int/interpret.c

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