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# Change these variables as necessary. | |
main_package_path = ./cmd/example | |
binary_name = example | |
# ==================================================================================== # | |
# HELPERS | |
# ==================================================================================== # | |
## help: print this help message | |
.PHONY: help |
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/* | |
* John Conway's Game of Life. | |
* | |
* This is written for POSIX, using Curses. Resizing of the terminal is not | |
* supported. | |
* | |
* By convention in this program, x is the horizontal coordinate and y is | |
* vertical. There correspond to the width and height respectively. | |
* The current generation number is illustrated when show_generation is set. | |
* |
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package utils | |
import ( | |
"context" | |
"io" | |
"io/ioutil" | |
"net" | |
"net/http" | |
"strings" | |
"time" |
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#include "MFRC522/MFRC522.h" | |
/* | |
Function Core Pin MRFC522 Pin | |
Reset D2 RST | |
SPI SS D1 SDA | |
SPI MOSI A5 MOSI | |
SPI MISO A4 MISO | |
SPI SCK A3 SCK | |
*/ |
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package main | |
import ( | |
"bytes" | |
"fmt" | |
"io" | |
"log" | |
"mime/multipart" | |
"net/http" | |
"os" |
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Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |