bulk: changing experiments structure and how i use it.

machine/even-odd/.gitignore

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+isEven.bin

machine/even-odd/create.py

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+import struct
+import time
+
+bitWidth = 32
+startTime = time.time()
+
+with open('isEven.bin', 'wb') as file:
+   
+    file.write(b"\x31\xC0")                     # XOR EAX, EAX
+
+    for i in range(2**bitWidth):
+        print(f"[{round(time.time() - startTime, 1)}s elapsed] status: {i}/{2**bitWidth} ({2**bitWidth - i} left)              ", end='\r')
+
+        ib = struct.pack("<I", i)               # Encode i as 32 bit little endian integer
+
+        file.write(b"\x81\xF9" + ib)            # CMP ECX, i
+
+        if i%2 == 0:
+            file.write(b"\x75\x03")             # JNE +3
+            file.write(b"\xFF\xC0")             # INC EAX
+            file.write(b"\xC3")                 # RET
+        else:
+            file.write(b"\x75\x01")             # JNE +1
+            file.write(b"\xC3")                 # RET
+
+    file.write(b"\xC3")                         # Fallback RET
+
+print()
+print(f"took: {round(time.time() - startTime, 8)}s")

machine/even-odd/ref.md

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+This idea is from this deranged post:
+https://andreasjhkarlsson.github.io//jekyll/update/2023/12/27/4-billion-if-statements.html

machine/finmgrsql/ddl.sql

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+-- Drop table
+
+-- DROP TABLE finance.expenses;
+
+CREATE TABLE finance.expenses (
+	expense_id bigserial NOT NULL,
+	"target" varchar(128) NOT NULL,
+	price int8 DEFAULT 0 NULL,
+	"interval" int4 DEFAULT 30 NULL,
+	active bool DEFAULT true NOT NULL,
+	amount int4 DEFAULT 1 NULL,
+	CONSTRAINT expenses_pkey PRIMARY KEY (expense_id)
+);
+
+-- Drop table
+
+-- DROP TABLE finance.incidents;
+
+CREATE TABLE finance.incidents (
+	incident_id bigserial NOT NULL,
+	"target" varchar NULL,
+	amount int8 NULL,
+	value_date date NULL,
+	created_on timestamp DEFAULT now() NULL,
+	CONSTRAINT incidents_pk PRIMARY KEY (incident_id)
+);
+
+-- Drop table
+
+-- DROP TABLE finance.income;
+
+CREATE TABLE finance.income (
+	income_id serial4 NOT NULL,
+	"source" varchar(64) NULL,
+	amount int8 NULL,
+	"interval" int4 DEFAULT 31 NULL,
+	active bool DEFAULT true NULL,
+	CONSTRAINT income_pkey PRIMARY KEY (income_id)
+);
+
+CREATE OR REPLACE VIEW finance.daily_overview
+AS SELECT name,
+    type,
+    id,
+    amount
+   FROM ( SELECT e.target AS name,
+            'expenses'::text AS type,
+            e.expense_id AS id,
+            - (e.price * e.amount / e."interval") AS amount
+           FROM finance.expenses e
+        UNION ALL
+         SELECT i.source AS name,
+            'income'::text AS type,
+            i.income_id AS id,
+            i.amount / i."interval" AS amount
+           FROM finance.income i
+        UNION ALL
+         SELECT i.target AS name,
+            'incident'::text AS type,
+            i.incident_id AS id,
+            i.amount / (i.value_date - i.created_on::date) AS amount
+           FROM finance.incidents i) unnamed_subquery;
+
+-- DROP FUNCTION finance.transaction_log(date, int4);
+
+CREATE OR REPLACE FUNCTION finance.transaction_log(from_date date DEFAULT now(), day_range integer DEFAULT 30)
+ RETURNS TABLE(date date, type text, id bigint, target text, amount bigint)
+ LANGUAGE plpgsql
+AS $function$
+BEGIN
+    RETURN QUERY
+    WITH date_range AS (
+        SELECT generate_series(from_date, from_date + day_range, INTERVAL '1 day')::date AS day
+    ),
+    recurring_expenses AS (
+        SELECT 
+            d.day AS date,
+            'expenses' AS type,
+            e.expense_id AS id,
+            e.target::TEXT AS target,
+            -(e.price * e.amount) AS amount
+        FROM finance.expenses e
+        JOIN date_range d ON e.active
+            AND MOD((d.day - DATE '2024-04-01')::int, e.interval) = 0
+    ),
+    recurring_income AS (
+        SELECT 
+            d.day AS date,
+            'income' AS type,
+            i.income_id AS id,
+            i.source::TEXT AS target,
+            i.amount AS amount
+        FROM finance.income i
+        JOIN date_range d ON i.active
+            AND MOD((d.day - DATE '2024-04-01')::int, i.interval) = 0
+    ),
+    incident_txns AS (
+        SELECT 
+            i.value_date AS date,
+            'incidents' AS type,
+            i.incident_id AS id,
+            i.target::TEXT AS target,
+            i.amount
+        FROM finance.incidents i
+        WHERE i.value_date BETWEEN from_date AND from_date + day_range
+    )
+    SELECT * FROM recurring_expenses
+    UNION ALL
+    SELECT * FROM recurring_income
+    UNION ALL
+    SELECT * FROM incident_txns
+    ORDER BY date, type;
+END;
+$function$
+;

machine/measure-bs/measure.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <style>
+        .h {
+            display: flex;
+        }
+
+        .mm {
+            height: 10mm;
+            width: 1mm;
+        }
+
+        body div *:nth-child(2n) {
+            background: red;
+        }
+
+        body div * {
+            background: black;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="h" id="mm">
+        <div class="mm"></div>
+        <div class="mm"></div>
+        <div class="mm"></div>
+        <div class="mm"></div>
+        <div class="mm"></div>
+        <div class="mm"></div>
+        <div class="mm"></div>
+        <div class="mm"></div>
+        <div class="mm"></div>
+    </div>
+    <div data-html-copy="#h"></div>
+</body>
+
+</html>

machine/outro/.gitignore

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+outro.webm

machine/outro/NOTICE.txt

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+Any video material used is not in any way owned by the repository owner.

machine/outro/outro-shutdown.sh

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+#!/bin/sh
+
+echo "preparing..."
+sudo whoami >/dev/null
+if ! [ -f "outro.webm" ]; then
+	yt-dlp \
+		"https://www.youtube.com/watch?v=3_-a9nVZYjk" \
+		--format 251 \
+		-o outro.webm
+fi
+
+echo "To cancel, Ctrl-C now..."
+sleep 5
+
+endtxt() {
+	sleep 6
+	echo "It's been a pleasure..."
+	sleep 4
+	echo "and i hate to do this..."
+	sleep 5
+	echo "but i got to go..."
+	sleep 10
+	echo "I just want to thank..."
+	sleep 5
+	echo "My processor, for processing this..."
+	sleep 3
+	echo "My ram for not forgetting me!"
+	sleep 3
+	echo "My storage for always keeping space for me!"
+	sleep 1
+	echo "But mostly..."
+	sleep 20
+	echo "You, for killing me *dab*"
+}
+
+clear
+mpv --really-quiet outro.webm &
+mpv_pid=$!
+endtxt &
+sleep 58
+
+sudo shutdown -P now goodbye world
+wait $mpv_pid
+

machine/riscv-asm/.gitignore

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+build/

machine/riscv-asm/build.sh

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+#!/bin/sh
+
+set -e
+
+echo "Building for RISC-V 64..."
+
+[ -d "build" ] || mkdir build
+rm -rf build/*
+
+riscv64-linux-gnu-as main.s -o build/main.o
+riscv64-linux-gnu-gcc \
+	build/main.o \
+	-o build/main \
+	-nostdlib \
+	-static
+
+echo "OK"

machine/riscv-asm/clean.sh

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+#!/bin/sh
+
+rm -rf build
+

machine/riscv-asm/main.s

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+.global _start
+
+_start:
+	addi a7, x0, 64 	# syscall write
+	addi a0, x0, 1  	# stdout fd
+	la a1, str_helloworld 	# load label into reg: a1
+	addi a2, x0, 13 	# length of string
+	ecall			# call kernel
+
+	beqz x0, _exit		# branch if = to zero
+
+_exit:
+	addi a7, x0, 93 	# syscall exit
+	addi a0, x0, 0  	# exit code
+	ecall			# call kernel
+	
+
+str_helloworld:
+	.ascii "Hello World!\n"

machine/riscv-asm/run.sh

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+#!/bin/sh
+
+[ "$1" = "build" ] && sh ./build.sh 
+qemu-riscv64 build/main

machine/shrink-video/.gitignore

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+*.webm
+

machine/shrink-video/shrink.sh

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+#!/bin/bash
+
+crf=${CRF:-25}
+video_codec=${VIDEO_CODEC:-libsvtav1}
+audio_codec=${AUDIO_CODEC:-libopus}
+
+while getopts ":c:v:a:" opt; do
+	case $opt in
+		c)
+			crf=$OPTARG
+		;;
+		v)
+			video_codec=$OPTARG
+		;;
+		a)
+			audio_codec=$OPTARG
+		;;
+		\?)
+			echo "no such arg!"
+			exit 1
+		;;
+	esac
+done
+shift $((OPTIND-1))
+
+if [ $# -eq 0 ]; then
+	echo "no file selected"
+	exit 1
+fi
+
+if ! [ -f $1 ]; then
+	echo "no such file"
+	exit 2
+fi
+
+ffmpeg \
+	-i $1 \
+	-crf $crf \
+	-c:v $video_codec \
+	-c:a $audio_codec \
+	${2:-out.$1}