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eZ80 CPU User Manual 66 JR d Jump Relative Operation Description PC ← PC + d The two’s-complement displacement d is added to the program counter. The jump is measured from the address of the byte following the instruction (JR Op Code +2). Condition Bits Affected None Mnemonic Operands ADL Mode Cycles Op Codes JR d X 3 18, dd UM007701-1100
eZ80 CPU User Manual 67 JR cc, d Conditional Jump Relative Operation Description If cc’ TRUE: PC ← PC + d If the condition is true, then the two’s-complement displacement d is added to the program counter. The jump is measured from the address of the byte following the instruction (JR Op Code +2). Condition Bits Affected None Mnemonic Operands ADL Mode Cycles Op Codes JR cc,d X 2/3 kk, dd kk = binary code 00 ccc 000 where ccc identifies one of status conditions assembled as follows into the object code. ccc Condition Relevant Flag 100 NZ (non-zero) Z 101 Z (zero) Z 110 NC (non-carry) C 111 C (carry) C UM007701-1100
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eZ80 CPU User Manual UM007701-1100
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eZ80 CPU User Manual i Table of Con
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eZ80 CPU User Manual iii INIR . . .
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eZ80 CPU User Manual v List of Tabl
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eZ80 CPU User Manual 1 Introduction
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eZ80 CPU User Manual 3 In ADL mode,
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eZ80 CPU User Manual 5 CPU Response
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eZ80 CPU User Manual 7 I/O Space A
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eZ80 CPU User Manual 9 Changing the
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eZ80 CPU User Manual 11 Table 4. RE
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eZ80 CPU User Manual 13 Suffixes .I
Page 23 and 24: eZ80 CPU User Manual 15 Carry Flag
Page 25 and 26: eZ80 CPU User Manual 17 For compare
Page 27 and 28: eZ80 CPU User Manual 19 ADC HL, ss
Page 29 and 30: eZ80 CPU User Manual 21 ADD rr, ss
Page 31 and 32: eZ80 CPU User Manual 23 BIT b, m Te
Page 33 and 34: eZ80 CPU User Manual 25 CALL cc, Mm
Page 35 and 36: eZ80 CPU User Manual 27 CCF Complem
Page 37 and 38: eZ80 CPU User Manual 29 CPD Compare
Page 39 and 40: eZ80 CPU User Manual 31 CPI Compare
Page 41 and 42: eZ80 CPU User Manual 33 CPL Complem
Page 43 and 44: eZ80 CPU User Manual 35 DEC qq Decr
Page 45 and 46: eZ80 CPU User Manual 37 DI Disable
Page 47 and 48: eZ80 CPU User Manual 39 EI Enable I
Page 49 and 50: eZ80 CPU User Manual 41 EX DE, HL E
Page 51 and 52: eZ80 CPU User Manual 43 EXX Exchang
Page 53 and 54: eZ80 CPU User Manual 45 IM n Set In
Page 55 and 56: eZ80 CPU User Manual 47 IN r, (C) I
Page 57 and 58: eZ80 CPU User Manual 49 INC qq Incr
Page 59 and 60: eZ80 CPU User Manual 51 IND Input a
Page 61 and 62: eZ80 CPU User Manual 53 IND2R Input
Page 63 and 64: eZ80 CPU User Manual 55 INDMR Input
Page 65 and 66: eZ80 CPU User Manual 57 INI Input a
Page 67 and 68: eZ80 CPU User Manual 59 INI2R Input
Page 69 and 70: eZ80 CPU User Manual 61 INIMR Input
Page 71 and 72: eZ80 CPU User Manual 63 JP (rr) Jum
Page 73: eZ80 CPU User Manual 65 JP cc, Mmn
Page 77 and 78: eZ80 CPU User Manual 69 LD A, MB Lo
Page 79 and 80: eZ80 CPU User Manual 71 LD A, (pp)
Page 81 and 82: eZ80 CPU User Manual 73 LD (HL), tt
Page 83 and 84: eZ80 CPU User Manual 75 Operation D
Page 85 and 86: eZ80 CPU User Manual 77 LD (Mmn), A
Page 87 and 88: eZ80 CPU User Manual 79 LD (pp), A
Page 89 and 90: eZ80 CPU User Manual 81 LD R, A Loa
Page 91 and 92: eZ80 CPU User Manual 83 LD r, r’
Page 93 and 94: eZ80 CPU User Manual 85 LD SP, rr L
Page 95 and 96: eZ80 CPU User Manual 87 LD tt,(ii)
Page 97 and 98: eZ80 CPU User Manual 89 LD (uu), r
Page 99 and 100: eZ80 CPU User Manual 91 LEA tt, IX+
Page 101 and 102: eZ80 CPU User Manual 93 OR A, s Log
Page 103 and 104: eZ80 CPU User Manual 95 OTDM Output
Page 105 and 106: eZ80 CPU User Manual 97 OTDR Output
Page 107 and 108: eZ80 CPU User Manual 99 OTIM Output
Page 109 and 110: eZ80 CPU User Manual 101 OTIR Outpu
Page 111 and 112: eZ80 CPU User Manual 103 OUTD Outpu
Page 113 and 114: eZ80 CPU User Manual 105 OUT (n), A
Page 115 and 116: eZ80 CPU User Manual 107 OUTI Outpu
Page 117 and 118: eZ80 CPU User Manual 109 PEA IX+d P
Page 119 and 120: eZ80 CPU User Manual 111 POP vv Pop
Page 121 and 122: eZ80 CPU User Manual 113 RES b, m R
Page 123 and 124: eZ80 CPU User Manual 115 RET cc Con
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eZ80 CPU User Manual 117 RETN Retur
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eZ80 CPU User Manual 119 RLCA Rotat
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eZ80 CPU User Manual 121 RLD Rotate
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eZ80 CPU User Manual 123 RRA Rotate
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eZ80 CPU User Manual 125 RRC m Rota
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eZ80 CPU User Manual 127 RR m Rotat
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eZ80 CPU User Manual 129 RST n Rest
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eZ80 CPU User Manual 131 SBC HL, ss
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eZ80 CPU User Manual 133 SET b, m S
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eZ80 CPU User Manual 135 SLP Sleep
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eZ80 CPU User Manual 137 SRL m Shif
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eZ80 CPU User Manual 139 SUB A, s S
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eZ80 CPU User Manual 141 TSTIO n Te
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eZ80 CPU User Manual 143 Op Code Ma
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eZ80 CPU User Manual 145 Table 9. O
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eZ80 CPU User Manual 147 Table 11.
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eZ80 CPU User Manual 149 Table 13.
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eZ80 CPU User Manual 151 Index A AD
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eZ80 CPU User Manual 153 IND2, 52 I
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eZ80 CPU User Manual 155 OTI2R, 98
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