參數(shù)資料
型號： MCF5407FT162
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 162 MHz, RISC PROCESSOR, PQFP208
封裝： 28 X 28 MM, 0.50 MM PITCH, PLASTIC, FQFP-208
文件頁數(shù)： 13/35頁
文件大?。?/td> 441K
代理商： MCF5407FT162
20
MCF5407 Integrated ColdFire Microprocessor Product Brief
MOTOROLA
Programming Model, Addressing Modes, and Instruction Set
instruction set opcodes, supported operation sizes, and assembler syntax. For two-operand instructions, the
first operand in the syntax is generally the source operand, and the second operand is the destination.
Because the ColdFire architecture provides an upgrade path for 68K customers, its instruction set supports
most of the common 68K opcodes. A majority of the instructions are binary compatible or optimized 68K
opcodes. This feature, when coupled with the code conversion tools from third-party developers, generally
minimizes software porting issues for customers with 68K applications.
The following list summarizes new and enhanced instructions of Revision B ISA:
New instructions:
— INTOUCH loads blocks of instructions to be locked in the instruction cache
— MOV3Q.L moves 3-bit immediate data to destination location
— MVS.{B,W} sign-extends the source operand and moves it to destination register
— MVZ.{B,W} zero-fills the source operand and moves it to destination register
— SATS.L updates bit 31 of destination register depending on CCR overflow bit
— TAS.B tests and set byte operand being addressed.
Enhancements to existing Revision A instructions:
— Longword support for branch instructions (Bcc, BRA, BSR)
— Byte and word support for compare instructions (CMP, CMPI)
— Byte and longword support for MOVE.x where the source is of type #<data> and the
destination is of type d16(Ax); that is, move.b #<data>, d16(Ax)
Table 8 lists the new and enhanced instructions.
Table 8. ColdFire ISA B Extension Summary
Instruction
Mnemonic
Branch Always
bra.l
Branch Conditionally
bcc.l
Branch to Subroutine
bsr.l
Compare
cmp.{b,w}
Compare Immediate
cmpi.{b,w}
Instruction Fetch Touch
intouch
Move 3-Bit Data Quick
mov3q.l
Move Data Source to Destination
move.{b,w}
Move with Sign Extend
mvs.{b,w}
Move with Zero-Fill
mvz.{b,w}
Signed Saturate
sats.l
Test and Set an Operand
tas.b
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