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Download PPC440 Processor User's Manual
Transcript
440 – PPC440 Processor Revision 1.09 – March 13, 2008 stb Preliminary User’s Manual Store Byte stb Store Byte stb RS, D(RA) 38 0 RS 6 RA 11 D 16 31 EA ← (RA|0) + EXTS(D) MS(EA, 1) ← (RS)24:31 An effective address (EA) is formed by adding a displacement to a base address. The displacement is obtained by sign-extending the 16-bit D field to 32 bits. The base address is 0 when the RA field is 0, and is the contents of register RA otherwise. The least significant byte of register RS is stored into the byte at the EA. Registers Altered • None 364 AMCC Proprietary
