int/nucleo-f767-blinky/src/interpret.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3
   4 #include "mTaskSymbols.h"
   5 #include "interpret.h"
   6 #include "interface.h"
   7 #include "task.h"
   8 #include "sds.h"
   9
  10 #ifdef STM32F767xx
  11 #define trace(op, ...) ;
  12 #else
  13 #define trace(op, ...) ;
  14 //printf("pc: %d, sp: %d, op: " op, pc, sp, ##__VA_ARGS__);
  15 #endif
  16
  17 void run_task(struct task *t)
  18 {
  19         uint8_t *program = t->bc;
  20         int plen = t->tlen;
  21         int pc = 0;
  22         int sp = 0;
  23         char stack[STACKSIZE] = {0};
  24         debug("Running task with length: %d\n", plen);
  25         while(pc != plen){
  26                 debug("program: %d\n", program[pc]);
  27                 debug("stack: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
  28                         stack[0], stack[1], stack[2], stack[3], stack[4],
  29                         stack[5], stack[6], stack[7], stack[8], stack[9]);
  30
  31                 switch(program[pc++]){
  32                 case BCNOP: trace("nop\n");
  33                         break;
  34                 case BCLAB: trace("label: 0x%02x!!!!!!\n", program[pc]);
  35                         pc++;
  36                         break;
  37                 case BCPUSH: trace("push %d\n", program[pc]*265+program[pc+1]);
  38                         stack[sp++] = program[pc]*265 + program[pc+1];
  39                         pc+=2;
  40                         break;
  41                 case BCPOP: trace("pop\n");
  42                         sp--;
  43                         break;
  44                 case BCSDSSTORE: trace("sds store: %d\n", program[pc]);
  45                         sds_store(program[pc++], stack[--sp]);
  46                         break;
  47                 case BCSDSFETCH: trace("sds fetch: %d\n", program[pc]);
  48                         stack[sp++] = sds_fetch(program[pc++]);
  49                         break;
  50                 case BCSDSPUBLISH: trace("sds publish %d\n", program[pc]);
  51                         sds_publish(program[pc++]);
  52                         break;
  53                 case BCNOT: trace("not\n");
  54                         stack[sp] = stack[sp] > 0 ? 0 : 1;
  55                         break;
  56                 case BCADD: trace("add\n");
  57                         stack[sp-2] = stack[sp-1] + stack[sp-2];
  58                         sp -= 1;
  59                         break;
  60                 case BCSUB: trace("sub\n");
  61                         stack[sp-2] = stack[sp-1] - stack[sp-2];
  62                         sp -= 1;
  63                         break;
  64                 case BCMUL: trace("mul\n");
  65                         stack[sp-2] = stack[sp-1] * stack[sp-2];
  66                         sp -= 1;
  67                         break;
  68                 case BCDIV: trace("div\n");
  69                         stack[sp-2] = stack[sp-1] / stack[sp-2];
  70                         sp -= 1;
  71                         break;
  72                 case BCAND: trace("and\n");
  73                         stack[sp-2] = stack[sp-1] && stack[sp-2];
  74                         sp -= 1;
  75                         break;
  76                 case BCOR: trace("or\n");
  77                         stack[sp-2] = stack[sp-1] || stack[sp-2];
  78                         sp -= 1;
  79                         break;
  80                 case BCEQ: trace("eq\n");
  81                         stack[sp-2] = stack[sp-1] == stack[sp-2];
  82                         sp -= 1;
  83                         break;
  84                 case BCNEQ: trace("neq\n");
  85                         stack[sp-2] = stack[sp-1] != stack[sp-2];
  86                         sp -= 1;
  87                         break;
  88                 case BCLES: trace("les\n");
  89                         stack[sp-2] = stack[sp-1] < stack[sp-2];
  90                         sp -= 1;
  91                         break;
  92                 case BCGRE: trace("gre\n");
  93                         stack[sp-2] = stack[sp-1] > stack[sp-2];
  94                         sp -= 1;
  95                         break;
  96                 case BCLEQ: trace("leq\n");
  97                         stack[sp-2] = stack[sp-1] <= stack[sp-2];
  98                         sp -= 1;
  99                         break;
 100                 case BCGEQ: trace("geq\n");
 101                         stack[sp-2] = stack[sp-1] >= stack[sp-2];
 102                         sp -= 1;
 103                         break;
 104                 case BCJMP: trace("jmp to %d\n", program[pc]);
 105                         pc = program[pc]-1;
 106                         break;
 107                 case BCJMPT: trace("jmpt to %d\n", program[pc]);
 108                         pc = stack[--sp] ? program[pc]-1 : pc+1;
 109                         break;
 110                 case BCJMPF: trace("jmpf to %d\n", program[pc]);
 111                         pc = stack[--sp] ? pc+1 : program[pc]-1;
 112                         break;
 113                 case BCSERIALAVAIL: trace("SerialAvailable()\n");
 114                         break;
 115                 case BCSERIALPRINT: trace("SerialPrint()\n");
 116                         break;
 117                 case BCSERIALPRINTLN: trace("SerialPrintln()\n");
 118                         break;
 119                 case BCSERIALREAD: trace("SerialRead()\n");
 120                         break;
 121                 case BCSERIALPARSEINT: trace("SerialParseInt()\n");
 122                         break;
 123                 case BCANALOGREAD: trace("AnalogRead(%d)\n", program[pc]);
 124                         stack[sp++] = read_apin(program[pc++]);
 125                         break;
 126                 case BCANALOGWRITE: trace("AnalogWrite(%d)\n", program[pc]);
 127                         write_apin(program[pc++], stack[sp-1]);
 128                         sp--;
 129                         break;
 130                 case BCDIGITALREAD: trace("DigitalRead(%d)\n", program[pc]);
 131                         stack[sp++] = read_dpin(program[pc++]);
 132                         break;
 133                 case BCDIGITALWRITE: trace("DigitalWrite(%d)\n", program[pc]);
 134                         write_dpin(program[pc++], stack[sp-1]);
 135                         sp--;
 136                         break;
 137                 default:
 138                         trace("unrecognized\n");
 139                         die("Unrecognized command: %d\n", program[pc-1]);
 140                 }
 141         }
 142         debug("Task terminated\n");
 143 }