client is WORKING! move server data dir to somewhere in /opt

server/config.h

@@ -2,4 +2,4 @@
 #define MAX_USERS 64
 
 /* Path to cart/realm storage (must include trailing slash) */
-#define DATA_DIR "/home/nilix/src/9/xrxs/server/carts/"
+#define DATA_DIR "/opt/xrxs/carts/"

uxn-client/xrxs.tal

@@ -22,7 +22,7 @@
 
 |00 @System     [ &vector $2 &wst      $1 &rst    $1 &pad   $4 &r      $2 &g      $2 &b    $2 &debug  $1 &halt $1 ]
 |10 @Console    [ &vector $2 &read     $1 &pad    $5 &write $1 &error  $1 ]
-|20 @Screen     [ &vector $2 &width    $2 &height $2 &pad   $2 &x      $2 &y      $2 &addr $2 &pixel  $1 &sprite $1 ]
+|20 @Screen     [ &vector $2 &width    $2 &height $2 &auto $1 &pad   $1 &x      $2 &y      $2 &addr $2 &pixel  $1 &sprite $1 ]
 |30 @Audio0     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr $2 &volume $1 &pitch $1 ]
 |40 @Audio1     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr $2 &volume $1 &pitch $1 ]
 |50 @Audio2     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr $2 &volume $1 &pitch $1 ]
@@ -57,7 +57,7 @@
 @sb-pos $1
 @sb-step $1
 
-@cart $32
+@cart-len $1
 
 ( program )
 
@@ -122,6 +122,11 @@
   #ff .btn-state STZ
   GET-USABLE-HEIGHT .list-height STZ
   
+  ;carts-file .File/name DEO2
+  #2000 .File/length DEO2
+  ;list-buf .File/load DEO2
+  .File/success DEI2 .list-len STZ2
+  
   CENTER-X .logo-coords/x STZ2
   CENTER-Y .logo-coords/y STZ2
   
@@ -171,10 +176,7 @@ BRK
     ;draw-xrxs-logo-xr JSR2
     ;draw-xrxs-logo-xs JSR2
     .logo-coords/x LDZ2 #0020 GTH2 ,&keep-state JCN
-      ;carts-file .File/name DEO2
+
-      #2000 .File/length DEO2
-      ;list-buf .File/load DEO2
-      .File/success DEI2 .list-len STZ2
       INC .state STZ 
       ;get-select-idx-by-mouse .Mouse/vector DEO2
       ;get-select-idx-by-key .Controller/vector DEO2 BRK
@@ -221,7 +223,12 @@ BRK
         ;draw-pointer JSR2
         POP
       BRK
-  &state6 POP
+  &state6
+    [ ;load-cmd
+      CENTER-X OVR2 ;strlen JSR2 #20 SFT2 SUB2 
+      CENTER-Y #0004 SUB
+      #02 ] ;draw-string JSR2
+    POP
 BRK
 
 @clear-screen ( -> )
@@ -489,7 +496,20 @@ RTN
   ,&while JMP &end
 
 RTN
-    
+
+
+@draw-cart-name ( -> )
+
+ ;get-entry-color JSR2 #0c NEQ ,&no-store-cart JCN
+    ;store-cart JSR2 
+  &no-store-cart
+  [ ;word
+    .Screen/x DEI2
+    .Screen/y DEI2
+    ;get-entry-color JSR2 ] ;draw-string JSR2
+  ;finish-line JSR2
+
+RTN
   
 
 @render-cart-list ( -> )
@@ -516,11 +536,7 @@ RTN
       #00 .list-elem-offset LDZ ;word ADD2 STA
       ( if the word isn't in the scroll window, don't draw it )
       ;shouldnt-draw-word JSR2 ,&no-draw JCN
-      [ ;word
+        ;draw-cart-name JSR2
-        .Screen/x DEI2
-        .Screen/y DEI2
-        ;get-entry-color JSR2 ] ;draw-string JSR2
-      ;finish-line JSR2
       #0040 .Screen/x DEO2
       INC-Y
       &no-draw
@@ -535,6 +551,18 @@ RTN
   
 RTN
 
+@store-cart ( -> )
+
+  #20 #00 &while EQUk ,&end JCN
+    DUP TOS ;word ADD2 LDA
+    
+    SWP DUP TOS ;cart ADD2
+    ROT STH STA
+    STHr
+  INC ,&while JMP &end POP2
+  RTN
+RTN
+
 @get-entry-color ( -- colorByte )
 
   .list-offset LDZ
@@ -835,53 +863,127 @@ RTN
 RTN
 
 @load-cart ( -> )
-  &lines #00
-  &chars #00
 
-  .list-len LDZ2 #0000 &while EQU2k ,&end JCN
+  .state LDZ INC .state STZ
-    ( find the cartridge that matches our select-index )
+  
-    DUP ;list-buf ADD2 LDA
+  ( send it! ) 
-    #0a NEQ ,&no-newline JCN
-      ,&lines LDR INC ,&lines STR
-    &no-newline
-    ,&lines LDR .select-index LDZ NEQ ,&while JCN
-    DUP2
-    ( store characters for this cartridge )
-    #20 #00 &getchar EQU2k ,&end-getchar JCN
-      STHk SWP2 ;list-buf ADD2 LDA
-      DUP #00 EQU ,&name-copied JCN
-      SWP .cart ADD STZ
-      ,&chars LDR INC ,&chars STR
-      STHr
-    INC ,&getchar JMP &end-getchar POP2
-  INC ,&while JMP &end POP2 POP2 RTN
-
-  ( append the null byte and clear the stacks )
-  &name-copied
-  #00 .cart ,&chars LDR INC ADD STZ
-  POPr POP2 POP2 POP2
-
-  ( append the cartridge name to the load command )
-  ;load-cmd #0005 ADD2
-  ,&chars LDR #00 &compose-cmd EQUk ,&compose-done JCN
-    TOS SWP2 ADD2k ROT2 TOB
-    DUP STH .cart ADD LDZ
-    TOS SWP2 STA POP
-    ROT STHr
-  INC ,&compose-cmd JMP &compose-done POP2 POP2
-
-  ( send it! )
   #0020 .File/length DEO2
   #0001 .File/offset-ls DEO2
   ;ctl-file .File/name DEO2
   ;load-cmd .File/save DEO2
 
-  #0000 .File/offset-ls DEO2
+  ;slot-file ;load-rom JSR2
-  ;slot-file .File/name DEO2
-  LIT 0000 .File/load DEO2
-  LIT 0100 JMP2
 RTN
 
+@load-rom ( filename* -- )
+(
+	Attempts to load the ROM from filename* and executes it. If the file exists
+	and has non-zero length, this function does not return, because the new ROM
+	is executing in its place.
+
+	The screen and both stacks are cleared and all the device vectors are
+	written to zero as a convenience. All other device bytes are left
+	untouched, so they could introduce a device state to the next ROM that
+	it's not expecting.
+)
+
+	.File/name DEO2
+	#0000 .File/offset-hs DEO2
+	#0000 .File/offset-ls DEO2
+
+	( return if file can't be found, or zero length )
+	#0001 .File/length DEO2
+	;&tmp .File/load DEO2
+	.File/success DEI2 ORA JMP JMP2r
+
+	( clear wst )
+	#ab
+	&wst-loop
+	POP
+	.System/wst STH DEIr STHr ,&wst-loop JCN
+
+	( clear rst )
+	LITr ab
+	&rst-loop
+	POPr
+	.System/rst DEI ,&rst-loop JCN
+
+	( clear screen )
+	#01 .Screen/auto DEO
+	#0000 .Screen/y DEO2
+	.Screen/width DEI2 #0007 ADD2 #03 SFT2 #ffff MUL2 STH2
+	&screen-yloop
+		#0000 .Screen/x DEO2
+		STH2kr
+		&screen-xloop-bg
+			#00 .Screen/sprite DEO
+			INC2
+			ORAk ,&screen-xloop-bg JCN
+		POP2
+		#0000 .Screen/x DEO2
+		STH2kr
+		&screen-xloop-fg
+			#40 .Screen/sprite DEO
+			INC2
+			ORAk ,&screen-xloop-fg JCN
+		POP2
+		.Screen/y DEI2 #0008 ADD2
+		DUP2 .Screen/y DEO2
+		.Screen/height DEI2 LTH2 ,&screen-yloop JCN
+	POP2r
+	#00 .Screen/auto DEO
+
+	( reset device vectors )
+	LIT2r 0000 #00
+	&device-vector-loop
+	DUP2r STHk DEO2r
+	#10 ADD
+	DUP ,&device-vector-loop JCN
+	POP POP2r
+
+	( copy the zero-page-loader into f0-ff )
+	;&zero-page-loader LITr f0
+	&copy-loop
+	LDAk STHkr STZ
+	INC2 INCr
+	STHkr ,&copy-loop JCN
+	POP2 ( leave 00 on return stack )
+
+	( prepare the stack for the zero-page-loader )
+	( the more we prepare here in advance, the less we'll have to overwrite )
+	STHkr #00fe ( arguments for STZ2 at ff )
+	STHkr ( argument for JMP at fe (carry on) )
+	DUPk #fcfe ( arguments for STZ2 at fd and JMP (repeat) )
+	OVR2 #fafe ( arguments for STZ2 at fd and JMP (repeat) )
+	OVR2 #f8fe ( arguments for STZ2 at fd and JMP (repeat) )
+	OVR2 #f6fe ( arguments for STZ2 at fd and JMP (repeat) )
+	OVR2 #f401 ( arguments for STZ2 at fd, plus an extra 01 )
+	STHkr ( first argument for ADD2 )
+	.File/success ( argument for DEI2 )
+	#0100 .File/load ( arguments for DEO2 )
+	#ff00 .File/length DEO2
+	#00f0 JMP2
+
+	&zero-page-loader
+	( f0 ) DEO2
+	( f1 ) DEI2
+	( f2 ) ADD2
+	( f3 ) &loop DUPr
+	( f4 ) STH2k
+	( f5 ) STAr
+	( f6 ) INC2
+	( f7 ) NEQ2k
+	( f8 ) ,&loop
+	( f9 )
+	( fa ) JCN
+	( fb ) POPr
+	( fc ) POP2
+	( fd ) STZ2 ( deletes f4-fd through looping )
+	( fe ) JMP
+	( ff ) STZ2 ( deletes fe-ff )
+
+	&tmp $1
+
 @capture-input ( -> )
 
   ;no-instr .Mouse/vector DEO2
@@ -901,7 +1003,8 @@ RTN
 @title-loadCart "Select 20 "A 20 "Cartridge 00
 @title-confirmCart "Load 20 "This 20 "Cartridge? 00
 
-@load-cmd "load 20 $32
+@load-cmd "load 20
+@cart $32
 
 ( sprites )
 @blank $16