shithub: rgbds

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dir: /src/link/rgblink.1/

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.Dd $Mdocdate$
.Dt RGBLINK 1
.Os RGBDS Manual
.Sh NAME
.Nm rgblink
.Nd Game Boy linker
.Sh SYNOPSIS
.Nm rgblink
.Op Fl t
.Op Fl l Ar library
.Op Fl m Ar mapfile
.Op Fl n Ar symfile
.Op Fl o Ar outfile
.Op Fl p Ar pad_value
.Op Fl s Ar symbol
.Ar
.Sh DESCRIPTION
The
.Nm
program links objects created by
.Xr rgbasm 1
into a single Game Boy ROM file.
.Pp
By default, HOME sections created by the assembler are placed in the 16KiB
bank 0, and CODE/DATA sections are placed in any bank except bank 0.
If your ROM will only be 32KiB, you can use the
.Fl t
option to override this.
.Pp
The arguments are as follows:
.Bl -tag -width Ds
.It Fl l Ar library
Include a referenced library module created with
.Xr rgblib 1 .
Note that specified libraries will be included only if needed\(emthat is, if
a SECTION from a library is referenced by an object file.
Only the relevant SECTION will be included, rather than the entire module.
.It Fl m Ar mapfile
Write a mapfile to the given filename.
.It Fl n Ar symfile
Write a symbol file to the given filename.
.It Fl o Ar outfile
Write ROM image to the given filename.
.It Fl p Ar pad_value
When padding an image, pad with this value.
The default is 0x00.
.It Fl s Ar symbol
???
.It Fl t
Write a tiny
.Pq 32KiB
ROM file.
This forces all DATA/CODE sections to be of type HOME, and increases the HOME
section size from 16KiB to 32KiB.
.El
.Sh EXAMPLES
All you need for a basic ROM is an object file, which can be made into a ROM
image like so:
.Pp
.D1 $ rgblink \-o bar.gb foo.o
.Pp
The resulting bar.gb will not have correct checksums
.Pq unless you put them in the assembly source .
You should use
.Xr rgbfix 1
to fix these so that the program will actually run in a Game Boy:
.Pp
.D1 $ rgbfix \-v bar.gb
.Sh SEE ALSO
.Xr rgbds 7 ,
.Xr rgbasm 1 ,
.Xr rgbfix 1 ,
.Xr rgblib 1 ,
.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.