32
CHAPTER 2 CPU
2.4
Linear Addressing
There are two types of linear addressing:
• 24-bit operand specification: Directly specifies a 24-bit address using operands.
• 32-bit register indirect specification: Indirectly specifies the 24 low-order bits of a 32-
bit general-purpose register value as the address
■
24-bit Operand Specification
Figure 2.4-1 shows an example of linear method (24-bit register operand specification). Figure 2.4-2 shows
an example of linear method (32-bit register indirect specification).
Figure 2.4-1 Example of Linear Method (24-bit Register Operand Specification)
Figure 2.4-2 Example of Linear Method (32-bit Register Indirect Specification)
17
12
452D
3456
17452D H
123456 H
JMPP 123456H
Old program counter
New program counter
Next instruction
+ program bank
+ program bank
JMPP 123456H
XXXX
+7
RL1
3A
Old AL
New AL
(The high-order eight bits are ignored.)
MOV A, @RL1+7
240906F9
090700 H
H
H
003A
Содержание MB90390 Series
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Страница 17: ...xiii APPENDIX D List of Interrupt Vectors 690 INDEX 695 ...
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Страница 132: ...104 CHAPTER 5 CLOCKS ...
Страница 152: ...124 CHAPTER 6 CLOCK MODULATOR ...
Страница 210: ...182 CHAPTER 11 TIME BASE TIMER ...
Страница 218: ...190 CHAPTER 12 WATCHDOG TIMER ...
Страница 264: ...236 CHAPTER 14 16 BIT RELOAD TIMER WITH EVENT COUNT FUNCTION ...
Страница 274: ...246 CHAPTER 15 WATCH TIMER ...
Страница 306: ...278 CHAPTER 17 DTP EXTERNAL INTERRUPTS ...
Страница 338: ...310 CHAPTER 18 8 10 BIT A D CONVERTER ...
Страница 364: ...336 CHAPTER 19 UART0 UART1 ...
Страница 398: ...370 CHAPTER 20 UART2 UART3 Figure 20 5 2 ORE Set Timing Receive data RDRF ORE ...
Страница 432: ...404 CHAPTER 20 UART2 UART3 ...
Страница 482: ...454 CHAPTER 22 SERIAL I O ...
Страница 560: ...532 CHAPTER 24 STEPPING MOTOR CONTROLLER ...
Страница 582: ...554 CHAPTER 27 ROM MIRRORING MODULE ...
Страница 632: ...604 CHAPTER 29 EXAMPLES OF SERIAL PROGRAMMING CONNECTION ...
Страница 722: ...694 APPENDIX ...
Страница 723: ...695 INDEX The index follows on the next page This is listed in alphabetic order ...
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