For |x| > 1, the infinities and NaN, titles' libc.prx stores EDOM and
raises FE_INVALID from acosf, quiet NaN included, and asinf also
raises FE_INVALID for a quiet NaN. acosf returned the same NaN bits
without either, and asinf set errno but raised nothing for a quiet NaN.
Both now call _Feraise with the invalid exception, which stores EDOM
and raises the flag in both units; the results are unchanged.
The acosf test asserted the old errno-preserving behaviour from a
FreeBSD reading; it now checks the titles' EDOM and FE_INVALID.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
This reverts merge 7fc0ae6008. On NVIDIA, where helper lanes take part in ballots, clearing helper bits from every pixel ballot breaks derivatives along triangle edges (bright lines and specks on a cloud surface in PPSA21564). See the report on #11199.
Since #9137 both throw after sceNetInit. A PS5 on firmware 13.40
returns 0 from each and prints plain-text tables to stdout. They now
print the console's layout with what the emulator knows: ifconfig an
eth0 block from the host interface sceNetCtlGetInfo reports (the same
MAC, address, netmask and MTU), the console's lo0 block and the DNS
servers; netstat the header and one entry per socket and epoll of the
title, with the self and non-blocking flags, addresses, buffer sizes and
the names given to sceNetSocket and sceNetEpollCreate, which are now
kept. The debt entry lists what the console prints that is left out.
guest_sce_net captures both outputs: the lo0 block and DNS section, a
named unbound UDP socket, a non-blocking listening TCP socket bound to
127.0.0.1, an epoll, a 40-character name cut to 31, and the entries gone
after close.
A PS5 measurement already recorded in the debt note shows queue 0x58 succeeds; raise the exclusive SubmissionQueueEnd and cover it in agc_driver_tests.
ab4a949f07 ended the "sceMbus remaining declarations" entry with "All
protected stub bodies remain unchanged." It was written on top of
afbd9b882 (#8305), which had already made sceMbusAcquireControlList
return 0x809B00FF and sceMbusTerm return 0, and the same entry says both
return constants. Drop the sentence.
The explicit binary exponent stopped accumulating near 1e9 while the
digits add 4 per character without bound, so a subject with a few
hundred million digits was classified against the wrong exponent:
0x1 followed by 3e8 zeros and p-1200000005000 kept errno, and a long
zero fraction with p+1000000000000 underflowed instead of overflowing.
Saturate the explicit exponent at 2^62, beyond what any addressable
digit run can offset, so the sum never overflows or changes sign.
Record that _Stod and _Stodx follow the title libc.prx rule for
hexadecimal underflow, unverified for libSceLibcInternal.
Refs #9691
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Keep only the gaps: the rule is measured on one title-bundled libc.prx,
and on Linux glibc 2.35's strtod rounds some hexadecimal subnormal
results a unit low.
Refs #9691
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Classify hexadecimal strtod and wcstod input from its own digits rather
than a long double approximation. As measured on God of War Ragnarok's
bundled libc.prx, ERANGE is set only on overflow or when the exact value
is below 2^-1074, and a value between 2^-1075 and 2^-1074 becomes the
smallest subnormal only from 2^-1075 * (1 + 2^-52) up.
Refs #9691
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Dean