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It's easier to update than gh-pages

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+.Dd $Mdocdate$
+.Dt WABT 1
+.Os
+.Sh NAME
+.Nm wast2json
+.Nd convert a file in the wasm spec test format to a JSON file and associated wasm binary files
+.Sh SYNOPSIS
+.Nm wast2json
+.Op options
+.Ar file
+.Sh DESCRIPTION
+.Nm
+reads a file in the wasm spec test format, checks it for errors, and converts it to a JSON file and associated wasm binary files.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl v , Fl Fl verbose
+Use multiple times for more info
+.It Fl Fl help
+Print this help message
+.It Fl Fl debug-parser
+Turn on debugging the parser of wast files
+.It Fl Fl enable-exceptions
+Enable Experimental exception handling
+.It Fl Fl disable-mutable-globals
+Disable Import/export mutable globals
+.It Fl Fl enable-saturating-float-to-int
+Enable Saturating float-to-int operators
+.It Fl Fl enable-sign-extension
+Enable Sign-extension operators
+.It Fl Fl enable-simd
+Enable SIMD support
+.It Fl Fl enable-threads
+Enable Threading support
+.It Fl Fl enable-multi-value
+Enable Multi-value
+.It Fl Fl enable-tail-call
+Enable Tail-call support
+.It Fl o , Fl Fl output=FILE
+output wasm binary file
+.It Fl r , Fl Fl relocatable
+Create a relocatable wasm binary (suitable for linking with e.g. lld)
+.It Fl Fl no-canonicalize-leb128s
+Write all LEB128 sizes as 5-bytes instead of their minimal size
+.It Fl Fl debug-names
+Write debug names to the generated binary file
+.It Fl Fl no-check
+Don't check for invalid modules
+.El
+.Sh EXAMPLES
+Parse spec-test.wast, and write files to spec-test.json.
+Modules are written to spec-test.0.wasm, spec-test.1.wasm, etc.
+.Pp
+.Dl $ wast2json spec-test.wast -o spec-test.json
+.Sh SEE ALSO
+.Xr wasm-interp 1 ,
+.Xr wasm-objdump 1 ,
+.Xr wasm-opcodecnt 1 ,
+.Xr wasm-strip 1 ,
+.Xr wasm-validate 1 ,
+.Xr wasm2c 1 ,
+.Xr wasm2wat 1 ,
+.Xr wat-desugar 1 ,
+.Xr wat2wasm 1 ,
+.Xr spectest-interp 1
+.Sh BUGS
+If you find a bug, please report it at
+.br
+.Lk https://github.com/WebAssembly/wabt/issues .