193 lines
2.9 KiB
Plaintext
193 lines
2.9 KiB
Plaintext
= Deimos Virtual Machine
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Jesse Brault <jbrault@mac.com>
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0.1.0, December 2024
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:toc:
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== Op Codes
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All numbers larger than `u8` are stored in **little-endian** format in raw bytecode.
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=== Move Byte
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Copies the operand into the target register.
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[source]
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----
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mov_byte(
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target_register: u8,
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operand: u8
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)
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----
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=== Move Int
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Copies the operand into the target register.
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[source]
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----
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mov_int(
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target_register: u8,
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operand: u32
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)
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----
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The operand is converted to an `i32` at runtime by the virtual machine.
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=== Move Long
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Copies the operand to the target register.
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[source]
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----
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mov_long(
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target_register: u8,
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operand: u64
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)
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----
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The operand is converted to an `i64` at runtime by the virtual machine.
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=== Move USize
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Copies the operand to the target register.
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[source]
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----
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mov_usize(
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target_register: u8,
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operand: usize
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)
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----
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Unlike the other numerical operand types, this operand remains unsigned at runtime.
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=== Move Double
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Copies the operand to the target register.
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[source]
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----
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mov_double(
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target_register: u8,
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operand: u64
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)
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----
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The operand is converted to an `f64` at runtime by the virtual machine.
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=== Move Boolean
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Copies the operand to the target register.
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[source]
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----
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mov_boolean(
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target_register: u8,
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operand: u8
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)
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----
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The operand is converted to a `bool` at runtime by the virtual machine.
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=== Move Register
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Copies the value in one register to another.
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[source]
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----
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mov_register(
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target_register: u8,
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source_register: u8
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)
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----
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=== Load
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Loads the target register with the `DvmValue` inner value stored in the field at `field_index` in the object in the
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source register.
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[source]
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----
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load_object(
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target_register: u8,
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source_register: u8,
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field_index: usize
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)
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----
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The source register must contain a `DvmValue::Object` at runtime.
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=== Store
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Stores the value contained in the source register to the field at `field_index` in the object contained in the target
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register.
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[source]
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----
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store(
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target_register: u8,
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offset: usize,
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source_register: u8
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)
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----
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The target register must contain a `DvmValue::Object` at runtime.
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=== Allocate
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Allocates memory for an object of the specified type and stores the allocated `DvmValue::Object` in the target register.
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[source]
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----
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alloc(
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target_register: u8,
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implementation_name_length: usize,
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implementation_name: [u8]
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)
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----
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The `implementation_name` is the bytes array of a UTF-8-encoded string, and `implementation_name_length` is the length
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of that array.
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=== Deallocate
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Deallocates the memory for the object stored in the target register.
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[source]
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----
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dealloc(
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target_register: u8
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)
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----
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The target register must contain a `DvmValue::Object` at runtime.
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=== Platform Call
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=== Invoke Function
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=== Invoke Virtual
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=== Invoke Dynamic
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=== Add
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[source]
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----
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add(
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target_register: u8,
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left_register: u8,
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right_register: u8
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)
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----
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=== Subtract
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=== Multiply
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=== Divide
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=== Modulo
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=== Power
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