update patchers/ssprot with variant where checksum in 080F is 27

src/modify.a

@@ -11,7 +11,8 @@
 ;      stack set to return to
 ;        code after string
 ;      all registers clobbered
-;      all flags clobbered
+;      oVerflow bit clear
+;      all other flags clobbered
 ;-------------------------------
 !zone {
 modify
@@ -70,5 +71,6 @@ modify
 .exit
          inc   gPatchCount
 .exitnomod
+         clv
          rts
 }

src/patchers/ssprot.a

@@ -12,6 +12,8 @@
 ; Spanish Grammar Review - Familiar and Formal Commands in the Affirmative and Negative (1984, Gessler)
 ; Spanish Grammar Review - Por vs. Para (1984, Gessler)
 ; Water in the Air Quiz (1985, EME)
+; Comic Strip Maker (1986, Walt Disney)
+; Wortgefecht (Word Attack German) (1984, Gessler)
 ;-------------------------------
 !zone {
          lda   gIsF7F6
@@ -37,14 +39,23 @@
          !byte $F0,$03               ; BEQ +3
          !byte $4C,$16,$08           ; JMP $0816
          bcs   .nextsector
+
          ldx   #$76
          ldy   #$03
          jsr   compare
          !byte $23,$2A,$28
-         bcs   .nextsector
+         bcc   .variant1
+
+         ldy   #$03
+         jsr   compare
+         !byte $70,$79,$77
          lda   .sector+1
          ldx   #$20
          ldy   #$03
+         bcc   .variant2
+         bcs   .nextsector
+
+.variant1
          jsr   modify
          !byte $EA                   ; NOP
          !byte $A9,$35               ; LDA #$35
@@ -53,6 +64,20 @@
          ldy   #$02
          jsr   modify
          !byte $AA,$A2               ; new JMP entry point ($0900 when decrypted)
+         bvc   .nextsector           ; always branches
+
+.variant2
+         jsr   modify
+         !byte $EA                   ; NOP
+         !byte $A9,$27               ; LDA #$27
+         lda   .sector+1
+         ldx   #$76
+         ldy   #$02
+         jsr   modify                ; new JMP entry point ($0903 when decrypted)
+         !byte $FA,$F2
+
+; note: execution falls through here
+
 .nextsector
          dec   .sector+1
          bpl   .sector