6502/6502bench
1
0
Fork 0
mirror of https://github.com/fadden/6502bench.git synced 2024-07-06 16:29:03 +00:00
Code Issues Projects Releases Wiki Activity

Add Disk ][ I/O locations

Browse Source 
Not perfect, but I'm not sure how to do better.
This commit is contained in:
Andy McFadden 2020-02-18 13:11:13 -08:00
parent 8209753cbc
commit ecbb01db1f
1 changed files with 25 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
SourceGen/RuntimeData/Apple/Cxxx-IO.sym65
View File

@ -137,22 +137,31 @@ LCBANK1 @ $C08B ;RWx2 read/write RAM bank 1
CLRROM @ $CFFF ;disable slot C8 ROM
;IWM:PH0 off @ C0E0
;IWM:PH0 on @ C0E1
;IWM:PH1 off @ C0E2
;IWM:PH1 on @ C0E3
;IWM:PH2 off @ C0E4
;IWM:PH2 on @ C0E5
;IWM:PH3 off @ C0E6
;IWM:PH3 on @ C0E7
;IWM:motor off @ C0E8
;IWM:motor on @ C0E9
;IWM:drive 1 @ C0EA
;IWM:drive 2 @ C0EB
;IWM:Q6 OFF (Read) @ C0EC
;IWM:Q6 ON (WP-sense) @ C0ED
;IWM:Q7 OFF (WP-sense/Read) @ C0EE
;IWM:Q7 ON (Write) @ C0EF
; Disk ][ I/O locations.
;
; A few things hard-code slot 6 for disk access, in which case
; these will work. In most cases code uses something like
; "LDA $C088,X", which clashes with the slot 0 definitions. We
; define these for slot 6 to get the symbols defined in a way that
; is unlikely to clash, allowing them to be manually set for values
; in the C08x range.
IWM_PH0_OFF @ $C0E0 ;IWM phase 0 off
IWM_PH0_ON @ $C0E1 ;IWM phase 0 on
IWM_PH1_OFF @ $C0E2 ;IWM phase 1 off
IWM_PH1_ON @ $C0E3 ;IWM phase 1 on
IWM_PH2_OFF @ $C0E4 ;IWM phase 2 off
IWM_PH2_ON @ $C0E5 ;IWM phase 2 on
IWM_PH3_OFF @ $C0E6 ;IWM phase 3 off
IWM_PH3_ON @ $C0E7 ;IWM phase 3 on
IWM_MOTOR_OFF @ $C0E8 ;IWM motor off
IWM_MOTOR_ON @ $C0E9 ;IWM motor on
IWM_DRIVE_1 @ $C0EA ;IWM select drive 1
IWM_DRIVE_2 @ $C0EB ;IWM select drive 2
IWM_Q6_OFF @ $C0EC ;read
IWM_Q6_ON @ $C0ED ;WP-sense
IWM_Q7_OFF @ $C0EE ;WP-sense/read
IWM_Q7_ON @ $C0EF ;write
; Not strictly I/O locations, but they're in the neighborhood.
ROM_AUXMOVE @ $C311