Subtraction of value of first and second terms.
[Function]
Returns the result of subtraction of the 2nd-term value from the 1st-term value.
[Application example]
.org 0x100
BACK: jr BACK - 6 ; (1)
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(1) | The jr instruction causes a jump to "address assigned to BACK minus 6", namely, to address "0x100 - 0x6 = 0xFA" when BACK label is 0x100. |