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CHAPTER 16 A86 RESERVED SYMBOLS
$ Current assembly pointer
? Uninitialized memory slot
AAA ASCII adjust addition
AAD ASCII adjust division
AAM ASCII adjust multiply
AAS ASCII adjust subtract
ABS EXTRN specifier
ADC Add with carry
ADD Instruction
ADD4S NEC Instruction
AH Byte register
AL Byte register
AND Instruction/operator
ARPL 286 Prot Instruction
ASSUME Ignored, compatibility
AT SEGMENT specifier
AX Word register
B Byte memory specifier
BH Byte register
BIT Bit-mask operator
BL Byte register
BOUND Instruction
BP Word register
BX Word register
BY Bytes-combine operator
BYTE Byte memory specifier
CALL Instruction
CALL80 NEC Instruction
CBW Convert byte to word
CH Byte register
CL Byte register
CLC Clear carry
CLD Clear direction
CLI Clear interrupt
CLRBIT NEC Instruction
CLTS 286 Prot Instruction
CMC Complement carry
CMP Compare
CMP4S NEC Instruction
CMPS Compare string
CMPSB Compare string byte
CMPSW Compare string word
CODE Segment name
COMMENT Directive
COMMON SEGMENT specifier
CS Segment register
CWD Convert word to dword
CX Word register
16-2
D Dword specifier
DAA Decimal adjust add
DAS Decimal adjust sub
DATA Segment name
DB Define bytes
DD Define dwords
DEC Decrement
DH Byte register
DI Word register
DIV Divide
DL Byte register
DQ Define Qwords
DS Segment register
DT Define Twords
DUP Duplicate operator
DW Define words
DWORD Memory specifier
DX Word register
ELSE Conditional term
ELSEIF Conditional term
END Start specifier
ENDIF Conditional term
ENDP End of procedure
ENDS End of segment
ENTER Instruction
EQ Equals operator
EQU Equate directive
ES Segment register
EVEN Coerce to even address
EXTRN Ignored, compatibility
F Far specifier
F2XM1 87 Instruction
F4X4 IIT-2C87 Instruction
FABS 87 Instruction
FADD 87 Instruction
FADDP 87 Instruction
FAR Far specifier
FBANK IIT-2C87 Instruction
FBLD 87 Instruction
FBSTP 87 Instruction
FCHS 87 Instruction
FCLEX 87 Instruction
FCOM 87 Instruction
FCOMP 87 Instruction
FCOMPP 87 Instruction
FCOS 387 Instruction
16-3
FDECSTP 87 Instruction
FDISI 87 Instruction
FDIV 87 Instruction
FDIVP 87 Instruction
FDIVR 87 Instruction
FDIVRP 87 Instruction
FENI 87 Instruction
FFREE 87 Instruction
FIADD 87 Instruction
FICOM 87 Instruction
FICOMP 87 Instruction
FIDIV 87 Instruction
FIDIVR 87 Instruction
FILD 87 Instruction
FIMUL 87 Instruction
FINCSTP 87 Instruction
FINIT 87 Instruction
FIST 87 Instruction
FISTP 87 Instruction
FISUB 87 Instruction
FISUBR 87 Instruction
FLD 87 Instruction
FLD1 87 Instruction
FLDCW 87 Instruction
FLDENV 87 Instruction
FLDL2E 87 Instruction
FLDL2T 87 Instruction
FLDLG2 87 Instruction
FLDLN2 87 Instruction
FLDPI 87 Instruction
FLDZ 87 Instruction
FMUL 87 Instruction
FMULP 87 Instruction
FNCLEX 87 Instruction
FNDISI 87 Instruction
FNENI 87 Instruction
FNINIT 87 Instruction
FNOP 87 Instruction
FNSAVE 87 Instruction
FNSTCW 87 Instruction
FNSTENV 87 Instruction
FNSTSW 87 Instruction
FPATAN 87 Instruction
FPREM 87 Instruction
FPREM1 387 Instruction
FPTAN 87 Instruction
FRNDINT 87 Instruction
FRSTOR 87 Instruction
16-4
FSAVE 87 Instruction
FSCALE 87 Instruction
FSETPM 87 Instruction
FSIN 387 Instruction
FSINCOS 387 Instruction
FSQRT 87 Instruction
FST 87 Instruction
FSTCW 87 Instruction
FSTENV 87 Instruction
FSTP 87 Instruction
FSTSW 87 Instruction
FSUB 87 Instruction
FSUBP 87 Instruction
FSUBR 87 Instruction
FSUBRP 87 Instruction
FTST 87 Instruction
FUCOM 387 Instruction
FUCOMP 387 Instruction
FUCOMPP 387 Instruction
FWAIT 87 Instruction
FXAM 87 Instruction
FXCH 87 Instruction
FXTRACT 87 Instruction
FYL2X 87 Instruction
FYL2XP1 87 Instruction
GE Greater/equal operator
GROUP Group of segments
GT Greater than operator
HIGH High byte of word op
HLT Halt
IDIV Integer divide
IF Skip/conditional term
IMUL Integer multiply
IN Input from port
INC Increment
INCLUDE Ignored, compatibility
INS Input string
INSB Input string byte
INSW Input string word
INT Interrupt
INTO Interrupt on overflow
IRET Interrupt return
16-5
JA Jump on above
JAE Jump above equal
JB Jump on below
JBE Jump below equal
JC Jump on carry
JCXZ Jump on CX zero
JE Jump on equal
JG Jump on greater
JGE Jump greater equal
JL Jump on less
JLE Jump less equal
JMP Jump unconditional
JNA Jump not above
JNAE Jump not above equal
JNB Jump not below
JNBE Jump not below equal
JNC Jump not carry
JNE Jump not equal
JNG Jump not greater
JNGE Jump not greater equ
JNL Jump not less
JNLE Jump not less equal
JNO Jump not overflow
JNP Jump not parity
JNS Jump not sign
JNZ Jump not zero
JO Jump overflow
JP Jump parity
JPE Jump parity even
JPO Jump parity odd
JS Jump on sign
JZ Jump on zero
L2E Real constant
L2T Real constant
LABEL Declaration
LAHF Load AH flags
LAR 286 Prot Instruction
LDS Load into DS
LE Less equal operator
LEA Load eff address
LEAVE Instruction
LES Load into ES
LG2 Real constant
LGDT 286 Prot Instruction
LIDT 286 Prot Instruction
LLDT 286 Prot Instruction
LMSW 286 Prot Instruction
LN2 Real constant
16-6
LOCK Instruction
LODBITS NEC Instruction
LODS Load string
LODSB Load string byte
LODSW Load string word
LONG Operator
LOOP Instruction
LOOPE Loop on equal
LOOPNE Loop not equal
LOOPNZ Loop not zero
LOOPZ Loop on zero
LOW Operator
LSL 286 Prot Instruction
LT Less than operator
LTR 286 Prot Instruction
MACRO Directive
MAIN Program strating label
MEMORY Segment specifier
MOD Operator
MOV Instruction
MOVS Move string
MOVSB Move string byte
MOVSW Move string word
MUL Multiply
NAME .OBJ module name
NE Not equals operator
NEAR Operator
NEG Instruction
NIL No code instruction
NOP No operation
NOT Instruction/operator
NOTBIT NEC Instruction
OFFSET Operator
OR Instruction/operator
ORG Directive
OUT Output to port
OUTS Output String
OUTSB Output string byte
OUTSW Output string word
PAGE Ignored, compatibility
PARA Segment specifier
PI Real Constant
POP Instruction
POPA Pop all
POPF Pop flags
PROC Procedure Directive
PTR Ignored, compatibility
PUBLIC Ignored, compatibility
PUSH Instruction
PUSHA Push all
PUSHF Push flags
16-7
Q Qword specifier
QWORD Memory specifier
RADIX Directive
RCL Rotate carry left
RCR Rotate carry right
REP Repeat prefix
REPC NEC Instruction
REPE Repeat while equal
REPNC NEC Instruction
REPNE Repeat not equal
REPNZ Repeat while zero
REPZ Repeat non zero
RET Return
RETF Far Return
ROL Rotate left
ROL4 NEC Instruction
ROR Rotate right
ROR4 NEC Instruction
SAHF Store AH to flags
SAL Shift arith left
SAR Shift arith right
SBB Subtract with borrow
SCAS Scan string
SCASB Scan string byte
SCASW Scan string word
SEG Operator
SEGMENT Directive
SETBIT NEC Instruction
SGDT 286 Prot Instruction
SHL Instruction/operator
SHORT Operator
SHR Instruction/operator
SI Word register
SIDT 286 Prot Instruction
SLDT 286 Prot Instruction
SMSW 286 Prot Instruction
SP Word register
SS Segment register
ST EQU 0 for compatibility
STACK Segment specifier
STC Set carry
STD Set direction
STI Set interrupts
STOBITS NEC Instruction
STOS Store string
STOSB Store string byte
STOSW Store string word
STR 286 Prot Instruction
STRUC Structure directive
SUB Instruction
SUB4S NEC Instruction
SUBTTL Ignored, compatibility
16-8
T Tbyte specifier
TBYTE Memory specifier
TEST Instruction
TESTBIT NEC Instruction
THIS This-location specifier
TITLE Ignored, compatibility
TYPE Operator
VERR 286 Prot Instruction
VERW 286 Prot Instruction
W Word specifier
WAIT Instruction
WORD Word specifier
XCHG Instruction
XLAT Translate byte
XLATB Translate byte
XOR Instruction/operator