The following C function prints the integer in the accumulator.  It doesn't work (due to overflow) if it happens to be the most negative integer.  The contents of the accumulator are lost.

void printint(void)
{ int weight = 1;
  if (AC<0) {putchar('-'); AC = -AC;}
  while (AC/weight >= 10) weight *= 10;
  while(1)
  { putchar(AC/weight+'0');
    if(weight==1) return;
    AC %= weight; weight /= 10;
  }
}

Here's a translation to assembly language.

toprint: W 1
weight: I 1
charminus: C'-'
char0: I 48
mask: H 80000000
C0: I 0
C1: I 1
C10: I 10
printint: W 1
   STA toprint
   AND mask
   BZE while1
   LDA charminus
out1: OUT out1
   LDA C0
   SUB toprint
   STA toprint
while1: LDA toprint
   DIV weight
   SUB C10
   AND mask
   BZE body1
   BUN while2
body1: LDA weight
   MUL C10
   STA weight
   BUN while1
while2: LDA toprint
   DIV weight
   ADD char0
out2: OUT out2
   LDA weight
   XOR C1
   BZE return
   LDA toprint
   MOD weight
   STA toprint
   LDA weight
   DIV C10
   STA weight
   BUN while2
return: BIN printint