| cmd/asm/internal/arch | Package arch defines architecture-specific information and support functions. |
| cmd/asm/internal/flags | Package flags implements top-level flags and the usage message for the assembler. |
| cmd/asm/internal/lex | Package lex implements lexical analysis for the assembler. |
| cmd/internal/obj | |
| cmd/internal/obj/arm64 | Package arm64 implements an ARM64 assembler. |
| cmd/internal/obj/ppc64 | Package ppc64 implements a PPC64 assembler that assembles Go asm into the corresponding PPC64 instructions as defined by the Power ISA 3.0B. |
| cmd/internal/obj/x86 | |
| cmd/internal/objabi | |
| cmd/internal/src | |
| cmd/internal/sys | |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| internal/abi | |
| io | Package io provides basic interfaces to I/O primitives. |
| log | Package log implements a simple logging package. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| strconv | Package strconv implements conversions to and from string representations of basic data types. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| text/scanner | Package scanner provides a scanner and tokenizer for UTF-8-encoded text. |
| unicode/utf8 | Package utf8 implements functions and constants to support text encoded in UTF-8. |