predecode: Add more comments to row_predecode_rom and insn_code values
authorPaul Mackerras <paulus@ozlabs.org>
Thu, 4 Aug 2022 05:25:06 +0000 (15:25 +1000)
committerPaul Mackerras <paulus@ozlabs.org>
Tue, 9 Aug 2022 10:14:44 +0000 (20:14 +1000)
commit58e799b3504090451d5ffb32352d665ec187a0b8
tree091827feb1bdf15d574fc93b64fb47dc1b7d7c78
parent6db626d24547b96bce576c8c3fdf2790c7d6c7ce
predecode: Add more comments to row_predecode_rom and insn_code values

This adds comments to row_predecode_rom to aid understanding how the
columns in the second half of the table are allocated to different
primary opcodes, and to the insn_code values to assist in locating the
code with a given numeric value.  No code change.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
decode_types.vhdl
predecode.vhdl