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kissa.bsky.social
@kissa.bsky.social
Tomfoolery, nincompoopery, programming
37 followers374 following39 posts
kissa.bsky.social

A nice, crisp autumn’s day. A good day to write a virtual machine and an assembler for it.

2
DMmarlo.ooo

welcome! love your handle 🐈‍⬛

1
kissa.bsky.social

First we need memory. 64kB will be nice. And the ability to read a word from the memory. Word is 16 bits.

const MEM_SIZE = 256 * 256 const mem = new Uint8Array(MEM_SIZE) function error(msg: string) { throw new Error(msg) } function read(addr: number) { if (addr < 0 || addr >= MEM_SIZE) { error(`read: invalid address ${addr}`) } return (mem[addr] << 8) + mem[addr + 1] } function test() { mem[0] = 0x12 mem[1] = 0x34 console.log(`0x${read(0).toString(16)}`) // => 0x1234 } test()
1
kissa.bsky.social
@kissa.bsky.social
Tomfoolery, nincompoopery, programming
37 followers374 following39 posts
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