IDIV

Performs a signed division on a register with a register or immediate value. The dividend is represented by 2 registers for high and low bits.

Instruction	Operand 1	Operand 2	Operand 3	Description
IDIV	Reg	Reg/Imm	Reg/Imm	OP1 = [OP2:OP1] / OP3 (Signed)

block->idiv(REG_SP, 0, REG_SP); // sets REG_SP to 1