Abcsx

abcsx - The ActionScript Byte Code assembler / disassembler in Scheme

This is a set of tools to examine Adobe's ABC format file.

• Usage

abcsx.ss filename.sx

Generate ABC binary file from ASM-form or ABC-form (described below). The output file name is filename.sx.abc.

abcsx.ss -dump [-abc] filename.abc

Desassemble an abc file. The output is printed to stdout. If -abc option is specified, ABC-form (described below) is chosen.

runasm.sh filename.sx

Assemble ASM-form or ABC-form and execute it by avmshell. It requires avmshell installed. Avmshell is included in Tamarin VM's source tree.

swf_abc.erl width height classname abcfile.abc

An helper program to generate a flash file from an abc file. It requires Erlang.

• File Format

There are two kinds of representation to describe a ABC file. You can use either way depend on the purpose. Asm.ss accepts both format.

ASM-form : A (relatively) human friendly notation

(asm (method (((signature ((return_type *) (param_type ()) (name "hello") (flags 0) (options ()) (param_names ()))) (code ((getlocal 0) (pushscope) (findpropstrict ((package "") "print")) (pushstring "Hello, World!!") (callproperty ((package "") "print") 1) (returnvoid)))))) (script (((init (method 0)) (trait ())))))

ABC-form : One-to-One translation to S-expression

(abc (minor_version 16) (major_version 46) (constant_pool ((integer ()) (uinteger ()) (double ()) (string ("hello" "" "print" "Hello, World!!")) (namespace ((package (string 2)))) (ns_set ()) (multiname (((namespace 1) (string 3)))))) (method (((return_type (multiname 0)) (param_type ()) (name (string 1)) (flags 0) (options ()) (param_names ())))) (metadata ()) (instance ()) (class ()) (script (((init (method 0)) (trait ())))) (method_body (((method 0) (max_stack 2) (local_count 1) (init_scope_depth 0) (max_scope_depth 1) (code ((getlocal 0) (pushscope) (findpropstrict (multiname 1)) (pushstring (string 4)) (callproperty (multiname 1) 1) (returnvoid))) (exception ()) (trait ())))))

• Platforms

PLT-Scheme (mzscheme) 4.2.1 Gauche 0.8.13

• Bugs

Constant slots (vkind) is not supported properly in the ASM-form writer.