REM

Performs an unsigned modulo operation on a register with a register or immediate value. The source value is represented by 2 registers for high and low bits.

Instruction	Operand 1	Operand 2	Operand 3	Description
REM	Reg	Reg/Imm	Reg/Imm	OP1 = [OP2:OP1] % OP3

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