It is currently Sat Mar 24, 2018 2:24 am

All times are UTC

Post new topic Reply to topic  [ 1 post ] 
Author Message
 Post subject: need help with this code
PostPosted: Fri May 25, 2012 5:17 pm 

Joined: Wed May 23, 2012 10:27 am
Posts: 5
Location: SAudi Arabia
i have the code of Digital Clock as i found it in the Esy68K Website.. i have changed the thickness of the time number ... but how can i change the color of the number, the background color.. add a voice as every hour pass .. please see this code

‎*‎                                          ‎*‎
‎*‎   digital clock for the EASy68k simulator   ‎2004/4/4‎               ‎*‎

x_size   EQU   ‎80‎         ‎* x size in pixels‎
y_size   EQU   ‎160‎         ‎* y size‎

seg_thick   EQU   ‎16‎         ‎* segment thickness‎

dig_sep   EQU   x_size+10‎      ‎* one digit to the next‎
chr_sep   EQU   ‎2*dig_sep+40‎   ‎* hours to minutes, minutes to ‎seconds

x_pos      EQU   ‎10‎         ‎* top left x co-ordinate
y_pos      EQU   ‎10‎         ‎* top left y co-ordinate

‎* code start. turn off the keyboard echo, set the initial colour and ‎draw the display
‎* this only needs to be done the once

   ORG      ‎$1000‎         ‎* set origin‎

   MOVEQ      ‎#12,d0‎      ‎* keyboard echo‎
   MOVEQ      ‎#0,d1‎         ‎* turn off echo‎
   TRAP      ‎#15‎         ‎* do i/o function‎

   BSR      LAB_init_disp   ‎* initialise display‎

   MOVEQ      ‎#8,d0‎         ‎* set for VFD colours‎
   MOVE.w   d0,LAB_colr      ‎* save it‎

‎* select next colour style. as there are only two entries in the colour ‎table we can
‎* toggle between them using a simple EOR instruction.‎

   MOVEQ      ‎#8,d0‎         ‎* set to toggle colours‎
   EOR.w      d0,LAB_colr      ‎* change colour array index

‎* either it's the first time through or the colour has just been changed ‎so set all
‎* the last time digits to $0A to force an update of all the clock digits ‎this time

   LEA      ‎(LAB_last,PC),a1‎   ‎* point to last time (seconds)‎
   MOVEQ      ‎#5,d7‎         ‎* six digits to do‎
   MOVEQ      ‎#$0A,d0‎      ‎* set for always update digit‎
   MOVE.b   d0,(a1)+‎      ‎* set digit‎
   DBRA      d7,LAB_clrl      ‎* loop‎

‎* main program loop starts here. first look to see if a key is waiting, ‎if there is
‎* get it and compare it with [SPACE]. if it's space then go and change ‎the colour
‎* index and force a whole display update‎

   MOVEQ      ‎#7,d0‎         ‎* get keyboard status‎
   TRAP      ‎#15‎
   TST.b      d1‎         ‎* test status‎
   BEQ.s      LAB_main      ‎* if no key waiting go do time‎

   MOVEQ      ‎#5,d0‎         ‎* get keyboard byte‎
   TRAP      ‎#15‎
   CMP.b      ‎#' ',d1‎      ‎* is it [SPACE]‎
   BEQ.s      LAB_chgc      ‎* if so go change the display colour‎

   MOVEQ      ‎#8,d0‎         ‎* get 100ths of a second since ‎midnight
   TRAP      ‎#15‎

‎* time in centiseconds since midnight is now in d1. first divide this by ‎‎100‎
‎* to give the time in seconds. to ensure that there is no overflow of ‎the
‎* divide instruction the longword time is split into words and each ‎handled
‎* separately‎

   MOVEQ      ‎#0,d0‎         ‎* clear longword‎
   SWAP      d1‎         ‎* switch words
   MOVE.w   d1,d0‎         ‎* copy time high word‎
   CLR.w      d1‎         ‎* clear high word‎

   MOVEQ      ‎#$64,d2‎      ‎* 100 decimal‎
   DIVU.w   d2,d0‎         ‎* divide high word‎
   SWAP      d0 ‎         ‎* switch words (remainder in low ‎word)‎
   MOVE.w   d0,d1‎         ‎* move remainder back‎
   SWAP      d0 ‎         ‎* switch words back (result in low ‎word)‎

   SWAP      d1‎         ‎* switch words‎
   DIVU.w   d2,d1‎         ‎* divide low word‎
   SWAP      d1‎         ‎* switch words (remainder in low ‎word)‎
   MOVE.w   d0,d1‎         ‎* copy seconds high word back‎
   SWAP      d1‎         ‎* switch words d1.l, now holds ‎seconds

‎* now divide the seconds up into the value for each digit. there is no ‎need to
‎* do this a word at a time as the first divide can never cause an ‎overflow. there
‎* are at most only 8368 tens of seconds in a day ‎

   LEA      ‎(LAB_curr,PC),a0‎   ‎* point to current time (seconds)‎
   MOVEQ      ‎#10,d0‎      ‎* divide by 10 for seconds‎
   BSR.s      LAB_digit      ‎* do digit‎
   MOVEQ      ‎#6,d0‎         ‎* divide by 6 for minutes‎
   BSR.s      LAB_digit      ‎* do digit‎
   MOVEQ      ‎#10,d0‎      ‎* divide by 10 for minutes‎
   BSR.s      LAB_digit      ‎* do digit‎
   MOVEQ      ‎#6,d0‎         ‎* divide by 6 for hours‎
   BSR.s      LAB_digit      ‎* do digit‎
   MOVEQ      ‎#10,d0‎      ‎* divide by 10 for hours‎
   BSR.s      LAB_digit      ‎* do digit‎
   MOVE.b   d1,(a0)‎      ‎* save 10s of hours digit‎

‎* the current time is now divided into digits and saved to memory. each ‎digit
‎* is compared to the same digit the last time here and if they differ ‎that
‎* digit is updated. at the first digit match the loop exits as all ‎remaining
‎* digits will be the same.‎

   LEA      ‎-5(a0),a0‎      ‎* reset current time pointer‎
   LEA      ‎(LAB_last,PC),a1‎   ‎* point to last time (seconds)‎

   MOVEQ      ‎#5,d7‎         ‎* six digits to do‎
   MOVEQ      ‎#0,d0‎         ‎* clear longword‎
   MOVEQ      ‎#0,d1‎         ‎* clear longword‎
   MOVE.b   ‎(a0)+,d0‎      ‎* get new digit‎
   MOVE.b   ‎(a1),d1‎      ‎* get last digit‎

   CMP.b      d0,d1‎         ‎* compare digits‎
   BEQ.s      LAB_mainl      ‎* exit loop if no digit change‎

   MOVE.b   d0,(a1)+‎      ‎* else make last digit = new digit‎
   BSR.s      LAB_dispd      ‎* go update digit display‎
   DBRA      d7,LAB_displ   ‎* loop if more digits to check‎

   BRA.s      LAB_mainl      ‎* main loop‎

‎* extract the next digit value from the time. this is easy on the 68k as ‎the DIVU
‎* instruction returns both the result of a divide and the remainder. in ‎this case
‎* the remainder is what we are interested in and is saved to the digit, ‎the divide
‎* result is just passed back‎

   DIVU.w   d0,d1‎         ‎* divide for next digit‎
   SWAP      d1‎         ‎* remainder into low word‎
   MOVE.b   d1,(a0)+‎      ‎* save time digit‎
   CLR.w      d1‎         ‎* clear remainder
   SWAP ‎      d1‎         ‎* return the remaining time‎

‎* update the digit indexed by d7. first set up the pointers and indeces‎

   LEA      ‎(LAB_disp,PC),a4‎   ‎* point to colour table
   LEA      ‎(LAB_chr,PC),a3‎   ‎* point to character co-ordinates
   MOVE.w   d7,d6‎         ‎* copy digit index‎
   ADD.w      d6,d6‎         ‎* *2‎
   LEA      ‎(a3,d6.w),a3‎   ‎* get character co-ordinate pointer

‎* make two mask bytes, the first, in d4, has bits set for each segment ‎that needs
‎* to be 'turned on' and the second, in d5, has bits set for each segment ‎that
‎* needs to be turned off. this minimises the ammount of drawing that ‎needs to be
‎* done to change from the old digit to the new‎

   LEA      ‎(LAB_dig,PC),a2‎   ‎* point to segment map
   MOVE.b   ‎(a2,d0.w),d4‎   ‎* get new digit on map‎
   MOVE.b   ‎(a2,d1.w),d5‎   ‎* get old digit off map‎
   AND.b      ‎$0B(a2,d1.w),d4‎   ‎* make new on byte = not old & new‎
   AND.b      ‎$0B(a2,d0.w),d5‎   ‎* make new off byte = not new & old‎

‎* start at segment G and erase, draw or skip each segment as needed

   LEA      ‎(LAB_seg_x,PC),a2‎   ‎* point to segment displacements‎
   MOVEQ      ‎#6,d6‎         ‎* start at G segment‎
   MOVE.w   LAB_colr,d3‎      ‎* get colour array index‎
   BTST      d6,d5‎         ‎* test segment off bit‎
   BEQ.s      LAB_nsegf      ‎* branch if no off bit‎

   MOVE.l   ‎(a4,d3.w),d1‎   ‎* else get erase colour‎
   BRA.s      LAB_segc      ‎* go erase the segment‎

   BTST      d6,d4‎         ‎* test segment on bit‎
   BEQ.s      LAB_nsegn      ‎* branch if no on bit‎

   MOVE.l   ‎4(a4,d3.w),d1‎   ‎* else get draw colour
   MOVEQ      ‎#81,d0‎      ‎* set fill colour for draw/erase‎
   TRAP      ‎#15‎

‎* the fill colour is set for this segment, now get a point from the ‎table that
‎* is somewhere within the segment and just flood fill it with the ‎previously set
‎* draw or erase colour

   MOVE.w   d6,d3‎         ‎* copy segment number‎
   ADD.w      d3,d3‎         ‎* *2 for word index‎
   MOVEQ   ‎#LAB_seg_y-LAB_seg_x,d2‎   ‎* offset to y table‎
   ADD.w      d3,d2‎         ‎* add index‎
   MOVE.w   ‎(a2,d3.w),d1‎   ‎* get segment x offset‎
   MOVE.w   ‎(a2,d2.w),d2‎   ‎* get segment y offset‎
   ADD.w      ‎(a3),d1‎      ‎* add digit x - set x co ordinate
   ADD.w      ‎#y_pos,d2‎      ‎* add digit y - set y co ordinate

   MOVEQ      ‎#89,d0‎      ‎* flood fill‎
   TRAP      ‎#15‎
   DBRA      d6,LAB_segl      ‎* decrement & loop‎


‎* initialise the display. for each digit in turn a filled rectangle is ‎drawn then the
‎* segment outlines are drawn in the background colour. finally the upper ‎and lower
‎* voids are erased by filling them with the background colour

   MOVEQ      ‎#5,d7‎         ‎* six digits to do‎

   MOVEQ      ‎#0,d1‎         ‎* set pen black‎
   MOVEQ      ‎#80,d0‎      ‎* set pen colour‎
   TRAP      ‎#15‎

   LEA      ‎(LAB_chr,PC),a3‎   ‎* point to character co-ordinates
   MOVEQ      ‎#1,d1‎         ‎* set background colour
   MOVEQ      ‎#81,d0‎      ‎* set fill colour‎
   TRAP      ‎#15‎

‎* get the co-ordinates and draw the filled rectangle

   MOVE.w   d7,d6‎         ‎* copy digit index‎
   ADD.w      d6,d6‎         ‎* *2 for word table index‎

   MOVEQ      ‎#0,d1‎         ‎* clear x1 longword‎
   MOVEQ      ‎#0,d2‎         ‎* clear y1 longword

   MOVE.w   ‎(a3,d6.w),d1‎   ‎* set x1‎
   MOVE.w   ‎#y_pos,d2‎      ‎* set y1‎

   MOVE.l   d1,d3‎         ‎* copy x1‎
   MOVE.l   d2,d4‎         ‎* copy y1‎
   ADD.w      ‎#x_size,d3‎      ‎* calculate x2‎
   ADD.w      ‎#y_size,d4‎      ‎* calculate y2‎

   MOVEQ      ‎#87,d0‎      ‎* draw filled rectangle‎
   TRAP      ‎#15‎

‎* set the fill colour to the background colour so that any fills will ‎remove
‎* parts of the rectangle we just drew‎

   MOVEQ      ‎#0,d1‎         ‎* set black fill‎
   MOVEQ      ‎#81,d0‎      ‎* set fill colour‎
   TRAP      ‎#15‎

‎* the commands to draw the segment outlines are held in a table and are ‎stored as
‎* command, X co-ordinate, Y co-ordinate. using just the move, line and ‎fill graphics
‎* commands a whole range of shapes could be drawn‎

   LEA      ‎(LAB_outl,PC),a4‎   ‎* point to segment outline data‎
   MOVE.w   ‎(a4)+,d0‎      ‎* get command‎
   BMI.s      LAB_comf      ‎* branch if commands finished‎

   MOVE.w   ‎(a4)+,d1‎      ‎* get next x1‎
   MOVE.w   ‎(a4)+,d2‎      ‎* get next y1‎
   ADD.w      ‎(a3,d6.w),d1‎   ‎* add character offset x1‎
   ADD.w      ‎#y_pos,d2‎      ‎* add character offset y1‎
   TRAP      ‎#15‎

   BRA.s      LAB_coml      ‎* loop for next‎

   DBRA      d7,LAB_initl   ‎* decrement & loop‎


‎* end of code, start of data‎

‎* data for segment outlines. first the G segment is outlined, then the A ‎and D
‎* segments are drawn and connecting lines are drawn between the corners ‎of these
‎* and the G segment to define the B, C, E and F segments. finally the ‎two inner
‎* voids are cleared with two fill commands‎

   dc.w   ‎86,0,y_size/2‎               ‎* MOVE segment G‎
   dc.w   ‎85,seg_thick,y_size/2+seg_thick/2‎      ‎* LINE‎
   dc.w   ‎85,x_size-seg_thick,y_size/2+seg_thick/2‎   ‎* LINE‎
   dc.w   ‎85,x_size,y_size/2‎            ‎* LINE‎
   dc.w   ‎85,x_size-seg_thick,y_size/2-seg_thick/2‎   ‎* LINE‎
   dc.w   ‎85,seg_thick,y_size/2-seg_thick/2‎      ‎* LINE‎
   dc.w   ‎85,0,y_size/2‎               ‎* LINE‎

   dc.w   ‎86,0,0‎                  ‎* MOVE segment A‎
   dc.w   ‎85,seg_thick,seg_thick‎            ‎* LINE‎
   dc.w   ‎85,x_size-seg_thick,seg_thick         ‎* LINE‎
   dc.w   ‎85,x_size,0‎                  ‎* LINE‎

   dc.w   ‎86,0,y_size‎                  ‎* MOVE segment D
   dc.w   ‎85,seg_thick,y_size-seg_thick         ‎* LINE‎
   dc.w   ‎85,x_size-seg_thick,y_size-seg_thick   ‎* LINE‎
   dc.w   ‎85,x_size,y_size‎               ‎* LINE‎

   dc.w   ‎86,seg_thick,y_size/2-seg_thick/2‎      ‎* MOVE segment F‎
   dc.w   ‎85,seg_thick,seg_thick‎            ‎* LINE‎
   dc.w   ‎86,x_size-seg_thick,y_size/2-seg_thick/2‎   ‎* MOVE segment B‎
   dc.w   ‎85,x_size-seg_thick,seg_thick         ‎* LINE‎
   dc.w   ‎86,seg_thick,y_size/2+seg_thick/2‎      ‎* MOVE segment E‎
   dc.w   ‎85,seg_thick,y_size-seg_thick         ‎* LINE‎
   dc.w   ‎86,x_size-seg_thick,y_size/2+seg_thick/2‎   ‎* MOVE segment C
   dc.w   ‎85,x_size-seg_thick,y_size-seg_thick   ‎* LINE‎

   dc.w   ‎89,x_size/2,y_size/4‎            ‎* FILL upper void‎
   dc.w   ‎89,x_size/2,3*y_size/4‎            ‎* FILL lower void‎

   dc.w   ‎-1‎                     ‎* end marker‎

‎*‎   ‎  00000‎   segments A through G are represented by bits 0 through ‎‎6 as shown.‎
‎*‎   ‎ 5     1‎   the first line is the is the array of on segments, the ‎second line ‎
‎*‎   ‎ 5     1‎   is the array of off segments. an extra digit with all ‎it's segments
‎*‎   ‎  66666‎   both on and off is added to allow for a forced update ‎to the entire
‎*‎   ‎ 4     2‎   display, both at startup and when the colour is ‎changed
‎*‎   ‎ 4     2‎
‎*‎   ‎  33333‎   digits are 0 to 9 then the extra one in order

   dc.b   ‎$3F,$06,$5B,$4F,$66,$6D,$7D,$07,$7F,$6F,$7F‎
   dc.b   ‎$40,$F9,$A4,$B0,$99,$92,$82,$F8,$80,$90,$7F‎

‎* these tables define the top left corner of each digit. they are ‎calculated at
‎* assembly time from the values defined in the equates before the start ‎of the code
‎* only the x value is saved as the y value is the same for all digits‎

   dc.w   x_pos
   dc.w   x_pos+dig_sep
   dc.w   x_pos+chr_sep
   dc.w   x_pos+chr_sep+dig_sep
   dc.w   x_pos+chr_sep+chr_sep
   dc.w   x_pos+chr_sep+chr_sep+dig_sep

‎* these two tables hold a list of points that lie one within each ‎segment. they
‎* are used as the flood fill origin points when painting the segments

   dc.w   x_size/2‎         ‎* segment A‎
   dc.w   x_size-seg_thick/2‎   ‎* segment B‎
   dc.w   x_size-seg_thick/2‎   ‎* segment C‎
   dc.w   x_size/2‎         ‎* segment D‎
   dc.w   seg_thick/2‎         ‎* segment E‎
   dc.w   seg_thick/2‎         ‎* segment F‎
   dc.w   x_size/2‎         ‎* segment G‎
   dc.w   seg_thick/2‎         ‎* segment A‎
   dc.w   y_size/4‎         ‎* segment B‎
   dc.w   ‎3*y_size/4‎         ‎* segment C‎
   dc.w   y_size-seg_thick/2‎   ‎* segment D‎
   dc.w   ‎3*y_size/4‎         ‎* segment E‎
   dc.w   y_size/4‎         ‎* segment F‎
   dc.w   y_size/2‎         ‎* segment G

‎* display colour table. these pairs of longwords are the unlit and lit ‎colours for
‎* the different styles of displays. note that neither of them can be the ‎same as the
‎* background colour as that is used to define the segment edges to bound ‎the flood
‎* fill‎

   dc.l   ‎$111122,$1111FF‎      ‎* LED display‎
   dc.l   ‎$222211,$EEEE11‎      ‎* VF display‎

‎* variables‎

   ds.w   ‎1‎            ‎* colour index word, 0 for LED, 8 ‎for VFD
   ds.b   ‎6‎            ‎* current time, seconds to 10s hours‎
   ds.b   ‎6‎            ‎* last time, seconds to 10s hours‎

   END   start


‎*~Font name~Courier New~‎
‎*~Font size~10~‎
‎*~Tab type~1~‎
‎*~Tab size~8~‎

Proud of being Muslim

Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC

Who is online

Users browsing this forum: No registered users and 2 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group