4513_03 Datasheet, PDF (88/210 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCOMPUTER

HARDWARE
MACHINE INSTRUCTIONS
Skip condition
Datailed description
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– Branch within a page : Branches to address a in the identical page.
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– Branch out of a page : Branches to address a in page p.
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– Branch out of a page : Branches to address (DR2 DR1 DR0 A3 A2 A1 A0)2 specified by registers D and A in
page p.
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– Call the subroutine in page 2 : Calls the subroutine at address a in page 2.
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– Call the subroutine : Calls the subroutine at address a in page p.
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– Call the subroutine : Calls the subroutine at address (DR2 DR1 DR0 A3 A2 A1 A0)2 specified by registers D
and A in page p.
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– Returns from interrupt service routine to main routine.
Returns each value of data pointer (X, Y, Z), carry flag, skip status, NOP mode status by the continuous de-
scription of the LA/LXY instruction, register A and register B to the states just before interrupt.
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– Returns from subroutine to the routine called the subroutine.
Skip at uncondition – Returns from subroutine to the routine called the subroutine, and skips the next instruction at uncondition.
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(EXF0) = 1
– Clears (0) to the interrupt enable flag INTE, and disables the interrupt.
– Sets (1) to the interrupt enable flag INTE, and enables the interrupt.
– Skips the next instruction when the contents of EXF0 flag is “1.”
After skipping, clears (0) to the EXF0 flag.
(EXF1) = 1
– Skips the next instruction when the contents of EXF1 flag is “1.”
After skipping, clears (0) to the EXF1 flag.
4513/4514 Group User’s Manual
1-75