QINDEX times are as good or better than all other 16MHz 68000 based accelerators. AdSpeed ST is smaller than all the others and will fit in all ST models with no jumper wires needed. (The old CPU must be removed and a socket installed.) AdSpeed uses SMD technology with a multilayer PCB and highly integr- ated logic to keep the performance up and the size down. No shortcuts were taken. With this design compatibility is assured. But would you expect less from ICD? ICD fully intends this be to the most compatible and trouble free accelerator design available. ICD taken note of all the problems the others are having (there are others besides T-16). Blitter problems seem to be big with some. Since ICD only has about 5 blitter STs in our of- fices, and there seem to be some "experts" out there that have.. or had blitter problems with accelerators, do you mind sharing your troubled blitters with us? ICD needs blitters that would not work at 16 MHz with other accelerators but work fine in a stock ST computer. Assuming you have replaced the "bad" blitter with a new model, ICD will pay $20 for each blitter that ICD can use. Or $100 off the $299.95 retail price.. if you would like to purchase an AdSpeed ST directly from ICD. Please send your offers to: ICDINC in EMAIL and Please include the brand name of the chip: i.e. SGS-Thompson, Ricoh, National Semi, etc. AdSpeed ST has been tested with and is fully compatible with Spectrum 512 in the 8 Mhz mode! ICD has also successfully tested AdSpeed ST with Calamus, Omikron BASIC, and other software. No blitters have caused any problems but ICD is still searching for some of the elusive "bad" blitters to test. If you have one you would like to sell or trade, please leave ICD EMAIL. Big screen monitors will be tested shortly. Quick Index 2.1 was used to run the following benchmarks (the same times also result using Quick Index 1.5) The computer under test was a USA version Mega 2 with TOS 1.4 using floppy disk drive A: With the Blitter OFF and AdSpeed ST in 16 Mhz mode and no resident software loaded. CPU memory 164% CPU register 204% CPU divide 203% CPU shifts 207% DMA 64K read 100% GEMDOS files 100% Disk (RPM) 300 TOS text 161% TOS string 158% TOS scroll 114% GEM dialog 166% With the Blitter ON and AdSpeed ST in 16 Mhz mode and no resident software loaded. CPU memory 164% CPU register 204% CPU divide 203% CPU shifts 207% DMA 64K read 100% GEMDOS files 100% Disk (RPM) 300 TOS text 122% TOS string 123% TOS scroll 133% GEM dialog 163% With the Blitter OFF and AdSpeed ST in 16 Mhz mode and Turbo ST 1.82 loaded. CPU memory 164% CPU register 204% CPU divide 203% CPU shifts 207% DMA 64K read 100% GEMDOS files 100% Disk (RPM) 300 TOS text 521% TOS string 2001% TOS scroll 144% GEM dialog 461% With the Blitter ON and AdSpeed ST in 16 Mhz mode and Turbo ST 1.82 loaded. CPU memory 164% CPU register 204% CPU divide 203% CPU shifts 207% DMA 64K read 100% GEMDOS files 100% Disk (RPM) 300 TOS text 521% TOS string 2001% TOS scroll 137% GEM dialog 438% With the Blitter OFF and AdSpeed ST in 8 Mhz mode and no resident software loaded. CPU memory 100% CPU register 100% CPU divide 100% CPU shifts 100% DMA 64K read 100% GEMDOS files 100% Disk (RPM) 300 TOS text 100% TOS string 100% TOS scroll 100% GEM dialog 100% With the Blitter ON and AdSpeed ST in 8 Mhz mode and no resident software loaded. CPU memory 100% CPU register 100% CPU divide 100% CPU shifts 100% DMA 64K read 100% GEMDOS files 100% Disk (RPM) 300 TOS text 110% TOS string 106% TOS scroll 132% GEM dialog 133% Thanks to Darek Mihocka for Quick Index 2.1.

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