From c17407bb7c186a5ee7ac4e461a87e8fd3dc443df Mon Sep 17 00:00:00 2001
From: Peter Ferrie <peter.ferrie@gmail.com>
Date: Sun, 29 Dec 2019 20:34:18 -0800
Subject: [PATCH] some reset fixes

---
 src/prelaunch/black.magic.a    | 43 ++++++++++++++++++++++++++++++++++
 src/prelaunch/spider.raid.a    | 24 +++++++++++++++++++
 src/prelaunch/warp.destroyer.a | 24 +++++++++++++++++++
 src/prelaunch/xevious.a        |  9 +++++++
 4 files changed, 100 insertions(+)
 create mode 100644 src/prelaunch/black.magic.a
 create mode 100644 src/prelaunch/spider.raid.a
 create mode 100644 src/prelaunch/warp.destroyer.a

diff --git a/src/prelaunch/black.magic.a b/src/prelaunch/black.magic.a
new file mode 100644
index 000000000..e5b60eb86
--- /dev/null
+++ b/src/prelaunch/black.magic.a
@@ -0,0 +1,43 @@
+;license:MIT
+;(c) 2019 by qkumba
+
+!cpu 6502
+!to "build/PRELAUNCH/BLACK.MAGIC",plain
+*=$106
+
+    !source "src/prelaunch/common.a"
+
+         +ENABLE_ACCEL
+         lda   #$60
+         sta   $9C2
+         jsr   $800       ; decompress
+
+         lda   #$60
+         sta   $1B2D
+         sta   $D6E6
+         jsr   DisableAccelerator
+         jsr   $1B00
+         jsr   EnableAccelerator
+         jsr   $D000
+         lda   #$4C
+         sta   $D6EB
+         lda   #<callback
+         sta   $8D5
+         lda   #>callback
+         sta   $8D6
+         jsr   DisableAccelerator
+         jmp   $800
+
+callback
+         jsr   EnableAccelerator
+         jsr   $D003
+         lda   #$A6
+         sta   $4183
+         lda   #$FA
+         sta   $4184
+         jsr   DisableAccelerator
+         jmp   $D6EE
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}
diff --git a/src/prelaunch/spider.raid.a b/src/prelaunch/spider.raid.a
new file mode 100644
index 000000000..9cb63e23a
--- /dev/null
+++ b/src/prelaunch/spider.raid.a
@@ -0,0 +1,24 @@
+;license:MIT
+;(c) 2019 by qkumba
+
+!cpu 6502
+!to "build/PRELAUNCH/SPIDER.RAID",plain
+*=$106
+
+    !source "src/prelaunch/common.a"
+
+         +ENABLE_ACCEL
+         lda   #$60
+         sta   $3F0E
+         jsr   $3EB9      ; decompress
+         lda   #$60
+         sta   $40F1
+         jsr   $4000
+         +RESET_VECTOR $100
+
+         +DISABLE_ACCEL
+         jmp   $4246
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}
diff --git a/src/prelaunch/warp.destroyer.a b/src/prelaunch/warp.destroyer.a
new file mode 100644
index 000000000..ff4d9454e
--- /dev/null
+++ b/src/prelaunch/warp.destroyer.a
@@ -0,0 +1,24 @@
+;license:MIT
+;(c) 2019 by qkumba
+
+!cpu 6502
+!to "build/PRELAUNCH/WARP.DESTROYER",plain
+*=$106
+
+    !source "src/prelaunch/common.a"
+
+         +ENABLE_ACCEL
+         lda   #$4C
+         sta   $893
+         jsr   $800      ; decompress
+         ldx   #1
+         stx   $6692
+         dex
+         stx   $669C
+         +DISABLE_ACCEL
+         lda   #0
+         jmp   $896
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}
diff --git a/src/prelaunch/xevious.a b/src/prelaunch/xevious.a
index cf56272d7..c664a7bc7 100644
--- a/src/prelaunch/xevious.a
+++ b/src/prelaunch/xevious.a
@@ -16,6 +16,11 @@
          lda   #>patch1
          sta   $35E5
          jmp   $34AA      ; decompress 1
+
+reset
+         +READ_ROM_NO_WRITE
+         jmp   $FAA6
+         
 patch1
          +DISABLE_ACCEL
          lda   #<patch2
@@ -33,6 +38,10 @@ patch2
          sta   $750D      ; patch - don't increase lives
          sta   $894F      ; patch - don't increase lives
 +
+         lda   #<reset
+         sta   $FFFC
+         lda   #>reset
+         sta   $FFFD
          jmp   $0600
 
 !if * > $1C0 {