This package exports a command-line program called defasm, with which you can assemble and (optionally) execute Assembly source code. To use the package, install it globally with npm install -g @defasm/core and then run defasm --help.
Note that the package does not come with an emulator. When executing with -r, the assembled code is saved into an ELF file and then executed directly. As such, the execution utility is currently functional only on systems that support ELF files (e.g. Linux).
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-i,--intel- use Intel syntax when assembling (defaults to AT&T) -
-m32,-m64- compile for 32- or 64-bit machines, respectively (defaults to whatever the current machine supports, or 64-bit if irrelevant) -
-o FILE,--output FILE- set the path to the output file (defaults to 'a.out' in the current directory, or /tmp/asm.out if--runis provided) -
-x,--executable- generate an executable file from the input file (note that it will not be linked against other files) -
-w,--writable- make the .text section writable -
-r,--run- if given, the assembler will execute the program and print crash information. All parameters following this flag are sent to the program as runtime arguments -
--size-out=FD- set the file descriptor to write the number (in ASCII) of bytes generated by the assembler to