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- ( xcomp for a SMS with PS/2 keyboard on port A )
- ( 8K of onboard RAM )
- 0xdd00 CONSTANT RS_ADDR
- ( Memory register at the end of RAM. Must not overwrite )
- 0xddca CONSTANT PS_ADDR
- RS_ADDR 0x80 - CONSTANT SYSVARS
- 0xc000 CONSTANT HERESTART
- SYSVARS 0x70 + CONSTANT VDP_MEM
- 0xbf CONSTANT VDP_CTLPORT
- 0xbe CONSTANT VDP_DATAPORT
- 32 CONSTANT VDP_COLS
- 24 CONSTANT VDP_ROWS
- SYSVARS 0x72 + CONSTANT CPORT_MEM
- 0x3f CONSTANT CPORT_CTL
- 0xdc CONSTANT CPORT_D1
- 0xdd CONSTANT CPORT_D2
- SYSVARS 0x73 + CONSTANT PS2_MEM
- 5 LOAD ( z80 assembler )
- : ZFILL, ( u ) 0 DO 0 A, LOOP ;
- 262 LOAD ( xcomp )
- 524 LOAD ( font compiler )
- 282 LOAD ( boot.z80.decl )
- 270 LOAD ( xcomp overrides )
-
- DI, 0x100 JP, 0x62 ZFILL, ( 0x66 )
- RETN, 0x98 ZFILL, ( 0x100 )
- ( All set, carry on! )
- CURRENT @ XCURRENT !
- 0x100 BIN( !
- 283 335 LOADR ( boot.z80 )
- 353 LOAD ( xcomp core low )
- CREATE ~FNT CPFNT7x7
- 603 608 LOADR ( VDP )
- 625 626 LOADR ( SMS ports )
- 620 LOAD ( PAD ) : (ps2kc) (ps2kcA) ; 411 414 LOADR
- 390 LOAD ( xcomp core high )
- (entry) _
- ( Update LATEST )
- PC ORG @ 8 + !
- ," VDP$ PS2$ (im1) " EOT,
- ORG @ 0x100 - 256 /MOD 2 PC! 2 PC!
- H@ 256 /MOD 2 PC! 2 PC!
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