fix major stack bug

term.tal

@@ -23,6 +23,7 @@
 |10 @Console    [ &vect $2 &r $1 &pad $5 &w $1 ]
 |20 @Screen     [ &vect $2 &w $2 &h $2 &auto  $1 &pad $1 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1 ]
 |80 @Controller [ &vect $2 &button $1 &key $1 &fn $1 ]
+|a0 @File       [ &vect $2 &ok $2 &stat $2 &del $1 &append $1 &name $2 &len $2 &r $2 &w $2 ]
 
 |0000
     @tint    $1 ( draw mode. 01=regular, 04=inverted )
@@ -68,7 +69,10 @@
     ;on-key .Controller/vect DEO2 ( set up keyboard )
     ;on-read .Console/vect DEO2   ( set up stdin )
 
-    ( return )
+    ( set up debug log )
+    ;debug .File/name DEO2
+    #01 .File/append DEO
+
     BRK
 
 @first-addr ( -> )
@@ -164,8 +168,8 @@
         ,ctrl? JSR ,on-ctrl-key JCN
         .Controller/key DEI .Console/w DEO BRK
 
-@ctrl? ( -> down? ) .Controller/button DEI #01 AND JMP2r
-@alt?  ( -> down? ) .Controller/button DEI #02 AND JMP2r
+@ctrl? ( -> is-down? ) .Controller/button DEI #01 AND JMP2r
+@alt?  ( -> is-down? ) .Controller/button DEI #02 AND JMP2r
 
 ( alt-XYZ emits ESC and then emits XYZ )
 @on-alt-key ( -> )
@@ -192,8 +196,22 @@
     DUP LIT "9 GTH ;end-arg JCN2
     ;add-to-arg JMP2
 
+@debug-seq ( c^ -> )
+    ;scratch STH2
+    LIT "1 STH2kr STA INC2r
+    LIT "b STH2kr STA INC2r
+    #20    STH2kr STA INC2r
+    LIT "[ STH2kr STA INC2r
+    #20    STH2kr STA INC2r
+           STH2kr STA INC2r
+    #0a    STH2r  STA
+    #0007 .File/len DEO2
+    ;scratch .File/w DEO2
+    JMP2r
+
 @end-arg ( c^ -> )
     ;on-read .Console/vect DEO2
+    DUP ,debug-seq JSR
     DUP LIT "h EQU ;exec-noop JCN2         ( enable line wrap )
     DUP LIT "l EQU ;exec-noop JCN2         ( disable line wrap )
     DUP LIT "m EQU ;exec-noop JCN2         ( set attr )
@@ -273,8 +291,20 @@
     #0001 ;read-arg-2 JSR2 #0001 SUB2 ( col )
     ;goto JSR2 BRK
 
+@debug-esc ( c^ -> )
+    ;scratch STH2
+    LIT "1 STH2kr STA INC2r
+    LIT "b STH2kr STA INC2r
+    #20    STH2kr STA INC2r
+           STH2kr STA INC2r
+    #0a    STH2r  STA
+    #0005 .File/len DEO2
+    ;scratch .File/w DEO2
+    JMP2r
+
 @on-read-esc ( -> )
     .Console/r DEI LIT "[ EQU ;start-seq JCN2
+    .Console/r DEI ,debug-esc JSR
     ;on-read .Console/vect DEO2
     ;on-read JMP2
 
@@ -287,7 +317,7 @@
     .Console/r DEI
     DUP ,&ok JCN POP BRK
     &ok #41 .tint STZ
-    ;read JSR2 BRK
+    ;read JMP2
 
 @read ( c^ -> )
     DUP #20 LTH ;read-ctrl JCN2    
@@ -303,7 +333,7 @@
     DUP #1b EQU ;read-esc JCN2
 
 @read-bel ( 07 -> )
-    POP JMP2r ( TODO: flash terminal )
+    POP BRK ( TODO: flash terminal )
 
 @read-bs ( 08 -> )
     POP
@@ -316,7 +346,7 @@
     POP ;on-read-esc .Console/vect DEO2 BRK
 
 @read-del ( 7f -> )
-    POP JMP2r
+    POP BRK
 
 ( @read-tab POP JMP2r )
 @read-tab
@@ -330,19 +360,19 @@
     POP JMP2r
 
 @read-cr ( 0d -> )
-    POP ;hide-cursor JSR2 #0000 .cur-x STZ2 JMP2r
+    POP ;hide-cursor JSR2 #0000 .cur-x STZ2 BRK
 
 @at-max-y ( -> true? )
     .cur-y LDZ2 .max-y LDZ2 EQU2 JMP2r
 
 @read-nl ( 0a -> )
     POP ;hide-cursor JSR2
-    ,at-max-y JSR ;scroll JCN2 ;down JMP2
+    ,at-max-y JSR ;scroll JCN2 ;down JSR2 BRK
 
 @read-printable ( c -> )
     DUP ;cursor-addr JSR2 STA
     ;draw-tile JSR2
-    ;forward JMP2
+    ;forward JSR2 BRK
 
 @goto ( y* x* -> )
     ;hide-cursor JSR2
@@ -389,7 +419,7 @@
         INC2r GTH2kr STHr ,&loop JCN
     POP2r POP2r
     #01 .dirty? STZ
-    ;show-cursor JMP2
+    ;show-cursor JSR2 BRK
 
 @cursor-addr ( -> addr* )
     .cur-y LDZ2 .cols LDZ2 MUL2
@@ -447,6 +477,9 @@
     INCr STHkr ,&loop JCN
     POPr POP2 POP2 JMP2r
 
+@debug "debug_term.log 00
+@scratch $40
+
 ( store up to 8 arguments for control sequences )
 @args $10 &pos $2