div.c File Reference

Implements the OP_DIV opcode (numeric division) in the VM. More...

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Functions
	if ((a.type==VAL_INT||a.type==VAL_FLOAT) &&(b.type==VAL_INT||b.type==VAL_FLOAT))
	exit (1)

Variables
case	OP_DIV
Value	a = pop_value(vm)
	else
	break

Detailed Description

Implements the OP_DIV opcode (numeric division) in the VM.

Handles the OP_DIV instruction, dividing two numeric operands and pushing the result. If either operand is a float, division is performed in double precision and a VAL_FLOAT is produced; otherwise integer division is used and a VAL_INT is produced.

Behavior:

• Pops two values from the stack.
• If any operand is VAL_FLOAT, computes (double)a / (double)b and pushes a VAL_FLOAT.
• Else computes a.i / b.i and pushes a VAL_INT.

Error Handling:

• Raises a runtime error and aborts execution if operands are not numeric.
• Raises a runtime error on division by zero (both integer and floating cases).

Example:

• Bytecode: OP_DIV
• Stack before: [10, 2]
• Stack after: [5]
• Stack before: [5.0, 2]
• Stack after: [2.5]

Definition in file div.c.

Function Documentation

exit()

exit

(

1

)

if()

if

(

(a.type==VAL_INT||a.type==VAL_FLOAT) &&(b.type==VAL_INT||b.type==VAL_FLOAT)

)

Definition at line 39 of file div.c.

Variable Documentation

a

Value a = pop_value(vm)

Definition at line 38 of file div.c.

break

break

Definition at line 66 of file div.c.

else

else

Initial value:

{
    fprintf(stderr, "Runtime type error: DIV expects numbers, got %s and %s\n",
            value_type_name(a.type), value_type_name(b.type))

Definition at line 61 of file div.c.

OP_DIV

case OP_DIV

Definition at line 36 of file div.c.