forked from AbleOS/ableos
869 B
869 B
Holey Bytes has two bit widths 8 bit to help with byte level manipulation and 64 bit numbers because nothing else should ever be used in a modern setting
this leaves us with an amount of registers that should be defined
I'd like to use a letter and a number to represent registers
like a0 or d0 the first of which would be reserved for 8 bit numbers and the later of which 64 bit.
instructions
NOP
0
ADD_8 TYPE LHS RHS LOCATION
1
SUB TYPE LHS RHS LOCATION
2
MUL TYPE LHS RHS LOCATION
3
MUL TYPE LHS RHS LOCATION
4
DIV TYPE LHS RHS LOCATION
5
JUMP ADDR
100
an unconditional jump to an address
JUMP_EQ LHS RHS ADDR
101
A conditional jump
if LHS is equal to RHS then jump to address
JUMP_NEQ LHS RHS ADDR
102
A conditional jump
if LHS is not equal to RHS then jump to address
RET
pop off the callstack