2023-04-17 12:31:18 +00:00
|
|
|
Holey Bytes has two bit widths
|
2023-04-18 23:08:30 +00:00
|
|
|
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.
|
|
|
|
|
|
2023-04-22 18:00:19 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
holeybytes will be a load-store machine
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2023-04-18 23:08:30 +00:00
|
|
|
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
|
