1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2020 SiFive
6 #include <linux/bits.h>
8 #define RV_INSN_FUNCT3_MASK GENMASK(14, 12)
9 #define RV_INSN_FUNCT3_OPOFF 12
10 #define RV_INSN_OPCODE_MASK GENMASK(6, 0)
11 #define RV_INSN_OPCODE_OPOFF 0
12 #define RV_INSN_FUNCT12_OPOFF 20
14 #define RV_ENCODE_FUNCT3(f_) (RVG_FUNCT3_##f_ << RV_INSN_FUNCT3_OPOFF)
15 #define RV_ENCODE_FUNCT12(f_) (RVG_FUNCT12_##f_ << RV_INSN_FUNCT12_OPOFF)
17 /* The bit field of immediate value in I-type instruction */
18 #define RV_I_IMM_SIGN_OPOFF 31
19 #define RV_I_IMM_11_0_OPOFF 20
20 #define RV_I_IMM_SIGN_OFF 12
21 #define RV_I_IMM_11_0_OFF 0
22 #define RV_I_IMM_11_0_MASK GENMASK(11, 0)
24 /* The bit field of immediate value in J-type instruction */
25 #define RV_J_IMM_SIGN_OPOFF 31
26 #define RV_J_IMM_10_1_OPOFF 21
27 #define RV_J_IMM_11_OPOFF 20
28 #define RV_J_IMM_19_12_OPOFF 12
29 #define RV_J_IMM_SIGN_OFF 20
30 #define RV_J_IMM_10_1_OFF 1
31 #define RV_J_IMM_11_OFF 11
32 #define RV_J_IMM_19_12_OFF 12
33 #define RV_J_IMM_10_1_MASK GENMASK(9, 0)
34 #define RV_J_IMM_11_MASK GENMASK(0, 0)
35 #define RV_J_IMM_19_12_MASK GENMASK(7, 0)
38 * U-type IMMs contain the upper 20bits [31:20] of an immediate with
39 * the rest filled in by zeros, so no shifting required. Similarly,
40 * bit31 contains the signed state, so no sign extension necessary.
42 #define RV_U_IMM_SIGN_OPOFF 31
43 #define RV_U_IMM_31_12_OPOFF 0
44 #define RV_U_IMM_31_12_MASK GENMASK(31, 12)
46 /* The bit field of immediate value in B-type instruction */
47 #define RV_B_IMM_SIGN_OPOFF 31
48 #define RV_B_IMM_10_5_OPOFF 25
49 #define RV_B_IMM_4_1_OPOFF 8
50 #define RV_B_IMM_11_OPOFF 7
51 #define RV_B_IMM_SIGN_OFF 12
52 #define RV_B_IMM_10_5_OFF 5
53 #define RV_B_IMM_4_1_OFF 1
54 #define RV_B_IMM_11_OFF 11
55 #define RV_B_IMM_10_5_MASK GENMASK(5, 0)
56 #define RV_B_IMM_4_1_MASK GENMASK(3, 0)
57 #define RV_B_IMM_11_MASK GENMASK(0, 0)
59 /* The register offset in RVG instruction */
60 #define RVG_RS1_OPOFF 15
61 #define RVG_RS2_OPOFF 20
62 #define RVG_RD_OPOFF 7
63 #define RVG_RD_MASK GENMASK(4, 0)
65 /* The bit field of immediate value in RVC J instruction */
66 #define RVC_J_IMM_SIGN_OPOFF 12
67 #define RVC_J_IMM_4_OPOFF 11
68 #define RVC_J_IMM_9_8_OPOFF 9
69 #define RVC_J_IMM_10_OPOFF 8
70 #define RVC_J_IMM_6_OPOFF 7
71 #define RVC_J_IMM_7_OPOFF 6
72 #define RVC_J_IMM_3_1_OPOFF 3
73 #define RVC_J_IMM_5_OPOFF 2
74 #define RVC_J_IMM_SIGN_OFF 11
75 #define RVC_J_IMM_4_OFF 4
76 #define RVC_J_IMM_9_8_OFF 8
77 #define RVC_J_IMM_10_OFF 10
78 #define RVC_J_IMM_6_OFF 6
79 #define RVC_J_IMM_7_OFF 7
80 #define RVC_J_IMM_3_1_OFF 1
81 #define RVC_J_IMM_5_OFF 5
82 #define RVC_J_IMM_4_MASK GENMASK(0, 0)
83 #define RVC_J_IMM_9_8_MASK GENMASK(1, 0)
84 #define RVC_J_IMM_10_MASK GENMASK(0, 0)
85 #define RVC_J_IMM_6_MASK GENMASK(0, 0)
86 #define RVC_J_IMM_7_MASK GENMASK(0, 0)
87 #define RVC_J_IMM_3_1_MASK GENMASK(2, 0)
88 #define RVC_J_IMM_5_MASK GENMASK(0, 0)
90 /* The bit field of immediate value in RVC B instruction */
91 #define RVC_B_IMM_SIGN_OPOFF 12
92 #define RVC_B_IMM_4_3_OPOFF 10
93 #define RVC_B_IMM_7_6_OPOFF 5
94 #define RVC_B_IMM_2_1_OPOFF 3
95 #define RVC_B_IMM_5_OPOFF 2
96 #define RVC_B_IMM_SIGN_OFF 8
97 #define RVC_B_IMM_4_3_OFF 3
98 #define RVC_B_IMM_7_6_OFF 6
99 #define RVC_B_IMM_2_1_OFF 1
100 #define RVC_B_IMM_5_OFF 5
101 #define RVC_B_IMM_4_3_MASK GENMASK(1, 0)
102 #define RVC_B_IMM_7_6_MASK GENMASK(1, 0)
103 #define RVC_B_IMM_2_1_MASK GENMASK(1, 0)
104 #define RVC_B_IMM_5_MASK GENMASK(0, 0)
106 #define RVC_INSN_FUNCT4_MASK GENMASK(15, 12)
107 #define RVC_INSN_FUNCT4_OPOFF 12
108 #define RVC_INSN_FUNCT3_MASK GENMASK(15, 13)
109 #define RVC_INSN_FUNCT3_OPOFF 13
110 #define RVC_INSN_J_RS2_MASK GENMASK(6, 2)
111 #define RVC_INSN_OPCODE_MASK GENMASK(1, 0)
112 #define RVC_ENCODE_FUNCT3(f_) (RVC_FUNCT3_##f_ << RVC_INSN_FUNCT3_OPOFF)
113 #define RVC_ENCODE_FUNCT4(f_) (RVC_FUNCT4_##f_ << RVC_INSN_FUNCT4_OPOFF)
115 /* The register offset in RVC op=C0 instruction */
116 #define RVC_C0_RS1_OPOFF 7
117 #define RVC_C0_RS2_OPOFF 2
118 #define RVC_C0_RD_OPOFF 2
120 /* The register offset in RVC op=C1 instruction */
121 #define RVC_C1_RS1_OPOFF 7
122 #define RVC_C1_RS2_OPOFF 2
123 #define RVC_C1_RD_OPOFF 7
125 /* The register offset in RVC op=C2 instruction */
126 #define RVC_C2_RS1_OPOFF 7
127 #define RVC_C2_RS2_OPOFF 2
128 #define RVC_C2_RD_OPOFF 7
130 /* parts of opcode for RVG*/
131 #define RVG_OPCODE_FENCE 0x0f
132 #define RVG_OPCODE_AUIPC 0x17
133 #define RVG_OPCODE_BRANCH 0x63
134 #define RVG_OPCODE_JALR 0x67
135 #define RVG_OPCODE_JAL 0x6f
136 #define RVG_OPCODE_SYSTEM 0x73
138 /* parts of opcode for RVC*/
139 #define RVC_OPCODE_C0 0x0
140 #define RVC_OPCODE_C1 0x1
141 #define RVC_OPCODE_C2 0x2
143 /* parts of funct3 code for I, M, A extension*/
144 #define RVG_FUNCT3_JALR 0x0
145 #define RVG_FUNCT3_BEQ 0x0
146 #define RVG_FUNCT3_BNE 0x1
147 #define RVG_FUNCT3_BLT 0x4
148 #define RVG_FUNCT3_BGE 0x5
149 #define RVG_FUNCT3_BLTU 0x6
150 #define RVG_FUNCT3_BGEU 0x7
152 /* parts of funct3 code for C extension*/
153 #define RVC_FUNCT3_C_BEQZ 0x6
154 #define RVC_FUNCT3_C_BNEZ 0x7
155 #define RVC_FUNCT3_C_J 0x5
156 #define RVC_FUNCT3_C_JAL 0x1
157 #define RVC_FUNCT4_C_JR 0x8
158 #define RVC_FUNCT4_C_JALR 0x9
159 #define RVC_FUNCT4_C_EBREAK 0x9
161 #define RVG_FUNCT12_EBREAK 0x1
162 #define RVG_FUNCT12_SRET 0x102
164 #define RVG_MATCH_AUIPC (RVG_OPCODE_AUIPC)
165 #define RVG_MATCH_JALR (RV_ENCODE_FUNCT3(JALR) | RVG_OPCODE_JALR)
166 #define RVG_MATCH_JAL (RVG_OPCODE_JAL)
167 #define RVG_MATCH_FENCE (RVG_OPCODE_FENCE)
168 #define RVG_MATCH_BEQ (RV_ENCODE_FUNCT3(BEQ) | RVG_OPCODE_BRANCH)
169 #define RVG_MATCH_BNE (RV_ENCODE_FUNCT3(BNE) | RVG_OPCODE_BRANCH)
170 #define RVG_MATCH_BLT (RV_ENCODE_FUNCT3(BLT) | RVG_OPCODE_BRANCH)
171 #define RVG_MATCH_BGE (RV_ENCODE_FUNCT3(BGE) | RVG_OPCODE_BRANCH)
172 #define RVG_MATCH_BLTU (RV_ENCODE_FUNCT3(BLTU) | RVG_OPCODE_BRANCH)
173 #define RVG_MATCH_BGEU (RV_ENCODE_FUNCT3(BGEU) | RVG_OPCODE_BRANCH)
174 #define RVG_MATCH_EBREAK (RV_ENCODE_FUNCT12(EBREAK) | RVG_OPCODE_SYSTEM)
175 #define RVG_MATCH_SRET (RV_ENCODE_FUNCT12(SRET) | RVG_OPCODE_SYSTEM)
176 #define RVC_MATCH_C_BEQZ (RVC_ENCODE_FUNCT3(C_BEQZ) | RVC_OPCODE_C1)
177 #define RVC_MATCH_C_BNEZ (RVC_ENCODE_FUNCT3(C_BNEZ) | RVC_OPCODE_C1)
178 #define RVC_MATCH_C_J (RVC_ENCODE_FUNCT3(C_J) | RVC_OPCODE_C1)
179 #define RVC_MATCH_C_JAL (RVC_ENCODE_FUNCT3(C_JAL) | RVC_OPCODE_C1)
180 #define RVC_MATCH_C_JR (RVC_ENCODE_FUNCT4(C_JR) | RVC_OPCODE_C2)
181 #define RVC_MATCH_C_JALR (RVC_ENCODE_FUNCT4(C_JALR) | RVC_OPCODE_C2)
182 #define RVC_MATCH_C_EBREAK (RVC_ENCODE_FUNCT4(C_EBREAK) | RVC_OPCODE_C2)
184 #define RVG_MASK_AUIPC (RV_INSN_OPCODE_MASK)
185 #define RVG_MASK_JALR (RV_INSN_FUNCT3_MASK | RV_INSN_OPCODE_MASK)
186 #define RVG_MASK_JAL (RV_INSN_OPCODE_MASK)
187 #define RVG_MASK_FENCE (RV_INSN_OPCODE_MASK)
188 #define RVC_MASK_C_JALR (RVC_INSN_FUNCT4_MASK | RVC_INSN_J_RS2_MASK | RVC_INSN_OPCODE_MASK)
189 #define RVC_MASK_C_JR (RVC_INSN_FUNCT4_MASK | RVC_INSN_J_RS2_MASK | RVC_INSN_OPCODE_MASK)
190 #define RVC_MASK_C_JAL (RVC_INSN_FUNCT3_MASK | RVC_INSN_OPCODE_MASK)
191 #define RVC_MASK_C_J (RVC_INSN_FUNCT3_MASK | RVC_INSN_OPCODE_MASK)
192 #define RVG_MASK_BEQ (RV_INSN_FUNCT3_MASK | RV_INSN_OPCODE_MASK)
193 #define RVG_MASK_BNE (RV_INSN_FUNCT3_MASK | RV_INSN_OPCODE_MASK)
194 #define RVG_MASK_BLT (RV_INSN_FUNCT3_MASK | RV_INSN_OPCODE_MASK)
195 #define RVG_MASK_BGE (RV_INSN_FUNCT3_MASK | RV_INSN_OPCODE_MASK)
196 #define RVG_MASK_BLTU (RV_INSN_FUNCT3_MASK | RV_INSN_OPCODE_MASK)
197 #define RVG_MASK_BGEU (RV_INSN_FUNCT3_MASK | RV_INSN_OPCODE_MASK)
198 #define RVC_MASK_C_BEQZ (RVC_INSN_FUNCT3_MASK | RVC_INSN_OPCODE_MASK)
199 #define RVC_MASK_C_BNEZ (RVC_INSN_FUNCT3_MASK | RVC_INSN_OPCODE_MASK)
200 #define RVC_MASK_C_EBREAK 0xffff
201 #define RVG_MASK_EBREAK 0xffffffff
202 #define RVG_MASK_SRET 0xffffffff
204 #define __INSN_LENGTH_MASK _UL(0x3)
205 #define __INSN_LENGTH_GE_32 _UL(0x3)
206 #define __INSN_OPCODE_MASK _UL(0x7F)
207 #define __INSN_BRANCH_OPCODE _UL(RVG_OPCODE_BRANCH)
209 #define __RISCV_INSN_FUNCS(name, mask, val) \
210 static __always_inline bool riscv_insn_is_##name(u32 code) \
212 BUILD_BUG_ON(~(mask) & (val)); \
213 return (code & (mask)) == (val); \
216 #if __riscv_xlen == 32
217 /* C.JAL is an RV32C-only instruction */
218 __RISCV_INSN_FUNCS(c_jal, RVC_MASK_C_JAL, RVC_MATCH_C_JAL)
220 #define riscv_insn_is_c_jal(opcode) 0
222 __RISCV_INSN_FUNCS(auipc, RVG_MASK_AUIPC, RVG_MATCH_AUIPC)
223 __RISCV_INSN_FUNCS(jalr, RVG_MASK_JALR, RVG_MATCH_JALR)
224 __RISCV_INSN_FUNCS(jal, RVG_MASK_JAL, RVG_MATCH_JAL)
225 __RISCV_INSN_FUNCS(c_jr, RVC_MASK_C_JR, RVC_MATCH_C_JR)
226 __RISCV_INSN_FUNCS(c_jalr, RVC_MASK_C_JALR, RVC_MATCH_C_JALR)
227 __RISCV_INSN_FUNCS(c_j, RVC_MASK_C_J, RVC_MATCH_C_J)
228 __RISCV_INSN_FUNCS(beq, RVG_MASK_BEQ, RVG_MATCH_BEQ)
229 __RISCV_INSN_FUNCS(bne, RVG_MASK_BNE, RVG_MATCH_BNE)
230 __RISCV_INSN_FUNCS(blt, RVG_MASK_BLT, RVG_MATCH_BLT)
231 __RISCV_INSN_FUNCS(bge, RVG_MASK_BGE, RVG_MATCH_BGE)
232 __RISCV_INSN_FUNCS(bltu, RVG_MASK_BLTU, RVG_MATCH_BLTU)
233 __RISCV_INSN_FUNCS(bgeu, RVG_MASK_BGEU, RVG_MATCH_BGEU)
234 __RISCV_INSN_FUNCS(c_beqz, RVC_MASK_C_BEQZ, RVC_MATCH_C_BEQZ)
235 __RISCV_INSN_FUNCS(c_bnez, RVC_MASK_C_BNEZ, RVC_MATCH_C_BNEZ)
236 __RISCV_INSN_FUNCS(c_ebreak, RVC_MASK_C_EBREAK, RVC_MATCH_C_EBREAK)
237 __RISCV_INSN_FUNCS(ebreak, RVG_MASK_EBREAK, RVG_MATCH_EBREAK)
238 __RISCV_INSN_FUNCS(sret, RVG_MASK_SRET, RVG_MATCH_SRET)
239 __RISCV_INSN_FUNCS(fence, RVG_MASK_FENCE, RVG_MATCH_FENCE);
241 /* special case to catch _any_ system instruction */
242 static __always_inline bool riscv_insn_is_system(u32 code)
244 return (code & RV_INSN_OPCODE_MASK) == RVG_OPCODE_SYSTEM;
247 /* special case to catch _any_ branch instruction */
248 static __always_inline bool riscv_insn_is_branch(u32 code)
250 return (code & RV_INSN_OPCODE_MASK) == RVG_OPCODE_BRANCH;
253 #define RV_IMM_SIGN(x) (-(((x) >> 31) & 1))
254 #define RVC_IMM_SIGN(x) (-(((x) >> 12) & 1))
255 #define RV_X(X, s, mask) (((X) >> (s)) & (mask))
256 #define RVC_X(X, s, mask) RV_X(X, s, mask)
258 #define RV_EXTRACT_RD_REG(x) \
259 ({typeof(x) x_ = (x); \
260 (RV_X(x_, RVG_RD_OPOFF, RVG_RD_MASK)); })
262 #define RV_EXTRACT_UTYPE_IMM(x) \
263 ({typeof(x) x_ = (x); \
264 (RV_X(x_, RV_U_IMM_31_12_OPOFF, RV_U_IMM_31_12_MASK)); })
266 #define RV_EXTRACT_JTYPE_IMM(x) \
267 ({typeof(x) x_ = (x); \
268 (RV_X(x_, RV_J_IMM_10_1_OPOFF, RV_J_IMM_10_1_MASK) << RV_J_IMM_10_1_OFF) | \
269 (RV_X(x_, RV_J_IMM_11_OPOFF, RV_J_IMM_11_MASK) << RV_J_IMM_11_OFF) | \
270 (RV_X(x_, RV_J_IMM_19_12_OPOFF, RV_J_IMM_19_12_MASK) << RV_J_IMM_19_12_OFF) | \
271 (RV_IMM_SIGN(x_) << RV_J_IMM_SIGN_OFF); })
273 #define RV_EXTRACT_ITYPE_IMM(x) \
274 ({typeof(x) x_ = (x); \
275 (RV_X(x_, RV_I_IMM_11_0_OPOFF, RV_I_IMM_11_0_MASK)) | \
276 (RV_IMM_SIGN(x_) << RV_I_IMM_SIGN_OFF); })
278 #define RV_EXTRACT_BTYPE_IMM(x) \
279 ({typeof(x) x_ = (x); \
280 (RV_X(x_, RV_B_IMM_4_1_OPOFF, RV_B_IMM_4_1_MASK) << RV_B_IMM_4_1_OFF) | \
281 (RV_X(x_, RV_B_IMM_10_5_OPOFF, RV_B_IMM_10_5_MASK) << RV_B_IMM_10_5_OFF) | \
282 (RV_X(x_, RV_B_IMM_11_OPOFF, RV_B_IMM_11_MASK) << RV_B_IMM_11_OFF) | \
283 (RV_IMM_SIGN(x_) << RV_B_IMM_SIGN_OFF); })
285 #define RVC_EXTRACT_JTYPE_IMM(x) \
286 ({typeof(x) x_ = (x); \
287 (RVC_X(x_, RVC_J_IMM_3_1_OPOFF, RVC_J_IMM_3_1_MASK) << RVC_J_IMM_3_1_OFF) | \
288 (RVC_X(x_, RVC_J_IMM_4_OPOFF, RVC_J_IMM_4_MASK) << RVC_J_IMM_4_OFF) | \
289 (RVC_X(x_, RVC_J_IMM_5_OPOFF, RVC_J_IMM_5_MASK) << RVC_J_IMM_5_OFF) | \
290 (RVC_X(x_, RVC_J_IMM_6_OPOFF, RVC_J_IMM_6_MASK) << RVC_J_IMM_6_OFF) | \
291 (RVC_X(x_, RVC_J_IMM_7_OPOFF, RVC_J_IMM_7_MASK) << RVC_J_IMM_7_OFF) | \
292 (RVC_X(x_, RVC_J_IMM_9_8_OPOFF, RVC_J_IMM_9_8_MASK) << RVC_J_IMM_9_8_OFF) | \
293 (RVC_X(x_, RVC_J_IMM_10_OPOFF, RVC_J_IMM_10_MASK) << RVC_J_IMM_10_OFF) | \
294 (RVC_IMM_SIGN(x_) << RVC_J_IMM_SIGN_OFF); })
296 #define RVC_EXTRACT_BTYPE_IMM(x) \
297 ({typeof(x) x_ = (x); \
298 (RVC_X(x_, RVC_B_IMM_2_1_OPOFF, RVC_B_IMM_2_1_MASK) << RVC_B_IMM_2_1_OFF) | \
299 (RVC_X(x_, RVC_B_IMM_4_3_OPOFF, RVC_B_IMM_4_3_MASK) << RVC_B_IMM_4_3_OFF) | \
300 (RVC_X(x_, RVC_B_IMM_5_OPOFF, RVC_B_IMM_5_MASK) << RVC_B_IMM_5_OFF) | \
301 (RVC_X(x_, RVC_B_IMM_7_6_OPOFF, RVC_B_IMM_7_6_MASK) << RVC_B_IMM_7_6_OFF) | \
302 (RVC_IMM_SIGN(x_) << RVC_B_IMM_SIGN_OFF); })
305 * Get the immediate from a J-type instruction.
307 * @insn: instruction to process
310 static inline s32 riscv_insn_extract_jtype_imm(u32 insn)
312 return RV_EXTRACT_JTYPE_IMM(insn);
316 * Update a J-type instruction with an immediate value.
318 * @insn: pointer to the jtype instruction
319 * @imm: the immediate to insert into the instruction
321 static inline void riscv_insn_insert_jtype_imm(u32 *insn, s32 imm)
323 /* drop the old IMMs, all jal IMM bits sit at 31:12 */
324 *insn &= ~GENMASK(31, 12);
325 *insn |= (RV_X(imm, RV_J_IMM_10_1_OFF, RV_J_IMM_10_1_MASK) << RV_J_IMM_10_1_OPOFF) |
326 (RV_X(imm, RV_J_IMM_11_OFF, RV_J_IMM_11_MASK) << RV_J_IMM_11_OPOFF) |
327 (RV_X(imm, RV_J_IMM_19_12_OFF, RV_J_IMM_19_12_MASK) << RV_J_IMM_19_12_OPOFF) |
328 (RV_X(imm, RV_J_IMM_SIGN_OFF, 1) << RV_J_IMM_SIGN_OPOFF);
332 * Put together one immediate from a U-type and I-type instruction pair.
334 * The U-type contains an upper immediate, meaning bits[31:12] with [11:0]
335 * being zero, while the I-type contains a 12bit immediate.
336 * Combined these can encode larger 32bit values and are used for example
337 * in auipc + jalr pairs to allow larger jumps.
339 * @utype_insn: instruction containing the upper immediate
340 * @itype_insn: instruction
341 * Return: combined immediate
343 static inline s32 riscv_insn_extract_utype_itype_imm(u32 utype_insn, u32 itype_insn)
347 imm = RV_EXTRACT_UTYPE_IMM(utype_insn);
348 imm += RV_EXTRACT_ITYPE_IMM(itype_insn);
354 * Update a set of two instructions (U-type + I-type) with an immediate value.
356 * Used for example in auipc+jalrs pairs the U-type instructions contains
357 * a 20bit upper immediate representing bits[31:12], while the I-type
358 * instruction contains a 12bit immediate representing bits[11:0].
360 * This also takes into account that both separate immediates are
361 * considered as signed values, so if the I-type immediate becomes
362 * negative (BIT(11) set) the U-type part gets adjusted.
364 * @utype_insn: pointer to the utype instruction of the pair
365 * @itype_insn: pointer to the itype instruction of the pair
366 * @imm: the immediate to insert into the two instructions
368 static inline void riscv_insn_insert_utype_itype_imm(u32 *utype_insn, u32 *itype_insn, s32 imm)
370 /* drop possible old IMM values */
371 *utype_insn &= ~(RV_U_IMM_31_12_MASK);
372 *itype_insn &= ~(RV_I_IMM_11_0_MASK << RV_I_IMM_11_0_OPOFF);
374 /* add the adapted IMMs */
375 *utype_insn |= (imm & RV_U_IMM_31_12_MASK) + ((imm & BIT(11)) << 1);
376 *itype_insn |= ((imm & RV_I_IMM_11_0_MASK) << RV_I_IMM_11_0_OPOFF);