Generates 32-bit address (DISP32), performs a MULA operation with it
and the content of register Rs (bank selected by BS5), and adds the
current content of the AGU accumulator register. The result is loaded
into the AGU accumulator register.
Takes 5 cycles to execute.
Example: AGU_RXDA ZERO 5 0xA5
DISP AGU P5
-----------------
00000000 - A5
00000000 - 00
00000005 RXDA 00
00000000 - 00
00000000 - 00
NOT YET
AGU_RXDA ZERO 10 0x20
!! Perform MULA with content of
!! register 0x20 and address 10
!! Add content of accumulator to
!! MULA result then load the final
!! result to AGU accumulator.