as is the Onramp assembler. It takes Onramp assembly language as input and outputs Onramp object files.
This is a description of the implementation stages of the assembler. For a specification of the input to the assembler, see Onramp assembly. For a specification of the output of the assembler, see Onramp object code.
The Onramp assembler is implemented in the following stages:
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0-basic: The basic assembler supports quoted bytes, raw strings, and keyword replacement for primitive opcodes, registers and syscalls. It supports the same label syntax as Onramp object files. -
1-compound: The compound assembler adds compound instructions, e.g.push/pop,call/ret. These are assembled into multiple primitive instructions in bytecode. It also adds decimal numbers which expand contextually to the appropriate number of bytes. It greatly improves error-checking over the previous stage as it verifies that opcodes are used correctly. -
2-full: The full assembler adds debug info and optimizations for some compound instructions. It further improves error checking and gives better error messages.