Fujitsu MB90895 Series Hardware Manual page 643

G
Direct bit addressing (addr16:bp)
Specify arbitrary bits in 64 kilobytes explicitly. Address bits 16 to 23 are specified by the data bank register
(DTB). Bit positions are indicated by ":bp", where the larger number indicates the most significant bit
(MSB) and the lower number indicates the least significant bit (LSB).
Figure A.3-10 Example of direct bit addressing (addr16:bp)
SETB 2222H:0
Before execution
After execution
G
Vector Addressing (#vct)
Specify vector data in an operand to indicate the branch destination address. There are two sizes for vector
numbers: 4 bits and 8 bits. Vector addressing is used for a subroutine call or software interrupt instruction.
Figure A.3-11 Example of vector addressing (#vct)
CALLV #15
(This instruction causes a branch to the address indicated by the interrupt vector
specified in an operand.)
Before execution
After execution
(This instruction sets bits by direct bit addressing.)
DTB 5 5
DTB 5 5
PC 0 0 0 0
PCB F F
PC D 0 0 0
PCB F F
APPENDIX A Instructions
Memory space
552222H 0 0
Memory space
552222H 0 1
Memory space
FFFFE1H D 0
FFFFE0H 0 0
FFC000H E F CALLV #15
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