diff --git a/asm/vm.fnl b/asm/vm.fnl
index b3741b7..d1d898f 100644
--- a/asm/vm.fnl
+++ b/asm/vm.fnl
@@ -113,13 +113,6 @@
     [:lda [vm.IP] :y] [:sta vm.WH]
     (inc16 vm.IP vm.IPH)
 
-  ;   [:lda vm.WH]
-  ;   [:jsr mon.hexout]
-  ;   [:lda vm.W]
-  ;   [:jsr mon.hexout]
-  ;   [:lda (achar " ")]
-  ;   [:jsr mon.putchar]
-
     [:jmp [vm.W]])
 
   (code1:append :reset
@@ -376,6 +369,12 @@
       [:lda 0xff] (vm:drop) [:sta vm.TOP :x] [:sta vm.TOPH :x] (vm:ret)
      :noteq
       [:lda 0] (vm:drop) [:sta vm.TOP :x] [:sta vm.TOPH :x]])
+
+  (vm:def :& ; a b -- c
+    [:lda vm.TOP :x] [:and vm.ST1 :x] [:sta vm.ST1 :x]
+    [:lda vm.TOPH :x] [:and vm.ST1H :x] [:sta vm.ST1H :x]
+    (vm:drop))
+
   vm)
 
 {:new mk-vm}
diff --git a/game/init.fnl b/game/init.fnl
index 287076d..05c9b9b 100644
--- a/game/init.fnl
+++ b/game/init.fnl
@@ -4,9 +4,8 @@
 (local tile (require :game.tiles))
 (local link (require :link))
 (local {: lo : hi} (require :lib.util))
-
+(local {: walkable} tile.flag-to-bit)
 (local prg (asm.new))
-; (prg:debug-to "test.dbg")
 
 (local tiles (prg:org 0x4100))
 (local vm (VM.new prg))
@@ -143,11 +142,27 @@
   ; we save some cycles by storing the indices as lllhhhhh, so we don't need to shift them'
   [:lda vm.TOP :x] [:tay]
   [:and 0x1f]
-  [:clc] [:adc #(do (pp tiles) (hi tiles.org))]
+  [:clc] [:adc #(hi tiles.org)]
   [:sta vm.TOPH :x]
   [:tya] [:and 0xe0]
   [:sta vm.TOP :x])
 
+(fn rot8l [n] ; clears carry
+  (local block [:block [:clc]])
+  (for [_ 1 n] (table.insert block [:block [:asl :a] [:adc 0]]))
+  block)
+
+(vm:def :lookup-flags ; itile -- flags
+  [:lda vm.TOP :x]
+  (rot8l 3) ; lllhhhhh > hhhhhlll
+  [:adc #(lo ($1:lookup-addr :tileflags))]
+  [:sta vm.W]
+  [:lda #(hi ($1:lookup-addr :tileflags))]
+  [:adc 0]
+  [:sta vm.WH]
+  [:ldy 0] [:lda [vm.W] :y]
+  [:sta vm.TOP :x])
+
 (vm:def :itile-at ; yx -- itile
   [:lda (- maph 1)]
   [:sec]
@@ -226,12 +241,17 @@
   :yx>screen :jaye-tile :drawtile)
 
 (vm:word :handle-key :read-key :move-jaye)
+(vm:word :bump-jaye ; dir yx -- yx
+  :dup :>rot :yx+ ; yxold yxnew
+  :dup :itile-at :lookup-flags ; yxold yxnew flags
+  walkable :& (vm:if [:swap :drop] [:drop]))
+
 (vm:word :move-jaye ; key --
   :movement-dir :dup (vm:if [
     :dup :jaye-dir :set ; dir
     :jaye-yx :get       ; dir yx
     :dup :drawtile-at   ; dir yx
-    :yx+                ; yx
+    :bump-jaye          ; yx
     :dup :jaye-yx :set  ; yx
     :draw-jaye-yx       ;
   ] [:drop]))
diff --git a/game/map00001.json b/game/map00001.json
index ba8ecc1..e4cbc2e 100644
--- a/game/map00001.json
+++ b/game/map00001.json
@@ -1 +1 @@
-{"map":"212121214121212121212121212141212121212161026161610261616102616161616102616161216143C0C0E2C0C0C0C0C0C06361C0C0C0C0C0612161C0C0A282C0C0C0A2C0C0C081C080C0C0C2024161C0C0C0C0C0C0C0C0C2C0A2C1A2C0C0E082612161E2C08282C0C0C0C0A2C0C06161616161616121616161616161C181616161616143C0C0E282612161C0C0C0C0C0C0C0C0C0C0C061C0C0C0C0C0022161E08282A2C0C0C0C0E2C0C081C0C0C0C003612161E2C2C2C0C0C0C0C0C0C0C061C0C0C0C0C06141610303C063E2C0C0C0C0C0C061C0C0C023C061216161616161616161228161616161616161610221","objects":[{"func":"neutterm","x":17,"y":8,"link":6},{"func":"door","x":13,"y":9},{"func":"switch","x":13,"y":8,"link":2},{"func":"door","x":8,"y":6},{"func":"switch","x":7,"y":6,"link":4},{"func":"termtut","x":2,"y":4,"link":1},{"func":"scantut","x":9,"y":1,"link":8},{"x":10,"func":"exit","linkword":"","name":"","y":1}]}
\ No newline at end of file
+{"map":"212121214121212121212121212141212121212161026161610261616102616161616102616161216143C0C0E2C0C0C0C0C0C06361C0C0C0C0C0612161C0C0A282C0C0C0A2C0C0C081C0C0C0C0C2024161C0C0C0C0C0C0C0C0C2C0A2C1A2C0C0E082612161E2C08282C0C0C0C0A2C0C06161006161616121616161616161C181616161616143C0C0E282612161C0C0C0C0C0C0C0C0C0C0C061C0C0C0C0C0022161E08282A2C0C0C0C0E2C0C081C0C0C0C003612161E2C2C2C0C0C0C0C0C0C0C061C0C0C0C0C06141610303C063E2C0C0C0C0C0C061C0C0C023C061216161616161616161228161616161616161610221","objects":[{"func":"neutterm","x":17,"y":8,"link":6},{"func":"door","x":13,"y":9},{"func":"switch","x":13,"y":8,"link":2},{"func":"door","x":8,"y":6},{"func":"switch","x":7,"y":6,"link":4},{"func":"termtut","x":2,"y":4,"link":1},{"func":"scantut","x":9,"y":1,"link":8},{"x":10,"func":"exit","name":"","linkword":"","y":1}]}
\ No newline at end of file
diff --git a/game/tiles.fnl b/game/tiles.fnl
index 65313d6..9524439 100644
--- a/game/tiles.fnl
+++ b/game/tiles.fnl
@@ -2,6 +2,9 @@
 (local lume (require :lib.lume))
 
 (local flags [:walkable :neutable :debris])
+(local flag-to-bit {})
+(each [iflag flag (ipairs flags)]
+  (tset flag-to-bit flag (bit.lshift 1 (- iflag 1))))
 
 (fn deserialize [tile]
   (match (type tile)
@@ -16,11 +19,17 @@
 (fn appendtiles [tiles org]
   (each [_ tile (ipairs tiles)]
     (when tile.label (org:append tile.label))
-    (org:append [:bytes tile.gfx])))
+    (org:append [:bytes tile.gfx]))
+  (org:append :tileflags)
+  (each [_ tile (ipairs tiles)]
+    (var flags 0)
+    (each [flag _ (pairs tile.flags)]
+      (set flags (bit.bor flags (. flag-to-bit flag))))
+    (org:append [:db flags])))
 
 (fn appendmaps [org]
   (local map (util.readjson "game/map00001.json"))
   (org:append :map [:bytes (map.map:fromhex)]))
 
-{: loadtiles : savetiles : appendtiles : appendmaps : flags}
+{: loadtiles : savetiles : appendtiles : appendmaps : flags : flag-to-bit}
 
diff --git a/game/tiles.json b/game/tiles.json
index df8c264..3c4f68e 100644
--- a/game/tiles.json
+++ b/game/tiles.json
@@ -1 +1 @@
-[{"gfx":"000000020A0820406A4020080A02000000010141511005025702051051410100","word":"","label":"","flags":[]},{"word":"","gfx":"00000000020A0820406A4020080A020000000101415110050257020510514101","flags":[]},{"gfx":"808080C0C0C0E0C0D0C8C04040404080808083858585828A9282820A08081980","word":"","label":"jaye-e","flags":[]},{"gfx":"8080C0A0A0A0C0C0D0C8C0501010188080808183838782828A8A920202020380","word":"","label":"jaye-w","flags":[]},{"gfx":"8080E0B0B0B098C0D0D0C840404060808080878D8D8D99828A8A920202020780","word":"","label":"jaye-s","flags":[]},{"gfx":"8080C0E0E0E0B0C0D0C8C040404060808080838787878D828A92820202020780","word":"","label":"jaye-n","flags":[]},{"gfx":"80808C8080808080B08080808C808080808C80808083B0808080808080868080","word":"","label":"","flags":{"walkable":true}},{"word":"term","gfx":"007C0C0C0C0C7C007C7E7EAA88888800001F181818181F001F0F979584848400","flags":[]},{"gfx":"007C2C0C0C2C7C007C7E7EAA88888800001F18191C191F001F0F979584848400","word":"term","label":"","flags":{"neutable":true}},{"gfx":"D5D5D5D5D5D5D5D5D5D5D5D5D5D5D5D5AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA","word":"","label":"","flags":[]},{"word":"","gfx":"D5D5D5D5D5F5F5FDDDD5D5D5D5D5D5D5AAAAAAAAAEAEBFBFBFABAAAAAAAAAAAA","flags":[]},{"word":"","gfx":"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF","flags":{"neutable":true}},{"word":"door","gfx":"FF8FA7B3B3B3B3B3B3B3B3B3B3B383FFFFF8F2E6E6E6E6E6E6E6E6E6E6E6E0FF","flags":[]},{"word":"door","gfx":"FF8F87838383838383838383838383FFFFF8F0E0E0E0E0E0E0E0E0E0E0E0E0FF","flags":{"walkable":true}},{"word":"switch","gfx":"FFFFCFCFCFCF898183838787878FFFFFFFFCE4E4E4E4E0E0E0E0E0E0F0F8FFFF","flags":{"neutable":true}},{"word":"switch","gfx":"FFFFCFCFCFCF898123232727878FFFFFFFFCE4E4E4E0E0616565656571F8FFFF","flags":{"neutable":true}},{"flags":[],"gfx":"FFFF83D3D3D3D3D3D3D3D3D3D383FFFFFFFFC0CACACECACBCACACACACAC0FFFF"},{"word":"scan","gfx":"FFFFAFEBFBFBFBBBBBFBFBFBEBAFFFFFFFFFF5D7DFDFDFDDDDDFDFDFD7F5FFFF","flags":{"neutable":true}},{"word":"scan","gfx":"FFFF2F2B2B2B6B6B6B6B2B2B2B2FFFFFFFFF755555555757575755555575FFFF","flags":{"neutable":true}},{"flags":[],"gfx":"FFF3C78FBFFCF98187BFFFFFBF9F9FC7FFCFE1F1FCFCF8FEFEFCF9F0E6CE8F9F"},{"flags":[],"gfx":"80808C80808080A8AAAAAAA888888880808C8080808380859595958584848480"},{"flags":{"debris":true},"gfx":"80808C8080A0A0A8AAAA8AA0A8808080808C8081919090848594959585858080"},{"word":"","gfx":"00005054545450404054545010383800000C0A2A2A2A0A03032A2A0A081C1C00","flags":[]},{"word":"","gfx":"0000001C1C10545040606010545454000030070702020A0A0100020A080A0200","flags":{"debris":true}},{"word":"","gfx":"80A0A8AA92D2D2AAC2C2AA92D2AA808080959595949494959494959494858080","flags":[]},{"word":"","gfx":"80808C808080A8C292AAAAAAAA8AC0D0808C80808083959290959194948580A8","flags":{"debris":true}},{"word":"","gfx":"80806008282A0800202880A8A8A8A08080980000141501051511819595958580","flags":[]},{"word":"","gfx":"80808C808080A0A8AAAA8AA2AAAAAA80808C0000000330010105051511010514","flags":{"debris":true}},{"gfx":"0000000000000000000000000000000000000000000000000000000000000000","word":"","label":"","flags":[]}]
\ No newline at end of file
+[{"gfx":"1F1F18020A0823406A4023080A02181F78791941511065025702651051411978","word":"","label":"neut1","flags":[]},{"gfx":"7F1F1F00020A0823406A4023080A02187F787901415110650257026510514119","word":"","label":"neut2","flags":[]},{"gfx":"808080C0C0C0E0C0D0C8C04040404080808083858585828A9282820A08081980","word":"","label":"jaye-e","flags":[]},{"gfx":"8080C0A0A0A0C0C0D0C8C0501010188080808183838782828A8A920202020380","word":"","label":"jaye-w","flags":[]},{"gfx":"8080E0B0B0B098C0D0D0C840404060808080878D8D8D99828A8A920202020780","word":"","label":"jaye-s","flags":[]},{"gfx":"8080C0E0E0E0B0C0D0C8C040404060808080838787878D828A92820202020780","word":"","label":"jaye-n","flags":[]},{"gfx":"80808C8080808080B08080808C808080808C80808083B0808080808080868080","word":"","label":"","flags":{"walkable":true}},{"word":"term","gfx":"007C0C0C0C0C7C007C7E7EAA88888800001F181818181F001F0F979584848400","flags":[]},{"gfx":"007C2C0C0C2C7C007C7E7EAA88888800001F18191C191F001F0F979584848400","word":"term","label":"","flags":{"neutable":true}},{"gfx":"D5D5D5D5D5D5D5D5D5D5D5D5D5D5D5D5AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA","word":"","label":"","flags":[]},{"word":"","gfx":"D5D5D5D5D5F5F5FDDDD5D5D5D5D5D5D5AAAAAAAAAEAEBFBFBFABAAAAAAAAAAAA","flags":[]},{"gfx":"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF","word":"","label":"","flags":{"neutable":true}},{"word":"door","gfx":"FF8FA7B3B3B3B3B3B3B3B3B3B3B383FFFFF8F2E6E6E6E6E6E6E6E6E6E6E6E0FF","flags":[]},{"gfx":"FF8F87838383838383838383838383FFFFF8F0E0E0E0E0E0E0E0E0E0E0E0E0FF","word":"door","label":"","flags":{"walkable":true}},{"word":"switch","gfx":"FFFFCFCFCFCF898183838787878FFFFFFFFCE4E4E4E4E0E0E0E0E0E0F0F8FFFF","flags":{"neutable":true}},{"word":"switch","gfx":"FFFFCFCFCFCF898123232727878FFFFFFFFCE4E4E4E0E0616565656571F8FFFF","flags":{"neutable":true}},{"flags":[],"gfx":"FFFF83D3D3D3D3D3D3D3D3D3D383FFFFFFFFC0CACACECACBCACACACACAC0FFFF"},{"word":"scan","gfx":"FFFFAFEBFBFBFBBBBBFBFBFBEBAFFFFFFFFFF5D7DFDFDFDDDDDFDFDFD7F5FFFF","flags":{"neutable":true}},{"word":"scan","gfx":"FFFF2F2B2B2B6B6B6B6B2B2B2B2FFFFFFFFF755555555757575755555575FFFF","flags":{"neutable":true}},{"flags":[],"gfx":"FFF3C78FBFFCF98187BFFFFFBF9F9FC7FFCFE1F1FCFCF8FEFEFCF9F0E6CE8F9F"},{"flags":[],"gfx":"80808C80808080A8AAAAAAA888888880808C8080808380859595958584848480"},{"flags":{"debris":true},"gfx":"80808C8080A0A0A8AAAA8AA0A8808080808C8081919090848594959585858080"},{"word":"","gfx":"00005054545450404054545010383800000C0A2A2A2A0A03032A2A0A081C1C00","flags":[]},{"word":"","gfx":"0000001C1C10545040606010545454000030070702020A0A0100020A080A0200","flags":{"debris":true}},{"word":"","gfx":"80A0A8AA92D2D2AAC2C2AA92D2AA808080959595949494959494959494858080","flags":[]},{"word":"","gfx":"80808C808080A8C292AAAAAAAA8AC0D0808C80808083959290959194948580A8","flags":{"debris":true}},{"word":"","gfx":"80806008282A0800202880A8A8A8A08080980000141501051511819595958580","flags":[]},{"word":"","gfx":"80808C808080A0A8AAAA8AA2AAAAAA80808C0000000330010105051511010514","flags":{"debris":true}},{"gfx":"0000000000000000000000000000000000000000000000000000000000000000","word":"","label":"","flags":[]}]
\ No newline at end of file
diff --git a/link/mame.fnl b/link/mame.fnl
index 64458e7..25ae13a 100644
--- a/link/mame.fnl
+++ b/link/mame.fnl
@@ -51,6 +51,7 @@
        (f)
        (tset periodic-jobs id nil)))")
   (self:start-cpu-monitor)
+  (self:continue) ; debug mame starts paused
   (self:done-msg))
 (fn Machine.start-cpu-monitor [self ?last-addr]
   (self.monitor:eval-input