Having ground through a lot of 8-bit applications as well as bit slice and custom microsequencer designs it is easy to appreciate the 32 processors of today
Have played with most of these except the Hitachi, first processor I played with was the RCA scamp, built my first digital computer based on a Motorola 6801. Have put a lot of products in the field with 8048, 8051, 6800 and PIC based circuits. A basic slurpie machine has a 6811, and up to 5 PICs just to give you a frozen beverage.
Great material to show the shift from 8-Bit to 32-Bit in Today's Microcontroller worls, and the best part is with Today's process technologies the cost of a small entrey Level 32 Bit Micro is the same if not even lower than an 8 Bit Micro.
I have worked with some of there processsors, primarily as a graduate teaching assistant. I taught laboratories using the 8085, which was a new device at the time, and also used the 6800 a little bit. As an undergraduate I remember entering programs into an 8080 system with toggle switches. And don't forget the 6502!
I wonder if the idea is for hardware mftrs just to team up with a C/C+ or Java compiler outfit and bring out a toolchain and performance metrics and we just base our decision on the cost/metrics (and don't care anymore whether is is a dual-core chip, FPGA uCs chip or ultrafast 2-bit RISC micro, whatever).
Are you covering the architecure level info of CORTEX MO processor in upcoming letcures? Curious to know on the transistor level design practice of the architecure like static core with dynamic logic core
Are you going to provide a history of the ARM processor as well? As far as previous generations? Just a list or timeline to distinguish this one from others?
In the 8-bit days, there were fewer instructions, but many steps. The problem today is zillions of instruction variation, but quick responding. Hard to learn all these types.
@jl: I think the real significance is that the C compiler will generate instruction sequences similar to what is being presented, so that two processors at identical clock speeds take hugely different times to do the exact same line of C source code, even after the compiler does every clever thing it can to optimize.
it seems the presentation target is at the machine code and assembler code level - we all understand C code hides all this, but does not help when C is not avaiable on the platform
@phildani7 The trangles are showing the relationships of transistor density vs. data width vs. instruction size. It's a bit inscruitable to just look at it without his description.
for those experiencing adio buffering issues - try pressing the "pause" button on the left, then press the "play" button on the left - this has worked well for me.
@itxbobz Yes and no. This is the live chat page. The lecture will (should) come on automatically at 2pm EDT. Click on Today's Slide Deck and follow along with the audio portion.
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