mul.c File Reference

Implements the OP_MUL opcode (numeric multiplication) 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_MUL
Value	a = pop_value(vm)
	else
	break

Detailed Description

Implements the OP_MUL opcode (numeric multiplication) in the VM.

Handles the OP_MUL instruction, multiplying two numeric operands and pushing the result. If either operand is a float, multiplication is performed in double precision; otherwise it is 64-bit integer multiplication.

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.

Example: // Bytecode: OP_MUL // Stack before: [3, 4] // Stack after: [12] // Stack before: [2.5, 4] // Stack after: [10.0]

Definition in file mul.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 38 of file mul.c.

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Variable Documentation

a

Value a = pop_value(vm)

Definition at line 37 of file mul.c.

break

break

Definition at line 57 of file mul.c.

else

else

Initial value:

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

Definition at line 52 of file mul.c.

OP_MUL

case OP_MUL

Definition at line 35 of file mul.c.