1
0
mirror of https://github.com/hsoft/collapseos.git synced 2024-11-26 20:28:06 +11:00
collapseos/recipes/sms/xcomp.fs

37 lines
907 B
Forth
Raw Normal View History

2020-05-15 12:15:31 +10:00
( 8K of onboard RAM )
0xc000 CONSTANT RAMSTART
0xdd00 CONSTANT RS_ADDR
( Memory register at the end of RAM. Must not overwrite )
0xddca CONSTANT PS_ADDR
RAMSTART 0x70 + CONSTANT VDP_MEM
2020-05-15 12:15:31 +10:00
0xbf CONSTANT VDP_CTLPORT
0xbe CONSTANT VDP_DATAPORT
32 CONSTANT VDP_COLS
24 CONSTANT VDP_ROWS
2020-05-16 05:41:06 +10:00
RAMSTART 0x72 + CONSTANT PAD_MEM
0x3f CONSTANT PAD_CTLPORT
0xdc CONSTANT PAD_D1PORT
2020-05-15 12:15:31 +10:00
212 LOAD ( z80 assembler )
: ZFILL, ( u ) 0 DO 0 A, LOOP ;
262 LOAD ( xcomp )
524 LOAD ( font compiler )
270 LOAD ( xcomp overrides )
0x100 JPnn, 0x63 ZFILL, ( 0x66 )
RETN, 0x98 ZFILL, ( 0x100 )
( All set, carry on! )
CURRENT @ XCURRENT !
0x100 BIN( !
282 LOAD ( boot.z80 )
353 LOAD ( xcomp core low )
2020-05-15 12:15:31 +10:00
CREATE ~FNT CPFNT7x7
2020-05-16 02:14:27 +10:00
623 628 LOADR ( VDP )
2020-05-16 05:41:06 +10:00
632 637 LOADR ( PAD )
380 LOAD ( xcomp core high )
2020-05-15 12:15:31 +10:00
(entry) _
( Update LATEST )
PC ORG @ 8 + !
2020-05-16 05:41:06 +10:00
," VDP$ PAD$ " EOT,
2020-05-15 12:15:31 +10:00
ORG @ 0x100 - 256 /MOD 2 PC! 2 PC!
H@ 256 /MOD 2 PC! 2 PC!