603 lines
16 KiB
Tal
603 lines
16 KiB
Tal
( TODO: )
|
|
( 1. investigate femto/nano bugs )
|
|
( 2. support attributes (inverse, bold, dim) )
|
|
( 3. add more ansi control seqs )
|
|
( 4. log ESC [ ? x ; ... $c )
|
|
|
|
( ANSI sequences )
|
|
( )
|
|
( set attributes: ESC [ x ; ... m -> 0:reset 1:bright 2:dim 7:reverse )
|
|
( get cursor position: ESC [ 6 n -> ESC [ $row ; $col R )
|
|
( enable line wrap: ESC [ 7 h )
|
|
( disable line wrap: ESC [ 7 l )
|
|
( )
|
|
( move cursor home: ESC [ H )
|
|
( move cursor: ESC [ $row ; $col H )
|
|
( move to column: ESC [ $n G )
|
|
( move to row: ESC [ $n d )
|
|
( move up: ESC [ $n A )
|
|
( move down: ESC [ $n B )
|
|
( move forward: ESC [ $n C )
|
|
( move back: ESC [ $n D )
|
|
( )
|
|
( erase from cursor to end of line: ESC [ K )
|
|
( erase from start of line to cursor: ESC [ 1 K )
|
|
( erase line: ESC [ 2 K )
|
|
( erase from current line to bottom: ESC [ J )
|
|
( erase from current line to top: ESC [ 1 J )
|
|
( erase screen: ESC [ 2 J )
|
|
( )
|
|
( NOT SUPPORTED YET: )
|
|
( show cursor: ESC [ ? 25 h )
|
|
( hide cursor: ESC [ ? 25 l )
|
|
( insert lines: ESC [ $n L )
|
|
( )
|
|
( set bracketed paste mode (xterm): ESC [ ? 2004 h )
|
|
|
|
|00 @System [ &vect $2 &pad $6 &r $2 &g $2 &b $2 ]
|
|
|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 )
|
|
@attr $1 ( 5 bits: RxxxBBFF )
|
|
@dirty? $1 ( screen needs redraw? )
|
|
@lastkey $1 ( last button press )
|
|
@rows $2 ( height in characters )
|
|
@cols $2 ( width in characters )
|
|
@cur-x $2 ( cursor x: 0 <= cur-x < cols )
|
|
@cur-y $2 ( cursor y: 0 <= cur-y < rows )
|
|
@max-x $2 ( cols-1 )
|
|
@max-y $2 ( rows-1 )
|
|
|
|
|0100
|
|
( 80 cols x 24 rows )
|
|
#0028 .rows STZ2
|
|
#0050 .cols STZ2
|
|
|
|
( set max row/col )
|
|
.rows LDZ2 #0001 SUB2 .max-y STZ2
|
|
.cols LDZ2 #0001 SUB2 .max-x STZ2
|
|
|
|
( set initial cursor )
|
|
#0000 .cur-x STZ2
|
|
#0000 .cur-y STZ2
|
|
|
|
( confirm no buttons pressed yet )
|
|
#00 .lastkey STZ
|
|
|
|
( set screen height/width based on rows/cols )
|
|
.rows LDZ2 #30 SFT2 .Screen/h DEO2
|
|
.cols LDZ2 #30 SFT2 .Screen/w DEO2
|
|
|
|
( set colors )
|
|
#07bf .System/r DEO2
|
|
#07bf .System/g DEO2
|
|
#07bf .System/b DEO2
|
|
;load-theme JSR2
|
|
|
|
( set starting tint: reverse=0, bg=0, fg=2 )
|
|
#02 .attr STZ
|
|
;update-tint JSR2
|
|
|
|
( clear screen for initial draw )
|
|
;clear-screen JSR2
|
|
|
|
( set up interrupts )
|
|
;redraw .Screen/vect DEO2 ( set up screen )
|
|
;on-key .Controller/vect DEO2 ( set up keyboard )
|
|
;on-read .Console/vect DEO2 ( set up stdin )
|
|
|
|
( ( set up debug log )
|
|
;debug .File/name DEO2
|
|
#01 .File/append DEO )
|
|
|
|
BRK
|
|
|
|
@load-theme ( -> )
|
|
;&path .File/name DEO2
|
|
#0002 .File/len DEO2
|
|
;&r .File/r DEO2
|
|
;&g .File/r DEO2
|
|
;&b .File/r DEO2
|
|
.File/ok DEI2 ORA #01 JCN JMP2r
|
|
LIT2 &r $2 .System/r DEO2
|
|
LIT2 &g $2 .System/g DEO2
|
|
LIT2 &b $2 .System/b DEO2
|
|
JMP2r [ &path ".theme $1 ]
|
|
|
|
@first-addr ( -> )
|
|
;cells JMP2r
|
|
|
|
@bol-addr ( -> addr* )
|
|
.cols LDZ2 .cur-y LDZ2 MUL2 #0002 MUL2 ;cells ADD2 JMP2r
|
|
|
|
@cur-addr ( -> addr* )
|
|
.cols LDZ2 .cur-y LDZ2 MUL2 .cur-x LDZ2 ADD2 #0002 MUL2 ;cells ADD2 JMP2r
|
|
|
|
@eol-addr ( -> addr* )
|
|
.cols LDZ2 .cur-y LDZ2 INC2 MUL2 #0002 MUL2 ;cells ADD2 JMP2r
|
|
|
|
@limit-addr ( -> )
|
|
.cols LDZ2 .rows LDZ2 MUL2 #0002 MUL2 ;cells ADD2 JMP2r
|
|
|
|
@min ( x* y* -> min* )
|
|
LTH2k JMP SWP2 POP2 JMP2r
|
|
|
|
@max ( x* y* -> max* )
|
|
LTH2k JMP SWP2 NIP2 JMP2r
|
|
|
|
@clear-screen
|
|
#01 .dirty? STZ
|
|
;cells STH2 ( [addr*] )
|
|
#0000 &yloop ( y* [addr*] y* )
|
|
#0000 &xloop ( y* x* [addr*] )
|
|
#4220 STH2kr STA2 ( y* x* [addr*] )
|
|
INC2r INC2r ( y* x* [addr+2*] )
|
|
INC2 DUP2 .cols LDZ2 ( y* x+1* x+1* cols* [addr+2*] )
|
|
LTH2 ,&xloop JCN ( y* x+1* [addr+2*] )
|
|
POP2 ( y* [addr*] )
|
|
INC2 DUP2 .rows LDZ2 ( y+1* y+1* rows* [addr*] )
|
|
LTH2 ,&yloop JCN ( y+1* [addr*] )
|
|
POP2 POP2r JMP2r ( )
|
|
|
|
@redraw
|
|
.dirty? LDZ #00 EQU ,&done JCN
|
|
;cells STH2 ( [addr*] )
|
|
#0000 DUP2 .Screen/y DEO2
|
|
&yloop
|
|
#0000 DUP2 .Screen/x DEO2
|
|
&xloop
|
|
STH2kr LDA2 ;draw-cell JSR2
|
|
.Screen/x DEI2k #0008 ADD2 ROT DEO2
|
|
INC2 INC2r INC2r
|
|
DUP2 .cols LDZ2 LTH2 ,&xloop JCN
|
|
POP2
|
|
.Screen/y DEI2k #0008 ADD2 ROT DEO2
|
|
INC2
|
|
DUP2 .rows LDZ2 LTH2 ,&yloop JCN
|
|
POP2 POP2r
|
|
|
|
;draw-cursor JSR2
|
|
#00 .dirty? STZ
|
|
&done BRK
|
|
|
|
@clear-cursor
|
|
.cur-x LDZ2 #30 SFT2 .Screen/x DEO2
|
|
.cur-y LDZ2 #30 SFT2 .Screen/y DEO2
|
|
;cur-addr JSR2 LDA2
|
|
;draw-cell JMP2
|
|
|
|
@draw-cursor
|
|
.cur-x LDZ2 #30 SFT2 .Screen/x DEO2
|
|
.cur-y LDZ2 #30 SFT2 .Screen/y DEO2
|
|
;cur-addr JSR2 LDA2
|
|
SWP ;reverse-tint JSR2 SWP
|
|
;draw-cell JMP2
|
|
|
|
@on-button ( -> )
|
|
.lastkey LDZ ( last^ )
|
|
.Controller/button DEI ( last^ button^ )
|
|
STHk EOR ( last-xor-button^ [button^] )
|
|
STHr AND ( last-xor-button&button^ )
|
|
DUP #10 AND #00 EQU ,&no-n JCN LIT "A ,arrow JSR
|
|
&no-n DUP #20 AND #00 EQU ,&no-s JCN LIT "B ,arrow JSR
|
|
&no-s DUP #40 AND #00 EQU ,&no-w JCN LIT "D ,arrow JSR
|
|
&no-w DUP #80 AND #00 EQU ,&no-e JCN LIT "C ,arrow JSR
|
|
&no-e POP .Controller/button DEI .lastkey STZ BRK
|
|
|
|
( send ESC [ $c )
|
|
@arrow ( c^ -> )
|
|
.Console/w STH
|
|
#1b STHkr DEO LIT "[ STHkr DEO STHr DEO
|
|
JMP2r
|
|
|
|
@on-key ( -> )
|
|
.Controller/key DEI ,&ok JCN ,on-button JMP
|
|
&ok ,alt? JSR ,on-alt-key JCN
|
|
,ctrl? JSR ,on-ctrl-key JCN
|
|
.Controller/key DEI .Console/w DEO BRK
|
|
|
|
@ctrl? ( -> is-down? ) .Controller/button DEI #01 AND JMP2r
|
|
@alt? ( -> is-down? ) .Controller/button DEI #02 AND JMP2r
|
|
|
|
( alt-XYZ emits ESC and then emits XYZ )
|
|
@on-alt-key ( -> )
|
|
#1b .Console/w DEO
|
|
,ctrl? JSR ,on-ctrl-key JCN
|
|
.Controller/key DEI .Console/w DEO BRK
|
|
|
|
( ctrl-$n emits: )
|
|
( 0 <= $n < @ -> $n )
|
|
( @ <= $n < ` -> $n #40 SUB )
|
|
( ` <= $n <= #ff -> $n #60 SUB )
|
|
@on-ctrl-key ( -> )
|
|
.Controller/key DEI
|
|
DUP LIT "@ LTH ,&done JCN
|
|
DUP LIT "` LTH ,&c1 JCN
|
|
LIT "` SUB ,&done JMP
|
|
&c1 LIT "@ SUB
|
|
&done .Console/w DEO BRK
|
|
|
|
@on-read-priv
|
|
.Console/r DEI
|
|
DUP LIT "; EQU ;next-arg JCN2
|
|
DUP LIT "0 LTH ;end-arg-priv JCN2
|
|
DUP LIT "9 GTH ;end-arg-priv JCN2
|
|
;add-to-arg JMP2
|
|
|
|
@start-priv
|
|
;on-read-priv .Console/vect DEO2
|
|
BRK
|
|
|
|
@on-read-csi ( -> )
|
|
.Console/r DEI
|
|
DUP LIT "? EQU ;start-priv JCN2
|
|
DUP LIT "; EQU ;next-arg JCN2
|
|
DUP LIT "0 LTH ;end-arg JCN2
|
|
DUP LIT "9 GTH ;end-arg JCN2
|
|
;add-to-arg JMP2
|
|
|
|
@debug-priv ( 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
|
|
LIT "? STH2kr STA INC2r
|
|
#20 STH2kr STA INC2r
|
|
( TODO: numeric args )
|
|
STH2kr STA INC2r
|
|
#0a STH2r STA
|
|
#0009 .File/len DEO2
|
|
;scratch .File/w DEO2
|
|
JMP2r
|
|
|
|
@end-arg-priv ( c^ -> )
|
|
;on-read .Console/vect DEO2
|
|
( DUP ,debug-priv JSR )
|
|
( TODO: handle these )
|
|
POP BRK
|
|
|
|
@debug-csi ( 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-csi JSR )
|
|
DUP LIT "d EQU ;exec-move-row JCN2 ( move cursor to row )
|
|
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-set-attr JCN2 ( set attr )
|
|
DUP LIT "n EQU ;exec-status JCN2 ( get status )
|
|
DUP LIT "A EQU ;exec-up JCN2 ( up )
|
|
DUP LIT "B EQU ;exec-down JCN2 ( down )
|
|
DUP LIT "C EQU ;exec-forward JCN2 ( forward )
|
|
DUP LIT "D EQU ;exec-back JCN2 ( back )
|
|
DUP LIT "G EQU ;exec-move-col JCN2 ( move cursor to col )
|
|
DUP LIT "H EQU ;exec-move JCN2 ( move cursor )
|
|
DUP LIT "J EQU ;exec-erase-screen JCN2 ( erase screen )
|
|
DUP LIT "K EQU ;exec-erase-line JCN2 ( erase line )
|
|
DUP LIT "L EQU ;exec-insert-lines JCN2 ( insert blank lines )
|
|
POP BRK
|
|
|
|
@exec-noop ( c^ -> )
|
|
POP BRK
|
|
|
|
@read-attr ( attr* -> )
|
|
DUP2 #0000 NEQ2 ,&!0 JCN #02 .attr STZ ,&done JMP ( reset )
|
|
&!0 DUP2 #0001 NEQ2 ,&!1 JCN #03 ,&set-fg JMP ( bright )
|
|
&!1 DUP2 #0002 NEQ2 ,&!2 JCN #01 ,&set-fg JMP ( dim )
|
|
&!2 DUP2 #0007 NEQ2 ,&!7 JCN .attr LDZk #80 ORA SWP STZ ,&done JMP ( reverse )
|
|
&!7 ,&ignored JMP
|
|
|
|
&set-fg .attr LDZ #fc AND ORA .attr STZ
|
|
&done ;update-tint JSR2
|
|
&ignored POP2 JMP2r
|
|
|
|
@exec-set-attr ( c^ -> )
|
|
POP
|
|
( BRK ( FIXME: gaining 4 bytes per ls -F ) )
|
|
;args/pos LDA2 ;args
|
|
&loop
|
|
LDA2k ;read-attr JSR2
|
|
INC2 INC2
|
|
LTH2k ,&done JCN ,&loop JMP
|
|
&done
|
|
POP2 POP2 BRK
|
|
|
|
@exec1 ( addr* -> )
|
|
STH2 #0001 ;read-arg-1 JSR2 STH2r JSR2 BRK
|
|
|
|
@exec-status
|
|
POP #0000 ;read-arg-1 JSR2 #0006 NEQ2 ,&done
|
|
#1b .Console/w DEO
|
|
LIT "[ .Console/w DEO
|
|
LIT "4 .Console/w DEO
|
|
LIT "0 .Console/w DEO
|
|
LIT "; .Console/w DEO
|
|
LIT "7 .Console/w DEO
|
|
LIT "9 .Console/w DEO
|
|
LIT "R .Console/w DEO
|
|
&done BRK
|
|
|
|
@exec-up POP ;up-n ;exec1 JMP2
|
|
@exec-down POP ;down-n ;exec1 JMP2
|
|
@exec-forward POP ;forward-n ;exec1 JMP2
|
|
@exec-back POP ;back-n ;exec1 JMP2
|
|
|
|
@exec-erase-line
|
|
POP #0000 ;read-arg-1 JSR2
|
|
DUP2 #0000 EQU2 ,&erase-to-end JCN
|
|
DUP2 #0001 EQU2 ,&erase-from-start JCN
|
|
DUP2 #0002 EQU2 ,&erase-full JCN
|
|
POP2 BRK
|
|
&erase-full
|
|
POP2 ;bol-addr JSR2 ;eol-addr JSR2 ;erase JSR2 BRK
|
|
&erase-to-end
|
|
POP2 ;cur-addr JSR2 ;eol-addr JSR2 ;erase JSR2 BRK
|
|
&erase-from-start
|
|
POP2 ;bol-addr JSR2 ;cur-addr JSR2 ;erase JSR2 BRK
|
|
|
|
@exec-erase-screen
|
|
POP #0000 ;read-arg-1 JSR2
|
|
DUP2 #0000 EQU2 ,&erase-to-end JCN
|
|
DUP2 #0001 EQU2 ,&erase-from-start JCN
|
|
DUP2 #0002 EQU2 ,&erase-full JCN
|
|
POP2 BRK
|
|
&erase-full
|
|
POP2 ;first-addr JSR2 ;limit-addr JSR2 ;erase JSR2 BRK
|
|
&erase-to-end
|
|
POP2 ;bol-addr JSR2 ;limit-addr JSR2 ;erase JSR2 BRK
|
|
&erase-from-start
|
|
POP2 ;first-addr JSR2 ;eol-addr JSR2 ;erase JSR2 BRK
|
|
|
|
( TODO: needs to be smarter -- need to redraw tiles and keep x/y coords )
|
|
@erase ( start* end* -> )
|
|
EQU2k ,&skip JCN ( start* end* )
|
|
OVR2 SWP2 ( start* start* end* )
|
|
SUB2 STH2 #4220 SWP2 ( 4220 start* [count*] )
|
|
&loop ( 4220 addr* [i*] )
|
|
STA2k INC2 INC2 INC2r INC2r ( 4220 addr+2* [i+1*] )
|
|
ORAkr STHr ,&loop JCN ( 4220 addr+2* [i+2*] )
|
|
POP2r POP2 POP2 ( )
|
|
#01 .dirty? STZ ( ; FIXME just redraw affected tiles )
|
|
JMP2r ( )
|
|
&skip POP2 POP2 JMP2r ( )
|
|
|
|
@exec-move-row ( c^ -> )
|
|
POP
|
|
#0001 ;read-arg-1 JSR2 #0001 SUB2 ( row )
|
|
.cur-x LDZ2 ( col )
|
|
;goto JSR2 BRK
|
|
|
|
@exec-move-col ( c^ -> )
|
|
POP
|
|
.cur-y LDZ2 ( row )
|
|
#0001 ;read-arg-2 JSR2 #0001 SUB2 ( col )
|
|
;goto JSR2 BRK
|
|
|
|
@exec-move ( c^ -> )
|
|
POP
|
|
#0001 ;read-arg-1 JSR2 #0001 SUB2 ( row )
|
|
#0001 ;read-arg-2 JSR2 #0001 SUB2 ( col )
|
|
;goto JSR2 BRK
|
|
|
|
@exec-insert-lines ( c^ -> )
|
|
POP
|
|
#0001 ;read-arg-1 JSR2 ( n )
|
|
POP2 ( TODO: shift ;screen from bol forward by n*cols bytes )
|
|
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-csi JCN2
|
|
( .Console/r DEI ,debug-esc JSR )
|
|
;on-read .Console/vect DEO2
|
|
;on-read JMP2
|
|
|
|
@start-csi ( -> )
|
|
;reset-args JSR2
|
|
;on-read-csi .Console/vect DEO2
|
|
BRK
|
|
|
|
@on-read
|
|
.Console/r DEI
|
|
DUP ,&ok JCN POP BRK
|
|
&ok ( #42 .tint STZ )
|
|
;read JMP2
|
|
|
|
@read ( c^ -> )
|
|
DUP #20 LTH ;read-ctrl JCN2
|
|
DUP #7f EQU ;read-del JCN2
|
|
;read-printable JMP2
|
|
|
|
@read-ctrl ( c^ -> )
|
|
DUP #07 EQU ;read-bel JCN2
|
|
DUP #08 EQU ;read-bs JCN2
|
|
DUP #09 EQU ;read-tab JCN2
|
|
DUP #0a EQU ;read-nl JCN2
|
|
DUP #0d EQU ;read-cr JCN2
|
|
DUP #1b EQU ;read-esc JCN2
|
|
|
|
@read-bel ( 07 -> )
|
|
POP BRK ( TODO: flash terminal )
|
|
|
|
@read-bs ( 08 -> )
|
|
POP
|
|
;clear-cursor JSR2
|
|
#0001 ;back-n JSR2
|
|
;draw-cursor JSR2
|
|
JMP2r
|
|
|
|
@read-esc ( 1b -> )
|
|
POP ;on-read-esc .Console/vect DEO2 BRK
|
|
|
|
@read-del ( 7f -> )
|
|
POP BRK
|
|
|
|
( @read-tab POP JMP2r )
|
|
@read-tab
|
|
POP
|
|
.cur-x LDZ2 NIP #07 AND #08 SUB
|
|
&loop
|
|
.tint LDZ #20 DUP ;cur-addr JSR2 STA2
|
|
;draw-cell JSR2
|
|
;forward JSR2
|
|
INC DUP ,&loop JCN
|
|
POP JMP2r
|
|
|
|
@read-cr ( 0d -> )
|
|
POP ;clear-cursor JSR2 #0000 .cur-x STZ2 BRK
|
|
|
|
@at-max-y ( -> true? )
|
|
.cur-y LDZ2 .max-y LDZ2 EQU2 JMP2r
|
|
|
|
@read-nl ( 0a -> )
|
|
POP ;clear-cursor JSR2
|
|
,at-max-y JSR ;scroll JCN2 ;down JSR2 BRK
|
|
|
|
@read-printable ( c -> )
|
|
.tint LDZ SWP DUP2 ;cur-addr JSR2 STA2
|
|
;draw-cell JSR2
|
|
;forward JSR2 BRK
|
|
|
|
@goto ( y* x* -> )
|
|
;clear-cursor JSR2
|
|
.max-x LDZ2 ;min JSR2 .cur-x STZ2
|
|
.max-y LDZ2 ;min JSR2 .cur-y STZ2
|
|
;draw-cursor JMP2
|
|
|
|
@forward-n ( n* -> )
|
|
;clear-cursor JSR2
|
|
.cur-x LDZ2 ADD2 .max-x LDZ2 ;min JSR2 .cur-x STZ2
|
|
;draw-cursor JMP2
|
|
|
|
@forward ( -> )
|
|
#0001 ,forward-n JMP
|
|
|
|
@back-n ( n* -> )
|
|
;clear-cursor JSR2
|
|
.cur-x LDZ2 GTH2k ,&zero JCN
|
|
SWP2 SUB2 ,&done JMP
|
|
&zero POP2 POP2 #0000
|
|
&done .cur-x STZ2 ;draw-cursor JMP2
|
|
|
|
@up-n ( n* -> )
|
|
;clear-cursor JSR2
|
|
.cur-y LDZ2 GTH2k ,&zero JCN
|
|
SWP2 SUB2 ,&done JMP
|
|
&zero POP2 POP2 #0000
|
|
&done .cur-y STZ2 ;draw-cursor JMP2
|
|
|
|
@down-n ( n* -> )
|
|
;clear-cursor JSR2
|
|
.cur-y LDZ2 ADD2 .max-y LDZ2 ;min JSR2 .cur-y STZ2
|
|
;draw-cursor JMP2
|
|
|
|
@down ( -> )
|
|
#0001 ,down-n JMP
|
|
|
|
@scroll
|
|
;limit-addr JSR2 STH2
|
|
;cells .cols LDZ2 #0002 MUL2 ADD2 STH2
|
|
&loop
|
|
STH2kr LDA2 #4220 STH2kr STA2
|
|
STH2kr .cols LDZ2 #0002 MUL2 SUB2 STA2
|
|
INC2r INC2r GTH2kr STHr ,&loop JCN
|
|
POP2r POP2r
|
|
#01 .dirty? STZ
|
|
;draw-cursor JSR2 BRK
|
|
|
|
( 0 <= index < 128 )
|
|
@load-tile ( index^ -> )
|
|
#00 SWP #30 SFT2
|
|
;ascii ADD2 .Screen/addr DEO2
|
|
JMP2r
|
|
|
|
( bits: Rx xx FF BB )
|
|
( - R: reversed [0=normal, 1=reversed] )
|
|
( - F: foreground [0:black, 1:dim, 2:normal, 3:bright] )
|
|
( - B: background [0:black, 1:dim, 2:normal, 3:bright] )
|
|
@update-tint ( -> )
|
|
.attr LDZ
|
|
DUP #80 LTH ,&ok JCN
|
|
#80 EOR DUP #02 SFT SWP #20 SFT #0c AND ORA
|
|
&ok #40 ORA
|
|
.tint STZ JMP2r
|
|
|
|
@reverse-tint ( tint^ -> tint^ )
|
|
#0f AND ( x=tint&0f )
|
|
DUP #02 SFT SWP ( x>>2 x )
|
|
#03 AND #20 SFT ( x>>2 (x&3)<<2 )
|
|
ORA #40 ORA ( res=40|x>>2|(x&3)<<2 )
|
|
JMP2r ( res^ )
|
|
|
|
( cell* = tint^ c^ )
|
|
@draw-cell ( cell* -> )
|
|
SWP STH ( c^ [tint^] )
|
|
DUP #80 LTH ,&draw JCN ( c^ [tint^] )
|
|
#80 SUB ( c-80^ [tint^] )
|
|
&draw ;load-tile JSR2 ( [tint^] )
|
|
STHr .Screen/sprite DEO ( )
|
|
JMP2r ( )
|
|
|
|
@next-arg ( c^ -> )
|
|
POP
|
|
( TODO: check if we already have max args )
|
|
;args/pos LDA2k INC2 INC2 SWP2 STA2 BRK
|
|
|
|
@add-to-arg ( c^ -> )
|
|
LIT "0 SUB LITr 00 STH ( [digit*] )
|
|
;args/pos LDA2 LDA2k ( addr* value* [digit*] )
|
|
#000a MUL2 STH2r ADD2 ( addr* value*10+digit )
|
|
SWP2 STA2 BRK
|
|
|
|
@read-arg-1 ( default* -> n* )
|
|
;args LDA2 ;max JMP2
|
|
@read-arg-2 ( default* -> n* )
|
|
;args INC2 INC2 LDA2 ;max JMP2
|
|
|
|
@reset-args ( -> )
|
|
;args ;args/pos STA2
|
|
#0000 ;args LITr f8
|
|
&loop STA2k INC2 INC2
|
|
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
|
|
|
|
( 128 1-bit 8x8 tiles for ASCII 7-bit characters )
|
|
@ascii
|
|
~chr/ascii.tal
|
|
|
|
( store tint+char for each screen position )
|
|
@cells $1900 ( 80 x 40 x 2 )
|