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[/] [zipcpu/] [trunk/] - Rev 200

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180 Cleaned up the stall logic--made it independent of whether or not we are
designed to be alternating or not.
dgisselq 2809d 20h /zipcpu/trunk
179 Lots of changes, most (all?) of them to the non-pipelined core. The resulting
core is now about 100-120 LUTs smaller when not-pipelined, and yet maintains
the pipelined logic when necessary.
dgisselq 2809d 20h /zipcpu/trunk
178 Rewrote the parameter controlled logic to be just that: perameter controller,
rather than depending upon generics. The result reduces our area by a couple
LUTs.
dgisselq 2809d 20h /zipcpu/trunk
177 Fixed the illegal address logic to be more precise. dgisselq 2809d 20h /zipcpu/trunk
176 Switched from distributed to block RAM, and adjusted the logic to help
timing closure. The resulting core will build in designs up to 200MHz in
speed.
dgisselq 2809d 20h /zipcpu/trunk
175 Fixed the carry bit for logical shifts: it is the last bit shifted out of the
register. 0x80000000>>32 yields a 0 with carry set. Anything logically
shifted by a number greater than thirty two clears carry and register.
dgisselq 2809d 20h /zipcpu/trunk
174 Simplified the divide to improve timing performance. dgisselq 2809d 20h /zipcpu/trunk
173 Adjusted the pdfinfo field, to accommodate Google's bot. dgisselq 2809d 20h /zipcpu/trunk
172 Added a test to see if the compiler properly handles a large number of
arguments. Further, the sibcall enabled compiler now correcly makes a
sibcall from the end of txreg().
dgisselq 2809d 20h /zipcpu/trunk
171 This fixes the problem whereby the ZipCPU didn't properly access more than
5 word-sized function parameters.
dgisselq 2812d 01h /zipcpu/trunk

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