release 1.73.19

FASM.TXT

@@ -3250,15 +3250,21 @@ register.
     vscatterdps [eax+xmm1]{k1},xmm0    ; scatter four floats
     vscatterdpd [ymm3*8]{k3},zmm0      ; scatter eight doubles
 
+  The AVX512_4VNNI extension introduces instructions with another unusual
+syntax variant. The first source operand of "vp4dpwssd" or "vp4dpwssds"
+instruction refers to an aligned block of four 512-bit registers, containing
+the base register specified by the operand. This can be indicated by attaching
+"+3" to the name of register, although it is optional.
+
+    vp4dpwssd zmm1{k1}{z},zmm2+3,xword[rbx]
+
 
 2.1.25  Other extensions of instruction set
 
 There is a number of additional instruction set extensions recognized by flat
-assembler, and the general syntax of the instructions introduced by those
-extensions is provided here. For a detailed information on the operations
-performed by them, check out the manuals from Intel (for the VMX, SMX, XSAVE, 
-RDRAND, FSGSBASE, INVPCID, HLE, RTM, and MPX extensions) or AMD (for the SVM 
-extension).
+assembler, and examples of syntax of the instructions introduced by those
+extensions are provided here. For a detailed information on the operations
+performed by them, check out the manuals from Intel or AMD.
   The Virtual-Machine Extensions (VMX) provide a set of instructions for the
 management of virtual machines. The "vmxon" instruction, which enters the VMX
 operation, requires a single 64-bit memory operand, which should be a physical
@@ -3677,8 +3683,8 @@ loads the single byte from offset 10h in file "a.txt" into the "char"
 constant.
   Instead of or in addition to an "at" argument, "virtual" can also be followed
 by an "as" keyword and a string defining an extension of additional file where
-the initialized content of the block is going to be stored at the end of
-a successful assembly.
+the initialized content of the addressing space started by "virtual" is going
+to be stored at the end of a successful assembly.
 
     virtual at 0 as 'asc'
         times 256 db %-1

SOURCE/AVX.INC

@@ -108,6 +108,8 @@ avx_q_instruction:
 	or	[rex_prefix],80h
 	mov	ch,8
 	jmp	avx_pi_instruction
+avx_single_source_d_instruction_38_evex_w1:
+	or	[rex_prefix],8
 avx_single_source_d_instruction_38_evex:
 	or	[vex_required],8
 avx_single_source_d_instruction_38:
@@ -134,6 +136,14 @@ avx_d_instruction_evex:
 avx_d_instruction:
 	mov	ch,4
 	jmp	avx_pi_instruction
+avx_bw_instruction_3a_imm8_w1_evex:
+	or	[rex_prefix],8
+avx_bw_instruction_3a_imm8_evex:
+	mov	[immediate_size],1
+	or	[vex_required],8
+	mov	[supplemental_code],al
+	mov	al,3Ah
+	jmp	avx_bw_instruction
 avx_single_source_bw_instruction_38:
 	or	[operand_flags],2
 avx_bw_instruction_38:
@@ -3099,6 +3109,40 @@ xop_shift_instruction:
 	dec	esi
 	jmp	mmx_imm8
 
+avx512_4vnniw_instruction:
+	mov	[opcode_prefix],0F2h
+	mov	[base_code],0Fh
+	mov	[extended_code],38h
+	mov	[supplemental_code],al
+	mov	[mmx_size],16
+	mov	[broadcast_size],0
+	or	[vex_required],8
+	call	take_avx_register
+	mov	[postbyte_register],al
+	call	take_avx512_mask
+	lods	byte [esi]
+	cmp	al,','
+	jne	invalid_operand
+	call	take_avx_register
+	mov	[vex_register],al
+	cmp	byte [esi],'+'
+	jne	reg4_ok
+	inc	esi
+	cmp	dword [esi],29030128h
+	jne	invalid_operand
+	lods	dword [esi]
+      reg4_ok:
+	cmp	[operand_size],64
+	jne	invalid_operand_size
+	mov	[operand_size],0
+	lods	byte [esi]
+	cmp	al,','
+	jne	invalid_operand
+	call	take_avx_rm
+	jc	invalid_operand
+	mov	[operand_size],64
+	jmp	instruction_ready
+
 set_evex_mode:
 	mov	[evex_mode],al
 	jmp	instruction_assembled

SOURCE/PARSER.INC

@@ -569,6 +569,12 @@ parse_line_contents:
       symbol_argument:
 	pop	edi
 	stos	word [edi]
+	cmp	byte [esi],'+'
+	jne	argument_parsed
+	and	ax,0F0FFh
+	cmp	ax,6010h
+	jne	argument_parsed
+	movs	byte [edi],[esi]
 	jmp	argument_parsed
       operator_argument:
 	pop	edi

SOURCE/TABLES.INC

@@ -1425,6 +1425,10 @@ instructions_5:
  dw while_directive-instruction_handler
  db 'wrmsr',30h
  dw simple_extended_instruction-instruction_handler
+ db 'wrssd',0F6h
+ dw wrssd_instruction-instruction_handler
+ db 'wrssq',0F6h
+ dw wrssq_instruction-instruction_handler
  db 'xlatb',0D7h
  dw simple_instruction-instruction_handler
  db 'xorpd',57h
@@ -1770,6 +1774,10 @@ instructions_6:
  dw rdrand_instruction-instruction_handler
  db 'rdseed',111b
  dw rdrand_instruction-instruction_handler
+ db 'rdsspd',1
+ dw rdsspd_instruction-instruction_handler
+ db 'rdsspq',1
+ dw rdsspq_instruction-instruction_handler
  db 'rdtscp',0F9h
  dw simple_instruction_0f_01-instruction_handler
  db 'repeat',0
@@ -2022,6 +2030,10 @@ instructions_6:
  dw simple_extended_instruction_64bit-instruction_handler
  db 'wrpkru',0EFh
  dw simple_instruction_0f_01-instruction_handler
+ db 'wrussd',0F5h
+ dw wrussd_instruction-instruction_handler
+ db 'wrussq',0F5h
+ dw wrussq_instruction-instruction_handler
  db 'xabort',0
  dw xabort_instruction-instruction_handler
  db 'xbegin',0
@@ -2083,6 +2095,10 @@ instructions_7:
  dw basic_486_instruction-instruction_handler
  db 'display',0
  dw display_directive-instruction_handler
+ db 'endbr32',0FBh
+ dw endbr_instruction-instruction_handler
+ db 'endbr64',0FAh
+ dw endbr_instruction-instruction_handler
  db 'fcmovbe',0D0h
  dw fcmov_instruction-instruction_handler
  db 'fcmovnb',0C0h
@@ -2127,6 +2143,10 @@ instructions_7:
  dw simple_fpu_instruction-instruction_handler
  db 'fyl2xp1',111001b
  dw simple_fpu_instruction-instruction_handler
+ db 'incsspd',5
+ dw incsspd_instruction-instruction_handler
+ db 'incsspq',5
+ dw incsspq_instruction-instruction_handler
  db 'insertq',0
  dw insertq_instruction-instruction_handler
  db 'invlpga',0DFh
@@ -2235,6 +2255,8 @@ instructions_7:
  dw basic_mmx_instruction-instruction_handler
  db 'psubusw',0D9h
  dw basic_mmx_instruction-instruction_handler
+ db 'ptwrite',4
+ dw ptwrite_instruction-instruction_handler
  db 'roundpd',9
  dw sse4_instruction_66_3a_imm8-instruction_handler
  db 'roundps',8
@@ -2449,6 +2471,18 @@ instructions_7:
  dw avx_q_instruction_38_evex-instruction_handler
  db 'vpsadbw',0F6h
  dw avx_bw_instruction-instruction_handler
+ db 'vpshldd',71h
+ dw avx_d_instruction_3a_imm8_evex-instruction_handler
+ db 'vpshldq',71h
+ dw avx_q_instruction_3a_imm8_evex-instruction_handler
+ db 'vpshldw',70h
+ dw avx_bw_instruction_3a_imm8_w1_evex-instruction_handler
+ db 'vpshrdd',73h
+ dw avx_d_instruction_3a_imm8_evex-instruction_handler
+ db 'vpshrdq',73h
+ dw avx_q_instruction_3a_imm8_evex-instruction_handler
+ db 'vpshrdw',72h
+ dw avx_bw_instruction_3a_imm8_w1_evex-instruction_handler
  db 'vpshufb',0
  dw avx_bw_instruction_38-instruction_handler
  db 'vpshufd',70h
@@ -2516,6 +2550,8 @@ instructions_8:
  dw sse4_instruction_66_38_xmm0-instruction_handler
  db 'cldemote',0
  dw cldemote_instruction-instruction_handler
+ db 'clrssbsy',6
+ dw clrssbsy_instruction-instruction_handler
  db 'cmpneqpd',4
  dw cmp_pd_instruction-instruction_handler
  db 'cmpneqps',4
@@ -2684,6 +2720,10 @@ instructions_8:
  dw rdfsbase_instruction-instruction_handler
  db 'rdgsbase',1
  dw rdfsbase_instruction-instruction_handler
+ db 'rstorssp',5
+ dw rstorssp_instruction-instruction_handler
+ db 'setssbsy',0E8h
+ dw setssbsy_instruction-instruction_handler
  db 'sha1msg1',0C9h
  dw sse4_instruction_38-instruction_handler
  db 'sha1msg2',0CAh
@@ -2866,6 +2906,10 @@ instructions_8:
  dw xop_pcom_q_instruction-instruction_handler
  db 'vpcomltw',0
  dw xop_pcom_w_instruction-instruction_handler
+ db 'vpdpbusd',50h
+ dw avx_d_instruction_38_evex-instruction_handler
+ db 'vpdpwssd',52h
+ dw avx_d_instruction_38_evex-instruction_handler
  db 'vpermi2b',75h
  dw avx_bw_instruction_38_evex-instruction_handler
  db 'vpermi2d',76h
@@ -2948,6 +2992,26 @@ instructions_8:
  dw avx_bw_instruction-instruction_handler
  db 'vpmuludq',0F4h
  dw avx_q_instruction-instruction_handler
+ db 'vpopcntb',54h
+ dw avx_single_source_d_instruction_38_evex-instruction_handler
+ db 'vpopcntd',55h
+ dw avx512_single_source_ps_instruction-instruction_handler
+ db 'vpopcntq',55h
+ dw avx512_single_source_pd_instruction-instruction_handler
+ db 'vpopcntw',54h
+ dw avx_single_source_d_instruction_38_evex_w1-instruction_handler
+ db 'vpshldvd',71h
+ dw avx_d_instruction_38_evex-instruction_handler
+ db 'vpshldvq',71h
+ dw avx_q_instruction_38_evex-instruction_handler
+ db 'vpshldvw',70h
+ dw avx_bw_instruction_38_w1_evex-instruction_handler
+ db 'vpshrdvd',73h
+ dw avx_d_instruction_38_evex-instruction_handler
+ db 'vpshrdvq',73h
+ dw avx_q_instruction_38_evex-instruction_handler
+ db 'vpshrdvw',72
+ dw avx_bw_instruction_38_w1_evex-instruction_handler
  db 'vpshufhw',0F3h
  dw avx_pshuf_w_instruction-instruction_handler
  db 'vpshuflw',0F2h
@@ -3180,7 +3244,7 @@ instructions_9:
  db 'vcvtss2si',2Dh
  dw avx_cvtss2si_instruction-instruction_handler
  db 'vdbpsadbw',42h
- dw avx_d_instruction_3a_imm8_evex-instruction_handler
+ dw avx_bw_instruction_3a_imm8_evex-instruction_handler
  db 'vexpandpd',88h
  dw avx_single_source_q_instruction_38_evex-instruction_handler
  db 'vexpandps',88h
@@ -3231,6 +3295,8 @@ instructions_9:
  dw avx_movshdup_instruction-instruction_handler
  db 'vmovsldup',12h
  dw avx_movshdup_instruction-instruction_handler
+ db 'vp4dpwssd',52h
+ dw avx512_4vnniw_instruction-instruction_handler
  db 'vpackssdw',6Bh
  dw avx_d_instruction-instruction_handler
  db 'vpacksswb',63h
@@ -3337,6 +3403,10 @@ instructions_9:
  dw xop_pcom_q_instruction-instruction_handler
  db 'vpcomneqw',5
  dw xop_pcom_w_instruction-instruction_handler
+ db 'vpdpbusds',51h
+ dw avx_d_instruction_38_evex-instruction_handler
+ db 'vpdpwssds',53h
+ dw avx_d_instruction_38_evex-instruction_handler
  db 'vpermi2pd',77h
  dw avx_q_instruction_38_evex-instruction_handler
  db 'vpermi2ps',77h
@@ -3349,10 +3419,14 @@ instructions_9:
  dw avx_q_instruction_38_evex-instruction_handler
  db 'vpermt2ps',7Fh
  dw avx_d_instruction_38_evex-instruction_handler
+ db 'vpexpandb',62h
+ dw avx_single_source_d_instruction_38_evex-instruction_handler
  db 'vpexpandd',89h
  dw avx_single_source_d_instruction_38_evex-instruction_handler
  db 'vpexpandq',89h
  dw avx_single_source_q_instruction_38_evex-instruction_handler
+ db 'vpexpandw',62h
+ dw avx_single_source_q_instruction_38_evex-instruction_handler
  db 'vphaddubd',0D2h
  dw xop_single_source_128bit_instruction-instruction_handler
  db 'vphaddubq',0D3h
@@ -3566,6 +3640,8 @@ instructions_10:
  dw avx_maskmov_instruction-instruction_handler
  db 'vmaskmovps',2Ch
  dw avx_maskmov_instruction-instruction_handler
+ db 'vp4dpwssds',53h
+ dw avx512_4vnniw_instruction-instruction_handler
  db 'vpclmulqdq',-1
  dw avx_pclmulqdq_instruction-instruction_handler
  db 'vpcmpestri',61h
@@ -3697,6 +3773,8 @@ instructions_11:
  dw prefetch_instruction-instruction_handler
  db 'prefetchwt1',2
  dw amd_prefetch_instruction-instruction_handler
+ db 'saveprevssp',0EAh
+ dw setssbsy_instruction-instruction_handler
  db 'sha256rnds2',0CBh
  dw sse4_instruction_38_xmm0-instruction_handler
  db 'vaesdeclast',0DFh
@@ -3877,10 +3955,14 @@ instructions_11:
  dw xop_pcom_q_instruction-instruction_handler
  db 'vpcomfalsew',6
  dw xop_pcom_w_instruction-instruction_handler
+ db 'vpcompressb',63h
+ dw avx_compress_d_instruction-instruction_handler
  db 'vpcompressd',8Bh
  dw avx_compress_d_instruction-instruction_handler
  db 'vpcompressq',8Bh
  dw avx_compress_q_instruction-instruction_handler
+ db 'vpcompressw',63h
+ dw avx_compress_q_instruction-instruction_handler
  db 'vpcomtrueub',7
  dw xop_pcom_ub_instruction-instruction_handler
  db 'vpcomtrueud',7
@@ -4096,6 +4178,8 @@ instructions_12:
  dw vpermil_2pd_instruction-instruction_handler
  db 'vpermiltd2ps',0
  dw vpermil_2ps_instruction-instruction_handler
+ db 'vpshufbitqmb',8Fh
+ dw avx512_ptestmb_instruction-instruction_handler
 instructions_13:
  db 'gf2p8affineqb',0CEh
  dw sse4_instruction_66_3a_imm8-instruction_handler

SOURCE/VERSION.INC

@@ -33,7 +33,7 @@
 ; cannot simply be copied and put under another distribution licence
 ; (including the GNU Public Licence).
 
-VERSION_STRING equ "1.73.18"
+VERSION_STRING equ "1.73.19"
 
 VERSION_MAJOR = 1
 VERSION_MINOR = 73

SOURCE/X86_64.INC

@@ -3721,8 +3721,8 @@ basic_486_instruction:
 	cmp	al,','
 	jne	invalid_operand
 	call	take_register
-	mov	bl,[postbyte_register]
-	mov	[postbyte_register],al
+	mov	al,bl
+	xchg	bl,[postbyte_register]
 	mov	al,ah
 	cmp	al,1
 	je	basic_486_reg_reg_8bit
@@ -5899,6 +5899,45 @@ rdpid_instruction:
 	cmp	ah,8
 	jne	invalid_operand_size
 	jmp	nomem_instruction_ready
+ptwrite_instruction:
+	mov	[base_code],0Fh
+	mov	[extended_code],0AEh
+	mov	[postbyte_register],al
+	mov	[opcode_prefix],0F3h
+	lods	byte [esi]
+	call	get_size_operator
+	cmp	al,10h
+	je	ptwrite_reg
+      ptwrite_mem:
+	cmp	al,'['
+	jne	invalid_operand
+	call	get_address
+	mov	al,[operand_size]
+	cmp	al,4
+	je	ptwrite_mem_store
+	cmp	al,8
+	je	ptwrite_mem_64bit
+	or	al,al
+	jnz	invalid_operand_size
+	call	recoverable_unknown_size
+	jmp	ptwrite_mem_store
+      ptwrite_mem_64bit:
+	call	operand_64bit
+      ptwrite_mem_store:
+	mov	al,[operand_size]
+	call	operand_autodetect
+	jmp	instruction_ready
+      ptwrite_reg:
+	lods	byte [esi]
+	call	convert_register
+	mov	bl,al
+	mov	al,ah
+	cmp	al,4
+	je	nomem_instruction_ready
+	cmp	al,8
+	jne	invalid_operand_size
+	call	operand_64bit
+	jmp	nomem_instruction_ready
 
 vmclear_instruction:
 	mov	[opcode_prefix],66h
@@ -6451,6 +6490,106 @@ movdir64b_instruction:
 	jne	invalid_operand_size
 	jmp	instruction_assembled
 
+setssbsy_instruction:
+	shl	eax,24
+	or	eax,010FF3h
+	stos	dword [edi]
+	jmp	instruction_assembled
+rstorssp_instruction:
+	mov	ah,1
+	jmp	setup_clrssbsy
+clrssbsy_instruction:
+	mov	ah,0AEh
+      setup_clrssbsy:
+	mov	[base_code],0Fh
+	mov	[extended_code],ah
+	mov	[postbyte_register],al
+	mov	[opcode_prefix],0F3h
+	lods	byte [esi]
+	call	get_size_operator
+	cmp	al,'['
+	jne	invalid_operand
+	call	get_address
+	test	[operand_size],not 8
+	jnz	invalid_operand_size
+	jmp	instruction_ready
+rdsspq_instruction:
+	mov	[rex_prefix],48h
+rdsspd_instruction:
+	mov	ah,1Eh
+	jmp	setup_incssp
+incsspq_instruction:
+	mov	[rex_prefix],48h
+incsspd_instruction:
+	mov	ah,0AEh
+      setup_incssp:
+	mov	[base_code],0Fh
+	mov	[extended_code],ah
+	mov	[postbyte_register],al
+	mov	[opcode_prefix],0F3h
+	lods	byte [esi]
+	call	get_size_operator
+	cmp	al,10h
+	jne	invalid_operand
+	lods	byte [esi]
+	call	convert_register
+	mov	bl,al
+	call	cet_size_check
+	jmp	nomem_instruction_ready
+      cet_size_check:
+	cmp	[rex_prefix],0
+	je	cet_dword
+	cmp	[code_type],64
+	jne	illegal_instruction
+	shr	ah,1
+      cet_dword:
+	cmp	ah,4
+	jne	invalid_operand_size
+	ret
+wrussq_instruction:
+	mov	[opcode_prefix],66h
+wrssq_instruction:
+	mov	[rex_prefix],48h
+	jmp	wrssd_instruction
+wrussd_instruction:
+	mov	[opcode_prefix],66h
+wrssd_instruction:
+	mov	[base_code],0Fh
+	mov	[extended_code],38h
+	mov	[supplemental_code],al
+	lods	byte [esi]
+	call	get_size_operator
+	cmp	al,10h
+	je	wrss_reg
+	cmp	al,'['
+	jne	invalid_operand
+	call	get_address
+	push	edx ebx ecx
+	lods	byte [esi]
+	cmp	al,','
+	jne	invalid_operand
+	call	take_register
+	mov	[postbyte_register],al
+	pop	ecx ebx edx
+	call	cet_size_check
+	jmp	instruction_ready
+      wrss_reg:
+	lods	byte [esi]
+	call	convert_register
+	mov	[postbyte_register],al
+	lods	byte [esi]
+	cmp	al,','
+	jne	invalid_operand
+	call	take_register
+	mov	bl,al
+	xchg	bl,[postbyte_register]
+	call	cet_size_check
+	jmp	nomem_instruction_ready
+endbr_instruction:
+	shl	eax,24
+	or	eax,1E0FF3h
+	stos	dword [edi]
+	jmp	instruction_assembled
 
 take_register:
 	lods	byte [esi]

WHATSNEW.TXT

@@ -2,6 +2,16 @@
 Visit http://flatassembler.net/ for more information.
 
 
+version 1.73.19 (Nov 27, 2019)
+
+[+] Added AVX512_BITALG, AVX512_VPOPCNTDQ, AVX512_VBMI2, AVX512_VNNI
+    and AVX512_4VNNIW instruction sets.
+
+[+] Added CET_SS and CET_IBT instruction sets.
+
+[+] Added "ptwrite" instruction.
+
+
 version 1.73.18 (Nov 13, 2019)
 
 [-] Addresses prefixed with "fs:" or "gs:" are no longer RIP-relative by default.