DragonVM/extra/dss/drake/bootsector.dss

46 lines
678 B
Text

.load 0x1740
@include <../bios_api.dss>
.data
$string "Hello "
$ddd <DiskDriverData>
$dpt_block <DPTBlock>
.code
push 0
call $_load_dpt_block
mov R10, 0x0C
mov R9, $string
int 0x30
mov R10, 0x0C
mov R9, { $dpt_block + DPTStructure.ENTRIES_START + (2 * DPTStructure.ENTRY_SIZE_B) + DPTStructure.ENTRY_PART_LBL }
int 0x30
debug_break
end_loop:
jmp $end_loop
hlt
_load_dpt_block:
mov [$ddd.Mode], DiskMode.READ
mov [$ddd.Disk], 0x00
mov [$ddd.Sector], 0x0000
mov [$ddd.Address], 0x0200
mov [$ddd.DataSize], 512
mov [$ddd.MemoryAddress], $dpt_block
push $ddd
push 1
call $_disk_load_from_ddd_blocking
ret
@include <disk.dss>
.fixed 5120, 0xFF