vasilito
c825f470cb
redbear-ci / check (push) Has been cancelled
kf6-kwallet's kwalletbackend hard-requires LibGcrypt 1.5.0 for PBKDF2 key derivation and the GPG-backed wallet format. Vendor both libraries under the full-fork model (committed source/, offline-reproducible) and add libgcrypt to kf6-kwallet's dependencies. Release tarballs ship a pre-generated configure and a config.sub that already recognises the *-redox triple, so no autotools regeneration is needed at cook time. libgpg-error supplies a generic pthread-backed gpgrt_lock_t for Redox via its build script; the test-only redox.patch (tms/times stub) is baked into libgcrypt's source and kept alongside for future version bumps. Promoted from the stale recipes/wip copies (now .disabled).
This directory contains mpn functions for various HP PA-RISC chips. Code that runs faster on the PA7100 and later implementations, is in the pa7100 directory. RELEVANT OPTIMIZATION ISSUES Load and Store timing On the PA7000 no memory instructions can issue the two cycles after a store. For the PA7100, this is reduced to one cycle. The PA7100 has a lookup-free cache, so it helps to schedule loads and the dependent instruction really far from each other. STATUS 1. mpn_mul_1 could be improved to 6.5 cycles/limb on the PA7100, using the instructions bwlow (but some sw pipelining is needed to avoid the xmpyu-fstds delay): fldds s1_ptr xmpyu fstds N(%r30) xmpyu fstds N(%r30) ldws N(%r30) ldws N(%r30) ldws N(%r30) ldws N(%r30) addc stws res_ptr addc stws res_ptr addib Loop 2. mpn_addmul_1 could be improved from the current 10 to 7.5 cycles/limb (asymptotically) on the PA7100, using the instructions below. With proper sw pipelining and the unrolling level below, the speed becomes 8 cycles/limb. fldds s1_ptr fldds s1_ptr xmpyu fstds N(%r30) xmpyu fstds N(%r30) xmpyu fstds N(%r30) xmpyu fstds N(%r30) ldws N(%r30) ldws N(%r30) ldws N(%r30) ldws N(%r30) ldws N(%r30) ldws N(%r30) ldws N(%r30) ldws N(%r30) addc addc addc addc addc %r0,%r0,cy-limb ldws res_ptr ldws res_ptr ldws res_ptr ldws res_ptr add stws res_ptr addc stws res_ptr addc stws res_ptr addc stws res_ptr addib