Mercurial > hg > Members > kono > nitros9-code
view level1/modules/vectors.asm @ 3130:e0614e08fa5e
l1 boot modules: Expand documentation and clean up code
Tidy up white-space and indentation.
Expand documentation to show C flag is important on return
from HWRead.
Expand documentation to show how/why/when filler is needed at
end of file.
Delete dead code in some places. No functional changes.
| author | Neal Crook <foofoobedoo@gmail.com> |
|---|---|
| date | Sun, 04 Dec 2016 21:01:42 +0000 |
| parents | e93ace49362e |
| children |
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******************************************************************** * vectors - CoCo ROM vectors * * $Id: vectors.asm,v 1.1 2004/04/05 03:34:39 boisy Exp $ * * These 16 bytes are merged at the end of the ROM image in ROM-based * NitrOS-9 kernels * * Edt/Rev YYYY/MM/DD Modified by * Comment * ------------------------------------------------------------------ * * Note that the $8015 value for the RESET vector must match the * offset of the "start" label in rominfo.asm * IFP1 use defsfile ENDC IFGT Level-1 * NitrOS-9 Level 2 ROM vectors fdb $0000 Reserved fdb $FEEE SWI3 fdb $FEF1 SWI2 fdb $FEF4 FIRQ fdb $FEF7 IRQ fdb $FEFA SWI fdb $FEFD NMI fdb $8015 RESET ELSE * NitrOS-9 Level 1 ROM Vectors fdb $8015 Reserved fdb $0100 SWI3 fdb $0103 SWI2 fdb $010F FIRQ fdb $010C IRQ fdb $0106 SWI fdb $0109 NMI fdb $8015 RESET ENDC