Zilog Z16F2810 Manuel d'utilisateur Page 72
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Noté. / 5. Basé sur avis des utilisateurs
Instruction Opcodes UM018809-0611
56
ZNEO
®
CPU Core
User Manual
Table 18 lists instructions by opcode. Unimplemented opcodes are shaded in grey.
Table 17. Operand Symbols
Operand Abbreviation Meaning
addr16, addr32 16- or 32-bit direct address.
cc4 4-bit condition code.
imm32 Immediate destination-sized operand with the specified number of bits.
uimm8 Unsigned immediate short operand with the specified number of bits.
simm16 Signed immediate short operand with the specified number of bits.
mask Register mask (list of ALU registers).
vector8 8-bit vector number.
Rs Source register name.
Rd Destination register name.
src Source operand.
dst Destination operand.
soff14, soff13, soff6 Signed indirect address (pointer) offset.
rel Relative jump offset.
Table 18. ZNEO CPU Instructions Listed by Opcode
Opcode Format Instruction, Operands Description
0000 0000 0000 0000 BRK Debugger Break.
0000 0000 0000 0001 UNLINK Unlink Frame
(LD R15, R14; POP R14).
0000 0000 0000 0010 PUSHF Push Flags Register .
0000 0000 0000 0011 POPF Pop Flags Register.
0000 0000 0000 0100 ATM Disable Interrupts and DMA during next three
instructions.
0000 0000 0000 0101 NOFLAGS Disable write to FLAGS on next instruction.
0000 0000 0000 0110 — Unimplemented
0000 0000 0000 0111 — Extend prefix used to select extended function
for next ADD, SUB, CP, CPZ, SRR, SRA, SLL,
or UDIV instruction.
0000 0000 0000 1xxx — Unimplemented
0000 0000 0001 xxxx — Unimplemented
- CPU Core 1
- UM018809-0611 2
- Revision History 3
- Table of Contents 5
- List of Figures 9
- CPU Core 10
- User Manual 10
- List of Tables 11
- Manual Objectives 13
- Manual Conventions 14
- Bit Numbering 15
- Brackets 15
- Safeguards 16
- Architectural Overview 17
- Program Control 18
- Processor Block Diagram 18
- Fetch Unit 19
- Execution Unit 20
- Instruction Cycle Time 21
- Execution Cycles 22
- Control Registers 24
- Stack Pointer Overflow 25
- Flags Register (FLAGS) 25
- Carry Flag 26
- Zero Flag 26
- Sign Flag 26
- Overflow Flag 26
- Blank Flag 27
- User Flag 27
- Master Interrupt Enable Flag 27
- Condition Codes 27
- CPU Control Register (CPUCTL) 29
- Address Space 31
- Memory Map 32
- Internal Nonvolatile Memory 33
- Internal RAM 33
- I/O Memory 34
- External Memory 34
- Endianness 35
- Bus Widths 35
- LOOP: SUB R5, R7 ;Subtract 37
- ZNEO CPU Instruction Classes 38
- Operand Addressing 43
- Immediate Data 44
- Register Addressing 44
- Direct Memory Addressing 45
- Memory Data Size 46
- Resizing Data 47
- LD.UB R10, 4(R12) 48
- LD.UB R10,4(R12) 49
- Using the Stack Pointer (R15) 52
- Bit Manipulation 53
- Setting Bits (Masked OR) 54
- Testing Bits (TM and TCM) 54
- Jump Addressing 55
- 8 –128 to +127 56
- Interrupts 57
- Interrupt Processing 58
- Polled Interrupts 62
- Interrupts UM018809-0611 64
- System Exceptions 65
- Program Counter Overflow 66
- Stack Overflow 66
- Divide-by-Zero 67
- Divide Overflow 67
- Illegal Instruction 68
- Software Traps 69
- Instruction Opcodes 71
- 0000 0000 0010 dddd 73
- Unsigned/Signed extension 73
- 1111 0000 rrrr rrrr 79
- 1111 0001 rrrr rrrr 79
- 1111 0010 0011 0000 79
- Instruction Set Reference 81
- Miscellaneous Abbreviations 82
- Example Description 83
- R3=16H, R11=20H, Flag C=1 86
- R3=16H, R11=20H, Flag C=0 86
- FFFF_B032H=8BF7_47AFH 99
- FFFF_B032H=0000_0000H 99
- R7=FFFF_B023H, FFFF_B023H=FCH 99
- FFFF_B023H=00H 99
- C, Z, V, B=0 101
- R3=16H, R11=16H, Z=1, C=0 107
- Flags Z=1; C, S, V, B=0 107
- R3=16H, R11=16H, C=1 107
- Flags C, S=1; Z, V, B=0 107
- Flags C, S, B=1; Z, V=0 109
- Flags Z, B=1; C, S, V=0 109
- Flags B=1, C, S, Z, V=0 111
- FFFF_B034H=2EH 113
- R11=xxxx_xx86H 120
- R11=xxxx_xx76H 120
- FP=FFFF_B016H 139
- R11=FFFF_B02BH 139
- R4=0000_0086H, R5=8000_0053H 142
- C=1; Z, V, B=0 144
- No Operation 146
- S=1; Z, V, B=0 164
- R3=16H, R11=20H, C=0 167
- R3=16H, R11=20H, C=1 167
- S, V, B=0 181
- 1. The one-word instruction 186
- R4=FFFF_FFE5H, R5=0000_0005H 197
- Unsigned Multiply 200
- Numerics 207
- Index UM018809-0611 208
- UM018809-0611 Index 209
- Customer Support 215
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