Video Vegas reset vector

src/prelaunch/video.vegas.a

@@ -0,0 +1,66 @@
+;license:MIT
+;(c) 2021 by qkumba
+
+!cpu 6502
+!to "build/PRELAUNCH/VIDEO.VEGAS",plain
+*=$106
+
+         !source "src/prelaunch/common.a"
+
+         +ENABLE_ACCEL
+         lda   #$60
+         sta   $9E5
+         jsr   $800       ; load "DOS"
+         lda   #>callback1
+         sta   $E079
+         lda   #<callback1
+         sta   $E078
+         jmp   $E03A
+
+callback1
+         lda   #$A6
+         sta   $3DD
+         lda   #$FA
+         sta   $3DE
+         lda   #$60
+         sta   $E0BC
+         jsr   $E083
+         lda   #>callback2
+         sta   $D402
+         lda   #<callback2
+         sta   $D401
+         jsr   DisableAccelerator
+         lda   #$00
+         ldx   #$0F
+         jmp   $D000
+
+callback2
+         jsr   $D432
+         ldy   $DFD4
+         lda   $DFD3
+         beq   checksec
+         cmp   #4
+         bne   nottrack
+         cpy   #$0A
+         bne   nottrack
+         lda   #$A6
+         sta   $A42F
+         lda   #$FA
+         sta   $A430
+         bne   nottrack
+
+checksec
+         cpy   #$0D
+         bne   nottrack
+         lda   #$A6
+         sta   $3DD
+         lda   #$FA
+         sta   $3DE
+
+nottrack
+         clc
+         jmp   $D403
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}