SHR: Do not show XOR cursor in VDU5 mode

2025-04-10 03:37:42 +00:00 · 2023-01-09 19:26:33 -05:00 · 2023-01-09 19:26:33 -05:00 · f6443c2288
commit f6443c2288
parent 209a8e8201
2 changed files with 7 additions and 2 deletions
--- a/applecorn.po
+++ b/applecorn.po
--- a/auxmem.shr.s
+++ b/auxmem.shr.s
@ -159,6 +159,9 @@ SHRPRCHAR     CMP   CURSORED               ; Edit cursor?

 * Plot or unplot a cursor on SHR screen
 SHRCURSOR     PHA                          ; Preserve character
+              LDA   VDUSTATUS              ; If VDU5 mode, bail
+              AND   #$20
+              BNE   :BAIL
              LDA   #$E1
              STA   VDUBANK2
              JSR   SHRCHARADDR            ; Screen addr in VDUADDR
@ -184,12 +187,14 @@ SHRCURSOR     PHA                          ; Preserve character
 :CURSOROFF    LDA   [VDUADDR],Y
              BEQ   :DONE                  ; Already off
 :L1           LDAL  [VDUADDR],Y            ; XOR last row
-              EOR   #$FF
+              EOR   #$77
              STAL  [VDUADDR],Y
              INY
-              CPY   #$04
+              CPY   #$04                   ; TODO: Two bytes for 640 mode
              BNE   :L1
 :DONE         RTS
+:BAIL         PLA
+              RTS


 * Write character to SHR screen in 320 pixel mode