Custom
-
-
-
-
-
+
+
+
-
Random runs briefly then stops automatically.
-
+
-
-
+ Random runs briefly then stops automatically.
+
+
+
+
Tools
-
-
+
+
-
-
+
+
+
+
+
-
-
-
- Denary
- 0
-
- Binary
- 0000 0000
-
-
-
-
-
-
-
-
-
-
+
+
diff --git a/src/scripts/binary.js b/src/scripts/binary.js
index 5d7af61..197efa9 100644
--- a/src/scripts/binary.js
+++ b/src/scripts/binary.js
@@ -1,6 +1,6 @@
// src/scripts/binary.js
-// Computing:Box — Binary page logic (Unsigned + Two's Complement)
-// Matches IDs/classes in your current binary.astro HTML.
+// Computing:Box — Binary Simulator logic (Unsigned + Two's Complement)
+// Matches IDs/classes in binary.astro
(() => {
/* -----------------------------
@@ -13,10 +13,11 @@
const modeToggle = document.getElementById("modeToggle");
const modeHint = document.getElementById("modeHint");
+ const lblUnsigned = document.getElementById("lblUnsigned");
+ const lblTwos = document.getElementById("lblTwos");
const btnCustomBinary = document.getElementById("btnCustomBinary");
const btnCustomDenary = document.getElementById("btnCustomDenary");
-
const btnShiftLeft = document.getElementById("btnShiftLeft");
const btnShiftRight = document.getElementById("btnShiftRight");
@@ -28,7 +29,7 @@
const btnBitsUp = document.getElementById("btnBitsUp");
const btnBitsDown = document.getElementById("btnBitsDown");
- // Toolbox toggle
+ const toolbox = document.getElementById("toolbox");
const toolboxToggle = document.getElementById("toolboxToggle");
/* -----------------------------
@@ -94,22 +95,18 @@
const u = bitsToUnsignedBigInt();
const signBit = bits[bitCount - 1] === true;
if (!signBit) return u;
-
- // negative: u - 2^n
- return u - pow2Big(bitCount);
+ return u - pow2Big(bitCount); // negative: u - 2^n
}
function signedBigIntToBitsTwos(vSigned) {
const span = pow2Big(bitCount); // 2^n
- let v = vSigned;
-
- // Convert to unsigned representative: v mod 2^n
- v = ((v % span) + span) % span;
+ // convert to unsigned representative: v mod 2^n
+ const v = ((vSigned % span) + span) % span;
unsignedBigIntToBits(v);
}
function formatBinaryGrouped() {
- // MSB..LSB with a space every 4 bits
+ // MSB..LSB with space every 4 bits
let s = "";
for (let i = bitCount - 1; i >= 0; i--) {
s += bits[i] ? "1" : "0";
@@ -122,11 +119,9 @@
function updateModeHint() {
if (!modeHint) return;
if (isTwosMode()) {
- modeHint.textContent =
- "Tip: In two’s complement, the left-most bit (MSB) represents a negative value.";
+ modeHint.textContent = "Tip: In two’s complement, the left-most bit (MSB) represents a negative value.";
} else {
- modeHint.textContent =
- "Tip: In unsigned binary, all bits represent positive values.";
+ modeHint.textContent = "Tip: In unsigned binary, all bits represent positive values.";
}
}
@@ -137,7 +132,7 @@
bitCount = clampInt(count, 1, 64);
if (bitsInput) bitsInput.value = String(bitCount);
- // resize bits array, preserve existing LSBs where possible
+ // preserve existing LSBs where possible
const oldBits = bits.slice();
bits = new Array(bitCount).fill(false);
for (let i = 0; i < Math.min(oldBits.length, bitCount); i++) bits[i] = oldBits[i];
@@ -150,7 +145,7 @@
bitEl.className = "bit";
bitEl.innerHTML = `
-
💡
+