-This is my work in progress Quake C compiler. There are very few _good_ QC
-compilers out there on the internet that can be used in the opensource
-community. There are a lot of mediocre compilers, but no one wants those.
-This is the solution for that, for once a proper Quake C compiler that is
-capable of doing proper optimization. The design so far of this compiler
-is basic, because it doesn't actually compile code yet.
-
-gmqcc.h
- This is the common header with all definitions, structures, and
- constants for everything.
-
-error.c
- This is the error subsystem, this handles the output of good detailed
- error messages (not currently, but will), with colors and such.
-
-lex.c
- This is the lexer, a very small basic step-seek lexer that can be easily
- changed to add new tokens, very retargetable.
-
-main.c
- This is the core compiler entry, handles switches (will) to toggle on
- and off certian compiler features.
-
-parse.c
- This is the parser which goes over all tokens and generates a parse tree
- and check for syntax correctness.
-
-typedef.c
- This is the typedef system, this is a seperate file because it's a lot more
- complicated than it sounds. This handles all typedefs, and even recrusive
- typedefs.
-
-util.c
- These are utilities for the compiler, some things in here include a
- allocator used for debugging, and some string functions.
-
-assembler.c
- This implements support for assembling Quake assembler (which doesn't
- actually exist untill now: documentation of the Quake assembler is below.
- This also implements (will) inline assembly for the C compiler.
-
-README
- This is the file you're currently reading
-
-Makefile
- The makefile, when sources are added you should add them to the SRC=
- line otherwise the build will not pick it up. Trivial stuff, small
- easy to manage makefile, no need to complicate it.
- Some targets:
- #make gmqcc
- Builds gmqcc, creating a gmqcc binary file in the current
- directory as the makefile.
-
- #make clean
- Cleans the build files left behind by a previous build
-
-////////////////////////////////////////////////////////////////////////
-///////////////////// Quake Assembler Documentation ////////////////////
-////////////////////////////////////////////////////////////////////////
-Quake assembler is quite simple: it's just an annotated version of the binary
-produced by any existing QuakeC compiler, but made cleaner to use, (so that
-the location of various globals or strings are not required to be known).
-
-Constants:
- Using one of the following valid constant typenames, you can declare
- a constant {FLOAT,VECTOR,FUNCTION,FIELD,ENTITY}, all typenames are
- proceeded by a colon, and the name (white space doesn't matter).
-
- Examples:
- FLOAT: foo 1
- VECTOR: bar 1 2 1
- STRING: hello "hello world"
-
-Comments:
- Commenting assembly requires the use of either # or ; on the line
- that you'd like to be ignored by the assembler. You can only comment
- blank lines, and not lines assembly already exists on.
-
-Functions:
- Creating functions is the same as declaring a constant, simply use
- FUNCTION followed by a colon, and the name (white space doesn't matter)
- and start the statements for that function on the line after it
-
- Examples:
- FLOAT: foo 1
- FLOAT: bar 2
- FUNCTION: test1
- ADD foo, bar, OFS_RETURN
- RETURN
-
- FUNCTION: test2
- CALL0 test1
- DONE
-
-Internal:
- The Quake engine provides some internal functions such as print, to
- access these you first must declare them and their names. To do this
- you create a FUNCTION as you currently do. Adding a $ followed by the
- number of the engine builtin will bind it to that builtin.
-
- Examples:
- FUNCTION: print $4
- FUNCTION: error $3
-
-Misc:
- There are some rules as to what your identifiers can be for functions
- and constants. All indentifiers mustn't begin with a numeric digit,
- identifiers cannot include spaces, or tabs; they cannot contain symbols,
- and they cannot exceed 32768 characters. Identifiers cannot be all
- capitalized either, as all capatilized identifiers are reserved by the
- assembler.
-
- Numeric constants cannot contain special notation such as `1-e10`, all
- numeric constants have to be numeric, they can contain decmial points
- and signs (+, -) however.
-
- Constants cannot be assigned values of other constants, their value must
- be fully expressed inspot of the declration.
-
- No two identifiers can be the same name, this applies for variables allocated
- inside a function scope (despite it being considered local).
+An improved QuakeC compiler
projects / xonotic / gmqcc.git / blobdiff