96
EPSON
S1C63000 CORE CPU MANUAL
CHAPTER 4: INSTRUCTION SET
JR %BA
Jump to relative location BA reg.
1 cycle
Function:
PC
←
PC + BA + 1
Adds the content of the BA register to the address next to this instruction, to unconditionally
branch to that address. Branch destination range is the next address of this instr0 to
255.
Code:
Mnemonic
MSB
LSB
JR %BA
1
1
1
1
1
1
1
1
1
0
0
0
0
1FF0H
Flags:
E
I
C
Z
↓
–
–
–
Mode:
Register direct
Extended addressing: Invalid
JR [addr6]
Jump to relative location [addr6]
2 cycles
Function:
PC
←
PC + [addr6] + 1 (addr6 = 0000H–003FH)
Adds the content of the data memory (0000H–003FH) specified with the addr6 to the address
next to this instruction , to unconditionally branch to that address. Branch destination range is
the next address of this instr0 to 15.
Code:
Mnemonic
MSB
LSB
JR [addr6]
1
1
1
1
1
0
1 a5 a4 a3 a2 a1 a0 1F40H–1F7FH
Flags:
E
I
C
Z
↓
–
–
–
Mode:
6-bit absolute
Extended addressing: Invalid
Содержание S1C63000
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