| Format | Option name |
|---|---|
| Binary | -fbin |
| Sega Mega Drive/Genesis ROM | -fsmd |
This is a binary format. A Mega Drive image must start with a particular header, the linker does not produce this header automatically, but will update it.
The first object's first section must contain this header, alternatively it's possible to specify a load address for a section and place it at the right address. The linker will update the header's ROM ending address and checksum bytes accordingly.
This machine definition declares several pools and groups, with an almost one-to-one relationship.
| Pool/group | Start | End |
|---|---|---|
| CODE/DATA | $000000 | $3FFFFF |
| BSS | $FF0000 | $FFFFFF |
The header must be filled correctly by the user, but the linker will correct the length entry at $1A4, and the checksum at $18E.