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Make considerably more progress on AARCH64

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- Utilities like pledge.com now build
- kprintf() will no longer balk at 48-bit addresses
- There's a new aarch64-dbg build mode that should work
- gc() and defer() are mostly pacified; avoid using them on aarch64
- THIRD_PART_STB now has Arm Neon intrinsics for fast image handling
This commit is contained in:
Justine Tunney 2023-05-12 22:42:57 -07:00
parent 1bfb3aab1b
commit fd34ef732d
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GPG key ID: BE714B4575D6E328
91 changed files with 1288 additions and 1192 deletions
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dsp/tty/windex.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2023 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "dsp/tty/windex.h"
#include "dsp/tty/tty.h"
#include "libc/nexgen32e/x86feature.h"
extern unsigned windex_avx2(uint16_t *, size_t);
extern unsigned windex_sse4(uint16_t *, size_t);
extern unsigned windex_k8(uint16_t *, size_t);
unsigned (*windex)(uint16_t *, size_t);
__attribute__((__constructor__)) static void init_windex(void) {
#ifdef __x86_64__
if (X86_HAVE(AVX2)) {
windex = windex_avx2;
} else if (X86_HAVE(SSE4_2)) {
windex = windex_sse4;
} else {
windex = windex_k8;
}
#else
windex = windex_k8;
#endif
}