diff --git a/README.md b/README.md
index 437141e..a8b28b0 100644
--- a/README.md
+++ b/README.md
@@ -44,27 +44,27 @@ TODO
 When you want to see whats happening do a debug run;
 
 	normal run;
-		time make assert-all
+		time make bin/@assert-all
 		real    0m3.223s
 	
 	debug run at 11 Mhz;
-		time MB_OPENMSX_HEADLESS=off MB_OPENMSX_THROTTLE=on make assert-all
+		time MB_OPENMSX_HEADLESS=off MB_OPENMSX_THROTTLE=on make vassert-all
 		real    1m4.856s
 	
 	debug run real msx speed;
-		time MB_OPENMSX_HEADLESS=off MB_OPENMSX_THROTTLE=on MB_OPENMSX_SPEED=100 make assert-all
+		time MB_OPENMSX_HEADLESS=off MB_OPENMSX_THROTTLE=on MB_OPENMSX_SPEED=100 make bin/@assert-all
 		real    2m37.379s
 	
 	debug run with screenshot on exit; (black screens without throttle)
-		time MB_OPENMSX_HEADLESS=off MB_OPENMSX_THROTTLE=on MB_FLIGHT_SCREEN=on make -s assert-all
+		time MB_OPENMSX_HEADLESS=off MB_OPENMSX_THROTTLE=on MB_FLIGHT_SCREEN=on make -s bin/@assert-all
 		real    1m14.043s
 	
 	debug run with video recorder and merge to one video file;
-		time MB_OPENMSX_HEADLESS=off MB_FLIGHT_VIDEO=on make -s assert-all
+		time MB_OPENMSX_HEADLESS=off MB_FLIGHT_VIDEO=on make -s bin/@assert-all
 		real    0m7.136s
 	
 	build parallel;
-		time make -s -j4 assert-all
+		time make -s -j4 bin/@assert-all
 		real    0m1.817s
 	
 	manual test msxhub on machine;
@@ -86,6 +86,7 @@ Current set is WIP.
 ## Errata
 
 * Doesn't work on windows
+* TODO: mbboot80+add arg prefix and move to other repro + msxhub package
 * TODO: Missing C and mixed support
 * TODO: Use TCL for BASIC/ASM/C lcov (Cobertura) code coverage
 
@@ -104,6 +105,7 @@ Current set is WIP.
 * run instance-id or run/process-label to replace hardcoded "untitled1" path
 * Remove msg or add ignore sram-fully or blank setting: SRAM file nms8250.cmos not found, assuming blank SRAM content.
 * Video record append mode + optional multiple previds to glue videos as one
+* Video record remove blue start frame on start of recording
 * (FIXED) Allow for `set renderer none` in TCL or command argument for headless mode
 * SDL-NULL as window less renderer so that screenshot and/or video works headless
 * DocUpdate: Add speed note because it is slow + add example "after quit {export hdd}"
diff --git a/lib/emuctl/mbboot80.com b/lib/emuctl/mbboot80.com
new file mode 100644
index 0000000..2dbd2e1
Binary files /dev/null and b/lib/emuctl/mbboot80.com differ
diff --git a/lib/make/mb_autoexec.mk b/lib/make/mb_autoexec.mk
index 36c8e7d..00e8994 100644
--- a/lib/make/mb_autoexec.mk
+++ b/lib/make/mb_autoexec.mk
@@ -5,6 +5,9 @@ MB_DOC_HELP_VARIABLE += $(call mb_doc_variable,MB_AUTOEXEC_SHOW_VERSION,"Print O
 MB_AUTOEXEC_SHOW_PATH ?= on
 MB_DOC_HELP_VARIABLE += $(call mb_doc_variable,MB_AUTOEXEC_SHOW_PATH,"Print search path on boot.",$(MB_AUTOEXEC_SHOW_PATH))
 
+MB_AUTOEXEC_SHOW_PROLOG ?= on
+MB_DOC_HELP_VARIABLE += $(call mb_doc_variable,MB_AUTOEXEC_SHOW_PROLOG,"Print msxbuild prolog on boot.",$(MB_AUTOEXEC_SHOW_PROLOG))
+
 MB_AUTOEXEC_SHOW_CONFIG ?= on
 MB_DOC_HELP_VARIABLE += $(call mb_doc_variable,MB_AUTOEXEC_SHOW_CONFIG,"Print host config on boot.",$(MB_AUTOEXEC_SHOW_CONFIG))
 
@@ -32,6 +35,9 @@ MB_DOC_HELP_VARIABLE += $(call mb_doc_variable,MB_AUTOEXEC_SAFE_CMD_TIMEOUT,"Saf
 MB_AUTOEXEC_SAFE_CMD_EXITCODE ?= 1
 MB_DOC_HELP_VARIABLE += $(call mb_doc_variable,MB_AUTOEXEC_SAFE_CMD_EXITCODE,"Safe command execution failure exit code.",$(MB_AUTOEXEC_SAFE_CMD_EXITCODE))
 
+MB_AUTOEXEC_STARTUP_PROLOG ?= mb::boot MSXBUILD UID $(USER)
+MB_DOC_HELP_VARIABLE += $(call mb_doc_variable,MB_AUTOEXEC_STARTUP_PROLOG,"Boot prolog user postfix.",$(MB_AUTOEXEC_STARTUP_PROLOG))
+
 define mb_autoexec_append_cmd
 	echo "$(2)\r" >> $(1)/autoexec.bat
 endef
@@ -80,33 +86,36 @@ MB_DOC_HELP_FUNCTION += $(call mb_doc_function,mb_autoexec_append_save_video,"Ap
 
 define mb_autoexec_append_safe_test
 	$(call mb_autoexec_append_cmd,$(1),omsxctl fail_after $(if $(3),$(3),$(MB_AUTOEXEC_SAFE_TEST_TIMEOUT)) seconds failed_test $(if $(4),$(4),$(MB_AUTOEXEC_SAFE_TEST_EXITCODE)))
-	$(call mb_autoexec_append_echo,$(1),Running test: $(2))
+	$(call mb_autoexec_append_echo,$(1),mb::safe test $(2))
 	$(call mb_autoexec_append_cmd,$(1),$(2))
 endef
 MB_DOC_HELP_FUNCTION += $(call mb_doc_function,mb_autoexec_append_safe_test,"Appends running a safe test.","<dir> <cmd> [timeout] [exit-code]")
 
 define mb_autoexec_append_safe_cmd
 	$(call mb_autoexec_append_cmd,$(1),omsxctl fail_after $(if $(3),$(3),$(MB_AUTOEXEC_SAFE_CMD_TIMEOUT)) seconds failed_cmd $(if $(4),$(4),$(MB_AUTOEXEC_SAFE_CMD_EXITCODE)))
-	$(call mb_autoexec_append_echo,$(1),Running command: $(2))
+	$(call mb_autoexec_append_echo,$(1),mb::safe command $(2))
 	$(call mb_autoexec_append_cmd,$(1),$(2))
 endef
 MB_DOC_HELP_FUNCTION += $(call mb_doc_function,mb_autoexec_append_safe_cmd,"Appends running a safe command.","<dir> <cmd> [timeout] [exit-code]")
 
+define _mb_autoexec_write_preboot
+	$(call mb_autoexec_append_cmd,$(1),$(2)mbboot80)
+	$(call mb_autoexec_append_cmd,$(1),$(2)omsxctl boot_exec_color_vdp)
+	$(if $(filter on,$(MB_FLIGHT_VIDEO)),$(call mb_autoexec_append_save_video,$(1)))
+	$(call mb_autoexec_append_cmd,$(1),$(2)omsxctl fail_after $(MB_AUTOEXEC_STARTUP_TIMEOUT) seconds failed_exec $(MB_AUTOEXEC_STARTUP_EXITCODE))
+endef
+
 define mb_autoexec_write_default
 	@echo === Writing autoexec.bat for $@
 	@echo -n "" > $(1)/autoexec.bat
-	$(if $(filter 40,$(2)),$(call mb_autoexec_append_cmd,$(1),mode 40),$(call mb_autoexec_append_cmd,$(1),mode 80))
-	$(call mb_autoexec_append_echo,$(1),==== MSXBUILD ====)
-	$(if $(filter 40,$(2)),$(call mb_autoexec_append_echo,$(1),Boot mode 40),$(call mb_autoexec_append_echo,$(1),Boot mode 80))
-	$(call mb_autoexec_append_cmd,$(1),omsxctl boot_exec_color_vdp)
-	$(if $(filter on,$(MB_FLIGHT_VIDEO)),$(call mb_autoexec_append_save_video,$(1)))
-	$(call mb_autoexec_append_cmd,$(1),omsxctl fail_after $(MB_AUTOEXEC_STARTUP_TIMEOUT) seconds failed_exec $(MB_AUTOEXEC_STARTUP_EXITCODE))
+	$(if $(wildcard $(1)/utils),$(call _mb_autoexec_write_preboot,$(1),utils\),$(call _mb_autoexec_write_preboot,$(1)))
 	$(if $(filter on,$(MB_AUTOEXEC_SHOW_VERSION)),$(call mb_autoexec_append_cmd,$(1),ver))
-	$(if $(wildcard $(1)/utils),$(call mb_autoexec_append_cmd,$(1),PATH + A:\; A:\UTILS))
+	$(if $(wildcard $(1)/utils),$(call mb_autoexec_append_cmd,$(1),PATH + A:\UTILS))
 	$(if $(filter on,$(MB_AUTOEXEC_SHOW_PATH)),$(call mb_autoexec_append_cmd,$(1),PATH))
+	$(if $(filter on,$(MB_AUTOEXEC_SHOW_PROLOG)),$(call mb_autoexec_append_echo,$(1),$(MB_AUTOEXEC_STARTUP_PROLOG)))
 	$(if $(filter on,$(MB_AUTOEXEC_SHOW_CONFIG)),$(call mb_autoexec_append_cmd,$(1),omsxctl boot_exec_config_info))
-	$(if $(filter on,$(MB_AUTOEXEC_SHOW_FOLDER)),$(call mb_autoexec_append_echo,$(1),Run folder $(1)))
-	$(if $(filter on,$(MB_AUTOEXEC_SHOW_TARGET)),$(call mb_autoexec_append_echo,$(1),Run target $@))
+	$(if $(filter on,$(MB_AUTOEXEC_SHOW_FOLDER)),$(call mb_autoexec_append_echo,$(1),mb::path $(1)))
+	$(if $(filter on,$(MB_AUTOEXEC_SHOW_TARGET)),$(call mb_autoexec_append_echo,$(1),mb::pipe $@))
 endef
-MB_DOC_HELP_FUNCTION += $(call mb_doc_function,mb_autoexec_write_default,"Write a default autoexec.bat file.","<dir> [text-mode]")
+MB_DOC_HELP_FUNCTION += $(call mb_doc_function,mb_autoexec_write_default,"Write a default autoexec.bat file.","<dir>")
 
diff --git a/lib/make/mb_msxpipe.mk b/lib/make/mb_msxpipe.mk
index 6ab0272..37d47e6 100644
--- a/lib/make/mb_msxpipe.mk
+++ b/lib/make/mb_msxpipe.mk
@@ -20,8 +20,8 @@ define _mb_autoexec_show_gui
 	$(call mb_autoexec_append_stop_fail,$(1))
 	$(call mb_autoexec_append_show_gui,$(1))
 	$(if $(filter mouse,$(4)),$(call mb_autoexec_append_joyporta_mouse,$(1)))
-	$(call mb_autoexec_append_echo,$(1),Type shutdown to stop emulation)
-	$(if $(3),$(call mb_autoexec_append_echo,$(1),Running command: $(3)))
+	$(call mb_autoexec_append_echo,$(1),mb::exit Type shutdown to stop emulation)
+	$(if $(3),$(call mb_autoexec_append_echo,$(1),mb::show command $(3)))
 	$(if $(3),$(call mb_autoexec_append_cmd,$(1),$(3)))
 endef
 
diff --git a/lib/make/mb_openmsx.mk b/lib/make/mb_openmsx.mk
index 5aeaad2..c902180 100644
--- a/lib/make/mb_openmsx.mk
+++ b/lib/make/mb_openmsx.mk
@@ -92,12 +92,13 @@ define _mb_openmsx_dosctl_bat
 	$(if $(wildcard $(1)/z80.bat),,$(call mb_copy,$(PATH_MSXBUILD_REAL)/lib/emuctl/z80.bat,$(1)))
 	$(if $(wildcard $(1)/reboot.bat),,$(call mb_copy,$(PATH_MSXBUILD_REAL)/lib/emuctl/reboot.bat,$(1)))
 	$(if $(wildcard $(1)/shutdown.bat),,$(call mb_copy,$(PATH_MSXBUILD_REAL)/lib/emuctl/shutdown.bat,$(1)))
+	$(if $(wildcard $(1)/mbboot80.com),,$(call mb_copy,$(PATH_MSXBUILD_REAL)/lib/emuctl/mbboot80.com,$(1)))
+	$(if $(wildcard $(1)/omsxctl.com),,$(call mb_msxhub_file,$(1),OMSXCTL/1.0-1/get/OMSXCTL/omsxctl.com))
 endef
 
 define mb_openmsx_dosctl
 	$(call mb_openmsx_setup,$(1),$(if $(2),$(2),$(MB_OPENMSX_MACHINE)))
 	$(if $(wildcard $(1)/utils),$(call _mb_openmsx_dosctl_bat,$(1)/utils),$(call _mb_openmsx_dosctl_bat,$(1)))
-	$(if $(wildcard $(1)/omsxctl.com),,$(call mb_msxhub_file,$(1),OMSXCTL/1.0-1/get/OMSXCTL/omsxctl.com))
 	$(if $(wildcard $(1)/command.com),,$(if $(wildcard $(1)/command2.com),,$(call mb_msxhub_get_$(MB_OPENMSX_BOOT_OS)_boot,$(1))))
 	$(call _mb_openmsx_run,$(1),$(if $(2),$(2),$(MB_OPENMSX_MACHINE)),$(if $(3),$(3),$(MB_OPENMSX_MACHINE_RAM)))
 endef
diff --git a/lib/openmsx/share/scripts/boot_exec.tcl b/lib/openmsx/share/scripts/boot_exec.tcl
index 20eadec..3463c57 100644
--- a/lib/openmsx/share/scripts/boot_exec.tcl
+++ b/lib/openmsx/share/scripts/boot_exec.tcl
@@ -33,13 +33,17 @@ proc boot_exec_color_vdp {{vdp_fg 0} {vdp_bg 0}} {
 	} else {
 		set color_vdp_bg $boot_exec_color_vdp_bg
 	}
-	setcolor 15 $color_vdp_fg
-	setcolor 4 $color_vdp_bg
-	return "Boot color vdp fg $color_vdp_fg bg $color_vdp_bg"
+	if {([vdpreg 8] != 0) || ([vdpreg 16] != 0)} {
+		setcolor 15 $color_vdp_fg
+		setcolor 4 $color_vdp_bg
+		return "mb::boot color vdp fg $color_vdp_fg bg $color_vdp_bg"
+	} else {
+		return "mb::boot color MSX1"
+	}
 }
 
 proc boot_exec_config_info {} {
-	set result "Run machine "
+	set result "mb::host "
 	append result [machine_info config_name]
 	append result " on "
 	append result [openmsx_info version]
diff --git a/lib/openmsx/share/scripts/fail_after.tcl b/lib/openmsx/share/scripts/fail_after.tcl
index 9b4fda6..e8fd7b2 100644
--- a/lib/openmsx/share/scripts/fail_after.tcl
+++ b/lib/openmsx/share/scripts/fail_after.tcl
@@ -41,7 +41,7 @@ proc fail_after { timeout {time_unit "time"} {fail_id "fail_after"} {fail_code 2
 	set msg ""
 	if {$fail_after_prev_timer != 0} {
 		after cancel $fail_after_prev_timer
-		set msg "$fail_after_prev_id: Stopped attempt"
+		set msg "mb::fail canceled $fail_after_prev_id"
 	}
 	set fail_after_prev_id $fail_id
 	if {$time_unit != "time"} {
@@ -52,7 +52,7 @@ proc fail_after { timeout {time_unit "time"} {fail_id "fail_after"} {fail_code 2
 			puts stderr "error: $err_msg"
 			fail_after_exit fail_after_timer_error 1
 		}
-		set msg "$msg\n$fail_id: Failure in $timeout $time_unit sec"
+		set msg "$msg\nmb::fail after $timeout $time_unit $fail_id"
 	} else {
 		set fail_after_prev_timer 0
 	}
diff --git a/lib/openmsx/share/scripts/headless.tcl b/lib/openmsx/share/scripts/headless.tcl
index fee8cda..ba33157 100644
--- a/lib/openmsx/share/scripts/headless.tcl
+++ b/lib/openmsx/share/scripts/headless.tcl
@@ -31,12 +31,12 @@ set headless_renderer_done 0
 
 proc headless_exit {} {
 	after time 1 "exit 0"
-	return "Shutdown openMSX"
+	return "mb::head shutdown openMSX"
 }
 
 proc headless_reset {} {
 	after time 1 "reset"
-	return "Reboot openMSX"
+	return "mb::head reboot openMSX"
 }
 
 proc headless_show_gui {} {
@@ -45,7 +45,7 @@ proc headless_show_gui {} {
 	global headless_renderer_type
 	global headless_renderer_done
 	if {$headless_renderer_done != 0} {
-		return "Requested GUI already showing"
+		return "mb::head GUI already showing"
 	}
 	if {$headless_renderer_type != 0} {
 		after time 1 "set renderer $headless_renderer_type"
@@ -55,7 +55,7 @@ proc headless_show_gui {} {
 		puts stderr "error: Requested show gui but env.RENDERER is missing."
 		exit 1
 	}
-	return "Requested GUI with $headless_renderer_type"
+	return "mb::head GUI renderer $headless_renderer_type"
 }
 
 if {[info exists ::env(RENDERER)] && ([string trim $::env(RENDERER)] != "")} {
diff --git a/lib/openmsx/share/scripts/night_flight.tcl b/lib/openmsx/share/scripts/night_flight.tcl
index 2d895d6..b27d0ee 100644
--- a/lib/openmsx/share/scripts/night_flight.tcl
+++ b/lib/openmsx/share/scripts/night_flight.tcl
@@ -33,7 +33,7 @@ proc night_flight_save_screenshot {{prefix_id 0}} {
 		set file_prefix "$night_flight_prefix$night_flight_seperator"
 	}
 	screenshot -prefix $file_prefix
-	return "Flight screenshot saved"
+	return "mb::save flight screenshot"
 }
 
 proc night_flight_save_video {{prefix_id 0}} {
@@ -47,7 +47,7 @@ proc night_flight_save_video {{prefix_id 0}} {
 	}
 	after quit "record stop"
 	after time 1 "record start $night_flight_record_flag -prefix $file_prefix"
-	return "Flight video started"
+	return "mb::save flight video"
 }
 
 if {[info exists ::env(NF_PREFIX)] && ([string trim $::env(NF_PREFIX)] != "")} {
diff --git a/src/0module/assert-all/0module.mk b/src/0module/assert-all/0module.mk
index 9f9b4d1..638aa8a 100644
--- a/src/0module/assert-all/0module.mk
+++ b/src/0module/assert-all/0module.mk
@@ -6,7 +6,8 @@ bin/dist-qa-dos1/@assert \
 bin/dist-qa-dos2/@assert \
 bin/dist-qa-msx1/@assert \
 bin/dist-qa-msxhub/@assert \
-bin/make-on-msx/@assert
+bin/make-on-msx/@assert \
+bin/mbboot80-test/@assert
 
 $(PATH_BIN)/@assert-all: | $(ASSERT_ALL_DEPS)
 	@echo === All assertions completed
diff --git a/src/mbboot80-test/0module.mk b/src/mbboot80-test/0module.mk
new file mode 100644
index 0000000..ee52b70
--- /dev/null
+++ b/src/mbboot80-test/0module.mk
@@ -0,0 +1,24 @@
+
+MBBOOT80_TEST_MOD  := mbboot80-test
+MBBOOT80_TEST_SRC  := $(PATH_SRC)/$(MBBOOT80_TEST_MOD)
+MBBOOT80_TEST_BIN  := $(PATH_BIN)/$(MBBOOT80_TEST_MOD)
+
+$(MBBOOT80_TEST_BIN): | $(PATH_BIN)/@prepare
+	$(call mb_mkdir,$(MBBOOT80_TEST_BIN))
+
+$(MBBOOT80_TEST_BIN)/mbboot80.com: $(MBBOOT80_BIN)/mbboot80.com | $(MBBOOT80_TEST_BIN)
+	$(call mb_copy,$<,$@)
+
+$(MBBOOT80_TEST_BIN)/@run: | $(MBBOOT80_TEST_BIN)/mbboot80.com
+	$(call mb_autoexec_show_gui80,$(MBBOOT80_TEST_BIN))
+	$(call mb_openmsx_dosctl,$(MBBOOT80_TEST_BIN))
+MB_DOC_HELP_TARGET += $(call mb_doc_target,$(MBBOOT80_TEST_BIN)/@run,"Run binaries from mbboot80.")
+.PHONY: $(MBBOOT80_TEST_BIN)/@run
+
+$(MBBOOT80_TEST_BIN)/@assert: | $(MBBOOT80_TEST_BIN)/mbboot80.com
+	$(call mb_delete,$(MBBOOT80_TEST_BIN)/ahello.out)
+	$(call mb_autoexec_safe_test,$(MBBOOT80_TEST_BIN),mbboot80 > mbboot80.out)
+	$(call mb_openmsx_dosctl,$(MBBOOT80_TEST_BIN))
+	grep "mb::boot mode 80" $(MBBOOT80_TEST_BIN)/mbboot80.out
+MB_DOC_HELP_TARGET += $(call mb_doc_target,$(MBBOOT80_TEST_BIN)/@assert,"Assert binaries from mbboot80.")
+.PHONY: $(MBBOOT80_TEST_BIN)/@assert
\ No newline at end of file
diff --git a/src/mbboot80/0module.mk b/src/mbboot80/0module.mk
new file mode 100644
index 0000000..f703fea
--- /dev/null
+++ b/src/mbboot80/0module.mk
@@ -0,0 +1,28 @@
+
+MBBOOT80_MOD  := mbboot80
+MBBOOT80_SRC  := $(PATH_SRC)/$(MBBOOT80_MOD)
+MBBOOT80_BIN  := $(PATH_BIN)/$(MBBOOT80_MOD)
+
+$(MBBOOT80_BIN): | $(PATH_BIN)/@prepare
+	$(call mb_mkdir,$(MBBOOT80_BIN))
+
+$(MBBOOT80_BIN)/%.rel: $(MBBOOT80_SRC)/%.asm | $(MBBOOT80_BIN)
+	$(call mb_sdcc_compile_asm,$<,$@)
+
+$(MBBOOT80_BIN)/mbboot80.hex: $(MBBOOT80_BIN)/mbboot80.rel
+	$(call mb_sdcc_link_asm_bdos,$<,$@)
+
+$(MBBOOT80_BIN)/mbboot80.com: $(MBBOOT80_BIN)/mbboot80.hex
+	$(call mb_sdcc_hex2bin,$<,$@)
+MB_DOC_HELP_TARGET += $(call mb_doc_target,$(MBBOOT80_BIN)/mbboot80.com,"Compiles mbboot80.")
+
+$(MBBOOT80_BIN)/@run: | $(MBBOOT80_BIN)/mbboot80.com
+	$(call mb_autoexec_show_gui80,$(MBBOOT80_BIN))
+	$(call mb_openmsx_dosctl,$(MBBOOT80_BIN))
+MB_DOC_HELP_TARGET += $(call mb_doc_target,$(MBBOOT80_BIN)/@run,"Run the compiled mbboot80.")
+.PHONY: $(MBBOOT80_BIN)/@run
+
+$(MBBOOT80_BIN)/@release-local: | $(MBBOOT80_TEST_BIN)/@assert
+	$(call mb_copy,$(MBBOOT80_BIN)/mbboot80.com,lib/emuctl//mbboot80.com)
+MB_DOC_HELP_TARGET += $(call mb_doc_target,$(MBBOOT80_BIN)/@release-local,"Updates binary copy in lib/emuctl folder.")
+.PHONY: $(MBBOOT80_BIN)/@release-local
diff --git a/src/mbboot80/mbboot80.asm b/src/mbboot80/mbboot80.asm
new file mode 100644
index 0000000..1654669
--- /dev/null
+++ b/src/mbboot80/mbboot80.asm
@@ -0,0 +1,51 @@
+
+.area	_CODE
+	JP		MAIN
+	.db		0x0D
+	.db		0x0D,0x0A
+	.str	"MSXBUILD Boot mode 80 to support msx1 systems."
+	.db		0x0D,0x0A
+	.db		0x1A
+
+MAIN:
+	LD		HL,#0x002D
+	LD		A,(0xFCC1)
+	CALL	0x0C
+	LD		HL,#TXT_MODE80_MSX1
+	OR		A
+	JP		Z,PUT_TXT
+	
+	LD		A,#80
+	LD		(0xF3AE),A
+	LD		A,#0
+	LD		IY,(0xFCC1)
+	LD		IX,#0x5F
+	CALL	0x1C
+	
+	LD		HL,#TXT_MODE80
+
+PUT_TXT:
+	LD		A,(HL)
+	CP		#0x1D
+	RET		Z
+	LD		E,A
+	LD		C,#2
+	PUSH	HL
+	CALL	0x5
+	POP		HL
+	INC		HL
+	JR		PUT_TXT
+
+;===========  MSX_TYPE TXT'S
+
+TXT_MODE80:
+	.str	"mb::boot mode 80"
+	.db		0x0D,0x0A
+	.db		0x1D
+
+TXT_MODE80_MSX1:
+	.str	"mb::boot mode MSX1"
+	.db		0x0D,0x0A
+	.db		0x1D
+
+.area	_DATA