A: 0x00 HX: 0x0D4B SP: 0x0D4A PC: 0x18E0 Z:1
A: 0x00 HX: LUNG/2 SP: 0x0D4A PC: 0x192B Z:1

   8: 178806 -> 179480 :   674 = 42+79*   8
  16: 178806 -> 180112 :  1306 = 42+79*  16
  32: 178806 -> 181376 :  2570 = 42+79*  32
  64: 178806 -> 183904 :  5098 = 42+79*  64
 128: 178806 -> 188960 : 10154 = 42+79* 128
 256: 178806 -> 199072 : 20266 = 42+79* 256
 511: 178806 -> 219138 : 40332 = 42+79* 511
 512: 178806 -> 219301 : 40495 < 42+79* 512 = 40490
 514: 178806 -> 219459 : 40653 < 42+79* 514 = 40648
1024: 178806 -> 259754 : 80948 > 42+79*1024 = 80938

ottima definizione esatta del tempo di esecuzione!

T(n)=42+79*n+5*(n/512) oppure T(n)=42+79*n+(n>>9)

dati 0x100-> 3072 byte

**********************************************

static unsigned char dati[3072]={...};

void swap(unsigned char *a, unsigned char *b)
 { unsigned char tmp=*a; *a=*b; *b=tmp; return; }

18BE       PSHX
18BF       PSHH
18C0       LDHX 5,SP
18C3       LDA ,X
18C4       LDHX 1,SP
18C7       PSHA
18C8       LDA ,X
18C9       LDHX 6,SP
18CC       STA ,X
18CD       LDHX 2,SP
18D0       PULA
18D1       STA ,X
18D2       AIS #2
18D4       RTS

18D5-18DF ...

void main(void)
{
 unsigned int pos=0,limit=0;

 for(limit=3072;pos<(limit/2);pos++)
  { swap(&dati[pos],&dati[limit-pos-1]); }

18E0       LDHX #LUNG
18E3       STHX 4,SP
18E6 20 32 BRA *+52 ; 191A
18E8       TSX
18E9       LDA 2,X
18EB       ADD #0x00
18ED       PSHA
18EE       LDA 1,X
18F0       ADC #0x01
18F2       PSHA
18F3       LDA 4,X
18F5       SUB 2,X
18F7       STA ,X
18F8       LDA 3,X
18FA       SBC 1,X
18FC       PSHA
18FD       LDX ,X
18FE       PULH
18FF       AIX #-1
1901       TXA
1902       ADD #0x00
1904       PSHH
1905       TSX
1906       STA 3,X
1908       PULA
1909       ADC #0x01
190B       LDX 3,X
190D       PSHA
190E       PULH
190F AD AD BSR *-81 ; 18BE
1911       AIS #2
1913       TSX
1914       INC 2,X
1916 26 02 BNE *+4 ; 191A
1918       INC 1,X
191A       TSX
191B       LDA 3,X
191D       PSHA
191E       PULH
191F       LSRA
1920       TSX
1921       LDX 4,X
1923       RORX
1924       PSHA
1925       PULH
1926       CPHX 2,SP
1929 22 BD BHI *-65 ; 18E8