Yukihiro "Matz" Matsumoto 14a5cfb87f etc.c: lossless rotation encoding for 32-bit float32 word boxing ...

replace lossy 2-bit truncation with rotation-based encoding for
32-bit + MRB_USE_FLOAT32, matching the technique used for 64-bit
float64. rotl32(bits - ADDEND, 3) maps biased exponents [95, 158]
(actual [-32, +31]) to properly tagged inline values with zero
precision loss. special values (0, Inf, NaN) use sentinel constants;
out-of-range floats fall back to heap-allocated RFloat.

also fix a pre-existing alignment issue: RVALUE was 20 bytes on
32-bit, causing 4-byte-aligned objects to be misidentified as
immediates by word boxing (WORDBOX_IMMEDIATE_MASK=0x07 requires
8-byte alignment). pad RVALUE to 24 bytes on 32-bit + float32.

Co-authored-by: Claude <noreply@anthropic.com>

2026-02-22 17:51:01 +09:00

..

mruby

etc.c: lossless rotation encoding for 32-bit float32 word boxing

2026-02-22 17:51:01 +09:00

mrbconf.h

symbol.c: implement adaptive symbol table for memory efficiency

2025-08-14 10:53:08 +09:00

mruby.h

class.c: allocate ROM table wrappers per mrb_state

2026-02-20 22:24:31 +09:00