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[/] [zipcpu] - Rev 139

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119 Fixed some limits bugs. Now LDI.Z 1 produces LDIHI.Z 0, LDOLO.Z 1 as desired
instead of the erroneous BREV.Z 0. Likewise, loading 0x80000000 no longer
produces a clear instruction, but actually loads the value of interest.
dgisselq 2968d 11h /zipcpu
118 Fixes two bugs: 1) in the early branching code within the instruction decoder.
This prevented the early branching from working when built with Xilinx's tools,
while the code worked with Verilator. 2) The CPU was not working with the
traditional cache and early branching disabled. These two bugs masked each
other. The replacement code is simpler.
dgisselq 2968d 14h /zipcpu
117 Bug fixes: This adds the zip_ucc() instruction as a builtin, fixes the zip_cc()
builtin (both are now unspec_volatile) together with fixing the *_context(int*)
builtins so that they use five registers, never four. Further, this fixes the
negative stack space offset bug. Many of the GCC files now have Zip debugging
hooks within them as well, to simplify further debugging of the compiler.
dgisselq 2968d 22h /zipcpu
116 Updated binutils. This fixes problems with linking global variables, fixes
the map file report, adjusts the LJMP instruction disassembly to display the
resulting address, as well as in general fixing up link problems when
sizeof(byte) is 32-bits.
dgisselq 2968d 22h /zipcpu
115 A bug fix, applies to when there are more than 9 interrupt lines into the CPU. dgisselq 2968d 22h /zipcpu
114 Fixes a bug that killed make binutils before the build-gas directory
was created.
dgisselq 2973d 23h /zipcpu
113 Bug fix: the Makefile wasn't building gcc, and the binutils would not allocate
space for common variables or zero'd (bss) variables properly. Several binutils
bugs were fixed to get variables to be allocated properly. Those are
reflected in this updated patch.
dgisselq 2974d 02h /zipcpu
112 Removed some debugging code from the compiler. dgisselq 2976d 22h /zipcpu
111 Bug fix compiler update! This fixes a lot of the bugs associated with the
previous compiler release.
dgisselq 2976d 22h /zipcpu
110 The makefile no longer requires (or supports) building the obsolete machine
code test file optest.
dgisselq 2976d 22h /zipcpu

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