diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2025-02-12 08:48:33 -0500 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2025-02-12 08:48:33 -0500 |
| commit | afbcca0ea41f109c2a5eae308d636dfcf98eb82b (patch) | |
| tree | 0ef2983a4d66f50a533364bd92edbebf9505d163 /target/sh4/cpu.c | |
| parent | 5f1de4d3ce025fcb70b94ebe35241130d990d889 (diff) | |
| parent | ca4c34e07d1388df8e396520b5e7d60883cd3690 (diff) | |
| download | qemu-afbcca0ea41f109c2a5eae308d636dfcf98eb82b.zip qemu-afbcca0ea41f109c2a5eae308d636dfcf98eb82b.tar.gz qemu-afbcca0ea41f109c2a5eae308d636dfcf98eb82b.tar.bz2 | |
Merge tag 'pull-target-arm-20250211' of https://git.linaro.org/people/pmaydell/qemu-arm into staging
target-arm queue:
* target/alpha: Don't corrupt error_code with unknown softfloat flags
* target/arm: Implement FEAT_AFP and FEAT_RPRES
# -----BEGIN PGP SIGNATURE-----
#
# iQJNBAABCAA3FiEE4aXFk81BneKOgxXPPCUl7RQ2DN4FAmereaQZHHBldGVyLm1h
# eWRlbGxAbGluYXJvLm9yZwAKCRA8JSXtFDYM3gyLEACglOM4E0j1hRl/JZlWD384
# nZL01Hayp9xwSNn28hkXaajCxkErTWLuCZax1g1fBvt/Yqn+E3oFan8gIybMEVgK
# 9ei6/m45fuICSQQhifvYTtYhAMd5uclr0anjRp9gN7FH6aaNPan/ZQYcKYxFq6cp
# RDTF5qiHIgTeXAlU+WiioxravL3A/D+jcQMYLEI5L+Vt5nYNM589PSNFWNLQ6W9e
# Gtmvp0uzrRSZgWxR3nOvhsn1NS/xXK90Zil+GPBo4jf82QVumqKYMsAcireOlxfk
# zTlHXH3PuonGj/ZPLxmiVKYhLb1RglQ9kIs/FHVel18QTz4dJ3DaJp8QXCNHbrKz
# 3aUwSiIh5Y/s3Q/X2Qy3jUHQ5tSjayhIhGFbn6zPdZ+2JZbIEu1Czeparddu/Zlq
# OR0CMVo2Lj/C6OakEU1/YRTKBKiNBaN1eVHi7gjzTDBdbMMC7ZlNuimpFAbthmSC
# szHzkgX8LXHzJqe4vip27yOMFBRPxvst/CXcEoPnjsLEQhLlKjOeFiHuEI+DUvaI
# 24AJ5b0FDdSOEcaFkxFD6gxW8E77MiNtBncfxDxTMKHs/4yFGiDihSPnOCANn3Kk
# zpQIwl0KJAPTA6Cldck9lY7MsKgGPTUNhEThadZlInbp4Uc6T1bvNDtB9b7osDfy
# FeposcM1+GBeuSde0yD6oQ==
# =P3wv
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 11 Feb 2025 11:24:04 EST
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* tag 'pull-target-arm-20250211' of https://git.linaro.org/people/pmaydell/qemu-arm: (68 commits)
target/arm: Sink fp_status and fpcr access into do_fmlal*
target/arm: Read fz16 from env->vfp.fpcr
target/arm: Simplify DO_VFP_cmp in vfp_helper.c
target/arm: Simplify fp_status indexing in mve_helper.c
target/arm: Remove fp_status_a32
target/arm: Remove fp_status_a64
target/arm: Remove fp_status_f16_a32
target/arm: Remove fp_status_f16_a64
target/arm: Remove ah_fp_status
target/arm: Remove ah_fp_status_f16
target/arm: Remove standard_fp_status
target/arm: Remove standard_fp_status_f16
target/arm: Introduce CPUARMState.vfp.fp_status[]
target/arm: Enable FEAT_RPRES for -cpu max
target/arm: Implement increased precision FRSQRTE
target/arm: Implement increased precision FRECPE
target/arm: Plumb FEAT_RPRES frecpe and frsqrte through to new helper
target/arm: Enable FEAT_AFP for '-cpu max'
target/arm: Handle FPCR.AH in SVE FMLSLB, FMLSLT (vectors)
target/arm: Handle FPCR.AH in SVE FMLSL (indexed)
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'target/sh4/cpu.c')
| -rw-r--r-- | target/sh4/cpu.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c index 24a2272..4ac693d 100644 --- a/target/sh4/cpu.c +++ b/target/sh4/cpu.c @@ -130,6 +130,14 @@ static void superh_cpu_reset_hold(Object *obj, ResetType type) set_default_nan_mode(1, &env->fp_status); /* sign bit clear, set all frac bits other than msb */ set_float_default_nan_pattern(0b00111111, &env->fp_status); + /* + * TODO: "SH-4 CPU Core Architecture ADCS 7182230F" doesn't say whether + * it detects tininess before or after rounding. Section 6.4 is clear + * that flush-to-zero happens when the result underflows, though, so + * either this should be "detect ftz after rounding" or else we should + * be setting "detect tininess before rounding". + */ + set_float_ftz_detection(float_ftz_before_rounding, &env->fp_status); } static void superh_cpu_disas_set_info(CPUState *cpu, disassemble_info *info) |