From ec75820f64eaaa5903bc1c8c9ea4fe7f4cd0240c Mon Sep 17 00:00:00 2001
From: frankmilliron <34376619+frankmilliron@users.noreply.github.com>
Date: Fri, 22 Oct 2021 13:04:45 -0700
Subject: [PATCH] Better fix for Night Stalker demo (#394)

* Add files via upload

* Add files via upload
---
 res/DEMO/NIGHT.STALKER   | Bin 291 -> 291 bytes
 src/demo/night.stalker.a |  13 +++++++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/res/DEMO/NIGHT.STALKER b/res/DEMO/NIGHT.STALKER
index fb21aeff0ce4a08894680e4a5c1d2a3180520b96..4bbcb046d75e8318611806b2f0f28fa216b9527c 100755
GIT binary patch
delta 31
ncmZ3?w3tbBB|~pdV(*N^m5jZ;iM=xuJ(u?OB~CD&=y4kW$+HcX

delta 31
ncmZ3?w3un4sIdq`?<eNof6OZxdp|Sx{%2mfr1uN+ME5%Yzqk#F

diff --git a/src/demo/night.stalker.a b/src/demo/night.stalker.a
index b8ca54e25..c1c7af754 100644
--- a/src/demo/night.stalker.a
+++ b/src/demo/night.stalker.a
@@ -1,5 +1,5 @@
 ;license:MIT
-;(c) 2021 by qkumba
+;(c) 2021 by qkumba/Frank M.
 
 !cpu 6502
 !to "res/DEMO/NIGHT.STALKER",plain
@@ -8,6 +8,16 @@
          !source "src/constants.a"   ; no code in these
          !source "src/macros.a"
 
+
+         lda   #0
+         sta   $618C                 ; fix reset
+         sta   $6198                 ; fix IRQ
+         lda   #1
+         sta   $618D                 ; fix reset
+         sta   $6199                 ; fix IRQ
+         eor   #$A5
+         sta   $618E                 ; fix reset checksum
+                                     ; (game picks up vectors from un-initialized memory)
          +READ_RAM2_WRITE_RAM2
          jsr   EnableAccelerator
          +LOAD_FILE_AT night_stalker, $00
@@ -16,7 +26,6 @@
          sta   $6017
          sta   $603F
          jsr   $800
-         +RESET_AND_IRQ_VECTOR $100
          lda   #$92
          sta   $0D
          lda   #$72