參數(shù)資料
型號: TS68020VR16
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: HCMOS 32-bit Virtual Memory Microprocessor
中文描述: 32-BIT, 16.67 MHz, MICROPROCESSOR, CPGA114
封裝: CERAMIC, PGA-114
文件頁數(shù): 26/45頁
文件大?。?/td> 1256K
代理商: TS68020VR16
26
TS68020
2115A–HIREL–07/02
The 18 addressing modes, shown in Table 8, include nine basic types:
Register Direct
Register Indirect
Register Indirect with Index
Memory Indirect
Program Counter Indirect with Displacement
Program Counter Indirect with Index
Program Counter Memory Indirect
Absolute
Immediate
The register indirect addressing modes support postincrement, predecrement, offset,
and indexing. Programmers find these capabilities particularly useful for handling
advanced data structures common to sophisticated applications and high level lan-
guages. The program counter relative mode also has index and offset capabilities;
programmers find that this addressing mode is required to support position-independent
software. In addition to these addressing modes, the TS68020 provides data operand
sizing and scaling; these features provide performance enhancements to the
programmer.
.
Table 8.
TS68020 Addressing Modes
Addressing Modes
Syntax
Register Direct
Data Register Direct
Address Register Direct
Dn
An
Register Indirect
Address Register Indirect
Address Register Indirect with Post Increment
Address Register Indirect with Predecrement
Address Register Indirect with Displacement
(An)
(An) +
– (An)
(d
16
An)
Register Indirect with Index
Address Register Indirect with Index (8-bit Displacement)
Address Register Indirect with Index (Base Displacement)
(d
8
, An, Xn)
(bd, An, Xn)
Memory Indirect
Memory Indirect Post-Indexed
Memory Indirect Pre-Indexed
([bd, An], Xn, od)
([bd, An, Xn], od)
Program Counter Indirect with Displacement
(d
16
, PC)
Program Counter Indirect with Index
PC Indirect with Index (8-bit Displacement)
PC Indirect with Index (Base Displacement)
(d
8
, PC, Xn)
(bd, PC, Xn)
Program Counter Memory Indirect
PC Memory Indirect Post-Indexed
PC Memory Indirect Pre-Indexed
([bd, PC], Xn, od)
([bd, PC, Xn]), od)
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