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Variables
Types of references

## Detailed Description

References are represented in the following form:

    target + tdelta - base

If the target is not present, then it will be calculated using

    target = operand_value - tdelta + base

The target must be present for LOW and HIGH reference types

## Variables
const reftype_t | REF_OFF8 = 0
| 8bit full offset
const reftype_t | REF_OFF16 = 1
| 16bit full offset
const reftype_t | REF_OFF32 = 2
| 32bit full offset
const reftype_t | REF_LOW8 = 3
| low 8bits of 16bit offset
const reftype_t | REF_LOW16 = 4
| low 16bits of 32bit offset
const reftype_t | REF_HIGH8 = 5
| high 8bits of 16bit offset
const reftype_t | REF_HIGH16 = 6
| high 16bits of 32bit offset
const reftype_t | REF_VHIGH = 7
| high processor_t::high_fixup_bits of 32bit offset
const reftype_t | REF_VLOW = 8
| low processor_t::high_fixup_bits of 32bit offset
const reftype_t | REF_OFF64 = 9
| 64bit full offset
const reftype_t | REF_LAST = REF_OFF64