From 155b72ce6d8597e928ed0127813630c2de89d171 Mon Sep 17 00:00:00 2001
From: Werner <guilhermeqwerner@gmail.com>
Date: Mon, 15 Nov 2021 21:22:09 -0300
Subject: [PATCH] Initial instructions

---
 .cargo/config.toml |   2 +
 .gitignore         |   2 +
 Cargo.toml         |  14 ++++
 Source/lib.rs      | 201 +++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 219 insertions(+)
 create mode 100644 .cargo/config.toml
 create mode 100644 .gitignore
 create mode 100644 Cargo.toml
 create mode 100644 Source/lib.rs

diff --git a/.cargo/config.toml b/.cargo/config.toml
new file mode 100644
index 0000000..0243837
--- /dev/null
+++ b/.cargo/config.toml
@@ -0,0 +1,2 @@
+[build]
+target-dir = "Binaries"
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..33080b4
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+Binaries/
+Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..f5f8b7c
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "machine"
+version = "0.0.2"
+description = "Virtual Machine"
+repository = "https://github.com/GuilhermeWerner/Machine"
+license = "MIT"
+edition = "2021"
+publish = false
+
+[lib]
+name = "Machine"
+crate-type = ["rlib"]
+path = "Source/lib.rs"
+
diff --git a/Source/lib.rs b/Source/lib.rs
new file mode 100644
index 0000000..8672082
--- /dev/null
+++ b/Source/lib.rs
@@ -0,0 +1,201 @@
+#![allow(non_snake_case)]
+
+#[repr(u8)]
+#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash, TryFromPrimitive)]
+pub enum Instruction {
+    /// No operation.
+    ///
+    /// ```no_run
+    /// nop
+    /// ```
+    Nop = 0x00,
+
+    /// Load register from memory.
+    ///
+    /// ```no_run
+    /// ldr r1 0050 // r1 = mem[0050]
+    /// ```
+    Ldr = 0x01,
+
+    /// Store register in memory.
+    ///
+    /// ```no_run
+    /// str 0050 r1 // mem[0050] = r1
+    /// ```
+    Str = 0x02,
+
+    /// Move register.
+    ///
+    /// ```no_run
+    /// mov r1 r2 // r1 = r2
+    /// ```
+    Mov = 0x03,
+
+    /// Arithmetic addition `+`.
+    ///
+    /// ```no_run
+    /// add r1 r2 r3 // r1 = r2 + r3
+    /// ```
+    Add = 0x04,
+
+    /// Add with carry.
+    ///
+    /// ```no_run
+    /// adc r1 r2 r3 r4 // r1 = r2 + r3 + r4
+    /// ```
+    Adc,
+
+    /// Arithmetic subtraction `-`.
+    ///
+    /// ```no_run
+    /// sub r1 r2 r3 // r1 = r2 - r3
+    /// ```
+    Sub,
+
+    /// Subtract with carry.
+    ///
+    /// ```no_run
+    /// sbc r1 r2 r3 r4 // r1 = r2 - r3 - 1 - r4
+    /// ```
+    Sbc,
+
+    /// Arithmetic multiplication `*`.
+    ///
+    /// ```no_run
+    /// mul r1 r2 r3 // r1 = r2 * r3
+    /// ```
+    Mul,
+
+    /// Arithmetic division `/`.
+    ///
+    /// ```no_run
+    /// div r1 r2 r3 // r1 = r2 / r3
+    /// ```
+    Div,
+
+    /// Arithmetic remainder `/`.
+    ///
+    /// ```no_run
+    /// rem r1 r2 r3 // r1 = r2 % r3
+    /// ```
+    Rem,
+
+    /// Arithmetic negation `-`.
+    ///
+    /// ```no_run
+    /// not r1 r2 // r1 = -r2
+    /// ```
+    Neg,
+
+    /// Bitwise AND `&`.
+    ///
+    /// ```no_run
+    /// and r1 r2 r3 // r1 = r2 & r3
+    /// ```
+    And,
+
+    /// Bitwise OR `|`.
+    ///
+    /// ```no_run
+    /// or r1 r2 r3 // r1 = r2 | r3
+    /// ```
+    Or,
+
+    /// Bitwise XOR `^`.
+    ///
+    /// ```no_run
+    /// xor r1 r2 r3 // r1 = r2 ^ r3
+    /// ```
+    Xor,
+
+    /// Logical negation `!`
+    ///
+    /// ```no_run
+    /// not r1 r2 // r1 = !r2
+    /// ```
+    Not,
+
+    /// Bitwise NAND.
+    ///
+    /// ```no_run
+    /// nand r1 r2 r3 // r1 = !(r2 & r3)
+    /// ```
+    Nand,
+
+    /// Bitwise NOR.
+    ///
+    /// ```no_run
+    /// nor r1 r2 r3 // r1 = !(r2 | r3)
+    /// ```
+    Nor,
+
+    /// Bitwise XNOR.
+    ///
+    /// ```no_run
+    /// xnor r1 r2 r3 // r1 = !(r2 ^ r3)
+    /// ```
+    Xnor,
+
+    /// Shift left `<<`.
+    ///
+    /// ```no_run
+    /// shl r1 r2 r3 // r1 = r2 << r3
+    /// ```
+    Shl,
+
+    /// Shift right `>>`.
+    ///
+    /// ```no_run
+    /// shr r1 r2 r3 // r1 = r2 >> r3
+    /// ```
+    Shr,
+
+    /// Equality comparation.
+    ///
+    /// ```no_run
+    /// eq r1 r2 r3 // r1 = r2 == r3
+    /// ```
+    Eq,
+
+    /// Inequality comparation.
+    ///
+    /// ```no_run
+    /// neq r1 r2 r3 // r1 = r2 != r3
+    /// ```
+    Neq,
+
+    /// Less comparation.
+    ///
+    /// ```no_run
+    /// lt r1 r2 r3 // r1 = r2 < r3
+    /// ```
+    Lt,
+
+    /// Less-equal comparation.
+    ///
+    /// ```no_run
+    /// le r1 r2 r3 // r1 = r2 <= r3
+    /// ```
+    Le,
+
+    /// Greater comparation.
+    ///
+    /// ```no_run
+    /// gt r1 r2 r3 // r1 = r2 > r3
+    /// ```
+    Gt,
+
+    /// Greater-equal comparation.
+    ///
+    /// ```no_run
+    /// ge r1 r2 r3 // r1 = r2 >= r3
+    /// ```
+    Ge,
+
+    /// Halt execution.
+    ///
+    /// ```no_run
+    /// hlt
+    /// ```
+    Hlt = 0xFF,
+}