bs3-cpu-basic-3-high-asm.asm

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1	; $Id: bs3-cpu-basic-3-high-asm.asm 106061 2024-09-16 14:03:52Z vboxsync $
2	;; @file
3	; BS3Kit - bs3-cpu-basic-3-high - Assembly code.
4	;
5
6	;
7	; Copyright (C) 2007-2024 Oracle and/or its affiliates.
8	;
9	; This file is part of VirtualBox base platform packages, as
10	; available from https://www.virtualbox.org.
11	;
12	; This program is free software; you can redistribute it and/or
13	; modify it under the terms of the GNU General Public License
14	; as published by the Free Software Foundation, in version 3 of the
15	; License.
16	;
17	; This program is distributed in the hope that it will be useful, but
18	; WITHOUT ANY WARRANTY; without even the implied warranty of
19	; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	; General Public License for more details.
21	;
22	; You should have received a copy of the GNU General Public License
23	; along with this program; if not, see <https://www.gnu.org/licenses>.
24	;
25	; The contents of this file may alternatively be used under the terms
26	; of the Common Development and Distribution License Version 1.0
27	; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28	; in the VirtualBox distribution, in which case the provisions of the
29	; CDDL are applicable instead of those of the GPL.
30	;
31	; You may elect to license modified versions of this file under the
32	; terms and conditions of either the GPL or the CDDL or both.
33	;
34	; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35	;
36
37
38	;*********************************************************************************************************************************
39	;* Header Files *
40	;*********************************************************************************************************************************
41	%include "bs3kit.mac"
42
43
44	;*********************************************************************************************************************************
45	;* Defined Constants And Macros *
46	;*********************************************************************************************************************************
47	%define LEA_RAX 01111111111111110h
48	%define LEA_RCX 02222222222222202h
49	%define LEA_RDX 03333333333333033h
50	%define LEA_RBX 04444444444440444h
51	%define LEA_RSP 058595a5d51525356h
52	%define LEA_RBP 05555555555555551h
53	%define LEA_RSI 06666666666666616h
54	%define LEA_RDI 07777777777777177h
55	%define LEA_R8 08888888888881888h
56	%define LEA_R9 09999999999999992h
57	%define LEA_R10 0aaaaaaaaaaaaaa2ah
58	%define LEA_R11 0bbbbbbbbbbbbb2bbh
59	%define LEA_R12 0cccccccccccc2ccch
60	%define LEA_R13 0ddddddddddddddd3h
61	%define LEA_R14 0eeeeeeeeeeeeee3eh
62	%define LEA_R15 0fffffffffffff3ffh
63
64
65	;*********************************************************************************************************************************
66	;* External Symbols *
67	;*********************************************************************************************************************************
68	extern _Bs3Text16_StartOfSegment
69
70
71	;*********************************************************************************************************************************
72	;* Global Variables *
73	;*********************************************************************************************************************************
74	BS3_BEGIN_DATA64
75
76	;; Place to save esp/rsp when doing LEA variations involving esp/rsp.
77	BS3_GLOBAL_DATA g_bs3CpuBasic3_lea_rsp, 8
78	dq 0
79
80	%ifdef WITH_TRACING
81	BS3_GLOBAL_DATA g_bs3CpuBasic3_lea_trace, 4
82	dd 0
83	%endif
84
85	;
86	; Set up LM64 environment
87	;
88	%define TMPL_MODE BS3_MODE_LM64
89	%include "bs3kit-template-header.mac"
90
91
92	;;
93	; Tests 64-bit addressing using the LEA instruction.
94	;
95	TMPL_BEGIN_TEXT
96	export BS3_CMN_NM(bs3CpuBasic3_lea_64)
97	BS3_PROC_BEGIN_CMN bs3CpuBasic3_lea_64, BS3_PBC_NEAR
98	push rax
99	push rcx
100	push rdx
101	push rbx
102	push rbp
103	push rsi
104	push rdi
105	push r8
106	push r9
107	push r10
108	push r11
109	push r12
110	push r13
111	push r14
112	push r15
113	.test_label:
114	mov [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_rsp))], rsp
115
116	;
117	; We generate all the permutations using a python script, as nasm ends
118	; up consuming >19 GiB of memory running the preprocessor code below.
119	; It also took forever (3+ min).
120	;
121	%if 1
122	%include "bs3-cpu-basic-3-high-lea64.inc"
123	%else
124	;
125	; Loop thru all the modr/m memory encodings.
126	;
127	%assign iMod 0
128	%rep 3
129	%assign iDstReg 0
130	%rep 16
131	%assign iMemReg 0
132	%rep 16
133	%assign iDstReg_Value %sel(iDstReg+1, LEA_RAX, LEA_RCX, LEA_RDX, LEA_RBX, LEA_RSP, LEA_RBP, LEA_RSI, LEA_RDI, \
134	LEA_R8, LEA_R9, LEA_R10, LEA_R11, LEA_R12, LEA_R13, LEA_R14, LEA_R15)
135
136	%if (iMemReg & 7) == 4
137	;
138	; SIB.
139	;
140	%assign iBase 0
141	%rep 16
142	%if (iBase & 7) == 5 && iMod == 0
143	%assign iBase_Value 0
144	%else
145	%assign iBase_Value %sel(iBase+1, LEA_RAX, LEA_RCX, LEA_RDX, LEA_RBX, LEA_RSP, LEA_RBP, LEA_RSI, LEA_RDI, \
146	LEA_R8, LEA_R9, LEA_R10, LEA_R11, LEA_R12, LEA_R13, LEA_R14, LEA_R15)
147	%endif
148
149	%assign iIndex 0
150	%assign cShift 0 ; we don't have enough room for checking all the shifts.
151	%rep 16
152	%assign iIndex_Value %sel(iIndex+1, LEA_RAX, LEA_RCX, LEA_RDX, LEA_RBX, 0, LEA_RBP, LEA_RSI, LEA_RDI, \
153	LEA_R8, LEA_R9, LEA_R10, LEA_R11, LEA_R12, LEA_R13, LEA_R14, LEA_R15)
154
155	;
156	; We don't test all shift combinations, there just isn't enough space
157	; in the image for that.
158	;
159	%assign cShiftLoops 4
160	%rep cShiftLoops
161
162	;
163	; LEA+SIB w/ 64-bit operand size and 64-bit address size.
164	;
165	%ifdef WITH_TRACING
166	mov dword [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_trace))], $
167	%endif
168	call .load_regs
169	%if iBase == 4 \|\| iDstReg == 4
170	mov rsp, LEA_RSP
171	%endif
172
173	; lea
174	%assign iValue iBase_Value + (iIndex_Value << cShift)
175	db X86_OP_REX_W \| ((iBase & 8) >> 3) \| ((iIndex & 8) >> 2) \| ((iDstReg & 8) >> 1)
176	db 8dh, X86_MODRM_MAKE(iMod, iDstReg & 7, iMemReg & 7), X86_SIB_MAKE(iBase & 7, iIndex & 7, cShift)
177	%if iMod == X86_MOD_MEM1
178	db -128
179	%assign iValue iValue - 128
180	%elif iMod == X86_MOD_MEM4 \|\| (iMod == 0 && (iBase & 7) == 5)
181	dd -07ffef3ffh
182	%assign iValue iValue - 07ffef3ffh
183	%endif
184
185	; cmp iDstReg, iValue
186	%if iValue <= 07fffffffh && iValue >= -080000000h
187	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
188	db 81h, X86_MODRM_MAKE(X86_MOD_REG, 7, iDstReg & 7)
189	dd iValue & 0ffffffffh
190	%elif iDstReg != X86_GREG_xAX
191	mov rax, iValue
192	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
193	db 39h, X86_MODRM_MAKE(X86_MOD_REG, X86_GREG_xAX, iDstReg & 7)
194	%else
195	mov rcx, iValue
196	cmp rax, rcx
197	%endif
198	%if iBase == 4 \|\| iDstReg == 4
199	mov rdx, rsp
200	mov rsp, [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_rsp))]
201	%endif
202	jz $+3
203	int3
204
205	;
206	; LEA+SIB w/ 64-bit operand size and 32-bit address size.
207	;
208	%ifdef WITH_TRACING
209	mov dword [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_trace))], $
210	%endif
211	call .load_regs
212	%if iBase == 4 \|\| iDstReg == 4
213	mov rsp, LEA_RSP
214	%endif
215
216	; lea
217	%assign iValue iBase_Value + (iIndex_Value << cShift)
218	db X86_OP_PRF_SIZE_ADDR
219	db X86_OP_REX_W \| ((iBase & 8) >> 3) \| ((iIndex & 8) >> 2) \| ((iDstReg & 8) >> 1)
220	db 8dh, X86_MODRM_MAKE(iMod, iDstReg & 7, iMemReg & 7), X86_SIB_MAKE(iBase & 7, iIndex & 7, cShift)
221	%if iMod == X86_MOD_MEM1
222	db +127
223	%assign iValue iValue + 127
224	%elif iMod == X86_MOD_MEM4 \|\| (iMod == 0 && (iBase & 7) == 5)
225	dd +0356786aeh
226	%assign iValue iValue + 0356786aeh
227	%endif
228	%assign iValue (iValue & 0ffffffffh)
229
230	; cmp iDstReg, iValue
231	%if iValue <= 07fffffffh && iValue >= -080000000h
232	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
233	db 81h, X86_MODRM_MAKE(X86_MOD_REG, 7, iDstReg & 7)
234	dd iValue & 0ffffffffh
235	%elif iDstReg != X86_GREG_xAX
236	mov rax, iValue
237	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
238	db 39h, X86_MODRM_MAKE(X86_MOD_REG, X86_GREG_xAX, iDstReg & 7)
239	%else
240	mov rcx, iValue
241	cmp rax, rcx
242	%endif
243	%if iBase == 4 \|\| iDstReg == 4
244	mov rdx, rsp
245	mov rsp, [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_rsp))]
246	%endif
247	jz $+3
248	int3
249
250	;
251	; LEA+SIB w/ 32-bit operand size and 64-bit address size.
252	;
253	%ifdef WITH_TRACING
254	mov dword [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_trace))], $
255	%endif
256	call .load_regs
257	%if iBase == 4 \|\| iDstReg == 4
258	mov rsp, LEA_RSP
259	%endif
260
261	; lea
262	%assign iValue iBase_Value + (iIndex_Value << cShift)
263	%if (iBase \| iIndex \| iDstReg) & 8
264	db X86_OP_REX \| ((iBase & 8) >> 3) \| ((iIndex & 8) >> 2) \| ((iDstReg & 8) >> 1)
265	%endif
266	db 8dh, X86_MODRM_MAKE(iMod, iDstReg & 7, iMemReg & 7), X86_SIB_MAKE(iBase & 7, iIndex & 7, cShift)
267	%if iMod == X86_MOD_MEM1
268	db -18
269	%assign iValue iValue - 18
270	%elif iMod == X86_MOD_MEM4 \|\| (iMod == 0 && (iBase & 7) == 5)
271	dd -07fef3ffh
272	%assign iValue iValue - 07fef3ffh
273	%endif
274	%assign iValue (iValue & 0ffffffffh)
275
276	; cmp iDstReg, iValue
277	%if iValue <= 07fffffffh && iValue >= -080000000h
278	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
279	db 81h, X86_MODRM_MAKE(X86_MOD_REG, 7, iDstReg & 7)
280	dd iValue & 0ffffffffh
281	%elif iDstReg != X86_GREG_xAX
282	mov rax, iValue
283	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
284	db 39h, X86_MODRM_MAKE(X86_MOD_REG, X86_GREG_xAX, iDstReg & 7)
285	%else
286	mov rcx, iValue
287	cmp rax, rcx
288	%endif
289	%if iBase == 4 \|\| iDstReg == 4
290	mov rdx, rsp
291	mov rsp, [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_rsp))]
292	%endif
293	jz $+3
294	int3
295
296	;
297	; LEA+SIB w/ 32-bit operand size and 32-bit address size.
298	;
299	%ifdef WITH_TRACING
300	mov dword [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_trace))], $
301	%endif
302	call .load_regs
303	%if iBase == 4 \|\| iDstReg == 4
304	mov rsp, LEA_RSP
305	%endif
306
307	; lea
308	%assign iValue iBase_Value + (iIndex_Value << cShift)
309	db X86_OP_PRF_SIZE_ADDR
310	%if (iBase \| iIndex \| iDstReg) & 8
311	db X86_OP_REX \| ((iBase & 8) >> 3) \| ((iIndex & 8) >> 2) \| ((iDstReg & 8) >> 1)
312	%endif
313	db 8dh, X86_MODRM_MAKE(iMod, iDstReg & 7, iMemReg & 7), X86_SIB_MAKE(iBase & 7, iIndex & 7, cShift)
314	%if iMod == X86_MOD_MEM1
315	db +17
316	%assign iValue iValue + 17
317	%elif iMod == X86_MOD_MEM4 \|\| (iMod == 0 && (iBase & 7) == 5)
318	dd +0356786h
319	%assign iValue iValue + 0356786h
320	%endif
321	%assign iValue (iValue & 0ffffffffh)
322
323	; cmp iDstReg, iValue
324	%if iValue <= 07fffffffh && iValue >= -080000000h
325	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
326	db 81h, X86_MODRM_MAKE(X86_MOD_REG, 7, iDstReg & 7)
327	dd iValue & 0ffffffffh
328	%elif iDstReg != X86_GREG_xAX
329	mov rax, iValue
330	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
331	db 39h, X86_MODRM_MAKE(X86_MOD_REG, X86_GREG_xAX, iDstReg & 7)
332	%else
333	mov rcx, iValue
334	cmp rax, rcx
335	%endif
336	%if iBase == 4 \|\| iDstReg == 4
337	mov rdx, rsp
338	mov rsp, [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_rsp))]
339	%endif
340	jz $+3
341	int3
342
343	;
344	; LEA+SIB w/ 16-bit operand size and 64-bit address size.
345	;
346	%ifdef WITH_TRACING
347	mov dword [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_trace))], $
348	%endif
349	call .load_regs
350	%if iBase == 4 \|\| iDstReg == 4
351	mov rsp, LEA_RSP
352	%endif
353
354	; lea
355	%assign iValue iBase_Value + (iIndex_Value << cShift)
356	db X86_OP_PRF_SIZE_OP
357	%if (iBase \| iIndex \| iDstReg) & 8
358	db X86_OP_REX \| ((iBase & 8) >> 3) \| ((iIndex & 8) >> 2) \| ((iDstReg & 8) >> 1)
359	%endif
360	db 8dh, X86_MODRM_MAKE(iMod, iDstReg & 7, iMemReg & 7), X86_SIB_MAKE(iBase & 7, iIndex & 7, cShift)
361	%if iMod == X86_MOD_MEM1
362	db -18
363	%assign iValue iValue - 18
364	%elif iMod == X86_MOD_MEM4 \|\| (iMod == 0 && (iBase & 7) == 5)
365	dd -07fef3ffh
366	%assign iValue iValue - 07fef3ffh
367	%endif
368	%assign iValue (iValue & 0ffffh) \| (iDstReg_Value & 0ffffffffffff0000h)
369
370	; cmp iDstReg, iValue
371	%if iValue <= 07fffffffh && iValue >= -080000000h
372	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
373	db 81h, X86_MODRM_MAKE(X86_MOD_REG, 7, iDstReg & 7)
374	dd iValue & 0ffffffffh
375	%elif iDstReg != X86_GREG_xAX
376	mov rax, iValue
377	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
378	db 39h, X86_MODRM_MAKE(X86_MOD_REG, X86_GREG_xAX, iDstReg & 7)
379	%else
380	mov rcx, iValue
381	cmp rax, rcx
382	%endif
383	%if iBase == 4 \|\| iDstReg == 4
384	mov rdx, rsp
385	mov rsp, [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_rsp))]
386	%endif
387	jz $+3
388	int3
389
390	;
391	; LEA+SIB w/ 16-bit operand size and 32-bit address size.
392	;
393	%ifdef WITH_TRACING
394	mov dword [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_trace))], $
395	%endif
396	call .load_regs
397	%if iBase == 4 \|\| iDstReg == 4
398	mov rsp, LEA_RSP
399	%endif
400
401	; lea
402	%assign iValue iBase_Value + (iIndex_Value << cShift)
403	%if cShift & 2
404	db X86_OP_PRF_SIZE_OP, X86_OP_PRF_SIZE_ADDR
405	%else
406	db X86_OP_PRF_SIZE_ADDR, X86_OP_PRF_SIZE_OP
407	%endif
408	%if (iBase \| iIndex \| iDstReg) & 8
409	db X86_OP_REX \| ((iBase & 8) >> 3) \| ((iIndex & 8) >> 2) \| ((iDstReg & 8) >> 1)
410	%endif
411	db 8dh, X86_MODRM_MAKE(iMod, iDstReg & 7, iMemReg & 7), X86_SIB_MAKE(iBase & 7, iIndex & 7, cShift)
412	%if iMod == X86_MOD_MEM1
413	db +17
414	%assign iValue iValue + 17
415	%elif iMod == X86_MOD_MEM4 \|\| (iMod == 0 && (iBase & 7) == 5)
416	dd +0356786h
417	%assign iValue iValue + 0356786h
418	%endif
419	%assign iValue (iValue & 0ffffh) \| (iDstReg_Value & 0ffffffffffff0000h)
420
421	; cmp iDstReg, iValue
422	%if iValue <= 07fffffffh && iValue >= -080000000h
423	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
424	db 81h, X86_MODRM_MAKE(X86_MOD_REG, 7, iDstReg & 7)
425	dd iValue & 0ffffffffh
426	%elif iDstReg != X86_GREG_xAX
427	mov rax, iValue
428	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
429	db 39h, X86_MODRM_MAKE(X86_MOD_REG, X86_GREG_xAX, iDstReg & 7)
430	%else
431	mov rcx, iValue
432	cmp rax, rcx
433	%endif
434	%if iBase == 4 \|\| iDstReg == 4
435	mov rdx, rsp
436	mov rsp, [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_rsp))]
437	%endif
438	jz $+3
439	int3
440
441	%assign cShift (cShift + 1) & 3
442	%endrep
443	%assign iIndex iIndex + 1
444	%endrep
445	%assign iBase iBase + 1
446	%endrep
447
448	%else ; !SIB
449	;
450	; Plain lea reg, [reg] with disp according to iMod,
451	; or lea reg, [disp32] if iMemReg == 5 && iMod == 0.
452	;
453	%if (iMemReg & 7) == 5 && iMod == 0
454	%assign iMemReg_Value 0
455	%else
456	%assign iMemReg_Value %sel(iMemReg+1, LEA_RAX, LEA_RCX, LEA_RDX, LEA_RBX, LEA_RSP, LEA_RBP, LEA_RSI, LEA_RDI, \
457	LEA_R8, LEA_R9, LEA_R10, LEA_R11, LEA_R12, LEA_R13, LEA_R14, LEA_R15)
458	%endif
459
460	;
461	; 64-bit operand and address size first.
462	;
463	%ifdef WITH_TRACING
464	mov dword [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_trace))], $
465	%endif
466	call .load_regs
467	%if iDstReg == 4
468	mov rsp, LEA_RSP
469	%endif
470
471	; lea
472	%assign iValue iMemReg_Value
473	db X86_OP_REX_W \| ((iDstReg & 8) >> 1) \| ((iMemReg & 8) >> 3)
474	db 8dh, X86_MODRM_MAKE(iMod, iDstReg & 7, iMemReg & 7)
475	%if iMod == X86_MOD_MEM1
476	db 39
477	%assign iValue iValue + 39
478	%elif iMod == 0 && (iMemReg & 7) == 5
479	dd .load_regs - $ - 4
480	%elif iMod == X86_MOD_MEM4
481	dd 058739af8h
482	%assign iValue iValue + 058739af8h
483	%endif
484
485	; cmp iDstReg, iValue
486	%if (iValue <= 07fffffffh && iValue >= -080000000h) \|\| (iMod == 0 && (iMemReg & 7) == 5)
487	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
488	db 81h, X86_MODRM_MAKE(X86_MOD_REG, 7, iDstReg & 7)
489	%if iMod == 0 && (iMemReg & 7) == 5
490	dd .load_regs wrt BS3FLAT
491	%else
492	dd iValue & 0ffffffffh
493	%endif
494	%else
495	%if iDstReg != iMemReg && iValue == iMemReg_Value ; This isn't entirely safe, but it saves a bit of space.
496	db X86_OP_REX_W \| ((iDstReg & 8) >> 1) \| ((iMemReg & 8) >> 3)
497	db 39h, X86_MODRM_MAKE(X86_MOD_REG, iDstReg & 7, iMemReg & 7)
498	%elif iDstReg != X86_GREG_xAX
499	mov rax, iValue
500	db (X86_OP_REX_W \| ((iDstReg & 8) >> 3))
501	db 39h, X86_MODRM_MAKE(X86_MOD_REG, X86_GREG_xAX, iDstReg & 7)
502	%else
503	mov rcx, iValue
504	cmp rax, rcx
505	%endif
506	%endif
507	%if iDstReg == 4
508	mov rsp, [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_rsp))]
509	%endif
510	jz $+3
511	int3
512
513	;
514	; 64-bit operand and 32-bit address size.
515	;
516	call .load_regs
517	%if iDstReg == 4
518	mov rsp, LEA_RSP
519	%endif
520
521	; lea
522	%assign iValue iMemReg_Value
523	db X86_OP_PRF_SIZE_ADDR
524	db X86_OP_REX_W \| ((iDstReg & 8) >> 1) \| ((iMemReg & 8) >> 3)
525	db 8dh, X86_MODRM_MAKE(iMod, iDstReg & 7, iMemReg & 7)
526	%if iMod == X86_MOD_MEM1
527	db -92
528	%assign iValue iValue - 92
529	%elif iMod == 0 && (iMemReg & 7) == 5
530	dd .test_label - $ - 4
531	%elif iMod == X86_MOD_MEM4
532	dd -038f8acf3h
533	%assign iValue iValue - 038f8acf3h
534	%endif
535	%assign iValue iValue & 0ffffffffh
536
537	; cmp iDstReg, iValue
538	%if (iValue <= 07fffffffh && iValue >= 0) \|\| (iMod == 0 && (iMemReg & 7) == 5)
539	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
540	db 81h, X86_MODRM_MAKE(X86_MOD_REG, 7, iDstReg & 7)
541	%if iMod == 0 && (iMemReg & 7) == 5
542	dd .test_label wrt BS3FLAT
543	%else
544	dd iValue
545	%endif
546	%else
547	%if iDstReg != X86_GREG_xAX
548	mov eax, iValue
549	;cmp eax, %sel(iDstReg+1, rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, r8, r9, r10, r11, r12, r13, r14, r15)
550	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
551	db 39h, X86_MODRM_MAKE(X86_MOD_REG, X86_GREG_xAX, iDstReg & 7)
552	%else
553	mov ecx, iValue
554	cmp rax, rcx
555	%endif
556	%endif
557	%if iDstReg == 4
558	mov rsp, [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_rsp))]
559	%endif
560	jz $+3
561	int3
562
563	;
564	; 32-bit operand and 64-bit address size.
565	;
566	call .load_regs
567	%if iDstReg == 4
568	mov rsp, LEA_RSP
569	%endif
570
571	; lea
572	%assign iValue iMemReg_Value
573	%if iDstReg >= 8 \|\| iMemReg >= 8
574	db X86_OP_REX \| ((iDstReg & 8) >> 1) \| ((iMemReg & 8) >> 3)
575	%endif
576	db 8dh, X86_MODRM_MAKE(iMod, iDstReg & 7, iMemReg & 7)
577	%if iMod == X86_MOD_MEM1
578	db 16
579	%assign iValue iValue + 16
580	%elif iMod == 0 && (iMemReg & 7) == 5
581	dd .load_regs - $ - 4
582	%elif iMod == X86_MOD_MEM4
583	dd 0596829deh
584	%assign iValue iValue + 0596829deh
585	%endif
586	%assign iValue iValue & 0ffffffffh
587
588	; cmp iDstReg, iValue
589	%if (iValue <= 07fffffffh && iValue >= 0) \|\| (iMod == 0 && (iMemReg & 7) == 5)
590	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
591	db 81h, X86_MODRM_MAKE(X86_MOD_REG, 7, iDstReg & 7)
592	%if iMod == 0 && (iMemReg & 7) == 5
593	dd .load_regs wrt BS3FLAT
594	%else
595	dd iValue
596	%endif
597	%else
598	%if iDstReg != X86_GREG_xAX
599	mov eax, iValue
600	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
601	db 39h, X86_MODRM_MAKE(X86_MOD_REG, X86_GREG_xAX, iDstReg & 7)
602	%else
603	mov ecx, iValue
604	cmp rax, rcx
605	%endif
606	%endif
607	%if iDstReg == 4
608	mov rsp, [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_rsp))]
609	%endif
610	jz $+3
611	int3
612
613	;
614	; 16-bit operand and 64-bit address size.
615	;
616	call .load_regs
617	%if iDstReg == 4
618	mov rsp, LEA_RSP
619	%endif
620
621	; lea
622	%assign iValue iMemReg_Value
623	db X86_OP_PRF_SIZE_OP
624	%if iDstReg >= 8 \|\| iMemReg >= 8
625	db X86_OP_REX \| ((iDstReg & 8) >> 1) \| ((iMemReg & 8) >> 3)
626	%endif
627	db 8dh, X86_MODRM_MAKE(iMod, iDstReg & 7, iMemReg & 7)
628	%if iMod == X86_MOD_MEM1
629	db -16
630	%assign iValue iValue - 16
631	%elif iMod == 0 && (iMemReg & 7) == 5
632	dd _Bs3Text16_StartOfSegment - $ - 4 + 7 wrt BS3FLAT
633	%assign iValue 7
634	%elif iMod == X86_MOD_MEM4
635	dd 075682332h
636	%assign iValue iValue + 075682332h
637	%endif
638	%assign iValue (iValue & 0ffffh) \| (iDstReg_Value & 0ffffffffffff0000h)
639
640	; cmp iDstReg, iValue
641	%if (iValue <= 07fffffffh && iValue >= -080000000h)
642	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
643	db 81h, X86_MODRM_MAKE(X86_MOD_REG, 7, iDstReg & 7)
644	dd iValue
645	%elif iDstReg != X86_GREG_xAX
646	mov rax, iValue
647	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
648	db 39h, X86_MODRM_MAKE(X86_MOD_REG, X86_GREG_xAX, iDstReg & 7)
649	%else
650	mov rcx, iValue
651	cmp rax, rcx
652	%endif
653	%if iDstReg == 4
654	mov rsp, [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_rsp))]
655	%endif
656	jz $+3
657	int3
658
659	;
660	; 16-bit operand and 32-bit address size.
661	;
662	call .load_regs
663	%if iDstReg == 4
664	mov rsp, LEA_RSP
665	%endif
666
667	; lea
668	%assign iValue iMemReg_Value
669	db X86_OP_PRF_SIZE_OP
670	db X86_OP_PRF_SIZE_ADDR
671	%if iDstReg >= 8 \|\| iMemReg >= 8
672	db X86_OP_REX \| ((iDstReg & 8) >> 1) \| ((iMemReg & 8) >> 3)
673	%endif
674	db 8dh, X86_MODRM_MAKE(iMod, iDstReg & 7, iMemReg & 7)
675	%if iMod == X86_MOD_MEM1
676	db 99
677	%assign iValue iValue + 99
678	%elif iMod == 0 && (iMemReg & 7) == 5
679	dd _Bs3Text16_StartOfSegment - $ - 4 + 3347 wrt BS3FLAT
680	%assign iValue 3347
681	%elif iMod == X86_MOD_MEM4
682	dd -075623432h
683	%assign iValue iValue - 075623432h
684	%endif
685	%assign iValue (iValue & 0ffffh) \| (iDstReg_Value & 0ffffffffffff0000h)
686
687	; cmp iDstReg, iValue
688	%if (iValue <= 07fffffffh && iValue >= -080000000h)
689	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
690	db 81h, X86_MODRM_MAKE(X86_MOD_REG, 7, iDstReg & 7)
691	dd iValue
692	%elif iDstReg != X86_GREG_xAX
693	mov rax, iValue
694	db X86_OP_REX_W \| ((iDstReg & 8) >> 3)
695	db 39h, X86_MODRM_MAKE(X86_MOD_REG, X86_GREG_xAX, iDstReg & 7)
696	%else
697	mov rcx, iValue
698	cmp rax, rcx
699	%endif
700	%if iDstReg == 4
701	mov rsp, [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_rsp))]
702	%endif
703	jz $+3
704	int3
705
706	%endif ; !SIB
707	%assign iMemReg iMemReg + 1
708	%endrep
709	%assign iDstReg iDstReg + 1
710	%endrep
711	%assign iMod iMod + 1
712	%endrep
713	%endif ; !python
714
715	mov rsp, [BS3_DATA16_WRT(BS3_DATA_NM(g_bs3CpuBasic3_lea_rsp))]
716	pop r15
717	pop r14
718	pop r13
719	pop r12
720	pop r11
721	pop r10
722	pop r9
723	pop r8
724	pop rdi
725	pop rsi
726	pop rbp
727	pop rbx
728	pop rdx
729	pop rcx
730	pop rax
731	ret
732
733	.load_regs:
734	mov rax, LEA_RAX
735	mov rcx, LEA_RCX
736	mov rdx, LEA_RDX
737	mov rbx, LEA_RBX
738	mov rbp, LEA_RBP
739	mov rsi, LEA_RSI
740	mov rdi, LEA_RDI
741	mov r8, LEA_R8
742	mov r9, LEA_R9
743	mov r10, LEA_R10
744	mov r11, LEA_R11
745	mov r12, LEA_R12
746	mov r13, LEA_R13
747	mov r14, LEA_R14
748	mov r15, LEA_R15
749	ret
750	BS3_PROC_END_CMN bs3CpuBasic3_lea_64
751

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source: vbox/trunk/src/VBox/ValidationKit/bootsectors/bs3-cpu-basic-3-high-asm.asm

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