( Dev/Time )

%+  { ADD } %-   { SUB }  %*  { MUL } %/   { DIV }  
%<  { LTH } %>   { GTH }  %=  { EQU } %!   { NEQ } 
%++ { ADD2 } %-- { SUB2 } %** { MUL2 } %// { DIV2 } 
%<< { LTH2 } %>> { GTH2 } %== { EQU2 } %!! { NEQ2 } 

%4*   { #20 SFT }
%10*  { #40 SFT }
%2**  { #10 SFT2 } %2// { #01 SFT2 }
%4//  { #02 SFT2 }
%10** { #40 SFT2 }
%20** { #50 SFT2 }

%TOS     { #00 SWP }
%RTN     { JMP2r }
%MOD     { DUP2 DIV MUL SUB }
%ABS2    { DUP2 #0f SFT2 EQU #05 JCN #0000 SWP2 -- }
%LTS2    { #8000 ++ SWP2 #8000 ++ GTH2 }
%GTS2    { #8000 ++ SWP2 #8000 ++ LTH2 }

%RADIUS    { #0040 }
%SCALEX  { 2// .center/x LDZ2 ++ RADIUS -- }
%SCALEY  { 2// .center/y LDZ2 ++ RADIUS -- }
%12HOURS { #0c MOD }

( devices )

|00 @System     [ &vector $2 &pad      $6 &r      $2 &g     $2 &b      $2 ]
|10 @Console    [ &vector $2 &read     $1 &pad    $5 &write $1 &error  $1 ]
|20 @Screen     [ &vector $2 &width    $2 &height $2 &auto  $1 &pad    $1 &x      $2 &y      $2 &addr $2 &pixel $1 &sprite $1 ]
|b0 @DateTime   [ &year   $2 &month    $1 &day    $1 &hour  $1 &minute $1 &second $1 &dotw $1 &doty $2 &isdst $1 ]

( variables )

|0000

@current $1
@center
	&x $2 &y $2
@date
	&x $2 &y $2
@time
	&x $2 &y $2
@needles
	&hx $2 &hy $2 &mx $2 &my $2 &sx $2 &sy $2
@line
	&x0 $2 &y0 $2 &x $2 &y $2 &sx $2 &sy $2 &dx $2 &dy $2 &e1 $2 &e2 $2 &color $1

( program )

|0100 ( -> )
	
	( theme ) 
	#0ff8 .System/r DEO2 
	#0f08 .System/g DEO2 
	#0f08 .System/b DEO2

	( resize )
	#00f0 .Screen/width DEO2
	#0120 .Screen/height DEO2

	( vectors ) 
	;on-frame .Screen/vector DEO2

	( center )
	.Screen/width DEI2 2// 
		DUP2 .center/x STZ2
		DUP2 #0048 -- .date/x STZ2
		#0020 -- .time/x STZ2
	.Screen/height DEI2 2// 
		DUP2 .center/y STZ2
		DUP2 #0068 -- .date/y STZ2
		#0060 ++ .time/y STZ2

	( circle )
	#3c00 
	&loop
		( load ) DUP TOS 2** ;table ++ LDA2
		TOS #0010 ** #001c // .center/x LDZ2 ++ #0049 -- .Screen/x DEO2
		TOS #0010 ** #001c // .center/y LDZ2 ++ #0049 -- .Screen/y DEO2
		DUP #0f MOD #00 EQU INC .Screen/pixel DEO
		INC GTHk ,&loop JCN
	POP2

( continue )

@on-frame ( -> )

	( only draw once per second )
	.DateTime/second DEI .current LDZ = ,&skip JCN
		( clear ) #00 ,draw-needles JSR
		( update ) ,update-needles JSR
		( draw ) #01 ,draw-needles JSR
		;draw-display JSR2
		&skip

	.DateTime/second DEI .current STZ

BRK

@draw-needles ( mul -- )

	STH
	.center/x LDZ2 .center/y LDZ2 
		OVR2 OVR2 
		OVR2 OVR2
		.needles/sx LDZ2 .needles/sy LDZ2 #02 STHkr * ;draw-line JSR2
		.needles/mx LDZ2 .needles/my LDZ2 #01 STHkr * ;draw-line JSR2
		.needles/hx LDZ2 .needles/hy LDZ2 #01 STHr * ;draw-line JSR2

RTN

@update-needles ( -- )

	#00 .DateTime/second DEI 2** ;table ++ LDA2
		TOS SCALEY .needles/sy STZ2
		TOS SCALEX .needles/sx STZ2
	#00 .DateTime/minute DEI 2** ;table ++ LDA2
		TOS 20** RADIUS ++ #0024 // SCALEY #0007 ++ .needles/my STZ2
		TOS 20** RADIUS ++ #0024 // SCALEX #0007 ++ .needles/mx STZ2
	#00 .DateTime/hour DEI 12HOURS #20 SFTk NIP ADD 2** ;table ++ LDA2
		TOS 4// DUP2k ++ ++ #0020 ++ SCALEY .needles/hy STZ2
		TOS 4// DUP2k ++ ++ #0020 ++ SCALEX .needles/hx STZ2

RTN

@draw-display ( -- )

	( auto addr ) #04 .Screen/auto DEO

	( dotw )
	.date/x LDZ2 .Screen/x DEO2
	.date/y LDZ2 .Screen/y DEO2
	.DateTime/dotw DEI 4* TOS ;dotw ++ ;draw-dotw JSR2
	( date )
	.Screen/x DEI2 #001c ++ .Screen/x DEO2
	.DateTime/month DEI2 
		SWP INC ,&number JSR
		;font/slash ,&char JSR
		,&number JSR
	( time )
	.time/y LDZ2 .Screen/y DEO2
	.time/x LDZ2 .Screen/x DEO2
	.DateTime/hour DEI2 
		SWP ,&number JSR
		;font/spacer ,&char JSR
		,&number JSR
		;font/spacer ,&char JSR
	.DateTime/second DEI 
		,&number JSR

	( auto none ) #00 .Screen/auto DEO

RTN
	&pady ( -- )
		.Screen/y DEI2 #0008 ++ .Screen/y DEO2 RTN
	&char ( char* -- )
		.Screen/addr DEO2
		#03 .Screen/sprite DEO
		,&pady JSR
		#03 .Screen/sprite DEO
		,&reset JSR
		RTN
	&digit ( number -- )
		10* TOS ;font ++ .Screen/addr DEO2
		#03 .Screen/sprite DEO
		,&pady JSR
		#03 .Screen/sprite DEO
		RTN
	&number ( number -- )
		DUP #0a DIV ,&digit JSR
			,&reset JSR
			#0a MOD ,&digit JSR
	&reset
		.Screen/x DEI2 #0008 ++ .Screen/x DEO2
		.Screen/y DEI2 #0008 -- .Screen/y DEO2
	RTN

@draw-dotw ( str* -- )

	DUP2 #0003 ++ SWP2
	&loop
		LDAk #41 - TOS 10** ;font/letters ++ ;draw-display/char JSR2
		INC2 GTH2k ,&loop JCN
	POP2 POP2

RTN

@draw-line ( x1 y1 x2 y2 color -- )
	
	( load ) .line/color STZ .line/y0 STZ2 .line/x0 STZ2 .line/y STZ2 .line/x STZ2
	.line/x0 LDZ2 .line/x LDZ2 -- ABS2 .line/dx STZ2
	.line/y0 LDZ2 .line/y LDZ2 -- ABS2 #0000 SWP2 -- .line/dy STZ2
	#ffff #00 .line/x LDZ2 .line/x0 LDZ2 LTS2 2** ++ .line/sx STZ2
	#ffff #00 .line/y LDZ2 .line/y0 LDZ2 LTS2 2** ++ .line/sy STZ2
	.line/dx LDZ2 .line/dy LDZ2 ++ .line/e1 STZ2
	&loop
		.line/x LDZ2 .Screen/x DEO2 
		.line/y LDZ2 .Screen/y DEO2 
		.line/color LDZ .Screen/pixel DEO
		[ .line/x LDZ2 .line/x0 LDZ2 == ] 
		[ .line/y LDZ2 .line/y0 LDZ2 == ] AND ,&end JCN
		.line/e1 LDZ2 2** .line/e2 STZ2
		.line/e2 LDZ2 .line/dy LDZ2 LTS2 ,&skipy JCN
			.line/e1 LDZ2 .line/dy LDZ2 ++ .line/e1 STZ2
			.line/x LDZ2 .line/sx LDZ2 ++ .line/x STZ2
		&skipy
		.line/e2 LDZ2 .line/dx LDZ2 GTS2 ,&skipx JCN
			.line/e1 LDZ2 .line/dx LDZ2 ++ .line/e1 STZ2
			.line/y LDZ2 .line/sy LDZ2 ++ .line/y STZ2
		&skipx
		;&loop JMP2
	&end

RTN

@dotw
	"Sun $1 "Mon $1 "Tue $1 "Wed $1 "Thu $1 "Fri $1 "Sat $1

@table ( 60 positions on a circle )
	8000 8d00 9a02 a706 b40b c011 cb18 d520
	df2a e734 ee40 f44b f958 fd65 ff72 ff80
	ff8d fd9a f9a7 f4b4 eec0 e7cb dfd5 d5df
	cbe7 c0ee b4f4 a7f9 9afd 8dff 80ff 72ff
	65fd 58f9 4bf4 40ee 34e7 2adf 20d5 18cb
	11c0 0bb4 06a7 029a 008d 0080 0072 0265
	0658 0b4b 113f 1834 202a 2a20 3418 3f11
	4b0b 5806 6502 7200

@font
	0018 2442 4242 4242 4242 4242 4224 1800
	0008 1828 0808 0808 0808 0808 0808 1c00
	0018 2442 4202 0202 0408 1020 4040 7e00
	0018 2442 0202 0438 0402 0202 0204 7800
	000c 0c14 1414 2424 2444 447e 0404 0e00
	007e 4040 4040 5864 4202 0202 0204 7800
	000c 1020 4040 5864 4242 4242 4224 1800
	007e 4202 0204 0404 0808 0810 1010 1000
	0018 2442 4242 2418 2442 4242 4224 1800
	0018 2442 4242 4242 261a 0202 0408 3000
	&spacer
	0000 0000 0010 1000 0000 0000 1010 0000
	&slash
	0202 0404 0808 1010 2020 4040 8080 0000
	&letters
	0010 1028 2844 4444 8282 fe82 8282 0000
	00f8 4442 4242 4478 4442 4242 44f8 0000
	003c 4282 8280 8080 8080 8282 423c 0000
	00f8 4442 4242 4242 4242 4242 44f8 0000
	00fc 4240 4040 4878 4840 4040 42fc 0000
	80fe 4240 4040 447c 4440 4040 40e0 0000
	003a 4682 8080 8e82 8282 8282 463a 0000
	00ee 4444 4444 447c 4444 4444 44ee 0000
	0038 1010 1010 1010 1010 1010 1038 0000
	000e 0404 0404 0404 0404 4444 2810 0000
	00ee 4448 4850 5060 5050 4848 44ee 0000
	00e0 4040 4040 4040 4040 4040 42fe 0000
	0082 c6c6 c6aa aaaa 9292 9282 8282 0000
	00e2 4262 6262 5252 4a4a 4646 42e2 0000
	0038 4482 8282 8282 8282 8282 4438 0000
	00f8 4442 4242 4244 7840 4040 40f0 0000
	0038 4482 8282 8282 8282 829a 643a 0000
	00f8 4442 4242 4478 4844 4442 42e2 0000
	0010 2844 4440 2010 0804 4444 2810 0000
	00fe 9210 1010 1010 1010 1010 1038 0000
	00ee 4444 4444 4444 4444 4444 4438 0000
	0082 8282 8282 8244 4444 2828 1010 0000
	0082 8292 9292 9292 92ba aa44 4444 0000
	0042 4242 2424 1818 1824 2442 4242 0000
	0082 8282 4444 2828 1010 1010 1038 0000
	007e 4204 0408 0810 1020 2040 427e 0000
	0e08 0808 0808 0808 0808 0808 0808 080e
	0082 8282 4444 fe28 10fe 1010 1010 1000
	7010 1010 1010 1010 1010 1010 1010 1070
	1028 4400 0000 0000 0000 0000 0000 0000
	0000 0000 0000 0000 0000 0000 0000 00fe
	1010 1008 0000 0000 0000 0000 0000 0000
	0000 0000 0030 0808 3848 4848 4834 0000
	0060 2020 202c 3222 2222 2222 322c 0000
	0000 0000 001c 2240 4040 4040 221c 0000
	000c 0404 0434 4c44 4444 4444 4c36 0000
	0000 0000 0018 2424 3c20 2020 2418 0000
	000c 1210 1038 1010 1010 1010 1038 0000
	0000 0000 0034 4a48 4830 4038 4444 4438
	00c0 4040 4058 6444 4444 4444 44ee 0000
	0010 0000 0030 1010 1010 1010 1038 0000
	0008 0000 0018 0808 0808 0808 0808 2810
	0060 2020 2022 2224 2438 2424 2272 0000
	0030 1010 1010 1010 1010 1010 1038 0000
	0000 0000 00a4 da92 9292 9292 9292 0000
	0000 0000 00d8 6444 4444 4444 44ee 0000
	0000 0000 0038 4482 8282 8282 4438 0000
	0000 0000 00d8 6442 4242 4242 6458 40e0
	0000 0000 0034 4c84 8484 8484 4c34 040e
	0000 0000 0068 3420 2020 2020 2070 0000
	0000 0000 0018 2424 1008 0424 2418 0000
	0010 1010 107c 1010 1010 1010 1408 0000
	0000 0000 00cc 4444 4444 4444 4c36 0000
	0000 0000 00ee 4444 4428 2828 1010 0000
	0000 0000 0092 9292 9292 92aa 4444 0000
	0000 0000 00ee 4428 1010 1028 44ee 0000
	0000 0000 00ee 4444 4448 2828 1010 2040
	0000 0000 007c 4408 0810 2020 447c 0000