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cosmopolitan/libc/tinymath/log1pl.S

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Polish up repository and other revisions
2020-06-16 13:38:43 +00:00
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
Initial import
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
Change license
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│ 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. │
Initial import
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│ │
Change license
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│ 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. │
Initial import
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╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.h"
Add scouts honor escape hatch for source embedding
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.source __FILE__
Initial import
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Get codebase completely working with LLVM You can now build Cosmopolitan with Clang: make -j8 MODE=llvm o/llvm/examples/hello.com The assembler and linker code is now friendly to LLVM too. So it's not needed to configure Clang to use binutils under the hood. If you love LLVM then you can now use pure LLVM.
2021-02-08 17:19:00 +00:00
// Returns log(𝟷+𝑥).
//
// @param 𝑥 is an 80-bit long double passed on stack in 16-bytes
// @return result of exponentiation on FPU stack in %st
Remove sun musl fdlibm math library The libm code from musl wasn't being used since most of these functions are implemented using x87 which goes faster than a library intended for risc machines.
2021-02-01 02:25:16 +00:00
log1pl:
Add x86_64-linux-gnu emulator I wanted a tiny scriptable meltdown proof way to run userspace programs and visualize how program execution impacts memory. It helps to explain how things like Actually Portable Executable works. It can show you how the GCC generated code is going about manipulating matrices and more. I didn't feel fully comfortable with Qemu and Bochs because I'm not smart enough to understand them. I wanted something like gVisor but with much stronger levels of assurances. I wanted a single binary that'll run, on all major operating systems with an embedded GPL barrier ZIP filesystem that is tiny enough to transpile to JavaScript and run in browsers too. https://justine.storage.googleapis.com/emulator625.mp4
2020-08-25 11:23:25 +00:00
push %rbp
Initial import
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mov %rsp,%rbp
.profilable
fldt 16(%rbp)
fld %st
fabs
fldt .LC16(%rip)
Fix bugs and have emulator emulate itself
2020-08-31 12:17:31 +00:00
fxch
Initial import
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fcomip %st(1),%st
fstp %st
jnb 1f
fldln2
Fix bugs and have emulator emulate itself
2020-08-31 12:17:31 +00:00
fxch
Initial import
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fyl2xp1
0: pop %rbp
ret
1: fld1
faddp %st,%st(1)
fldln2
Fix bugs and have emulator emulate itself
2020-08-31 12:17:31 +00:00
fxch
Initial import
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fyl2x
jmp 0b
Remove sun musl fdlibm math library The libm code from musl wasn't being used since most of these functions are implemented using x87 which goes faster than a library intended for risc machines.
2021-02-01 02:25:16 +00:00
.endfn log1pl,globl
Initial import
2020-06-15 14:18:57 +00:00
Add x86_64-linux-gnu emulator I wanted a tiny scriptable meltdown proof way to run userspace programs and visualize how program execution impacts memory. It helps to explain how things like Actually Portable Executable works. It can show you how the GCC generated code is going about manipulating matrices and more. I didn't feel fully comfortable with Qemu and Bochs because I'm not smart enough to understand them. I wanted something like gVisor but with much stronger levels of assurances. I wanted a single binary that'll run, on all major operating systems with an embedded GPL barrier ZIP filesystem that is tiny enough to transpile to JavaScript and run in browsers too. https://justine.storage.googleapis.com/emulator625.mp4
2020-08-25 11:23:25 +00:00
.rodata.cst16
Initial import
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.LC16: .long 205731576
.long 2515933592
.long 16381
.long 0
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