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