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  1. //Тестирование скорости операции DA= DX*DY  через uDSC
  2. #define tcnt2 (*(volatile uint16_t*)0xB1)
  3. #define tcnt3 (*(volatile uint16_t*)0x94)
  4. #include "lgtx8p.h"
  5.  
  6. #define DSCR  0x00
  7. #define DSIR  0x01
  8. #define DSSD  0x02
  9. #define DSDX  0x10
  10. #define DSDY  0x11
  11. #define DSAL  0x38
  12. #define DSAH  0x39
  13.  
  14. #define DSCR_D1 (1<<5)    //Флаг завершения деления, 1 - Операция завершена
  15.  
  16. volatile uint32_t data; //для результата ариф. операций
  17. void setup() {
  18.   Serial.begin(115200);
  19.   Serial.println ("Start..");
  20.   TCCR2A = 0; TCCR2B = 1 << CS20; //запустить таймер
  21.   TCCR3A = 0; TCCR3B = 1 << CS30; //запустить таймер
  22.   TCKSR = 0; TIMSK1 = 0; TCCR1A = 0; TCCR1B = 0; //обнулить лишнее
  23.   OCR1A = 65535u; OCR1B = 65535u; // чтоб удобнее читать регистр флагов
  24. }
  25.  
  26. void loop() {
  27.   cli();
  28.   TCNT1 = 0; TIFR1 = TIFR1;
  29.   uint32_t da = (uint32_t)tcnt2;
  30.   da<<=10;
  31.   uint16_t dy = tcnt3;
  32.   data  = uDSC(da, dy);
  33.   sei();
  34.   Serial.print("Test uDSC  ");
  35.   if (TIFR1) {
  36.     Serial.println("Timer overload");
  37.   }
  38.   else {
  39.     Serial.print(TCNT1); Serial.println("  tic mk ");
  40.   }
  41.   Serial.print("da="); Serial.print(da);
  42.   Serial.print(" dy="); Serial.print(dy);
  43.   Serial.print(" da / dy ="); Serial.println (data);
  44.   Serial.println("..");
  45.   Serial.println("..");
  46.   delay(5000);
  47.  
  48. }
  49.  
  50. #if 0
  51. volatile uint32_t uDSC(uint16_t dx, uint16_t dy) {
  52.   TCCR1B = 1; //пошёл счёт времени!
  53.   uint32_t rv = 0;
  54. #if 1
  55.   asm volatile(
  56.     "ldi r18, 0x80;"     "\n\t"
  57.     "out 0x00, r18;"     "\n\t"
  58.     "out 0x10, %[dsdx];" "\n\t"
  59.     "out 0x11, %[dsdy];" "\n\t"
  60.     "ldi r18, %[opc];"   "\n\t"
  61.     "out 0x01, r18;"     "\n\t"
  62.     "in %A0, 0x38;"      "\n\t"
  63.     "in %C0, 0x39;"      "\n\t"
  64.     : "=r" (rv)
  65.     : [dsdx] "r" (dx), [dsdy] "r" (dy), [opc] "i" (0x44)
  66.     :"r18"
  67.   ) ;
  68. #endif
  69. #if 0
  70.   rv = (uint32_t)dx * (uint32_t)dy;
  71. #endif
  72.   TCCR1B = 0; //стоп таймер
  73.   return rv;
  74. }
  75. #endif
  76.  
  77. #if 1
  78. volatile uint32_t uDSC(uint32_t da, uint16_t dy) {
  79.   TCCR1B = 1; //пошёл счёт времени!
  80.   uint32_t rv = 0;
  81. #if 0
  82.   asm volatile(
  83.     "ldi r18, 0x80;"         "\n\t"
  84.     "out 0x00, r18;"         "\n\t"
  85.     "out 0x38, %A1;"         "\n\t"
  86.     "out 0x39, %C1;"         "\n\t"
  87.     "out 0x11, %[dsdy];"     "\n\t"
  88.     "ldi r18, %[opc];"       "\n\t"
  89.     "out 0x01, r18;"         "\n\t"
  90.     "chk_dc%=: "             "\n\t"
  91.     "nop;"                   "\n\t"
  92.     "nop;"                   "\n\t"
  93.     "nop;"                   "\n\t"
  94.     "in r18, 0x00;"          "\n\t"
  95.     "andi r18, 0x20;"        "\n\t"
  96.     "brbc 1, chk_dc%=;"      "\n\t"
  97.     "nop;"                   "\n\t"
  98.     "in %A0, 0x38;"          "\n\t"
  99.     "in %C0, 0x39;"          "\n\t"
  100.     : "=r" (rv)
  101.     : "r" (da), [dsdy] "r" (dy), [opc] "i" (0xb0)
  102.     :"r18"
  103.   ) ;
  104. #endif
  105. #if 1
  106.   rv = da / dy;
  107. #endif
  108.   TCCR1B = 0; //стоп таймер
  109.   return rv;
  110. }
  111. #endif
  112.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.cpp:4:10: fatal error: lgtx8p.h: No such file or directory
 #include "lgtx8p.h"
          ^~~~~~~~~~
compilation terminated.
stdout
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Standard output is empty
https://ideone.com/HRJviY
language:
C++ (gcc 8.3)
created:
21 days ago
visibility:
secret

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