dcaab1aa85
They were plain i64 constants handed to op_imm, so any integer typed as one and `inst_mrs(X0, 999999)` compiled fine. Worse, the printer could not tell a system register from an immediate and had to recover the distinction by mnemonic and slot -- MSR's other form holds a PSTATE field selector in the same position, so it keyed off whether operand 1 was a register. System_Register is now its own type with its own Operand_Kind, union member and op_sysreg constructor, exactly as Cond is. The printer's slot logic is gone: the operand knows what it is, so naming it is a case in the same switch that prints every other operand kind. MSR's PSTATE selector is typed PSTATE_FIELD, which is what it always was. It cannot join `Register` itself: that is a u16 with the class in its high byte, leaving 8 bits for the number, and a system register needs 15. Widening it would break `Memory`, which packs two registers plus a displacement and a mode into exactly 64 bits. The constants are also reorganised. They had accreted into overlapping sections -- two "ID registers" groups, three cache groups, a "Batch 5: comprehensive sysreg sweep" banner, and a "hmm let me recompute" note left in a comment. All 231 are now grouped by architectural function (18 groups, alphabetical within each) with their five fields aligned. Verified unchanged against llvm-mc: 222 registers byte-exact through MRS, 8 write-only through MSR, and the PSTATE form still decodes as an immediate rather than a register. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_018UmHLRF11EoWwNWCJ7JGaA
The Data-Oriented Language for Sane Software Development.
The Odin Programming Language
Odin is a general-purpose programming language with distinct typing, built for high performance, modern systems, and built-in data-oriented data types. The Odin Programming Language, the C alternative for the joy of programming.
Website: https://odin-lang.org/
package main
import "core:fmt"
main :: proc() {
program := "+ + * 😃 - /"
accumulator := 0
for token in program {
switch token {
case '+': accumulator += 1
case '-': accumulator -= 1
case '*': accumulator *= 2
case '/': accumulator /= 2
case '😃': accumulator *= accumulator
case: // Ignore everything else
}
}
fmt.printf("The program \"%s\" calculates the value %d\n",
program, accumulator)
}
Documentation
Getting Started
Instructions for downloading and installing the Odin compiler and libraries.
Nightly Builds
Get the latest nightly builds of Odin.
Learning Odin
Overview of Odin
An overview of the Odin programming language.
Frequently Asked Questions (FAQ)
Answers to common questions about Odin.
Packages
Documentation for all the official packages part of the core and vendor library collections.
Examples
Examples on how to write idiomatic Odin code. Shows how to accomplish specific tasks in Odin, as well as how to use packages from core and vendor.
Odin Documentation
Documentation for the Odin language itself.
Odin Discord
Get live support and talk with other Odin programmers on the Odin Discord.
Articles
The Odin Blog
The official blog of the Odin programming language, featuring announcements, news, and in-depth articles by the Odin team and guests.
Warnings
- The Odin compiler is still in development.