;--- test 64bit MOVSX/MOVSXD
ifdef __JWASM__
.x64
.model flat
endif
.data
vb db 0
vw dw 0
vd dd 0
.code
main proc
;--- destination WORD, source BYTE
movsx ax,al
movsx ax,ah
movsx r9w,al
; movsx r9w,ah ;not allowed
movsx r9w,sil
movsx ax,[vb]
movsx r9w,[vb]
movsx ax,byte ptr [ebx]
movsx r9w,byte ptr [ebx]
movsx ax,byte ptr [rbx]
movsx r9w,byte ptr [rbx]
;--- destination DWORD, source BYTE
movsx eax,al
movsx r15d,al
movsx eax,ah
; movsx r15d,ah ;not allowed
movsx r15d,sil
movsx eax,[vb]
movsx r15d,[vb]
movsx eax,byte ptr [ebx]
movsx r15d,byte ptr [ebx]
movsx eax,byte ptr [rbx]
movsx r15d,byte ptr [rbx]
;--- destination DWORD, source WORD
movsx eax,ax
movsx r15d,ax
movsx eax,r9w
movsx r15d,r9w
movsx eax,[vw]
movsx r15d,[vw]
movsx eax,word ptr [ebx]
movsx r15d,word ptr [ebx]
movsx eax,word ptr [rbx]
movsx r15d,word ptr [rbx]
;--- destination QWORD, source BYTE
movsx rax,al
movsx r15,al
; movsx rax,ch ;not allowed
movsx rax,sil
movsx rax,[vb]
movsx r15,[vb]
movsx rax,byte ptr [ebx]
movsx r15,byte ptr [ebx]
movsx rax,byte ptr [rbx]
movsx r15,byte ptr [rbx]
;--- destination QWORD, source WORD
movsx rax,cx
movsx r15,cx
movsx rax,r8w
movsx r15,r8w
movsx rax,[vw]
movsx r15,[vw]
movsx rax,word ptr [ebx]
movsx r15,word ptr [ebx]
movsx rax,word ptr [rbx]
movsx r15,word ptr [rbx]
;--- destination QWORD, source DWORD
; movsx rax,eax ;rejected
movsxd rax,ecx
movsxd r15,ecx
movsxd rax,r8d
movsxd r15,r8d
movsxd rax,[vd]
movsxd r15,[vd]
movsxd rax,dword ptr [ebx]
movsxd r15,dword ptr [ebx]
movsxd rax,dword ptr [rbx]
movsxd r15,dword ptr [rbx]
ret
main endp
END