Code: Why is this code greater than 2000 words?

[Acetronics2]

just missing ref. to a twin axis gyroscope sensor ... IDG 300 ???



<< if Ratio < 100 And Ratio > 0 then ... >>

other room to save : Ratio is ALWAYS > 0 ( Coz. PbP only works with POSITIVE INTEGERS !!! ) ...

<< Alpha = Ratio*11 + 732*10 >>

Why not directly write " Alpha = Ratio*11 + 7320 "

saves one 16x16 multiplication !!!


Was just some examples ...


Alain

[mister_e]

Here the multiple used math is more revealant than Pulsout Itself. Yeah i still refer to the same method to measure the code size... let's see

<font color="#000080">@ __CONFIG  _INTRC_OSC_NOCLKOUT &amp; _MCLRE_ON  &amp;  _LVP_OFF &amp; _WDT_OFF &amp; _PWRTE_ON  &amp; _BODEN_ON  
    </font>PORTB=0
    TRISB=0
    Led1    <font color="#000080">VAR </font>PORTB.0
    Led2    <font color="#000080">VAR </font>PORTB.1
    Led3    <font color="#000080">VAR </font>PORTB.2
    Led4    <font color="#000080">VAR </font>PORTB.3
    Led5    <font color="#000080">VAR </font>PORTB.4
    Led6    <font color="#000080">VAR </font>PORTB.5
    Led7    <font color="#000080">VAR </font>PORTB.6
    Led8    <font color="#000080">VAR </font>PORTB.7
    ByteA   <font color="#000080">VAR BYTE
    </font>ByteB   <font color="#000080">VAR BYTE
    </font>Worda   <font color="#000080">VAR WORD
    
    </font>PORT    <font color="#000080">VAR BYTE
    </font>DURATION <font color="#000080">VAR WORD
    GOTO </font>Start
    <font color="#000080">ASM
HOGSTART MACRO
BLOCKSTART=$
    ENDM
    
HOGEND  MACRO BLOCKNAME
BLOCKNAME = $-BLOCKSTART
    ENDM

CUSTOM_PULSOUT MACRO PORT, PIN, DURATION, BYTEA
    PULSOUT?TC PORT,PIN,DURATION
    MOVE?CB BYTEA,_ByteA
    L?CALL _DO_CALC
    ENDM
ENDASM

</font>DO_CALC:
    ByteB=50+ByteA
    Worda=(ByteA+ByteB)*100
    <font color="#000080">RETURN

</font>Start:
    @   HOGSTART            
    <font color="#000080">PULSOUT  </font>Led1,10000
    ByteA=10
    ByteB=50 + ByteA
    Worda=(ByteA+ByteB)*100
    
    <font color="#000080">PULSOUT  </font>Led2,10000
    ByteA=20
    ByteB=50 + ByteA
    Worda=(ByteA+ByteB)*100

    <font color="#000080">PULSOUT  </font>Led3,10000
    ByteA=30
    ByteB=50 + ByteA
    Worda=(ByteA+ByteB)*100

    <font color="#000080">PULSOUT  </font>Led4,10000
    ByteA=40
    ByteB=50 + ByteA
    Worda=(ByteA+ByteB)*100
    @   HOGEND ____MULTIPLEPULSOUT
    
    <font color="#000080">ASM
        HOGSTART
        CUSTOM_PULSOUT _Led1,10000,10
        CUSTOM_PULSOUT _Led2,10000,20
        CUSTOM_PULSOUT _Led3,10000,30
        CUSTOM_PULSOUT _Led4,10000,40
        HOGEND ____MACRO_CUSTOM_PULSOUT
    ENDASM   
    
</font>SPIN: <font color="#000080">GOTO </font>SPIN

Compile this with MPASM, and open the according .LST file... and discover that...

SYMBOL TABLE
LABEL VALUE

____MACRO_CUSTOM_PULSOUT 0000002C
____MULTIPLEPULSOUT 00000074

2c=44 decimal
74=116 Decimal

here the simple macro and sub call will use 116/44=~2.6 time less code and make the code MUCH MORE readable... at least to me.. case not.. hum, hum, just fart in Darrel's direction

How handy they are

[skimask]

How handy they are

The farts or the macros?

[mister_e]

mmm, hard to tell