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apple2_fantavision_reloaded
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Cleanup RWTS_ReadSector

This commit is contained in:
Michaelangel007 2017-03-26 09:14:28 -07:00
parent b8dc9f0cef
commit 72b5a6b89a
1 changed files with 13 additions and 2 deletions
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README.md
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@ -751,11 +751,22 @@ I'll use the prefix:
B00F:38 SEC ; Error TODO: Who calls us???
B010:60 RTS
; The main "workhorse" -- read one sector
; Called internally at $B366
; Called externally by the user indirectly via:
;
; * RWTS_ReadTrack
; * RWTS_LoadCode
; * RWTS_LoadBlocks
; * RWTS_ReadTrackQuiet
;
; ====================
; X = Slot * $10
; X = Slot * $10
; E6 = Pointer to Dest Address Low
; E7 = Pointer to Dest Address High
; ====================
RWTS_ReadSector
B011:86 FD STX rwts_SlotX16 ; $E6 = Pointer to Dest Address
B011:86 FD STX rwts_SlotX16
B013:8A TXA
B014:09 8C ORA #<DRIVE_DATA ; DRIVE_DATA = $C08C
B016:8D 70 B0 STA FixupA+1 ; *** SELF-MODIFYING CODE: LDX $C0xC