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[/] [zipcpu] - Rev 124

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104 An updated build script, actually builds zip-gcc. dgisselq 2976d 21h /zipcpu
103 A barely functional, but somewhat working, version of GCC to check in.
If the Lord is willing, it should be accompanied by a newlib port soon.
That port should move the GCC status from barely functional but somewhat
working to functional and working, although not (yet) complete.		 dgisselq 2977d 01h /zipcpu
102 Updated bugfix version of the binutils patch, and a first patch of GCC.
The GCC patch is undergoing ongoing and active development. It is also known to
continue to contain active bugs. (It's not done yet.)		 dgisselq 2979d 10h /zipcpu
101 Adjusted the "BREAK" instruction so that it will now disassemble properly
with an operand. This was necessary to create a (trap_if ...) instruction
for the GCC compiler.		 dgisselq 2981d 12h /zipcpu
100 Some changes to support early branching: branches are now ADD #x,PC instructions
instead of MOV #x(PC),PC--providing greater range to the CPU. When that range
is insufficient, ZPARSER now recognizes long jump instructions coded as
LOD (PC),PC followed by the jump address. (This change was made necessary by
the need to build an assembler/linker that could create instructions that would
jump to any address in the 32-bit address space. In short, a part of the
ongoing GCC upgrade and rework.)		 dgisselq 2981d 13h /zipcpu
99 Added big-endian versus little-endian functionality. You can now specify which
your input file is as a command line parameter, and zdump will properly
disassemble the file.		 dgisselq 2981d 13h /zipcpu
98 Added justed longjump instructions from the previous (not used, broken)
functionality to the new LOD (PC),PC functionality.		 dgisselq 2981d 13h /zipcpu
97 Added longjump instructions. dgisselq 2981d 13h /zipcpu
96 Added the longjump functionality, so that the assembler will properly assemble
instructions to arbitrary 32-bit addresses.		 dgisselq 2981d 13h /zipcpu
95 Fixed a bug whereby a mistaken code for CLR was masking a valid LDI of a large
integer value.		 dgisselq 2983d 19h /zipcpu

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