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fix a bunch of navigation bugs

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~d6 2022-02-14 16:47:36 -05:00
parent 46f0f162eb
commit ad2f91f329
1 changed files with 57 additions and 52 deletions
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@ -195,48 +195,45 @@
( FIXME: handle long lines ) ( FIXME: handle long lines )
@forward @forward
;cursor/col LDA pen-col GTH ,&skip JCN ;cur-pos JSR2 ;last-pos JSR2 GTH2 ,&skip JCN
;cursor/col LDA #01 ADD ;cursor/col STA ;cur-col JSR2 ;cur-last JSR2 GTH ,&next-line JCN
;draw-statusbar JSR2 ;cur-col JSR2 INC ;cursor/col STA
;draw-statusbar JSR2 ;draw-cursor JSR2
,&skip JMP
&next-line #00 ;cursor/col STA ( TODO: need to ensure cursor is visible )
;cursor/row LDA INC ;cursor/row STA
;ensure-visible-cursor JSR2
;draw-cursor JSR2 ;draw-cursor JSR2
&skip BRK &skip BRK
( FIXME: handle long lines ) ( FIXME: handle long lines )
@back @back
;cursor/col LDA #01 LTH ,&skip JCN ;cur-col JSR2 #01 LTH ,&skip JCN
;cursor/col LDA #01 SUB ;cursor/col STA ;cur-col JSR2 #01 SUB ;cursor/col STA
;draw-statusbar JSR2 ;draw-statusbar JSR2
;draw-cursor JSR2 ;draw-cursor JSR2
&skip BRK &skip BRK
( TODO: integrate ensure-visible-cursor to move by half-screens )
@up @up
;cur-line-num JSR2 #0000 EQU2 ,&done JCN
;cursor/row LDA #01 LTH ,&screen-up JCN ;cursor/row LDA #01 LTH ,&screen-up JCN
;cursor/row LDA #01 SUB ;cursor/row STA ;cursor/row LDA #01 SUB ;cursor/row STA
;draw-statusbar JSR2 ;draw-statusbar JSR2
;draw-cursor JSR2 BRK ;draw-cursor JSR2 BRK
&screen-up &screen-up
;buffer/offset LDA2 DUP2 ;buffer/data EQU2 ,&done JCN ;cur-line-num JSR2 #0001 SUB2
#0001 SUB2 ;jump-to-line JSR2
&loop DUP2 ;buffer/data EQU2 ,&complete JCN ;draw-all JSR2
#0001 SUB2 LDAk #0a NEQ ,&loop JCN &done BRK
INC2
&complete ;buffer/offset STA2
;buffer/line-offset LDA2k #0001 SUB2 SWP2 STA2
;draw-all JSR2 BRK
&done POP2 BRK
( FIXME: need to handle 'end of buffer' stuff ) ( FIXME: need to handle 'end of buffer' stuff )
@down @down
;cur-abs-row JSR2 ;last-abs-row JSR2 EQU2 ,&done JCN ;cur-abs-row JSR2 ;last-abs-row JSR2 EQU2 ,&done JCN
;cursor/row LDA pen-line GTH ,&screen-down JCN
;cursor/row LDA INC ;cursor/row STA ;cursor/row LDA INC ;cursor/row STA
;ensure-visible-cursor JSR2
;draw-statusbar JSR2 ;draw-statusbar JSR2
;draw-cursor JSR2 BRK ;draw-cursor JSR2 BRK
&screen-down
#00 ;rel-line JSR2 ;line-len JSR2 INC2 ( add 1 for line ending )
;buffer/offset LDA2 ADD2 ;buffer/offset STA2
;buffer/line-offset LDA2k INC2 SWP2 STA2
;draw-all JSR2
&done BRK &done BRK
@quit quit! @quit quit!
@ -244,18 +241,17 @@
@ignore BRK @ignore BRK
@insert ( c^ -> ) @insert ( c^ -> )
;cursor/col LDA pen-col GTH ,&skip JCN ( FIXME )
;cur-pos JSR2 ;shift-right JSR2 ;cur-pos JSR2 ;shift-right JSR2
;cursor/col LDA INC ;cursor/col STA ;cur-col JSR2 INC ;cursor/col STA
;draw-all JSR2 ;draw-all JSR2
&skip BRK BRK
@overwrite ( c^ -> ) ( @overwrite ( c^ -> )
;cursor/col LDA pen-col GTH ,&skip JCN ( FIXME ) ;cursor/col LDA pen-col GTH ,&skip JCN ( FIXME )
;cur-pos JSR2 STA ;cur-pos JSR2 STA
;cursor/col LDA #01 ADD ;cursor/col STA ;cursor/col LDA #01 ADD ;cursor/col STA
;draw-all JSR2 ;draw-all JSR2
&skip BRK &skip BRK )
( TODO: handle last line ) ( TODO: handle last line )
@newline ( c^ -> ) @newline ( c^ -> )
@ -276,8 +272,7 @@
@backspace ( -> ) @backspace ( -> )
;at-buffer-start JSR2 ,&skip JCN ;at-buffer-start JSR2 ,&skip JCN
;at-line-start JSR2 ,&prev-line JCN ;at-line-start JSR2 ,&prev-line JCN
;get-col JSR2 #01 SUB ;cursor/col STA ;cur-col JSR2 #01 SUB ;cursor/col STA
( ;cursor/col LDA #01 SUB ;cursor/col STA )
,&finish JMP ,&finish JMP
&prev-line ( TODO: what if row=0 but offset>0 ? ) &prev-line ( TODO: what if row=0 but offset>0 ? )
;cursor/row LDA #01 SUB ;cursor/row STA ;cursor/row LDA #01 SUB ;cursor/row STA
@ -323,7 +318,7 @@
BRK BRK
@goto-line ( -> ) @goto-line ( -> )
#0060 ;jump-to-line JSR2 #0016 ;jump-to-line JSR2
;draw-all JSR2 BRK ;draw-all JSR2 BRK
@jump-to-line ( n* -> ) @jump-to-line ( n* -> )
@ -335,17 +330,23 @@
,&late JCN ( n n-rows/2 lines-rows ) ,&late JCN ( n n-rows/2 lines-rows )
POP2 ,&finish JMP POP2 ,&finish JMP
&early ( n rows/2 ) &early ( n rows/2 )
POP2 ,&finish JCN POP2 #0000 ,&finish JMP ( n 0000 )
&late ( n n-rows/2 lines-rows ) &late ( n n-rows/2 lines-rows )
NIP2 ,&finish JCN NIP2
&finish ( n o ) &finish ( n o )
SUB2k STH2 DUP2 SUB2k STH2 DUP2 ( n o o [n-o] )
;buffer/line-offset STA2 ;buffer/line-offset STA2 ( n o [n-o] )
;abs-line JSR2 ;buffer/offset STA2 ;abs-line JSR2 ;buffer/offset STA2 ( n [n-o] )
#00 ;cursor/col STA #00 ;cursor/col STA ( n [n-o] )
POP2 STH2r NIP ;cursor/row STA POP2 STH2r NIP ;cursor/row STA ( )
JMP2r JMP2r
@ensure-visible-cursor
;cursor/row LDA height LTH ,&noop JCN
;cur-line-num JSR2 ;jump-to-line JSR2
;draw-all JSR2
&noop JMP2r
@refresh @refresh
;draw-all JSR2 BRK ;draw-all JSR2 BRK
@ -404,7 +405,7 @@
ansi LIT '2 emit LIT 'J emit JMP2r ansi LIT '2 emit LIT 'J emit JMP2r
@draw-cursor @draw-cursor
;get-col JSR2 ;get-row JSR2 ;cur-col JSR2 ;cur-row JSR2
;term-move-cursor JSR2 JMP2r ;term-move-cursor JSR2 JMP2r
@draw-statusbar @draw-statusbar
@ -428,7 +429,7 @@
;messages/lines ;print JSR2 ;messages/lines ;print JSR2
#20 emit #20 emit
LIT '( emit LIT '( emit
;cursor/col LDA INC ;emit-dec JSR2 ;cur-col JSR2 INC ;emit-dec JSR2
LIT ', emit LIT ', emit
;cur-abs-row JSR2 INC2 ;emit-dec2 JSR2 ;cur-abs-row JSR2 INC2 ;emit-dec2 JSR2
LIT ') emit LIT ') emit
@ -482,6 +483,9 @@
@cur-len ( -> n* ) @cur-len ( -> n* )
;cur-line JSR2 ;line-len JSR2 JMP2r ;cur-line JSR2 ;line-len JSR2 JMP2r
@cur-last ( -> n* )
;cur-line JSR2 ;line-len JSR2 #0001 SUB2 NIP JMP2r
@line-len ( s* -> n* ) @line-len ( s* -> n* )
#0000 STH2 #0000 STH2
&loop LDAk #00 EQU ,&end JCN &loop LDAk #00 EQU ,&end JCN
@ -520,8 +524,11 @@
@cur-line ( -> s* ) @cur-line ( -> s* )
;cursor/row LDA ;rel-line JSR2 JMP2r ;cursor/row LDA ;rel-line JSR2 JMP2r
@cur-line-num ( -> n* )
#00 ;cursor/row LDA ;buffer/line-offset LDA2 ADD2 JMP2r
@cur-pos ( -> s* ) @cur-pos ( -> s* )
;cur-line JSR2 #00 ;get-col JSR2 ADD2 JMP2r ;cur-line JSR2 #00 ;cur-col JSR2 ADD2 JMP2r
@cur-abs-row ( -> n* ) @cur-abs-row ( -> n* )
;buffer/line-offset LDA2 #00 ;cursor/row LDA ADD2 JMP2r ;buffer/line-offset LDA2 #00 ;cursor/row LDA ADD2 JMP2r
@ -531,8 +538,7 @@
@shift-right ( c^ addr* -> ) @shift-right ( c^ addr* -> )
ROT STH ( addr [prev^] ) ROT STH ( addr [prev^] )
;buffer/limit LDA2 ( addr limit [prev^] ) ;last-pos JSR2 SWP2 ( last addr [prev^] )
#0001 SUB2 SWP2 ( last addr [prev^] )
&loop LTH2k ,&done JCN ( last addr [prev^] ) &loop LTH2k ,&done JCN ( last addr [prev^] )
LDAk STH SWPr ( last addr [prev^ curr^] ) LDAk STH SWPr ( last addr [prev^ curr^] )
DUP2 STHr ( last addr addr prev^ [curr^] ) DUP2 STHr ( last addr addr prev^ [curr^] )
@ -546,8 +552,7 @@
( TODO: change last/addr order and GTH -> LTH to remove hack ) ( TODO: change last/addr order and GTH -> LTH to remove hack )
@shift-left ( addr* -> ) @shift-left ( addr* -> )
;buffer/limit LDA2 ( addr limit ) ;last-pos JSR2 SWP2 ( last addr )
#0001 SUB2 SWP2 ( last addr )
&loop GTH2k ,&next JCN ( last addr ) &loop GTH2k ,&next JCN ( last addr )
,&done JMP ( last addr ) ,&done JMP ( last addr )
&next DUP2 INC2 LDAk ( last addr addr+1 c1^ ) &next DUP2 INC2 LDAk ( last addr addr+1 c1^ )
@ -559,13 +564,13 @@
#00 ;buffer/limit LDA2 STA ( ensure null termination ) #00 ;buffer/limit LDA2 STA ( ensure null termination )
JMP2r JMP2r
( TODO: should be using get-col and get-row almost everywhere ) ( TODO: should be using cur-col and cur-row almost everywhere )
( otherwise, bugs! ) ( otherwise, bugs! )
@get-col @cur-col
;cursor/col LDA ;cur-len JSR2 NIP ;min JSR2 JMP2r ;cursor/col LDA ;cur-len JSR2 NIP ;min JSR2 JMP2r
@get-row @cur-row
;cursor/row LDA JMP2r ;cursor/row LDA JMP2r
@last-pos @last-pos
@ -577,17 +582,17 @@
@fits-in-one-screen ( -> bool^ ) @fits-in-one-screen ( -> bool^ )
;buffer/line-count LDA2 ;term/rows LDA2 INC2 LTH2 JMP2r ;buffer/line-count LDA2 ;term/rows LDA2 INC2 LTH2 JMP2r
@doc-start ( -> s* ) ;buffer/data JMP2r ( @doc-start ( -> s* ) ;buffer/data JMP2r
@doc-limit ( -> s* ) ;buffer/limit LDA2 JMP2r @doc-limit ( -> s* ) ;buffer/limit LDA2 JMP2r
@doc-last ( -> s* ) ;buffer/limit LDA2 #0001 SUB2 JMP2r @doc-last ( -> s* ) ;buffer/limit LDA2 #0001 SUB2 JMP2r )
@page-start ( -> s* ) ;buffer/offset LDA2 JMP2r ( @page-start ( -> s* ) ;buffer/offset LDA2 JMP2r
@page-limit ( -> s* ) height ;rel-line JSR2 JMP2r @page-limit ( -> s* ) height ;rel-line JSR2 JMP2r
@page-last ( -> s* ) height ;rel-line JSR2 #0001 SUB2 JMP2r @page-last ( -> s* ) height ;rel-line JSR2 #0001 SUB2 JMP2r )
@line-start ( -> s* ) ;cursor/row LDA ;rel-line JSR2 JMP2r ( @line-start ( -> s* ) ;cursor/row LDA ;rel-line JSR2 JMP2r
@line-limit ( -> s* ) ;cursor/row LDA INC ;rel-line JSR2 JMP2r @line-limit ( -> s* ) ;cursor/row LDA INC ;rel-line JSR2 JMP2r
@line-last ( -> s* ) ;cursor/row LDA INC ;rel-line JSR2 #0001 SUB2 JMP2r @line-last ( -> s* ) ;cursor/row LDA INC ;rel-line JSR2 #0001 SUB2 JMP2r )
@mod-div ( x^ y^ -> x%d x/y ) @mod-div ( x^ y^ -> x%d x/y )
DIVk STHk MUL SUB STHr JMP2r DIVk STHk MUL SUB STHr JMP2r