Complete stack cache implementation in zpu_core_evo

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Bring in the completed stack cache feature (from .vhd.new) that was
started but not committed. Adds MAX_STCACHE_BITS generic, stack cache
signals, CACHEST instantiation, and associated logic. Fixes EVO and
EVO_MINIMAL FPGA build failures caused by zpu_soc.vhd referencing
the missing MAX_STCACHE_BITS parameter.

Previous version saved as zpu_core_evo.vhd.pre_stcache.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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This commit is contained in:

Philip Smart

2026-03-17 14:42:20 +00:00

parent 4958b2d4cf

commit 3d91ee7d6d

2 changed files with 4244 additions and 197 deletions

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753

cpu/zpu_core_evo.vhd

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3688

cpu/zpu_core_evo.vhd.pre_stcache Executable file

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