11 GST output module

This chapter describes the gst output module which can be selected with the ‘-Fgst’ option.

11.1 Legal

This module is written in 2023 by Frank Wille and is covered by the vasm copyright without modifications.

11.2 Additional options for this module

None.

11.3 General

This module outputs the GST object file format by GST Software, which was used by several development tools on the Atari M68k computers. For example by the GST assembler and Devpac.

11.4 Restrictions

• - Although there can be multiple sections, they don’t have a type.
• - Maximum size of section and symbol names is 255 characters.
• - Only absolute, pc-relative and common-symbol relocations are supported at the moment.
• - Possible relocation sizes are 8, 16 and 32 bits.

11.5 Known Problems

Some known problems of this module at the moment:

• - Needs testing.
• - Missing support for base-relative relocations.

11.6 Error Messages

This module has the following error messages:

• - 3002: output module doesn’t support cpu %s
• - 3011: weak symbol <%s> not supported by output format, treating as global
• - 3013: reloc type %d, mask 0x%lx to symbol %s + 0x%lx does not fit into %u bits