From 6812352db308806b6b240785a6cda18be5ab3cf5 Mon Sep 17 00:00:00 2001
From: Philip Zembrod <pzembrod@gmail.com>
Date: Wed, 6 Jul 2022 01:36:15 +0200
Subject: [PATCH 01/10] Detect and message file-not-found condition in INCLUDE

---
 6502/C64/src/vf-cbm-file.fth | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/6502/C64/src/vf-cbm-file.fth b/6502/C64/src/vf-cbm-file.fth
index 5e0d647..210db63 100644
--- a/6502/C64/src/vf-cbm-file.fth
+++ b/6502/C64/src/vf-cbm-file.fth
@@ -18,10 +18,14 @@
    dup 0= swap #cr = or IF 0 exit THEN
    i/o-status? IF 1 exit THEN  -1 ;
 
+| : i/o-status?abort  i/o-status? 3 and IF c64cr
+   fload-dev @ dos-error abort THEN ;
+
 | : freadline ( -- eof )
  fload-dev @ fload-2nd @ busin
+ i/o-status?abort
  tib /tib bounds
- DO bus@ dup eol? under
+ DO bus@ i/o-status?abort dup eol? under
      IF I c! ELSE drop THEN
  dup 0<
    IF drop ELSE I + tib - #tib ! UNLOOP
@@ -35,9 +39,6 @@
 
 \   fload-open  fload-close    30jun20pz
 
-| : i/o-status?abort  i/o-status? IF cr
-   fload-dev @ dos-error abort THEN ;
-
   defer on-fload  ' noop is on-fload
 | : fload-open ( addr c -- )
  on-fload  fload-dev @

From cae5f7c94daa4ca039391f07a799340f744ad73c Mon Sep 17 00:00:00 2001
From: Philip Zembrod <pzembrod@gmail.com>
Date: Sun, 31 Jul 2022 21:56:33 +0200
Subject: [PATCH 02/10] Get v4th-x16 to work with r41 of x16emu and x16 ROM.
 Main change is that c64key? and getkey are implemented through new Kernal API
 calls instead of direct reading the keyboard buffer. A separate intermediate
 test target for r41 is introduced. But also the main x16 target is switched
 to r41 now. Also, the KEEPEMU env var is introduced to run-in-x16emu.sh for
 debugging that has proved its usefulness in cc64 emulator scripts.

---
 6502/C64/Makefile                  | 31 +++++++++++++++++++--------
 6502/C64/emulator/run-in-x16-41.sh |  9 ++++++++
 6502/C64/emulator/run-in-x16emu.sh | 18 ++++++++++++----
 6502/C64/src/vf-lbls-cbm.fth       |  1 +
 6502/C64/src/vf-sys-x16.fth        | 34 ++++++------------------------
 5 files changed, 53 insertions(+), 40 deletions(-)
 create mode 100755 6502/C64/emulator/run-in-x16-41.sh

diff --git a/6502/C64/Makefile b/6502/C64/Makefile
index 3b76b96..c874703 100644
--- a/6502/C64/Makefile
+++ b/6502/C64/Makefile
@@ -34,7 +34,7 @@ clean:
 
 binaries: $(vf_binaries)
 
-test: $(test_resuls) test-v4th-x16-39.result
+test: $(test_resuls)
 
 test64: std64 blk64
 
@@ -93,8 +93,9 @@ cbmfiles/v4th-x16:
 
 $(test_logs): $(test_files_petscii) emulator/run-in-vice.sh
 
-test-v4thblk-c64.log: emulator/v4thblk-c64.T64 disks/scratch.d64
-	rm -f cbmfiles/test.log
+test-v4thblk-c64.log: emulator/v4thblk-c64.T64 disks/empty.d64
+	rm -f cbmfiles/test.log disks/scratch.d64
+	cp disks/empty.d64 disks/scratch.d64
 	DISK9=scratch emulator/run-in-vice.sh v4thblk-c64 \
 	  "include run-blk-tests.fth\n1234567890\n"
 	petscii2ascii cbmfiles/test.log $@
@@ -105,9 +106,10 @@ test-v4th-c64.log: emulator/v4th-c64.T64
 	  "include run-std-tests.fth\n1234567890\n"
 	petscii2ascii cbmfiles/test.log $@
 
-test-v4thblk-c16+.log: emulator/v4thblk-c16+.T64 disks/scratch.d64
-	rm -f cbmfiles/test.log
-	VICE=xplus4 emulator/run-in-vice.sh v4thblk-c16+ \
+test-v4thblk-c16+.log: emulator/v4thblk-c16+.T64 disks/empty.d64
+	rm -f cbmfiles/test.log disks/scratch.d64
+	cp disks/empty.d64 disks/scratch.d64
+	VICE=xplus4 DISK9=scratch emulator/run-in-vice.sh v4thblk-c16+ \
 	  "include run-blk-tests.fth\n1234567890\n"
 	petscii2ascii cbmfiles/test.log $@
 
@@ -136,6 +138,8 @@ test-v4th-x16.log: cbmfiles/v4th-x16 emulator/sdcard.img
 	mcopy -i emulator/sdcard.img ::TEST.LOG cbmfiles/test.log
 	petscii2ascii cbmfiles/test.log $@
 
+test-v4th-x16-39.log: $(test_files_petscii) emulator/run-in-vice.sh
+
 test-v4th-x16-39.log: cbmfiles/v4th-x16 emulator/sdcard.img
 	rm -f cbmfiles/test.log
 	emulator/run-in-x16-39.sh v4th-x16 \
@@ -146,13 +150,22 @@ test-v4th-x16-39.log: cbmfiles/v4th-x16 emulator/sdcard.img
 test-v4th-x16-39.golden: test-v4th-x16.golden
 	cp $< $@
 
+test-v4th-x16-41.log: $(test_files_petscii) emulator/run-in-vice.sh
+
+test-v4th-x16-41.log: cbmfiles/v4th-x16 emulator/sdcard.img
+	rm -f cbmfiles/test.log
+	emulator/run-in-x16-41.sh v4th-x16 \
+	  "include run-std-tests.fth\n1234567890\n"
+	mcopy -i emulator/sdcard.img ::TEST.LOG cbmfiles/test.log
+	petscii2ascii cbmfiles/test.log $@
+
+test-v4th-x16-41.golden: test-v4th-x16.golden
+	cp $< $@
+
 test-%.result: test-%.log test-%.golden tests/evaluate-test.sh
 	rm -f $@
 	tests/evaluate-test.sh $(basename $@)
 
-disks/scratch.d64: disks/empty.d64
-	cp $< $@
-
 emulator/sdcard.img: emulator/sdcard.sfdisk
 	rm -f $@ $@.tmp
 	dd if=/dev/zero of=$@.tmp count=64 bs=1M
diff --git a/6502/C64/emulator/run-in-x16-41.sh b/6502/C64/emulator/run-in-x16-41.sh
new file mode 100755
index 0000000..89487d4
--- /dev/null
+++ b/6502/C64/emulator/run-in-x16-41.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -e
+
+emulatordir="$(realpath --relative-to="$PWD" "$(dirname "${BASH_SOURCE[0]}")")"
+
+export PATH="${HOME}/x16-r41:${PATH}"
+echo "PATH = ${PATH}"
+"${emulatordir}/run-in-x16emu.sh" "$@"
diff --git a/6502/C64/emulator/run-in-x16emu.sh b/6502/C64/emulator/run-in-x16emu.sh
index ab94f63..ea7f15d 100755
--- a/6502/C64/emulator/run-in-x16emu.sh
+++ b/6502/C64/emulator/run-in-x16emu.sh
@@ -1,6 +1,9 @@
 #!/bin/bash
 set -e
 
+executable="${1}"
+keybuf="${2}"
+
 emulatordir="$(realpath --relative-to="$PWD" "$(dirname "${BASH_SOURCE[0]}")")"
 basedir="$(realpath --relative-to="$PWD" "${emulatordir}/..")"
 cbmfilesdir="${basedir}/cbmfiles"
@@ -16,20 +19,27 @@ do
 done
 
 autostart=""
-if [ -n "$1" ]
+if [ -n "${executable}" ]
 then
-  autostart="-prg ${cbmfilesdir}/${1} -run"
+  autostart="-prg ${cbmfilesdir}/${executable} -run"
 fi
 
 script=""
 warp=""
 scale=""
 debug=""
-if [ -n "$2" ]
+if [ -n "${keybuf}" ]
 then
   test -d tmp || mkdir tmp
   rm -f "${x16script}".*
-  echo "load\"${1}\"\nrun\n${2}" | sed 's/\\n/\n/g' > "${x16script}".ascii
+  # Magic env variable KEEPEMU: If set, remove the final CR.
+  if [ -n "${KEEPEMU}" ]; then
+    tr_remove='\n'
+  else
+    tr_remove=''
+  fi
+  echo "load\"${executable}\"\nrun\n${keybuf}" | tr -d "${tr_remove}" \
+      | sed 's/\\n/\n/g' > "${x16script}".ascii
   ascii2petscii "${x16script}.ascii" "${x16script}.petscii"
   script="-bas ${x16script}.petscii"
   autostart=""
diff --git a/6502/C64/src/vf-lbls-cbm.fth b/6502/C64/src/vf-lbls-cbm.fth
index d1a5480..1a2b77d 100644
--- a/6502/C64/src/vf-lbls-cbm.fth
+++ b/6502/C64/src/vf-lbls-cbm.fth
@@ -18,6 +18,7 @@ $FF84 >label IOINIT
 $FFB1 >label LISTEN
 $FFC0 >label OPEN
 $FFF0 >label PLOT
+$FFB7 >label READST
 $FF8A >label RESTOR
 $FF93 >label SECOND
 $FFE1 >label STOP
diff --git a/6502/C64/src/vf-sys-x16.fth b/6502/C64/src/vf-sys-x16.fth
index 084887c..18cbc7e 100644
--- a/6502/C64/src/vf-sys-x16.fth
+++ b/6502/C64/src/vf-sys-x16.fth
@@ -6,10 +6,11 @@ include vf-lbls-cbm.fth
 \ X16 labels
 
 0ffd2 >label ConOut
- 0286 >label IOStatus
+0febd >label KbdbufPeek
+ 0289 >label IOStatus
  028c >label MsgFlg
- 028b >label OutDev
- 028a >label  InDev
+ 028e >label OutDev
+ 028d >label  InDev
 09f2c >label BrdCol
  0266 >label BkgCol
  0284 >label PenCol
@@ -46,33 +47,12 @@ include vf-lbls-cbm.fth
 \ X16 c64key? getkey
 
 Code c64key? ( -- flag)
- RamBank ldx
-\ TODO(issues/33): Remove the lines accessing RamBank38.
- RamBank38 ldy
- 0 # lda  RamBank sta
- RamBank38 sta
- Ndx lda
- 0<> ?[  0FF # lda  ]? pha
- RamBank stx
- RamBank38 sty
+ KbdbufPeek jsr
+ txa  pha
  Push jmp  end-code
 
 Code getkey  ( -- 8b)
- RamBank lda  N sta
-\ TODO(issues/33): Remove the lines accessing RamBank38.
- RamBank38 lda  N 1+ sta
- 0 # lda  RamBank sta
- RamBank38 sta
- Ndx lda  0<>
- ?[  sei  KeyD ldy
-  [[  KeyD 1+ ,X lda  KeyD ,X sta  inx
-      Ndx cpx  0= ?]
-  Ndx dec
-  N lda  RamBank sta
-  N 1+ lda  RamBank38 sta
-  tya  cli  0A0 # cmp
-  0= ?[  bl # lda  ]?
- ]?
+ GETIN jsr
  Push0A jmp   end-code
 
 

From 2c86e4809f5e9169a8630d614c06c1d44ba9ba71 Mon Sep 17 00:00:00 2001
From: Philip Zembrod <pzembrod@gmail.com>
Date: Sun, 31 Jul 2022 23:54:37 +0200
Subject: [PATCH 03/10] Remove references to the Kernal variables InDev and
 OutDev which are needed to implement BUSOFF via CLRCHN and which moved on X16
 between r38 and r41 and will likely change again, and replace with own
 variables and calls to UNLSN and UNTLK.

---
 6502/C64/src/vf-sys-c16.fth |  2 --
 6502/C64/src/vf-sys-c64.fth |  2 --
 6502/C64/src/vf-sys-cbm.fth | 14 +++++++++-----
 6502/C64/src/vf-sys-x16.fth |  2 --
 4 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/6502/C64/src/vf-sys-c16.fth b/6502/C64/src/vf-sys-c16.fth
index 3dd8d44..4c74e42 100644
--- a/6502/C64/src/vf-sys-c16.fth
+++ b/6502/C64/src/vf-sys-c16.fth
@@ -9,8 +9,6 @@ include vf-lbls-cbm.fth
 0ff4c >label ConOut
   090 >label IOStatus
   09a >label MsgFlg
-  099 >label OutDev
-  098 >label  InDev
 0ff19 >label BrdCol
 0ff15 >label BkgCol
  053b >label PenCol
diff --git a/6502/C64/src/vf-sys-c64.fth b/6502/C64/src/vf-sys-c64.fth
index 9eb05de..10e0082 100644
--- a/6502/C64/src/vf-sys-c64.fth
+++ b/6502/C64/src/vf-sys-c64.fth
@@ -9,8 +9,6 @@ include vf-lbls-cbm.fth
 0E716 >label ConOut
   090 >label IOStatus
   09d >label MsgFlg
-  09a >label OutDev
-  099 >label  InDev
 0d020 >label BrdCol
 0d021 >label BkgCol
  0286 >label PenCol
diff --git a/6502/C64/src/vf-sys-cbm.fth b/6502/C64/src/vf-sys-cbm.fth
index 260a63e..44a9d28 100644
--- a/6502/C64/src/vf-sys-cbm.fth
+++ b/6502/C64/src/vf-sys-cbm.fth
@@ -100,7 +100,7 @@ Output: display   [ here output ! ]
 87 fthpage
 
 Code i/o-status?  ( -- n )
-  IOStatus lda  Push0A jmp  end-code
+  READST jsr  Push0A jmp  end-code
 
 \ b/blk drive >drive drvinit  clv14:2x87
 
@@ -131,7 +131,12 @@ Variable (drv    0 (drv !
 
 Variable i/o  0 i/o !  \ Semaphore
 
-Code busoff  ( --)   CLRCHN jsr
+Label LsnDev 0 c,
+Label TlkDev 0 c,
+
+Code busoff  ( --)
+ LsnDev lda  0<> ?[ LsnDev stx  UNLSN jsr ]?
+ TlkDev lda  0<> ?[ TlkDev stx  UNTLK jsr ]?
 Label unlocki/o  1 # ldy  0 # ldx
  ;c:  i/o unlock ;
 
@@ -164,7 +169,7 @@ Label (?dev
  N 2+ lda  (?dev jsr
  N 2+ lda  LISTEN jsr
  N lda  60 # ora SECOND jsr
- N 2+ ldx  OutDev stx
+ N 2+ ldx  LsnDev stx
  xyNext jmp  end-code
 
 
@@ -188,8 +193,7 @@ Label (?dev
  N 2+ lda  TALK jsr
  N lda  60 # ora (C16 $ad sta ( )
  TKSA jsr
-\ because of error in old C16 OS
- N 2+ ldx  InDev stx
+ N 2+ ldx  TlkDev stx
  xyNext jmp end-code
 
 : busin  ( dev 2nd -- )
diff --git a/6502/C64/src/vf-sys-x16.fth b/6502/C64/src/vf-sys-x16.fth
index 18cbc7e..b472e7d 100644
--- a/6502/C64/src/vf-sys-x16.fth
+++ b/6502/C64/src/vf-sys-x16.fth
@@ -9,8 +9,6 @@ include vf-lbls-cbm.fth
 0febd >label KbdbufPeek
  0289 >label IOStatus
  028c >label MsgFlg
- 028e >label OutDev
- 028d >label  InDev
 09f2c >label BrdCol
  0266 >label BkgCol
  0284 >label PenCol

From 3a4eff97c41884d9232b2ee5bee899b42efc66e1 Mon Sep 17 00:00:00 2001
From: Philip Zembrod <pzembrod@gmail.com>
Date: Sun, 7 Aug 2022 22:42:40 +0200
Subject: [PATCH 04/10] Reduce the direct use of the Kernal variable IOStatus
 by using the Kernal API routine READST. Also remove the code referencing the
 old R38 RAM/ROM bank switching registers. Finally remove some unused Kernal
 variable labels.

---
 6502/C64/src/vf-sys-c16.fth |  3 +--
 6502/C64/src/vf-sys-c64.fth |  2 --
 6502/C64/src/vf-sys-cbm.fth |  7 ++++---
 6502/C64/src/vf-sys-x16.fth | 10 ----------
 4 files changed, 5 insertions(+), 17 deletions(-)

diff --git a/6502/C64/src/vf-sys-c16.fth b/6502/C64/src/vf-sys-c16.fth
index 4c74e42..31c6b44 100644
--- a/6502/C64/src/vf-sys-c16.fth
+++ b/6502/C64/src/vf-sys-c16.fth
@@ -9,11 +9,10 @@ include vf-lbls-cbm.fth
 0ff4c >label ConOut
   090 >label IOStatus
   09a >label MsgFlg
+  0ae >label CurDev
 0ff19 >label BrdCol
 0ff15 >label BkgCol
  053b >label PenCol
-  09d >label PrgEnd  \ aka eal; seems unused
-  0b2 >label IOBeg   \ aka stal; seems unused
   0cb >label CurFlg
   0cf >label InsCnt
  0540 >label KeyRep
diff --git a/6502/C64/src/vf-sys-c64.fth b/6502/C64/src/vf-sys-c64.fth
index 10e0082..707573a 100644
--- a/6502/C64/src/vf-sys-c64.fth
+++ b/6502/C64/src/vf-sys-c64.fth
@@ -12,8 +12,6 @@ include vf-lbls-cbm.fth
 0d020 >label BrdCol
 0d021 >label BkgCol
  0286 >label PenCol
-  0ae >label PrgEnd  \ aka eal; seems unused
-  0c1 >label IOBeg   \ aka stal; seems unused
   0d4 >label CurFlg
   0d8 >label InsCnt
  028a >label KeyRep
diff --git a/6502/C64/src/vf-sys-cbm.fth b/6502/C64/src/vf-sys-cbm.fth
index 44a9d28..9b900eb 100644
--- a/6502/C64/src/vf-sys-cbm.fth
+++ b/6502/C64/src/vf-sys-cbm.fth
@@ -151,10 +151,11 @@ Label nodevice     0 # ldx  1 # ldy
 \ ?device                     clv12jul87
 
 Label (?dev
- IOStatus stx (C16 $ae sta ( ) LISTEN jsr
-        \ because of error in OS
+ IOStatus stx  \ because IOStatus isn't cleared by LISTEN or TALK
+ (C16 CurDev sta ( )  \ current device number - because of error in OS
+ LISTEN jsr
  60 # lda  SECOND jsr  UNLSN jsr
- IOStatus lda  0<> ?[ pla pla nodevice jmp ]?
+ READST jsr  0<> ?[ pla pla nodevice jmp ]?
  rts    end-code
 
  Code (?device  ( dev --)
diff --git a/6502/C64/src/vf-sys-x16.fth b/6502/C64/src/vf-sys-x16.fth
index b472e7d..e6d9244 100644
--- a/6502/C64/src/vf-sys-x16.fth
+++ b/6502/C64/src/vf-sys-x16.fth
@@ -12,20 +12,12 @@ include vf-lbls-cbm.fth
 09f2c >label BrdCol
  0266 >label BkgCol
  0284 >label PenCol
-   8a >label PrgEnd  \ aka eal; seems unused
- 0292 >label IOBeg   \ aka stal; seems unused
  0381 >label CurFlg  \ aka qtsw
  0385 >label InsCnt  \ aka insrt
 
-\ TODO(issues/33): Remove the R?mBank38 labels.
-09f60 >label RomBank38
-09f61 >label RamBank38
 1 >label RomBank
 0 >label RamBank
 
-0a000 >label KeyD  \ keyboard buffer
-0a00a >label Ndx   \ #keys in keyboard buffer
-
   037B >label blnsw  \ C64: $cc
 \   037C >label blnct  \ C64: $cd
 \   037D >label gdbln  \ C64: $ce
@@ -102,8 +94,6 @@ Label restore   pha txa pha tya pha cld
 Label first-init
  sei cld
  RomBank lda  $f8 # and  RomBank sta \ map in KERNAL ROM
-\ TODO(issues/33): Remove this line accessing RomBank38.
- RomBank38 lda  $f8 # and  RomBank38 sta \ map in KERNAL ROM for R38
  IOINIT jsr  CINT jsr  RESTOR jsr  \ init. and set I/O-Vectors
  ink-pot    lda BrdCol sta \ border
  ink-pot 1+ lda BkgCol sta \ backgrnd

From 992fcfe751ceeab4741ecd0f695ecb00d8f393bb Mon Sep 17 00:00:00 2001
From: Philip Zembrod <pzembrod@gmail.com>
Date: Sun, 7 Aug 2022 22:43:31 +0200
Subject: [PATCH 05/10] Introduce the KEEPEMU environment variable into
 run-in-vice.sh that facilitated debugging.

---
 6502/C64/Makefile                   | 18 +++++++++---------
 6502/C64/emulator/build-devenv.sh   |  2 +-
 6502/C64/emulator/build-tcbase.sh   |  2 +-
 6502/C64/emulator/build-testbase.sh |  2 +-
 6502/C64/emulator/build-vf.sh       |  2 +-
 6502/C64/emulator/run-in-vice.sh    | 16 +++++++++++-----
 6 files changed, 24 insertions(+), 18 deletions(-)

diff --git a/6502/C64/Makefile b/6502/C64/Makefile
index c874703..67fb8e2 100644
--- a/6502/C64/Makefile
+++ b/6502/C64/Makefile
@@ -97,44 +97,44 @@ test-v4thblk-c64.log: emulator/v4thblk-c64.T64 disks/empty.d64
 	rm -f cbmfiles/test.log disks/scratch.d64
 	cp disks/empty.d64 disks/scratch.d64
 	DISK9=scratch emulator/run-in-vice.sh v4thblk-c64 \
-	  "include run-blk-tests.fth\n1234567890\n"
+	  "include run-blk-tests.fth\n1234567890"
 	petscii2ascii cbmfiles/test.log $@
 
 test-v4th-c64.log: emulator/v4th-c64.T64
 	rm -f cbmfiles/test.log
 	emulator/run-in-vice.sh v4th-c64 \
-	  "include run-std-tests.fth\n1234567890\n"
+	  "include run-std-tests.fth\n1234567890"
 	petscii2ascii cbmfiles/test.log $@
 
 test-v4thblk-c16+.log: emulator/v4thblk-c16+.T64 disks/empty.d64
 	rm -f cbmfiles/test.log disks/scratch.d64
 	cp disks/empty.d64 disks/scratch.d64
 	VICE=xplus4 DISK9=scratch emulator/run-in-vice.sh v4thblk-c16+ \
-	  "include run-blk-tests.fth\n1234567890\n"
+	  "include run-blk-tests.fth\n1234567890"
 	petscii2ascii cbmfiles/test.log $@
 
 test-v4th-c16+.log: emulator/v4th-c16+.T64
 	rm -f cbmfiles/test.log
 	VICE=xplus4 emulator/run-in-vice.sh v4th-c16+ \
-	  "include run-std-tests.fth\n1234567890\n"
+	  "include run-std-tests.fth\n1234567890"
 	petscii2ascii cbmfiles/test.log $@
 
 test-v4thblk-c16-.log: emulator/v4thblk-c16-.T64
 	rm -f cbmfiles/test.log
 	VICE=xplus4 emulator/run-in-vice.sh v4thblk-c16- \
-	  "include run-min-tests.fth\n1234567890\n"
+	  "include run-min-tests.fth\n1234567890"
 	petscii2ascii cbmfiles/test.log $@
 
 test-v4th-c16-.log: emulator/v4th-c16-.T64
 	rm -f cbmfiles/test.log
 	VICE=xplus4 emulator/run-in-vice.sh v4th-c16- \
-	  "include run-std-tests.fth\n1234567890\n"
+	  "include run-std-tests.fth\n1234567890"
 	petscii2ascii cbmfiles/test.log $@
 
 test-v4th-x16.log: cbmfiles/v4th-x16 emulator/sdcard.img
 	rm -f cbmfiles/test.log
 	emulator/run-in-x16emu.sh v4th-x16 \
-	  "include run-std-tests.fth\n1234567890\n"
+	  "include run-std-tests.fth\n1234567890"
 	mcopy -i emulator/sdcard.img ::TEST.LOG cbmfiles/test.log
 	petscii2ascii cbmfiles/test.log $@
 
@@ -143,7 +143,7 @@ test-v4th-x16-39.log: $(test_files_petscii) emulator/run-in-vice.sh
 test-v4th-x16-39.log: cbmfiles/v4th-x16 emulator/sdcard.img
 	rm -f cbmfiles/test.log
 	emulator/run-in-x16-39.sh v4th-x16 \
-	  "include run-std-tests.fth\n1234567890\n"
+	  "include run-std-tests.fth\n1234567890"
 	mcopy -i emulator/sdcard.img ::TEST.LOG cbmfiles/test.log
 	petscii2ascii cbmfiles/test.log $@
 
@@ -155,7 +155,7 @@ test-v4th-x16-41.log: $(test_files_petscii) emulator/run-in-vice.sh
 test-v4th-x16-41.log: cbmfiles/v4th-x16 emulator/sdcard.img
 	rm -f cbmfiles/test.log
 	emulator/run-in-x16-41.sh v4th-x16 \
-	  "include run-std-tests.fth\n1234567890\n"
+	  "include run-std-tests.fth\n1234567890"
 	mcopy -i emulator/sdcard.img ::TEST.LOG cbmfiles/test.log
 	petscii2ascii cbmfiles/test.log $@
 
diff --git a/6502/C64/emulator/build-devenv.sh b/6502/C64/emulator/build-devenv.sh
index cd034ab..8ef1831 100755
--- a/6502/C64/emulator/build-devenv.sh
+++ b/6502/C64/emulator/build-devenv.sh
@@ -11,7 +11,7 @@ rm -f "${basedir}/cbmfiles/devenv"
 # load include and dos from file-words.d64 block 10 in drive 11.
 # savesystem and then scratch file notdone to exit emulator.
 keybuf="2 drive 19 load\n47 load\n1 drive 26 load\n3 drive 10 load\n\
-savesystem devenv\ndos s0:notdone\n"
+savesystem devenv\ndos s0:notdone"
 
 DISK9=vforth4_1 DISK10=vforth4_3 DISK11=file-words \
   "${emulatordir}/run-in-vice.sh" "c64-volksforth83" "${keybuf}"
diff --git a/6502/C64/emulator/build-tcbase.sh b/6502/C64/emulator/build-tcbase.sh
index 3e65753..3e4814b 100755
--- a/6502/C64/emulator/build-tcbase.sh
+++ b/6502/C64/emulator/build-tcbase.sh
@@ -11,7 +11,7 @@ rm -f "${basedir}/cbmfiles/tcbase"
 
 keybuf="3 drive 20 load\n3 drive 10 load\nsave\n\
 2 drive 4 load\ninclude tc-base.fth\n\
-savesystem tcbase\ndos s0:notdone\n"
+savesystem tcbase\ndos s0:notdone"
 
 DISK10=tc38q DISK11=file-words "${emulatordir}/run-in-vice.sh" \
   "v4th-c64-4tc" "${keybuf}"
diff --git a/6502/C64/emulator/build-testbase.sh b/6502/C64/emulator/build-testbase.sh
index 7e5c59e..002318a 100755
--- a/6502/C64/emulator/build-testbase.sh
+++ b/6502/C64/emulator/build-testbase.sh
@@ -15,7 +15,7 @@ rm -f "${basedir}/cbmfiles/${target}"
 # load include and dos from file-words.d64 block 10.
 # savesystem and then scratch file notdone to exit emulator.
 keybuf="3 drive 20 load\n3 drive 10 load\n\
-savesystem ${target}\ndos s0:notdone\n"
+savesystem ${target}\ndos s0:notdone"
 
 DISK11=file-words "${emulatordir}/run-in-vice.sh" \
   "${source}" "${keybuf}"
diff --git a/6502/C64/emulator/build-vf.sh b/6502/C64/emulator/build-vf.sh
index f7fed6c..3f29a5f 100755
--- a/6502/C64/emulator/build-vf.sh
+++ b/6502/C64/emulator/build-vf.sh
@@ -18,7 +18,7 @@ nosave="${2}"
 test -z "${nosave}" && rm -f "${basedir}/cbmfiles/${target}"
 rm -f "${basedir}/cbmfiles/${logfile}"
 
-keybuf="include ${source}\nsave-target ${target}\ndos s0:notdone\n"
+keybuf="include ${source}\nsave-target ${target}\ndos s0:notdone"
 test -n "${nosave}" && keybuf="include ${source}\n"
 
 DISK10=tc38q "${emulatordir}/run-in-vice.sh" \
diff --git a/6502/C64/emulator/run-in-vice.sh b/6502/C64/emulator/run-in-vice.sh
index 683ce36..77febe7 100755
--- a/6502/C64/emulator/run-in-vice.sh
+++ b/6502/C64/emulator/run-in-vice.sh
@@ -8,20 +8,26 @@ test -n "$DISK11" || DISK11=empty
 emulatordir="$(realpath --relative-to="$PWD" "$(dirname "${BASH_SOURCE[0]}")")"
 basedir="$(realpath --relative-to="$PWD" "${emulatordir}/..")"
 
+executable="${1}"
+keybuf="${2}"
+
 autostart=""
-if [ -n "$1" ]
+if [ -n "${executable}" ]
 then
-  autostart="-autostart ${emulatordir}/${1}.T64"
+  autostart="-autostart ${emulatordir}/${executable}.T64"
 fi
 
-keybuf=""
 warp=""
-if [ -n "$2" ]
+if [ -n "${keybuf}" ]
 then
-  keybuf="${2}"
+  # keybuf="${2}"
   # The following could also just be a cp.
   ascii2petscii "${emulatordir}/notdone" "${basedir}/cbmfiles/notdone"
   warp="-warp"
+  # Magic env variable KEEPEMU: Only if not set, send in the final CR.
+  if [ -z "${KEEPEMU}" ]; then
+    keybuf="${keybuf}\n"
+  fi
 fi
 
 "$VICE" \

From 14f3eaf3ad727973bf4fe8254f0026036b4a313c Mon Sep 17 00:00:00 2001
From: Philip Zembrod <pzembrod@gmail.com>
Date: Mon, 8 Aug 2022 00:37:00 +0200
Subject: [PATCH 06/10] Add comment about C16 OS bug workaround

---
 6502/C64/src/vf-sys-cbm.fth | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/6502/C64/src/vf-sys-cbm.fth b/6502/C64/src/vf-sys-cbm.fth
index 9b900eb..0b21057 100644
--- a/6502/C64/src/vf-sys-cbm.fth
+++ b/6502/C64/src/vf-sys-cbm.fth
@@ -152,6 +152,9 @@ Label nodevice     0 # ldx  1 # ldy
 
 Label (?dev
  IOStatus stx  \ because IOStatus isn't cleared by LISTEN or TALK
+ \ It's unclear in which situation or use case the following
+ \ workaround for a C16 OS error is needed. The v4th tests pass
+ \ even with the following line removed.
  (C16 CurDev sta ( )  \ current device number - because of error in OS
  LISTEN jsr
  60 # lda  SECOND jsr  UNLSN jsr

From b670672a829b316addf2b4290ceabf338757c8b7 Mon Sep 17 00:00:00 2001
From: Philip Zembrod <pzembrod@gmail.com>
Date: Mon, 8 Aug 2022 00:37:44 +0200
Subject: [PATCH 07/10] Update version in logo string from 3.9.3 to 3.9.4

---
 6502/C64/src/vf-head-c16.fth | 4 ++--
 6502/C64/src/vf-head-c64.fth | 2 +-
 6502/C64/src/vf-head-x16.fth | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/6502/C64/src/vf-head-c16.fth b/6502/C64/src/vf-head-c16.fth
index 2a0927b..012ecb2 100644
--- a/6502/C64/src/vf-head-c16.fth
+++ b/6502/C64/src/vf-head-c16.fth
@@ -28,5 +28,5 @@ here dup origin!
 $100 allot
 
 Create logo
- (C16+ ," volksFORTH-83 3.9.3-C16+ " )
- (C16- ," volksFORTH-83 3.9.3-C16- " )
+ (C16+ ," volksFORTH-83 3.9.4-C16+ " )
+ (C16- ," volksFORTH-83 3.9.4-C16- " )
diff --git a/6502/C64/src/vf-head-c64.fth b/6502/C64/src/vf-head-c64.fth
index 83b23d9..7e4d7f0 100644
--- a/6502/C64/src/vf-head-c64.fth
+++ b/6502/C64/src/vf-head-c64.fth
@@ -28,4 +28,4 @@ here dup origin!
 $100 allot
 
 Create logo
-  ," volksFORTH-83 3.9.3-C64  "
+  ," volksFORTH-83 3.9.4-C64  "
diff --git a/6502/C64/src/vf-head-x16.fth b/6502/C64/src/vf-head-x16.fth
index 4d411d6..4671b87 100644
--- a/6502/C64/src/vf-head-x16.fth
+++ b/6502/C64/src/vf-head-x16.fth
@@ -27,4 +27,4 @@ here dup origin!
 $100 allot
 
 Create logo
-  ," volksFORTH-83 3.9.3-X16  "
+  ," volksFORTH-83 3.9.4-X16  "

From 2ff06c912acbeaed70c292e55d2a6af604c2d92c Mon Sep 17 00:00:00 2001
From: Philip Zembrod <pzembrod@gmail.com>
Date: Wed, 17 Aug 2022 23:04:25 +0200
Subject: [PATCH 08/10] Add initial VERSIONS.ORG file with C64/C16/X16 versions

---
 VERSIONS.ORG | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 VERSIONS.ORG

diff --git a/VERSIONS.ORG b/VERSIONS.ORG
new file mode 100644
index 0000000..8e59731
--- /dev/null
+++ b/VERSIONS.ORG
@@ -0,0 +1,37 @@
+#+Title: VolksForth versions
+
+* C64/C16/Plus4/CommanderX16
+
+*3.9.4*
+
+ * X16 version adapted to Kernal/Emulator version R41
+ * Some reduction in use of and dependence on Kernal variables in RAM
+
+*3.9.3*
+
+ * X16 version adapted to work with both versions R38 and R39 of
+ Kernal and Emulator, and thus with prototype boards #1 and #2
+ * Some code cleanup around moving word headers to the heap
+ and related tmpheap cleanup
+ * load, thru, +load, +thru were removed from the v4th versions
+ like the x16 version that don't have block/buffer disk access.
+
+*3.9.2*
+
+ * X16: Zero page area used by v4th moved from $30-$5b to $50-$7b,
+ inclusive, so that it now doesn't collide with the ROM version of X16Edit
+ * Initial prepartion for and implementation of tmpheap
+ * Some minor cleanups and bug fixes.
+
+*3.91*
+
+ * X16: Initial version
+
+*3.90*
+
+ * Built-in INCLUDE stream file interface
+ * Separate versions with and without BLOCK words
+ * C16-32k version resurrected and fixed
+ * An adapted subset of the ANS test suite is made to pass
+ * Makefile setup for build and test
+ * Build sources moved from BLOCK disk images to stream sources

From c6716dced5a73e09b2bb363d6ad69dbb2b277fdf Mon Sep 17 00:00:00 2001
From: Philip Zembrod <pzembrod@gmail.com>
Date: Sun, 28 Aug 2022 23:06:41 +0200
Subject: [PATCH 09/10] Update all binaries to 3.9.4

---
 6502/C64/cbmfiles/v4th-c16+    | Bin 13979 -> 14029 bytes
 6502/C64/cbmfiles/v4th-c16-    | Bin 13835 -> 13868 bytes
 6502/C64/cbmfiles/v4th-c64     | Bin 13909 -> 13942 bytes
 6502/C64/cbmfiles/v4th-x16     | Bin 13876 -> 13823 bytes
 6502/C64/cbmfiles/v4thblk-c16+ | Bin 16152 -> 16202 bytes
 6502/C64/cbmfiles/v4thblk-c16- | Bin 16008 -> 16042 bytes
 6502/C64/cbmfiles/v4thblk-c64  | Bin 16084 -> 16115 bytes
 7 files changed, 0 insertions(+), 0 deletions(-)

diff --git a/6502/C64/cbmfiles/v4th-c16+ b/6502/C64/cbmfiles/v4th-c16+
index 899c1999c32b4b52342168032e9abe11ac870edf..1bfb30e2077b25e650bbd1556c3c9e17e6b86589 100644
GIT binary patch
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diff --git a/6502/C64/cbmfiles/v4th-c16- b/6502/C64/cbmfiles/v4th-c16-
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z=$zvW>6A0y?C`Sd9xu$f|1Gw|62(P%bCg-lKB(5f^>E!$dNn(PjP6H!M$L5=5;lz&
zNC4;DhIk|<<98h2D;Wvvy<sIDn`fTCAS%DR&PX!pg^N5PdlkSjB(&Q$ACTtAKFy3+
z%IuOY?;sxu0W^6^5-C~CX0oE}oJ>TVaw6)5mG0@%v&$D%8Li2Nze_{*S%t)I3kI5M
zpPX{<^{6~Ol}0P^6MM*Gtcxd-Vk&YT@A4mI+grL@e5RdX+T*TS=JG;<?*wO>T!9Ck
zmug}cHT+J{%yY5Yf(!A6cseVOJD+MKhAyy%H%25$JRePp+1fe)D%;oBb>Z)iHj|Ua
zBLakuF7O(!Bdh^a7p4JTL#P0s#$-RQ%4P(p0$t!RugYPl!SFb*+Ad+N$M`g_N?`Z|
zhTrj2N`TcE{YYxaxS$S`pLptm038@z=CzV2lPZ_WyTDCelM*k=0yJXR9Iv}LRiH;&
byMVe~mq};j3uys9z%okP)tCzKlhS_xW*Lbr

delta 1543
zcmZ8gZA?>F7(TbQy{+O9T1sgfECdPYDHN*RhRC`1w%4+y20#AHB{O6n#BGvn*$+3Z
z=?{iLJ2PBw%%+YYrf!mvxS;#Wh-u+g?ksKXy~U4!nbT~ESqyW_HvQq<IYqN&O`5*X
z`|&*QbI$1(`=a}X*Oji^3cyNGf-Y~l>k0CXqwLM2+gHcdQq`1avV+=brnXETtvF|(
z+9tW`(N$FU<n6{a8tP)~j}0$t?z6EM;M&@|?8VJJrURg}oz9E0lE^EO_A&Li^FHe=
zX?G5n-DM{~fyXrA_;Aqc7y#8smuya^FAET82f!vo<G6VyKQF*>FaUf=+knBt^#BCm
ziwK$>Rs&_}F%5uSNH>$0=EVTqhIUuqDdWu~+l%xa|4CDpJ7v)PPH~_QX)zNDK$4;?
z&uv48){>DCMB}`ak(2-&FY7T4f(vMc)SM-ngWwX<Ckt{mmAZ+XX?2tu1K7eG8u9j+
z#=t0r!9r}cyAHcq((T<Fyob7nfQ$?cXhxiurbQ2PigvDI;<WX3O+P)X`PmS>g@!;q
zLqBc^z&Z4$w}t634S`OEZXjX><qhWW@v|D|q9tBWrt6(ws_{Bww=<@msXzQl@ML=g
z>|u(F74X)WA?)3YDIy@s(1al;W&+S*U8=SS#q=m+!0G99R>tS$u>MH$3y2JS&FG1y
zlv(({<oTjx|Ag}x5&gI*dWF#yo0qq~fw`kVWwgmcsa)e=vDMGj;OX)xFvZxGim;8n
zW0P&&_^6_wp2b}<vx9ZURebMJ(8-dOq)d)Dn6e$Sm4Gf5+3%VDo!QOOGh#lU&Erek
zgB;dUn(bnf_zAfCsz&T)5HWYL5i>+1_P^E1%8-2x=xys_mvL`f+)zm@eh5Ob#g?iK
zNp=;vW0!ngR>Zkq*|EQlV@vNk-&dUxbt1zasZuAh?2!s}A{VP^tq3o$^t5*)8EN3~
z+r_;AP>(<ThX;lt(GLa%;NT3nD|K1CE_ZQb<v+NMQ%&5bFX@6iI6U#EDgcf%&SYg*
z(FZyEqKTVZmbWAe3gA^vpUyVVN*$!GZnm&iK*cV!mYN1QV=A3Z%((Dldbr*I1TY@E
z+PbOgD-N1x@t0<wuRT~ZW$Uwb;KNIr(=pc5OfAIT_H>53*fiHvNsb00A`^f_vIOjJ
zBhznj-+74i_naY{aTP^Qw21xyJnwr#{$6Dgi}2=g#?3ye)52YF=P9R~T|hA(VSCb+
zG&fa}wj_QG0yyh4q!QDLG#?i6rI8)6<6o?#^uSlTY^L}OU5Ru$0JZ)Rdo92%q_fYq
z1`t+cPcre!3cGA87RVo4049H#lu^WdE-xysc`4yiq+|dtaW~2@wyvu+TGQ?a<s<eb
zmGtiL(^Bm8#`>qf@xA81<r}OqT1g8j9r7ESQc_yXB<Aox;rELDZGCM$ri0*HzptUi
z8-OIf^3f)5c+vk#!}PV={)52GbJLB>m1^FQ%I1|>*E1fH2!Tf4n2=?0E}0hdjZFZ6
zt-G2+_(zv3$g>FnLPrQ}=k)}+G4x`%hu0D)z-KY&<u&=705u>44)B@+4z)P!=QaCf
z9Md=+<~0%ypTgk@p2`TY4o7DQhk^<97@Xs&s{(Z3Xo}a#qC!{}Eg^7;*Ji|PiU5tc
jRN(d3t}nxr?IG|J-YJ_?u4V=J2;2CLUxA?jKP&$S<K}5Q

diff --git a/6502/C64/cbmfiles/v4th-c64 b/6502/C64/cbmfiles/v4th-c64
index 04c739712de17351143da4664daf24bd5a89738b..53df8320a0b4222f0088d93f446408d88b9822e2 100644
GIT binary patch
delta 1581
zcmZ8geQZ-z6u+;ueeL?zmUbw^X1vwM(z$jUUFrL1UpEkJm5F3aG@wKxrhx#_fClQS
z`(uH9WlDJsLB$0yML}mIBa*0u^lS36(l&jsV~}77Ls?MF5*GrKQ15Lu690I4zu&p%
zoZmV3oLk&=Z`Yv}hIf4cRDpW>+NwKE=XpzH_0N%w)xvVD4s(tBu&x@cdpxq_TMZT)
zUsHEnhb6~n8jT99D9ks#f$bGuv6J;(+{Lz_?mZB2;f1s$#|!e1>tyK@axX^`F7lAJ
zYy7DFYeg@4zSQZi=?87JD$$b2Ohzf7><8;<9O9N#VJb?U0sUYTt+YY1U<JTWy-nK*
zi&2B=gSvjOgI1*q;#AsCZKF3maZ9_7K-NB5?R(6O>2GQ6#NKki$Fve=YWGvfguSlc
zM!)|g3OPsP&@N_0*-xF(26Y2ql3paX<d7x+1K>KXP86lw#Kb*%>^428{_r+Uep4Eo
zMR1lTzbYNaP6F813_aQ$)SU#!F-YbGqScCeoKtPz-dW3R9R$D88e4lRJtZd7TbL6#
z>1Ja1(jAHe_#wrwnofcl1RELr9|u1*L+@;Ul?mzw!5#*;p#q9>lsWj>X$5&*A8SC-
z4dmHUjM8o;h0>`8SXJjS*AN(B%GDNOGc&y~$6=Ub2z<xjC`CS<^-~t(T%G=6**wW;
zpgEbzN$?si#v8~!PosdFj2elGS)Bc!=DCXI5u`a=(R|3L%D$DVRcuf<3>sNwqPHm3
zKgYsWzbtirUNsDO7F8i%%|o>drXwZ-w3}t!TK1MnGHr!-Hw-qysG`)-!;&$y9m8M`
ziz*bedDKuPCd9Uz|Iqyx)5qeebfJ(dz|p=#Ta1R4Y=}+3MQIK8Egm)3fFUBp4iT&A
zQS<%MxFKvdg5Ay#Tj9H%F$3!OBXEkv#q6XbpOY7?YV{(ZhadU_5ExT&2e9oO`$v@A
zX)bVD9ng#^xxi51Xds4-s5n9Itiyg698QZu&k5_DWc7V^gv^gUU`OinV++E5XFa!;
z!;@|oTCxiqd<k$=Hy=j8Sx%eENse;$XaMEX@2;wphRTY7p9INit+~T#Co;Ks$^rLh
z!KwifQ0)=4Z7%3~)8NsMnhCJQUF)$E68C*mQ0J!*Zi3%Rw%hZ<vYy%tran^#2tk%0
zT7;L|TCjQHU|XO!#I|^v4d`Z8(-pzx9!)OmD64(i*vk8<<=%gjg$xOpbRAJ-HnWc`
zN_)4x>%`K{>^$A=d0aC=G#ilHUASWrP~+81#FH|7sc=51B-rL{BRYB0Yv`?XRo*~H
zJd^QLZ+S<}RsemFYoEyoka)ZKE)z2>F-xZM0eb2Y@PT)+n3dCod?776ro^~I788DI
zr{`ML#b;J5(;73j2UVlyxf1gI(F=#0%oI~_^Hwgi6IQ!<!%O7z8-yD!6aBO|@9p#s
z)M||=47tyGwapV^CY_C6h5>(8?{oG!gSs9-@z2`aE<c5^S7==2?hWwUY{}^jd=Kd5
z*CZP&M}xd(B3F<vIhZzN2!klEjZ0Gcaw3y1G&TUR)7RY)hMT3z7o|(_C}pn+gCBS`
zVy%$6Ar*NgqEU*4WSUnL@=;0w!r&KPQG`$l;T*5nCqaxu{1>kfA=E>t_F>s5MM1RK
z2Xn|Up&F8>eAtyJWr4`%Q%PwVWx1{o1E)`!O;5{FN(+xVeCp||6?)7S1~2;5`CMMU
Tl8aK0U>mRb7C{=NzNq>e6;@q}

delta 1529
zcmZ8geQXnD7=N$pdhJ@;qa84y8Mo#b8*4Xg%kJK`*HI8#m&F(`Q81cjnq?})82&(A
z$r2|Fwk)o>hRgvApp}n^AE}86hG4ti<gm20cO4%QMVucIhFd@)#8BV2m1z9qlIQol
z&-45Jp7(w3?zZB#(UqpB`~cK|2KLI@-&*$b)@b0n=#vYC6+}JZO8ALQwZx`GbkQeT
z;_bxx`ontSWa7tWN<}EbotAE5tMIg)Zh)S%t{(lHAmk<sqO2qf%8>hLX`J5bp$%?&
zR0k7d_77G4@zJjK+CkuAt5a>M%-1mns0TqOOQN_fU6_tBC&3_ihE+EqaNh<%ka?B0
z8?2O;F!tyNK`&dKE=bd2km+W(ES}MAG~n!8tj7PJG+~_4*$q3&4P&etF?9qPoFa^m
zceA^e;FbhSqP&!qlpu3b*Q4JH&a+igTMldP1>droR8h`NP2FbcOzALj6rc&NvlFd7
z`lH}5fxx_ATVq4h%vJaHc2#lVec)GC+tiU3r=>~pG42RS(_Eaadr7sM998|S?YhhE
z1CS&CDF`yx*;iU0<$Cn{z_T3LgvE-=E^g1E6Ds<uG2V!~8|hC=aYh%Wh0+I&d&avC
zx`)7PT-jI=xke2At$m1M2uyG!X2^@#AY-NG>W#<B=>(@m>B&q^M)zf<uHpPViyO{!
z8muX0fB(PaXBEl)Sn}Pn<P29`F0FW;Ma;v1f@+j&=yyOg=<!n5do{y=f!Ks{IgiB7
znD?6vpu?i*Ti}dYHiyy04Fk5^wXPe|@e<mCVXy^agHkq+=c)9BVTa|G{@<RLA(<8n
zg<JtW;SSbHnd)E|rqDvH8CW>6+ENRK3}HBA2(S~DKT8Qy#6p4X&M>Ut?asIf5Bv@o
z5pF%Qy#6NKP4upNedGo_0YfKdL)ud}U}z{b7K#%iH=(e~S-(Ptdb|`4`Le8t7lKTH
zT35nyU*201p#Ffui%xpM_i%*HpSlJ|8uF)p5TecoPm70~Y<J_v_dRIi(Y;;&D+<Ou
zx^zx<l<ngOD0`n>Tk(c{MZrhHO{cB)8;@=(lS`%@XnpS6v>*!Zcm$ivy%c!u1~dBV
zVCS;FrDx0oW<S8=FBXPfZN$9rg)7t_hKs$eCOm$C#iYnHx(ox@>BQZqJ*Qi+kjAUc
zWgTUe1I;Er$UN{qB!9z{LLwUtXSe`-U{%{U+czDl3&45ysu#08EK3<$O}MOxHXsUa
zd$m)^Nky9O7tzaLk7&MMD15ZRXR1t7-aJP#lL<0U_$DkifJ$)XfSCfAwZl^6;-*Cw
z*<3!r|8f*O=UXUc6|s;nh>BxcN;(uN6=Xc#D>Y|VuUw|1GEMhtCM<I$TzkMrO2VwW
zkyZIV_O<x-F4a-E1Rs6n)3r`X88Mr@fcEkBf}PF*XOF%QRPh^{+TB40$IFGzwe9_@
z_!pWcFFE)=@I1eMvbl29%WJ1{1?8NBbKyh;?BI1tSr#v(GGd{*5r9tr=EevBpgLca
z&n07wy*2{Ic@0Ku5Nt>AIIqSq#y|u<=T(J#j8TCINb{;93e_mg@v5CNib)h-;Z+g}
zjVSzyC$ceyLD3xMP!OR8f%`mhF~(R?MEa{`QNb)%jS;ZWug;2>lo+E!M=SiAOP4F~
cpgRKWeoa1?S1#sa%mXxr*I$KTj5${GH%QP?YybcN

diff --git a/6502/C64/cbmfiles/v4th-x16 b/6502/C64/cbmfiles/v4th-x16
index ee12471576b80d246bff84597d4853810f038bd5..9e36648444590131a2a9a6f6d34cf06885328f1c 100644
GIT binary patch
delta 2120
zcmZWqeQXow8Gq05XKZ3)2L{N?uI_;xu${)a51(TbD2)uA#Rv>&*J?^P$zm<-HX5yC
zWVL8WA)%yL_A;$&y)>;ipv_tuq`^u?Y~Q6^F}69MLo%gRyRxrN>mq?B#@cw#dtS9l
z`@{0{`FnoP`#kS^=l0hgJGs`n6h^2K{ga(wKHjh?>`ZKaKe1z3@+(9OK~HWZb~Y34
z$;65`jf8LV-j*>lv2F6BR-1-6lf1RzTZB2e*F(lX<1cl@%s)a~X@e|Ql&q`_)8n-l
zNOO?1(Bw(eXZ&BlKaR$T=w5UfJxv?(EPX|s?>bA9Q%l2JqkQvWl%e(ShzeL|X!1ra
z$~HfP-llc=s$440(IbZ%AoUqkr1jV`GxIn4In^|PKA`vL>u?cjmhSbvL8l#eYJa5#
zI%Xa~H|d7EbCnd;j0TX6X}CKtr>JEhI~fxs31Yq^h!JWf^Nr@TqY33KX@?$-_zzmQ
zn_bCK?^?p0yy$IneUC8$v0N!D3rqe_={IPa>1Sf*BWR4#=1ax9a!hiWuRVT&X)Mc9
zQOV{CVwZ+}c{lkXbCP&>IO=I0L^m1SwRlxhoOREen$y0hzziZAs{>D7j!-UU8ej*}
zdKR}Nh=mB{w7oRVR6Ob*c7<3BQ_j8vw4JtOJ$|o>(2!Mrkev3dZrrb?XO*s>B|q}5
zi;t)&%6wUTmp!c^-)kB}!huEG**>6$Nsw~wa`YM-m6>PJ?^uH%Rmz3z{6qdVte?Hi
zcC(MLee6%!nE5FBm^DjnB`=IvsaCpHapZ6CppGIVr^~hF3RhAT(jG-5X8^fPkY`iW
z8FVy`e4N$|+8q}{5vrT>Se!N^(S!jvaymhlW}%k=_u$GKrfv(iKEUZWe!)yM-7tA9
zPpSz|a9Tj>icr`@GzGXHe+g#{aRx9;MM;TJXG}5kF*L?C099Nvj?gjm7N^fuE3i0M
zxQUD0qJHEeNB+7tF@?n`j(n{)MvNm^)$?51S6@|7Bu?9w_GPRtk7@hY$osnYY}?Wu
zGmi{u$g{Q6y=1Zm5O4&Gx_$eipK!fHXqq#+y99Ao%8MNV7{57?*}W?M9nIkGlbS#6
ziGIipp>+Yne<LE)dG0Y^dmv^WLR$j{H|AGW9u15<r%|Vr>BISbP%Cr5gsc6s4_HTE
zq=(Tr18O%_=oVw_1B_vGB4EG}WwD4iW3i=aR5g#s14gjt3#E#>G9O@v#Nmt!0X?oN
z72p5AqUY*GM{&`qdeKTirv}$+E&%v(MDSX$-POWFv!`m&R~nC_6+EVaw=F_V*+=b`
z<agV3aVLMnUa|MW*&au3HEGi>p3LC&Igak<F+-_X#to@CsE6-zd}97z&O^LG5M{X}
z!|1nhPMg)l_wYGbq<aRIryb2`*wVufTUK&u$L-prwclYwkNbQ0y8gI7W3=LqpGQw8
z|J}YmF7Rf&D&ER`MG>z?sLi$oezR>=1Kz$L&Si+!+k*soq(&aDk;Ao#GJnGJi-~Le
ziI`?W=1&~aoNj^}^FVI`{e#DM5kqYW!ea-c`D$?gr?mv)f+nF<@v4OJFjThFOr4IT
z2Pz4)Bl(u!6@M~lnkkgBf)}>tj?0J=X!LW7zbM>sS>eXyEU(#qVsSA8%Uhc8`!or!
z6Nb{GB1jo)%nUCW_XleycrD1!jt4!Khl9V}fbCd52R{?P5WIiQq199N0sAI6-GyMz
zaz6NMlIz%@UCBvYGS(4^_weU~J}W*#Y{Dc@1&yVmS7rF~)(fEsb*l4o#DmrxAa`3{
z5BT{dr`EH}v-9OueqQ1hf?q70v-qqyOn`k!pqDz0GugZXHy-AQdBNHI*@iuT@3hA2
zC!ubtH(P+m?{;U};X)9DLkH|Ogo}4Mgh0l+!cnoS4m`93GK7}H!z;>VSya5UQr4?T
zxd?SD`1{67>({O^*$VD|HKrYlH5}U=GDyXIp^9Jr_B9@h%j1CSy={B)5^d*R?|d*+
z?L4;HWW#AV{QDu3Z$>JJ#q3o`xVh{p|A0ScK7=MhTip4%2!&-aX=K>=wa~ZS?d<i?
zA!H2Sn{TbV>|x_fNmed<10C4VkG>o>Wh)i&Dtsj5)^!No3h!Fij}X$8tCh>y6y<5|
zNB4#GSi1*Q7Sx?#Eml($56UB9ja*JqJ5WD*BCM%`xD&*KVa-z&kavT8B&?A@d>F*%
z!$dJf9RTSCjG+MF*FkwTOk7V<kAieItgDC$MtQHPAH5yc7R5OwMePNb6xPqp*VPy4
ael!c5N@eAGDMc+o8-ENpfSRIy)%YI_-AoVw

delta 2162
zcmZ8ieQZ<L6+iFA@i+d6-8Qg@8TSz-#ZHQ2zYixb32ifXmDP1&l#Xta(@rjH(|<y`
zLP_gEuoDsz64^uRRvbfXwzN$FrJA;Ctn<f9@d&o}-b+X-v5l2=6`D{cQ4OLB@7`xs
zL;J(>`TU*Vx#!&bDldK5Keg4|)(N18ZstF}8{1yt8>V;sW%{WN@oy5FiMIJpqSsCg
z%unBUPD?yL|H$T)fr!n2)@&h(Tk%`lo+G;ByIqcm$NzC#*zg)W?$wBbBxgi<%zL`>
z3rDx#Ve~qtbRPc~$bTAAL~u78f;YUH9PPa%tahFEo`LuKW@aG@6MZvt`qUaZTX{SN
z$NFZ1oc$1_z3NW{8AX2TO+$2Gu5Tu~@19_4|ND@-Ktxg}A@#+-^r`Z#qCS-#h(dZF
zg8TV1g;bfGbp&bqVJLZPb4y~W==4n<tU)XeL%mOpEei`i-!a8B3=bibLM%Wze4&=J
z-lT24(&k(7h7H5O`)VG{N(ssi!>|X*IWa+PKyui(MTfHTLavk-0#wMi$DXvAAZtw8
z)G+BeV1Clj9}l{>5(Du8cdPRwpBD9#EoH>~UC+0CXT5Lu7JOmD5xC(~<x0gZMmnBz
zZ;#Z_`m$Ik%9-q<&=sUl?Q(3Rr-(m|1zq+i@H9R^;c`I^S3T#**_NP*j=~<g7I|`F
zfa>?@>98RRgEa0bFDwSA2Fpo3ExD9G?20Kc<;*9Dc7r8ejX$LzG-l*K(zB%Fs_D$&
zI|KEOwaPov`9DXC!MD6o_>BUYk-I*NzuD3lSy5o*)v{n`l#~?Y2i7d-2N7jV%pq1T
z2EV}s8|WBl8BM+*l@~Ls&w74D57BkZar!;_5A-#}bp*VOq0m}#qYaXmq^{?fxfqFt
zHv+v(ZMHSLcqu`FY6M<nG)QjEi^~b>T^NbLen!=Vv~?#yfI7~&j13koVZwl;Ol@8)
zETjGoGvB}ex~|8Ft*04v=RIb^bY15%?o$$e%cu}iSAfDM!gQE<{Q;aIA==_{p;(Xu
z)VsQ{VH9pKHHa!M85xDI7<G0@LaStB9gCF|aT?IllWel3y7Wk~vZ~f(OWN#o>7M+K
z<FTHnzx`-W*f1F*9p@{vAxFI8_@IKiU8~)@H~1hMItp4=+tig8mJ2yyFN>z%&8BzN
z|Co&Knj$}cI(R>O6rN=@N<bus+9TPQTEcADa1>r=HBFezl03ss9wU{3qz7^SAgYxf
z(BW!l1}Dc!G|MrFvkLVk)ELG%i7>_>%W5!0St#PgSlev6q?oU;T4c^GmLz3i{)X*V
zHi9#5vT9tlP_%LXU-ZLj(G$4nShc8@t5t%lHLYCOFb*`QLbfeCIn?a0E5Wz*<M0HB
zY2d{QP#5Y>)ES}6CL6xXU9XesLg;MA;fE+GvLtnna*lKbt;#q=ILxt7EaQ%<NinX=
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diff --git a/6502/C64/cbmfiles/v4thblk-c16+ b/6502/C64/cbmfiles/v4thblk-c16+
index 9502879cbc19974f373bb5136341fade51488cee..a8e27c46684897f3123b55e6c01d7710086c3348 100644
GIT binary patch
delta 3188
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delta 3164
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diff --git a/6502/C64/cbmfiles/v4thblk-c16- b/6502/C64/cbmfiles/v4thblk-c16-
index e1eab284751ee8fb8e4615389ee894a23fac2322..1c3fd426e917c24255d3b39d35b879f0a9552cf7 100644
GIT binary patch
delta 3114
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zF+ll3?Ltn6H0V1Q^UzAH`jsR3++>3Nu-b(-IFiGmaO`ZzLqEc0>~thy)<Yl8{2xC=
BxjFy<

delta 3085
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OjP3q;m<`dtQU4DWg_{}x

diff --git a/6502/C64/cbmfiles/v4thblk-c64 b/6502/C64/cbmfiles/v4thblk-c64
index 20a14e7a5044547a23095cfb21149080e0323db1..2a7cb92eeee0857bb0452befeb3fea85f8e4ef41 100644
GIT binary patch
delta 3070
zcmZuzeQZ<L6~E8%x1ar-I1oZj;)Ivr5P#&0JU_=Tad2#h5-~*9wPmV`8t{OSf|^Ms
zBbi%eDIq8s*)x<v7X{XoLYG1mv}s#W7JsC8F}CLqAV^u-z#!|Einb8~gz)ZthJmX6
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zi8R%w5z&fWydKdJ-feLcZaM@un?z3xoa9Za)$mi3OLhpnWfEyo0?CBO^xkjJ@-(xG
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delta 3084
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From 313b87d58da29c8abb6fa7864a76df109ac79471 Mon Sep 17 00:00:00 2001
From: Philip Zembrod <pzembrod@gmail.com>
Date: Sun, 28 Aug 2022 23:12:05 +0200
Subject: [PATCH 10/10] Update x16tmpheap.fth to prototype #2 board's bank
 switching address

---
 6502/C64/src/x16tmpheap.fth | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/6502/C64/src/x16tmpheap.fth b/6502/C64/src/x16tmpheap.fth
index ac650f7..07b9a90 100644
--- a/6502/C64/src/x16tmpheap.fth
+++ b/6502/C64/src/x16tmpheap.fth
@@ -13,11 +13,10 @@ User tmpheap[
 User tmpheap>
 User ]tmpheap
 
-\ $9f61 is the X16 RAM bank select register. This will change to $0001
-\ in the next X16 board version.
+\ $0000 is the X16 RAM bank select register.
 \ 1 is the RAM bank selected for the tmpheap. RAM bank 0 is used by the
 \ X16 KERNAL. The banked RAM lives from $a000 to $bfff.
- 1 $9f61 c!  $a000 tmpheap[ !  $c000 dup ]tmpheap ! tmpheap> !
+ 1 $0000 c!  $a000 tmpheap[ !  $c000 dup ]tmpheap ! tmpheap> !
 
 : tmp-hallot  ( size -- addr )
     tmpheap> @ swap -