Daniel Steinberg dstein64
dstein64
/ printenv.s
Created
October 29, 2017 04:04
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| /*** printenv.s ***/ | |
| // Description | |
| // printenv - print the environment to stdout | |
| // Synopsis | |
| // printenv | |
| // Build | |
| // $ as --32 -o printenv.o printenv.s | |
| // $ ld -m elf_i386 -o printenv printenv.o |
dstein64
/ printenv_partial.s
Last active
October 29, 2017 04:15
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| /*** printenv.s ***/ | |
| // Description | |
| // printenv - print the environment to stdout | |
| // Synopsis | |
| // printenv | |
| // Build | |
| // $ as --32 -o printenv.o printenv.s | |
| // $ ld -m elf_i386 -o printenv printenv.o |
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| /*** echo.s ***/ | |
| // Description | |
| // echo - print arguments to stdout | |
| // Synopsis | |
| // echo [STRING]... | |
| // Build | |
| // $ as --32 -o echo.o echo.s | |
| // $ ld -m elf_i386 -o echo echo.o |
dstein64
/ echo_partial.s
Last active
October 29, 2017 04:15
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| /*** echo.s ***/ | |
| // Description | |
| // echo - print arguments to stdout | |
| // Synopsis | |
| // echo [STRING]... | |
| // Build | |
| // $ as --32 -o echo.o echo.s | |
| // $ ld -m elf_i386 -o echo echo.o |
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| .section .text | |
| # ************************************ | |
| # * print macro | |
| # * Caller is responsible for setting | |
| # * %ecx and %edx, and saving %eax and | |
| # * %ebx if necessary. | |
| # ************************************ | |
| .macro print | |
| movl $4, %eax |
dstein64
/ printenv.c
Last active
October 24, 2017 16:52
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| /*** printenv.c ***/ | |
| // Description | |
| // printenv - print the environment to stdout | |
| // Synopsis | |
| // printenv | |
| // Build | |
| // $ gcc -o printenv printenv.c | |
| #include <stdio.h> |
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| /*** echo.c ***/ | |
| // Description | |
| // echo - print arguments to stdout | |
| // Synopsis | |
| // echo [STRING]... | |
| // Build | |
| // $ gcc -o echo echo.c | |
| #include <stdio.h> |
dstein64
/ color_bash_prompt.sh
Last active
March 18, 2022 01:44
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| # fails to properly return true when running sudo -s | |
| function is_ssh_from_env() { | |
| if [ -n "${SSH_TTY}" ] || \ | |
| [ -n "${SSH_CONNECTION}" ] || \ | |
| [ -n "${SSH_CLIENT}" ]; then | |
| echo "true" | |
| else | |
| echo "false" | |
| fi | |
| } |
dstein64
/ matrix_factorization.py
Last active
September 2, 2016 15:32
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| import numpy as np | |
| import numpy.ma as ma | |
| import theano | |
| from theano import tensor as T | |
| floatX = theano.config.floatX | |
| def getmask(D): | |
| return ma.getmaskarray(D) if ma.isMA(D) else np.zeros(D.shape, dtype=bool) |
dstein64
/ matrix_factorization_compare.py
Last active
September 2, 2016 15:01
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| def matrix_factorization_quux( | |
| D, P, Q, steps=5000, alpha=0.0002, beta=0.02): | |
| K = P.shape[1] | |
| P = np.copy(P) | |
| Q = np.copy(Q) | |
| for step in xrange(steps): | |
| for i in xrange(len(D)): | |
| for j in xrange(len(D[i])): | |
| if not getmask(D)[i, j]: | |
| eij = D[i, j] - np.dot(P[i, :], Q[:, j]) |