ref: cdd82009369ff348ccce7b40267c5079c8439679
dir: /src/asm/rgbasm.1/
.\" .\" This file is part of RGBDS. .\" .\" Copyright (c) 2010-2019, Anthony J. Bentley and RGBDS contributors. .\" .\" SPDX-License-Identifier: MIT .\" .Dd July 8, 2019 .Dt RGBASM 1 .Os RGBDS Manual .Sh NAME .Nm rgbasm .Nd Game Boy assembler .Sh SYNOPSIS .Nm rgbasm .Op Fl EhLVvw .Op Fl b Ar chars .Op Fl D Ar name Ns Op = Ns Ar value .Op Fl g Ar chars .Op Fl i Ar path .Op Fl M Ar dependfile .Op Fl o Ar outfile .Op Fl p Ar pad_value .Op Fl r Ar recursion_depth .Ar file .Sh DESCRIPTION The .Nm program creates an object file from an assembly source file. The input .Ar file can be a file path, or .Cm \- denoting .Cm stdin . Its arguments are as follows: .Bl -tag -width Ds .It Fl b Ar chars Change the two characters used for binary constants. The defaults are 01. .It Fl D Ar name Ns Op = Ns Ar value Add string symbol to the compiled source code. This is equivalent to .Ar name .Cm EQUS .Qq Ar "value" in code. If a value is not specified, a value of 1 is given. .It Fl E Export all labels, including unreferenced and local labels. .It Fl g Ar chars Change the four characters used for binary constants. The defaults are 0123. .It Fl h By default, .Nm inserts a .Sq nop instruction immediately after any .Sq halt instruction. The .Fl h option disables this behavior. .It Fl i Ar path Add an include path. .It Fl L Disable the optimization that turns loads of the form .Sy LD [$FF00+n8],A into the opcode .Sy LDH [$FF00+n8],A in order to have full control of the result in the final ROM. .It Fl M Ar dependfile Print .Xr make 1 dependencies to .Ar dependfile . .It Fl o Ar outfile Write an object file to the given filename. .It Fl p Ar pad_value When padding an image, pad with this value. The default is 0x00. .It Fl r Ar recursion_depth Specifies the recursion depth at which RGBASM will assume being in an infinite loop. .It Fl V Print the version of the program and exit. .It Fl v Be verbose. .It Fl w Disable warning output. .El .Sh EXAMPLES You can assemble a source file in two ways. Straight forward way: .Pp .Bd -literal -offset indent $ rgbasm -o bar.o foo.asm .Ed .Pp Pipes way: .Pp .Bd -literal -offset indent $ cat foo.asm | rgbasm -o bar.o - $ rgbasm -o bar.o - < foo.asm .Ed .Pp The resulting object file is not yet a usable ROM image \(em it must first be run through .Xr rgblink 1 and .Xr rgbfix 1 . .Sh SEE ALSO .Xr rgbasm 5 , .Xr rgbfix 1 , .Xr rgblink 1 , .Xr rgbds 5 , .Xr rgbds 7 , .Xr gbz80 7 .Sh HISTORY .Nm was originally written by Carsten S\(/orensen as part of the ASMotor package, and was later packaged in RGBDS by Justin Lloyd. It is now maintained by a number of contributors at .Lk https://github.com/rednex/rgbds .