Paul Mackerras 59992eab90 FPU: Avoid doing overflow processing twice in OE=1 case ...

Split the ROUND_OFLOW state into two, one which handles the OE=0 case
(disabled overflow exception) and one which handles the OE=1 case
(enabled overflow exception).  This avoids a loop in the state diagram
and prevents us from adding the exponent bias twice.

Also correct a bug in ROUNDING_3 state where for single-precision
operations which yield a result which is denormal in double-precision
format, r.shift was set wrongly.

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

2025-12-15 08:45:23 +11:00

..

fpu.c

FPU: Avoid doing overflow processing twice in OE=1 case

2025-12-15 08:45:23 +11:00

head.S

tests/fpu: Add tests for basic FPSCR function and interrupt generation

2020-09-03 17:44:20 +10:00

Makefile

tests: Add a test for FP loads and stores

2020-09-03 15:15:45 +10:00

powerpc.lds

tests: Add a test for FP loads and stores

2020-09-03 15:15:45 +10:00