zero unformatted DOS 3.2 sectors after confirming their status

src/id/trace32.a

@@ -237,6 +237,8 @@ TraceDOS32d
          jmp   ADStyle
 
 ; callback to check if the data field is missing
+; and if so, fill the RWTS data buffer with zeros
+; and tell the caller that nibblizing was successful
 
 FFer
          ldy   #$00
@@ -246,8 +248,22 @@ FFer
          bne   +
          iny
          bne   -
+         ldy   callrwts+2
+         dey
+         sty   .G+2
+         dey
+         sty   .F+2
+         ldy   #$00
+         tya
+.F       sta   $FF00,y
+         iny
+         bne   .F
+.G       sta   $FF00,y
+         iny
+         cpy   #$9A
+         bne   .G
          clc
-         !byte $24        ; hide next SEC
+         rts
 +        sec
          rts
 }

src/patchers/dos32.a

@@ -8,10 +8,6 @@
          bit   gMode      ; nothing to do here in verify-only mode
          bpl   .exit
 
-         lda   #s_bootwrite
-         jsr   PrintByID
-         inc   gPatchCount
-
 ; sectors 2-9
 
          lda   #>universalrwts
@@ -21,6 +17,9 @@
          lda   #$38
          sta   $1656      ; #BASEPAGE+6
 
+         lda   #s_rwtswrite
+         jsr   PrintByID
+
 ; sector 1
 
          lda   callrwts+2
@@ -29,8 +28,16 @@
          ldx   #$11       ; #BASEPAGE+1
          ldy   #$01
          jsr   CopyMemory
-         lda   #$2C
+         lda   #$01
-         sta   $1138      ; #BASEPAGE+1
+         ldx   #$38
+         ldy   #$02
+         jsr   compare
+         !byte $20,$93
+         bcs   +
+         ldy   #$01
+         jsr   modify
+         !byte $2C
++
 
 ; sector 0
 
@@ -40,10 +47,14 @@
          lda   #<SD_DOS32
          ldx   #>SD_DOS32
          jsr   ConstructStandardDelivery
-         jmp   .exit
+         jmp   ++
 
 +        lda   #<SD_DOS32LO
          ldx   #>SD_DOS32LO
          jsr   ConstructStandardDelivery
+
+++       lda   #s_bootwrite
+         jsr   PrintByID
+         inc   gPatchCount
 .exit
 }

src/strings/en.a

@@ -106,7 +106,8 @@ s_d5timing =   $57
 s_advint =     $58
 s_dos32b0 =    $59
 s_bootwrite =  $5A
-STRINGCOUNT =  $5B
+s_rwtswrite =  $5B
+STRINGCOUNT =  $5C
 
 !zone {
 StringTable
@@ -201,6 +202,7 @@ StringTable
          !word .advint
          !word .dos32boot0
          !word .bootwrite
+         !word .rwtswrite
 ;
 ; Text can contain substitution strings, which
 ; are replaced by current values at runtime. Each
@@ -500,5 +502,8 @@ StringTable
          !text "T%t,S%0 Found Adventure International",$8D
          !text "protection check",$8D,$00
 .bootwrite
-         !text "T00 Writing Standard Delivery bootloader",$00
+         !text "T00,S00 Writing Standard Delivery",$8D
+         !text "bootloader",$8D,$00
+.rwtswrite
+         !text "T00,S02 Writing built-in RWTS",$8D,$00
 }