another bizarre architecture
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From: John Larkin on 31 Jan 2007 14:03 This looks really weird to me... http://www.maxim-ic.com/appnotes.cfm/appnote_number/3960 Does it resemble anything you've ever seen? It looks truly ghastly to program. For example, allowing printf() to use floats adds 3500 bytes to a program binary. John
From: larwe on 31 Jan 2007 14:06 On Jan 31, 2:03 pm, John Larkin <jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote: > This looks really weird to me... > > http://www.maxim-ic.com/appnotes.cfm/appnote_number/3960 MAXQ is aimed at very low power consumption applications. They have been trying desperately to sell it to us. Unfortunately for any real project we've considered, MSP430 is indistinguishable from MAXQ power- wise. We have a lot of investment in ARM, AVR and MSP430; MAXQ is just "yet another proprietary microcontroller" with no really compelling feature. No sale.
From: Jan Panteltje on 31 Jan 2007 14:16 On a sunny day (Wed, 31 Jan 2007 11:03:03 -0800) it happened John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in <vap1s2ttifuhnct6n0101qvn1uhn504jpc(a)4ax.com>: >This looks really weird to me... > >http://www.maxim-ic.com/appnotes.cfm/appnote_number/3960 > >Does it resemble anything you've ever seen? It looks truly ghastly to >program. For example, allowing printf() to use floats adds 3500 bytes >to a program binary. > >John That last example: Remember Z80 compare increase and repeat? And that was one instruction. It also has otir (out increase and repeat). Well, OK, I guess their system works..... But I sort of do not see the advantage. It is faster then PIC io... but many processors allow direct access to io / or memory [mapped io], also with indexes. Anyways you can program your own in FPGA, opencores.org has a processor generator. Each his own processor :-) OK, now to write all the assemblers and compilers.
From: Vladimir Vassilevsky on 31 Jan 2007 14:16 John Larkin wrote: > This looks really weird to me... > > http://www.maxim-ic.com/appnotes.cfm/appnote_number/3960 > > Does it resemble anything you've ever seen? Just another small 16-bitter. From Maxim, which sounds like never use it. It looks truly ghastly to > program. Coding at low level is a task of compiler. BTW, do they provide decent tools for MAXQ? For example, allowing printf() to use floats adds 3500 bytes > to a program binary. I'd say this is not unusual for the printf() overhead. Vladimir Vassilevsky DSP and Mixed Signal Design Consultant http://www.abvolt.com
From: Jim Stewart on 31 Jan 2007 14:17
John Larkin wrote: > This looks really weird to me... > > http://www.maxim-ic.com/appnotes.cfm/appnote_number/3960 > > Does it resemble anything you've ever seen? It looks truly ghastly to > program. For example, allowing printf() to use floats adds 3500 bytes > to a program binary. It looks more like writing a cpu's microcode than traditional assembly language. Which might be fun if you're into that sort of thing. |