Tolik-Trek/Shared_Includes
1
0
Fork 0
mirror of https://github.com/Tolik-Trek/Shared_Includes.git synced 2026-06-16 01:21:07 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

...

Browse Source
This commit is contained in:
Anatoliy Belyanskiy 2023-10-18 04:00:57 +10:00
parent 12ce1947ad
commit 899a6c3af8
1 changed files with 9 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
constants/SP2000.inc
View File

@ -1518,15 +1518,16 @@ HOLD EQU #CB ;
;#DE - vRAM page for 512 kb (®ª­® C000-FFFF)
;#DF - vRAM page for 512 kb (®ª­® C000-FFFF)
;#E0 - vROM page EXPANSION ; Port #1FFD bit1=1 (#24 bit6=0, bit0=0)
;#E1 - vROM page TR-DOS ; PC = #3D00..#3DFF and #1FFD bit1=0 (#24 bit0=0)
;#E2 - vROM page BASIC-128 ; #7FFD bit4=0 and #1FFD bit1=0 (#24 bit0=0)
;#E3 - vROM page BASIC-48 ; #7FFD bit4=1 and #1FFD bit1=0 (#24 bit0=0)
vROM:
.BIOS: EQU #E0 ;vROM page EXPANSION. Port #1FFD bit1=1 (#24 bit6=0, bit0=0)
.TR_DOS: EQU #E1 ;vROM page TR-DOS. PC = #3D00..#3DFF and #1FFD bit1=0 (#24 bit0=0)
.BASIC_128: EQU #E2 ;vROM page BASIC-128. #7FFD bit4=0 and #1FFD bit1=0 (#24 bit0=0)
.BASIC_48: EQU #E3 ;vROM page BASIC-48. #7FFD bit4=1 and #1FFD bit1=0 (#24 bit0=0)
;#E4 - vROM page EXPANSION 2 ; Port #1FFD bit1=1 (#24 bit6=0, bit0=1)
;#E5 - vROM page TR-DOS 2 ; PC = #3D00..#3DFF and #1FFD bit1=0 (#24 bit0=1)
;#E6 - vROM page BASIC-128 2 ; #7FFD bit4=0 and #1FFD bit1=0 (#24 bit0=1)
;#E7 - vROM page BASIC-48 2 ; #7FFD bit4=1 and #1FFD bit1=0 (#24 bit0=1)
.BIOS_2: EQU #E4 ;vROM page EXPANSION 2. Port #1FFD bit1=1 (#24 bit6=0, bit0=1)
.TR_DOS_2: EQU #E5 ;vROM page TR-DOS 2. PC = #3D00..#3DFF and #1FFD bit1=0 (#24 bit0=1)
.BASIC_128_2: EQU #E6 ;vROM page BASIC-128 2. #7FFD bit4=0 and #1FFD bit1=0 (#24 bit0=1)
.BASIC_48_2: EQU #E7 ;vROM page BASIC-48 2. #7FFD bit4=1 and #1FFD bit1=0 (#24 bit0=1)
SLOT0 EQU #E8 ; RAM page (®ª­® 0000-3FFF)
SLOT1 EQU #E9 ; RAM page (®ª­® 4000-7FFF)