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John's Home Page PC Now 386 Programming Model

386 Register Set
 "General" Registers  
EAX
  AX
AH (4) AL (0)
0 Accumulator
ECX
  CX
CH (5) CL (1)
1 Counter
EDX
  DX
DH (6) DL (2)
2 Data
EBX
  BX
BH (7) BL (3)
3 Base
ESP
  SP
4 Stack Pointer
EBP
  BP
5 Base Pointer
ESI
  SI
6 Source Index
EDI
  DI
7 Destination Index
 Segment Registers  
ES
 
0 Extra Segment
CS
 
1 Code Segment
SS
 
2 Stack Segment
DS
 
3 Data Segment
FS
 
F Segment
GS
 
G Segment
 Program Registers  
EIP
  IP
Instruction Pointer
EF
  F
Flags
Memory Space
232-1
 
0
I/O Space
216-1
 
0
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