Appendix A. JWasm Reserved Words
Reserved Words are case-insensitive. Besides the items listed below all
instruction mnemonics are also Reserved Words.
Registers 16- and 32-bit Modes
| 8-bit registers |
AL |
CL |
DL |
BL |
AH |
CH |
DH |
BH |
| 16-bit registers |
AX |
CX |
DX |
BX |
SP |
BP |
SI |
DI |
| 32-bit registers |
EAX |
ECX |
EDX |
EBX |
ESP |
EBP |
ESI |
EDI |
| Segment registers |
ES |
CS |
SS |
DS |
FS |
GS |
|
|
| Floating-point registers |
ST |
ST(1) |
ST(2) |
ST(3) |
ST(4) |
ST(5) |
ST(6) |
ST(7) |
| MMX registers |
MM0 |
MM1 |
MM2 |
MM3 |
MM4 |
MM5 |
MM6 |
MM7 |
| SSE registers |
XMM0 |
XMM1 |
XMM2 |
XMM3 |
XMM4 |
XMM5 |
XMM6 |
XMM7 |
| AVX registers |
YMM0 |
YMM1 |
YMM2 |
YMM3 |
YMM4 |
YMM5 |
YMM6 |
YMM7 |
| Control registers |
CR0 |
|
CR2 |
CR3 |
CR4 |
|
|
|
| Debug registers |
DR0 |
DR1 |
DR2 |
DR3 |
|
|
DR6 |
DR7 |
| Test registers[1] |
|
|
|
TR3 |
TR4 |
TR5 |
TR6 |
TR7 |
|
[1]: invalid in 64-bit mode.
Additional Registers in 64-bit Mode
| 8-bit registers |
|
|
|
|
SPL |
BPL |
SIL |
DIL |
|
R8B |
R9B |
R10B |
R11B |
R12B |
R13B |
R14B |
R15B |
| 16-bit registers |
R8W |
R9W |
R10W |
R11W |
R12W |
R13W |
R14W |
R15W |
| 32-bit registers |
R8D |
R9D |
R10D |
R11D |
R12D |
R13D |
R14D |
R15D |
| 64-bit registers |
RAX |
RCX |
RDX |
RBX |
RSP |
RBP |
RSI |
RDI |
|
R8 |
R9 |
R10 |
R11 |
R12 |
R13 |
R14 |
R15 |
| SSE registers |
XMM8 |
XMM9 |
XMM10 |
XMM11 |
XMM12 |
XMM13 |
XMM14 |
XMM15 |
| AVX registers |
YMM8 |
YMM9 |
YMM10 |
YMM11 |
YMM12 |
YMM13 |
YMM14 |
YMM15 |
| Control registers |
CR8 |
|
|
|
|
|
|
|
|
Types
| BYTE |
| SBYTE |
| WORD |
| SWORD |
| DWORD |
| SDWORD |
| REAL4 |
| FWORD |
| QWORD |
| SQWORD |
| REAL8 |
| TBYTE |
| REAL10 |
| OWORD |
| YMMWORD |
| NEAR |
| FAR |
| NEAR16 |
| NEAR32 |
| FAR16 |
| FAR32 |
| MMWORD |
| XMMWORD |
|
Unary Operators
| .TYPE |
| HIGH |
| HIGH32 |
| HIGHWORD |
| IMAGEREL[1] |
| LENGTH |
| LENGTHOF |
| LOW |
| LOW32 |
| LOWWORD |
| LROFFSET |
| MASK |
| OFFSET |
| OPATTR |
| SECTIONREL[1] |
| SEG |
| SHORT |
| SIZE |
| SIZEOF |
| THIS |
| TYPE |
| WIDTH |
|
[1]: not for OMF output format.
Binary Operators
| EQ |
| NE |
| GE |
| GT |
| LE |
| LT |
| MOD |
| PTR |
| DUP |
| SHL[1] |
| SHR[1] |
| AND[1] |
| OR[1] |
| XOR[1] |
|
[1]: these keywords are also instructions.
Directives
| .8086 |
| .186 |
| .286 |
| .286C |
| .286P |
| .386 |
| .386C |
| .386P |
| .486 |
| .486P |
| .586 |
| .586P |
| .686 |
| .686P |
| .K3D |
| .MMX |
| .XMM |
| .X64 |
| .X64P |
| .8087 |
| .287 |
| .387 |
| .NO87 |
| .CREF |
| .LIST |
| .LISTALL |
| .LISTIF, .LFCOND |
| .NOCREF, .XCREF |
| .NOLIST, .XLIST |
| .NOLISTIF, .SFCOND |
| .TFCOND |
| PAGE |
| SUBTITLE, SUBTTL |
| TITLE |
| .LISTMACRO, .XALL |
| .LISTMACROALL, .LALL |
| .NOLISTMACRO, .SALL |
| .ALPHA |
| .DOSSEG, DOSSEG |
| .SEQ |
| .CODE |
| .STACK |
| .DATA |
| .DATA? |
| .FARDATA |
| .FARDATA? |
| .CONST |
| .IF |
| .REPEAT |
| .WHILE |
| .BREAK |
| .CONTINUE |
| .ELSE |
| .ELSEIF |
| .ENDIF |
| .ENDW |
| .UNTIL |
| .UNTILCXZ |
| .EXIT |
| .STARTUP |
| .MODEL |
| .RADIX |
| .SAFESEH |
| .ERR |
| .ERR1 |
| .ERR2 |
| .ERRE |
| .ERRNZ |
| .ERRDIF |
| .ERRDIFI |
| .ERRIDN |
| .ERRIDNI |
| .ERRB |
| .ERRNB |
| .ERRDEF |
| .ERRNDEF |
| COMMENT |
| IF |
| IFE |
| IF1 |
| IF2 |
| IFDIF |
| IFDIFI |
| IFIDN |
| IFIDNI |
| IFB |
| IFNB |
| IFDEF |
| IFNDEF |
| ELSE |
| ELSEIF |
| ELSEIFE |
| ELSEIF1 |
| ELSEIF2 |
| ELSEIFDIF |
| ELSEIFDIFI |
| ELSEIFIDN |
| ELSEIFIDNI |
| ELSEIFB |
| ELSEIFNB |
| ELSEIFDEF |
| ELSEIFNDEF |
| ENDIF |
| FOR, IRP |
| FORC, IRPC |
| REPEAT, REPT |
| WHILE |
| MACRO |
| EXITM |
| ENDM |
| GOTO |
| PURGE |
| INCLUDE |
| TEXTEQU |
| CATSTR |
| SUBSTR |
| INSTR |
| SIZESTR |
| DB |
| DW |
| DD |
| DF |
| DQ |
| DT |
| STRUCT, STRUC |
| UNION |
| TYPEDEF |
| RECORD |
| COMM |
| EXTERN, EXTRN |
| EXTERNDEF |
| PUBLIC |
| PROTO |
| PROC |
| ENDP |
| LOCAL |
| LABEL |
| INVOKE |
| ORG |
| ALIGN |
| EVEN |
| SEGMENT |
| ENDS |
| GROUP |
| ASSUME |
| ALIAS |
| ECHO, %OUT |
| END |
| EQU |
| INCBIN |
| INCLUDELIB |
| NAME |
| OPTION |
| POPCONTEXT |
| PUSHCONTEXT |
|
Additional Directives in 64-bit Mode
| .ALLOCSTACK |
| .ENDPROLOG |
| .PUSHFRAME |
| .PUSHREG |
| .SAVEREG |
| .SAVEXMM128 |
| .SETFRAME |
|
Other Reserved Words
| ADDR |
| FLAT |
| VARARG |
| FRAME[1] |
| C |
| SYSCALL[2] |
| STDCALL |
| PASCAL |
| FORTRAN |
| BASIC |
| FASTCALL |
|
[1]: in 64-bit mode only.
[2]: in 64-bit, calling convention SYSCALL is renamed to SYSCALL_, since
in this mode there exists a SYSCALL instruction.