mk2: code_part1/OSTC_code_asm_part1/aa_wordprocessor.asm annotate

annotate code_part1/OSTC_code_asm_part1/aa_wordprocessor.asm @ 695:5bf4f526f552

... minor cleanups ...

author	JeanDo
date	Wed, 13 Feb 2013 10:36:28 +0100
parents	6e456a6398e0
children	55983c4d6b2d

rev	line source
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	1 ;=============================================================================
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	2 ;
95 d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	3 ; File aa_wordprocessor.asm
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	4 ;
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	5 ; Anti-aliased word processor
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	6 ;
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	7 ; This program is free software: you can redistribute it and/or modify
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	8 ; it under the terms of the GNU General Public License as published by
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	9 ; the Free Software Foundation, either version 3 of the License, or
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	10 ; (at your option) any later version.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	11 ;
95 d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	12 ; This program is distributed in the hope that it will be useful,
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	13 ; but WITHOUT ANY WARRANTY; without even the implied warranty of
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	14 ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	15 ; GNU General Public License for more details.
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	16 ;
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	17 ; You should have received a copy of the GNU General Public License
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	18 ; along with this program. If not, see <http://www.gnu.org/licenses/>.
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	19 ;
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	20 ; Copyright (c) 2010, JD Gascuel.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	21 ;=============================================================================
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	22 ; HISTORY
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	23 ; 2010-11-22 : [jDG] Creation.
95 d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	24 ; 2010-12-01 : [jDG] Adding 3bits antialiased fonts.
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	25 ; 2010-12-30 : [jDG] Revised to put temp into ACCESSRAM0
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	26 ;
95 d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	27 ; BUGS :
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	28 ; * If the three fonts are not in the same half of the PROM memory, TBLPTRU
d79bf9df55d7 aa_wordprocessor too fast ? JeanDo parents: 91 diff changeset	29 ; will be badly set, and font48 or font90 will display giberish...
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	30 ;=============================================================================
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	31 ;
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	32 ; MEMORY FOOTPRINT:
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	33 ;------------------
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	34 ;
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	35 ; wp_wordprocessor : 8KB, including fonts.
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	36 ; aa_wordprocessor : 0.5KB code
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	37 ; + 3.5KB aa_font28 (reduced to 99 chars)
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	38 ; + 1.6KB aa_font48
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	39 ; + 2.2KB aa_font90
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	40 ; = 7.9 KB including fonts...
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	41 ;
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	42 ; Input registers:
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	43 ; letter:26 String to print.
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	44 ; win_font Font size (0=small, 1=medium, 2=large)
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	45 ; win_color1:2 16bits unpacked color
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	46 ; win_top, win_leftx2 Position on screen
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	47 ; win_inverse Inverse video mode.
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	48 ;
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	49 ; Available general purpose registers:
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	50 ; PRODH, PRODL (needed for array indexing)
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	51 ; FSRx 12bits. Usefull as RAM pointers.
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	52 ;=============================================================================
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	53 ; Temporary variables are overlayed in bank 0 ACCESS, used also by C-code
260 bde83cac971f BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register. JeanDo parents: 167 diff changeset	54 ; (p2_deco), MPLAB math and stdlib libraries.
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	55
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	56 CBLOCK 0x000
260 bde83cac971f BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register. JeanDo parents: 167 diff changeset	57 aa_flags ; Various flags for aa_wordprocessor
bde83cac971f BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register. JeanDo parents: 167 diff changeset	58 aa_width:2 ; Width in pixels (0..319)
bde83cac971f BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register. JeanDo parents: 167 diff changeset	59 aa_bitlen ; Count of pixels when decoding bitmaps.
bde83cac971f BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register. JeanDo parents: 167 diff changeset	60 aa_start:2 ; PROM ptr to start of encoded bitmap
bde83cac971f BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register. JeanDo parents: 167 diff changeset	61 aa_end:2 ; and end of it.
bde83cac971f BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register. JeanDo parents: 167 diff changeset	62 aa_temp:2 ; Current color, divided by 2 or 4
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	63 ENDC
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	64
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	65 ; Flags allocation:
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	66 #define aa_antialias aa_flags,0
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	67 #define aa_color_quart aa_flags,1
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	68 #define aa_color_half aa_flags,2
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	69
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	70 ;------------------------------------------------------------------------------
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	71 ; Setup pointers for a char:
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	72 ; Inputs WREG = char to draw, win_font
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	73 ; Output aa_start, aa_end, win_height, aa_flags
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	74 ; Trashed PRODH, PRODL, TBLPTR, TABLAT
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	75 ;
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	76 aa_char_setup:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	77 movwf PRODL,A ; save char into PROD for now.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	78
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	79 movf win_font,W,BANKED ; Get font number (updates Z flag)
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	80 bnz aa_char_1
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	81
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	82 ; SMALL font ---------------------------------------------------------
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	83 ; Font SMALL character folding...
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	84 aa_char_0:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	85 movlw LOW aa_font28_block
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	86 movwf TBLPTRL,A
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	87 movlw HIGH aa_font28_block
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	88 movwf TBLPTRH,A
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	89 bra aa_char_3
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	90
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	91 ; MEDIUM font --------------------------------------------------------
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	92 aa_char_1:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	93 decfsz WREG,A ; This is medium font ???
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	94 bra aa_char_2
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	95
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	96 ; Font MEDIUM block:
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	97 movlw LOW aa_font48_block
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	98 movwf TBLPTRL,A
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	99 movlw HIGH aa_font48_block
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	100 movwf TBLPTRH,A
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	101 bra aa_char_3
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	102
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	103 ; LARGE font ---------------------------------------------------------
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	104 aa_char_2:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	105 ; Font LARGE block:
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	106 movlw LOW aa_font90_block
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	107 movwf TBLPTRL,A
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	108 movlw HIGH aa_font90_block
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	109 movwf TBLPTRH,A
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	110
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	111 ; Execute font block -------------------------------------------------
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	112 aa_char_3:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	113 ; This is safe iff the three fonts are in the same code segment
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	114 ; (and that segment do not span the 64K edge...)
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	115 movlw UPPER aa_font28_block
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	116 movwf TBLPTRU,A
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	117
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	118 ; Proceed to character substitutions
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	119 aa_char_30:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	120 tblrd*+ ; Read FROM char
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	121 movf TABLAT,W ; Get it, and set Z,N
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	122 bz aa_char_32 ; Break at end of translations
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	123
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	124 tblrd*+ ; Read TO char
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	125 cpfseq PRODL,A ; FROM == current char ?
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	126 bra aa_char_30 ; Different: loop
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	127 movff TABLAT, PRODL ; make substitution
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	128 bra aa_char_30 ; Loop.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	129
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	130 ; Make sure char is in the available range
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	131 aa_char_32:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	132 tblrd*+ ; Read first char
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	133 movf TABLAT,W ; get it.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	134 subwf PRODL,F ; (char - first) --> PRODL
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	135
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	136 tblrd*+ ; Read nb chars
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	137 movf TABLAT,W ; nbchars --> WREG
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	138 tblrd*+ ; Read default char
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	139 cpfslt PRODL ; if char > WREG ?
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	140 movff TABLAT,PRODL ; replace PRODL
91 3bcccb697bce Added HW logo and dimmed cursor in small font. JeanDo parents: 83 diff changeset	141
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	142 ; Decode font height and anti-aliasing mode
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	143 clrf aa_flags,ACCESS ; Default to no AA
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	144 tblrd*+ ; Read font height + AA flag
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	145 movf TABLAT,W ; into WREG
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	146 bnn aa_char_34 ; High bit set ?
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	147 bsf aa_antialias,ACCESS ; YES : then the font is AA.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	148 aa_char_34:
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	149 andlw 0x7F ; Keep just font height,
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	150 movwf win_height,BANKED ; then save it (its a register)
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	151
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	152 ; Set PROM pointer to the char index
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	153 movf PRODL,W ; Read back char
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	154 mullw 2 ; PROD = 2*(char - base), TBLPTR=idx
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	155 movf PRODL,W
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	156 addwf TBLPTRL,F ; Add into TBLPTR (low byte)
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	157 movf PRODH,W
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	158 addwfc TBLPTRH,F ; and high byte.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	159
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	160 ; Read start and stop pointers
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	161 tblrd+ ; aa_start = PROM16(tblptr++)
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	162 movff TABLAT,aa_start+0 ; Read low byte
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	163 tblrd*+
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	164 movff TABLAT,aa_start+1 ; and high byte
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	165
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	166 tblrd+ ; aa_end = PROM16(tblptr++)
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	167 movff TABLAT,aa_end+0 ; Read low byte
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	168 tblrd*+
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	169 movff TABLAT,aa_end+1 ; and high byte
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	170
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	171 return
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	172
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	173 ;------------------------------------------------------------------------------
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	174 ; Character width
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	175 ; Inputs aa_start, aa_end, aa_width, win_height, aa_flags
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	176 ; Output width added to aa_width
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	177 ; Trashed aa_bitlen, TBLPTR, TABLAT
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	178 ;
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	179 aa_char_width:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	180 movff aa_start+0, TBLPTRL ; TBLPTR = aa_start
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	181 movff aa_start+1, TBLPTRH
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	182 clrf aa_bitlen,ACCESS ; clear reminders...
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	183
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	184 ; Read bitmap byte, and decode length:
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	185 aa_char_width_1:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	186 ifdef AA_BYTE_SWAP
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	187 btg TBLPTRL,0,A ; Toggle low ptr bit.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	188 tblrd*
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	189 movf TABLAT,W,A ; Store to WREG
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	190 btg TBLPTRL,0,A ; Get is back
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	191 tblrd*+ ; then increment (but trash TABLAT)
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	192 movwf TABLAT,A ; Then restore copy to TABLAT.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	193 else
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	194 tblrd*+ ; Normal read...
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	195 movf TABLAT,W,A ; Store copy to WREG
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	196 endif
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	197 btfss aa_antialias,ACCESS ; Antialiased font ?
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	198 bra aa_char_width_10 ; No: always 7 bits count
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	199
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	200 bn aa_char_width_10 ; Non-white pixels ?
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	201 andlw 0x1F ; Yes : 5 bits count.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	202 aa_char_width_10:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	203 andlw 0x7F ; No: 7 bit count.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	204 incf WREG,A ; WREG = repetition count
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	205 addwf aa_bitlen,F,ACCESS ; Add remaining pixels from last code.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	206
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	207 movf win_height,W,BANKED ; WREG = - height
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	208 negf WREG,A
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	209
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	210 ; This is a hand-made division by successive substraction of height
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	211 aa_char_width_2:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	212 addwf aa_bitlen,F,ACCESS ; Try to substract win_height
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	213 bn aa_char_width_3 ; If neg it was a bad idea...
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	214
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	215 infsnz aa_width+0,F,ACCESS ; Succeded: do a 16bit increment
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	216 incf aa_width+1,F,ACCESS ; on the aa_width counter.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	217 bra aa_char_width_2 ; and loop.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	218
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	219 aa_char_width_3:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	220 negf WREG,A ; WREG = +height
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	221 addwf aa_bitlen,F,ACCESS ; Restore true reminder.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	222
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	223 ; Are we done ?
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	224 movf TBLPTRL,W,A ; Compare TBLPTR to aa_end
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	225 cpfseq aa_end+0,ACCESS
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	226 bra aa_char_width_1 ; Loop if LOW is different
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	227 movf TBLPTRH,W,A
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	228 cpfseq aa_end+1,ACCESS ; Loop to if HIGH is different
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	229 bra aa_char_width_1
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	230
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	231 return
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	232
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	233 ;------------------------------------------------------------------------------
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	234 ; String width
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	235 ; Inputs letter (SHOULD BE NULL TERMINATED)
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	236 ; Output aa_width, win_height
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	237 ; Trashed PROD, TBLPTR, FSR2, aa_bitlen, aa_start, aa_end, aa_flags
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	238 ;
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	239 aa_string_width:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	240 lfsr FSR2, letter ; FSR2 pointer to start of string.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	241
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	242 clrf aa_width+0,ACCESS ; Clear width sum.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	243 clrf aa_width+1,ACCESS ; (16 bit counter)
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	244
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	245 aa_string_width_1:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	246 movf POSTINC2,W,A ; WREG = *FSR2++
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	247 bz aa_string_width99 ; Exit if null byte encountered.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	248
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	249 rcall aa_char_setup ; setup aa_start / aa_end
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	250 rcall aa_char_width ; sum-up width into aa_width
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	251 bra aa_string_width_1 ; and loop.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	252
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	253 aa_string_width99:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	254 return
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	255
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	256 ;------------------------------------------------------------------------------
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	257 ; Decode a compressed char.
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	258 ; Inputs aa_start, aa_end, win_height, win_invert, win_color1, win_color2
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	259 ; Output none
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	260 ; Trashed TBLPTR, TABLAT, PROD, aa_bitlen, aa_flags, aa_colorDir:2
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	261 ;
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	262 aa_decode_char:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	263 movff aa_start+0, TBLPTRL ; TBLPTR = aa_start
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	264 movff aa_start+1, TBLPTRH
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	265
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	266 ; Read bitmap byte, and decode color & length
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	267 aa_decode_1:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	268 ifdef AA_BYTE_SWAP
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	269 btg TBLPTRL,0,A ; Toggle low ptr bit.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	270 tblrd*
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	271 movf TABLAT,W,A ; Store to WREG
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	272 btg TBLPTRL,0,A ; Get is back
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	273 tblrd*+ ; then increment (but trash TABLAT)
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	274 movwf TABLAT,A ; Then restore copy to TABLAT.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	275 else
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	276 tblrd*+ ; Normal read...
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	277 movf TABLAT,W,A ; Store copy to WREG
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	278 endif
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	279 btfss aa_antialias,ACCESS ; Antialiased font ?
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	280 bra aa_decode_10 ; No: always 7 bits count
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	281 bn aa_decode_10 ; Non-white pixels ?
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	282 andlw 0x1F ; Yes : 5 bits count.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	283 aa_decode_10:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	284 andlw 0x7F ; No: 7 bit count.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	285 incf WREG,A
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	286 movwf aa_bitlen,ACCESS ; repetition count --> aa_bitlen
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	287
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	288 ;---- COLOR DECODING -------------------------------------------------
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	289 ;
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	290 ; Code Normal Inverse
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	291 ; 1xx 0% 100% : Managed by aa_decode_13
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	292 ; 011 25% 75%
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	293 ; 010 50% 50%
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	294 ; 001 75% 25%
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	295 ; 000 100% 0% : Managed by aa_decode_13 too.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	296 ;
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	297 movf TABLAT,W,A ; Get back code
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	298 btfss aa_antialias,ACCESS ; Antialiased font ?
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	299 bra aa_decode_13 ; NO: 1bit case
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	300
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	301 ; Asymetry test: 1xx code is another case for 1bit color.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	302 ; This have to be done before inverse video, because
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	303 ; of the asymetric processing !
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	304 bn aa_decode_13 ; decode as not-aa
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	305
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	306 ; Manage 000 special case too:
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	307 andlw 0xE0 ; Select color bits
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	308 bz aa_decode_13 ; That's a 000 !
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	309
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	310 ; Apply reverse video, in a reversed way
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	311 btfss win_invert,0 ; Inverse video mode ?
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	312 sublw 0x80
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	313
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	314 ; Move the two bits to aa_color_half and aa_color_quarter:
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	315 swapf WREG ; --> 0000.0LL0 byte
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	316 iorlw b'001' ; We are in AA mode, don't forget it !
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	317 movwf aa_flags,ACCESS ; save that to aa_color_(half/quad)/AA flags.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	318
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	319 ;---- 2 bit x RGB(16bits) computation --------------------------------
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	320 clrf PRODL ; We will accumulate result here...
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	321 clrf PRODH
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	322
142 8b75ba28d641 Screen-flipping custom function. JeanDo parents: 123 diff changeset	323 ; Take color div 2 into aa_temp. Max red = 15/31
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	324 rrcf win_color1,W,BANKED ; xRRRRxGG
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	325 andlw b'01111011' ; 0RRRR0GG (don't change C)
142 8b75ba28d641 Screen-flipping custom function. JeanDo parents: 123 diff changeset	326 movwf aa_temp+0,ACCESS
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	327 rrcf win_color2,W,BANKED ; GGGxBBBB
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	328 andlw b'11101111' ; GGG0BBBB
142 8b75ba28d641 Screen-flipping custom function. JeanDo parents: 123 diff changeset	329 movwf aa_temp+1,ACCESS
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	330
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	331 btfss aa_color_half,ACCESS
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	332 bra aa_decode_12
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	333
142 8b75ba28d641 Screen-flipping custom function. JeanDo parents: 123 diff changeset	334 movff aa_temp+0,PRODH ; Add color/2 if bit set.
681 6e456a6398e0 Hardware4 support heinrichsweikamp parents: 260 diff changeset	335 movff aa_temp+1,PRODL ; DISPLAY is big endian, so swap here.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	336 aa_decode_12:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	337 btfss aa_color_quart,ACCESS
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	338 bra aa_decode_3
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	339
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	340 ; Divide it once again by 2. Max red = 7/31.
142 8b75ba28d641 Screen-flipping custom function. JeanDo parents: 123 diff changeset	341 rrcf aa_temp+0,W,ACCESS ; xxRRRxxG
8b75ba28d641 Screen-flipping custom function. JeanDo parents: 123 diff changeset	342 andlw b'00111001' ; 00RRR00G (don't change C)
8b75ba28d641 Screen-flipping custom function. JeanDo parents: 123 diff changeset	343 movwf aa_temp+0,ACCESS
8b75ba28d641 Screen-flipping custom function. JeanDo parents: 123 diff changeset	344 rrcf aa_temp+1,W,ACCESS ; GGGxxBBB
8b75ba28d641 Screen-flipping custom function. JeanDo parents: 123 diff changeset	345 andlw b'11100111' ; GGG00BBB
8b75ba28d641 Screen-flipping custom function. JeanDo parents: 123 diff changeset	346 movwf aa_temp+1,ACCESS
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	347
142 8b75ba28d641 Screen-flipping custom function. JeanDo parents: 123 diff changeset	348 movf aa_temp+1,W,ACCESS ; Add color/4
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	349 addwf PRODL,F ; NOTE: 7/31+15/31=22/31,
142 8b75ba28d641 Screen-flipping custom function. JeanDo parents: 123 diff changeset	350 movf aa_temp+0,W,ACCESS ; hence composants won't overlap.
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	351 addwfc PRODH,F ; In right order, to propagate carry.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	352
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	353 bra aa_decode_3 ; Done.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	354
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	355 ; ---- Simple BLACK and WHITE cases ------------------------------
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	356 aa_decode_13: ; Got a 1xx or a 000 code...
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	357 btfsc win_invert,0 ; Inverse video mode ?
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	358 xorlw 0x80 ; YES: invert levels.
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	359 bn aa_decode_2 ; Then test high bit.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	360
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	361 ; WHITE pixel (ie. full color)
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	362 movff win_color1,PRODH ; current draw color
681 6e456a6398e0 Hardware4 support heinrichsweikamp parents: 260 diff changeset	363 movff win_color2,PRODL ; (rem: DISPLAY is big endian)
6e456a6398e0 Hardware4 support heinrichsweikamp parents: 260 diff changeset	364 setf win_color3
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	365 bra aa_decode_3
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	366
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	367 aa_decode_2:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	368 clrf PRODH,A ; BLACK pixel
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	369 clrf PRODL,A
681 6e456a6398e0 Hardware4 support heinrichsweikamp parents: 260 diff changeset	370 clrf win_color3
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	371
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	372 aa_decode_3:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	373 ;---- PIXEL WRITE LOOP -----------------------------------------------
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	374 AA_DATA_WRITE_PROD
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	375 decf aa_bitlen,F,ACCESS
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	376 bnz aa_decode_3
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	377
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	378 ;---- BYTE-CODE LOOP -------------------------------------------------
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	379 ; Are we done ?
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	380 movf TBLPTRL,W,A ; Compare TBLPTR to aa_end
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	381 cpfseq aa_end+0,ACCESS
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	382 bra aa_decode_1 ; Loop if LOW is different
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	383 movf TBLPTRH,W,A
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	384 cpfseq aa_end+1,ACCESS ; Loop to if HIGH is different
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	385 bra aa_decode_1
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	386
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	387 return
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	388
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	389 ;------------------------------------------------------------------------------
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	390 ; Setup pointers for a char:
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	391 ; Inputs : letter : string to print (SHOULD BE NULL TERMINATED)
681 6e456a6398e0 Hardware4 support heinrichsweikamp parents: 260 diff changeset	392 ; Output : DISPLAY commands on port D + clocks.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	393 ;
167 cb055a7d75f3 + Use overlay local vars. JeanDo parents: 142 diff changeset	394 global aa_wordprocessor ; Callable from C-code.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	395 aa_wordprocessor:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	396 ; Make sure context is well known
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	397 movlb HIGH win_top ; Switch to bank 0...
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	398
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	399 rcall aa_string_width ; Set win_height, compute win_width
681 6e456a6398e0 Hardware4 support heinrichsweikamp parents: 260 diff changeset	400 call DISP_box_write ; Use that for the box.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	401
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	402 ; Restart the loop for each char to print
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	403 lfsr FSR2, letter ; FSR2 pointer to start of string.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	404
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	405 ; DATA bloc commande:
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	406 AA_CMD_WRITE 0x22
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	407
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	408 aa_wordprocessor_1:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	409 movf POSTINC2,W,A ; WREG = *FSR2++
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	410 bz aa_wordprocessor_99 ; Exit if null byte encountered.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	411
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	412 rcall aa_char_setup ; setup aa_start / aa_end
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	413 rcall aa_decode_char ; write pixels to screen
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	414 bra aa_wordprocessor_1 ; and loop.
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	415
3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	416 aa_wordprocessor_99:
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	417 ; END of bloc commande
6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	418 AA_CMD_WRITE 0x00
83 3e351e25f5d1 adding anti-aliased fonts frame and merging some patches from Jeando heinrichsweikamp parents: diff changeset	419
123 6a94f96e9cea The big cleanup, again. JeanDo parents: 116 diff changeset	420 return

Mercurial > public > mk2

annotate code_part1/OSTC_code_asm_part1/aa_wordprocessor.asm @ 695:5bf4f526f552