1 /* alpha/ngen.h ****************************************************************
3 Copyright (c) 1997 A. Krall, R. Grafl, M. Gschwind, M. Probst
5 See file COPYRIGHT for information on usage and disclaimer of warranties
7 Contains the machine dependent code generator definitions and macros for an
10 Authors: Andreas Krall EMAIL: cacao@complang.tuwien.ac.at
11 Reinhard Grafl EMAIL: cacao@complang.tuwien.ac.at
13 Last Change: 1998/11/04
15 *******************************************************************************/
17 /* see also file calling.doc for explanation of calling conventions */
19 /* preallocated registers *****************************************************/
21 /* integer registers */
23 #define REG_RESULT 0 /* to deliver method results */
25 #define REG_RA 26 /* return address */
26 #define REG_PV 27 /* procedure vector, must be provided by caller */
27 #define REG_METHODPTR 28 /* pointer to the place from where the procedure */
28 /* vector has been fetched */
29 #define REG_ITMP1 25 /* temporary register */
30 #define REG_ITMP2 28 /* temporary register and method pointer */
31 #define REG_ITMP3 29 /* temporary register */
33 #define REG_ITMP1_XPTR 25 /* exception pointer = temporary register 1 */
34 #define REG_ITMP2_XPC 28 /* exception pc = temporary register 2 */
36 #define REG_SP 30 /* stack pointer */
37 #define REG_ZERO 31 /* allways zero */
39 /* floating point registers */
41 #define REG_FRESULT 0 /* to deliver floating point method results */
42 #define REG_FTMP1 28 /* temporary floating point register */
43 #define REG_FTMP2 29 /* temporary floating point register */
44 #define REG_FTMP3 30 /* temporary floating point register */
46 #define REG_IFTMP 28 /* temporary integer and floating point register */
48 /* register descripton - array ************************************************/
50 /* #define REG_RES 0 reserved register for OS or code generator */
51 /* #define REG_RET 1 return value register */
52 /* #define REG_EXC 2 exception value register (only old jit) */
53 /* #define REG_SAV 3 (callee) saved register */
54 /* #define REG_TMP 4 scratch temporary register (caller saved) */
55 /* #define REG_ARG 5 argument register (caller saved) */
57 /* #define REG_END -1 last entry in tables */
60 REG_RET, REG_TMP, REG_TMP, REG_TMP, REG_TMP, REG_TMP, REG_TMP, REG_TMP,
61 REG_TMP, REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_SAV,
62 REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_TMP, REG_TMP,
63 REG_TMP, REG_RES, REG_RES, REG_RES, REG_RES, REG_RES, REG_RES, REG_RES,
66 #define INT_SAV_CNT 7 /* number of int callee saved registers */
67 #define INT_ARG_CNT 6 /* number of int argument registers */
69 /* for use of reserved registers, see comment above */
71 int nregdescfloat[] = {
72 REG_RET, REG_TMP, REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_SAV,
73 REG_SAV, REG_SAV, REG_TMP, REG_TMP, REG_TMP, REG_TMP, REG_TMP, REG_TMP,
74 REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_TMP, REG_TMP,
75 REG_TMP, REG_TMP, REG_TMP, REG_TMP, REG_RES, REG_RES, REG_RES, REG_RES,
78 #define FLT_SAV_CNT 8 /* number of flt callee saved registers */
79 #define FLT_ARG_CNT 6 /* number of flt argument registers */
81 /* for use of reserved registers, see comment above */
84 /* parameter allocation mode */
86 int nreg_parammode = PARAMMODE_NUMBERED;
88 /* parameter-registers will be allocated by assigning the
89 1. parameter: int/float-reg 16
90 2. parameter: int/float-reg 17
91 3. parameter: int/float-reg 18 ....
95 /* stackframe-infos ***********************************************************/
97 int parentargs_base; /* offset in stackframe for the parameter from the caller*/
99 /* -> see file 'calling.doc' */
102 /* macros to create code ******************************************************/
107 /* 3-address-operations: M_OP3
109 fu ..... function-number
110 a ..... register number source 1
111 b ..... register number or constant integer source 2
112 c ..... register number destination
113 const .. switch to use b as constant integer
114 (REG means: use b as register number)
115 (CONST means: use b as constant 8-bit-integer)
117 #define M_OP3(op,fu,a,b,c,const) \
118 *(mcodeptr++) = ( (((s4)(op))<<26)|((a)<<21)|((b)<<(16-3*(const)))| \
119 ((const)<<12)|((fu)<<5)|((c)) )
121 /* 3-address-floating-point-operation: M_FOP3
123 fu .... function-number
124 a,b ... source floating-point registers
125 c ..... destination register
127 #define M_FOP3(op,fu,a,b,c) \
128 *(mcodeptr++) = ( (((s4)(op))<<26)|((a)<<21)|((b)<<16)|((fu)<<5)|(c) )
130 /* branch instructions: M_BRA
132 a ...... register to be tested
133 disp ... relative address to be jumped to (divided by 4)
135 #define M_BRA(op,a,disp) \
136 *(mcodeptr++) = ( (((s4)(op))<<26)|((a)<<21)|((disp)&0x1fffff) )
139 /* memory operations: M_MEM
141 a ...... source/target register for memory access
142 b ...... base register
143 disp ... displacement (16 bit signed) to be added to b
145 #define M_MEM(op,a,b,disp) \
146 *(mcodeptr++) = ( (((s4)(op))<<26)|((a)<<21)|((b)<<16)|((disp)&0xffff) )
149 /* macros for all used commands (see an Alpha-manual for description) *********/
151 #define M_LDA(a,b,disp) M_MEM (0x08,a,b,disp) /* low const */
152 #define M_LDAH(a,b,disp) M_MEM (0x09,a,b,disp) /* high const */
153 #define M_BLDU(a,b,disp) M_MEM (0x0a,a,b,disp) /* 8 load */
154 #define M_SLDU(a,b,disp) M_MEM (0x0c,a,b,disp) /* 16 load */
155 #define M_ILD(a,b,disp) M_MEM (0x28,a,b,disp) /* 32 load */
156 #define M_LLD(a,b,disp) M_MEM (0x29,a,b,disp) /* 64 load */
157 #define M_ALD(a,b,disp) M_MEM (0x29,a,b,disp) /* addr load */
158 #define M_BST(a,b,disp) M_MEM (0x0e,a,b,disp) /* 8 store */
159 #define M_SST(a,b,disp) M_MEM (0x0d,a,b,disp) /* 16 store */
160 #define M_IST(a,b,disp) M_MEM (0x2c,a,b,disp) /* 32 store */
161 #define M_LST(a,b,disp) M_MEM (0x2d,a,b,disp) /* 64 store */
162 #define M_AST(a,b,disp) M_MEM (0x2d,a,b,disp) /* addr store */
164 #define M_BSEXT(b,c) M_OP3 (0x1c,0x0,REG_ZERO,b,c,0) /* 8 signext */
165 #define M_SSEXT(b,c) M_OP3 (0x1c,0x1,REG_ZERO,b,c,0) /* 16 signext */
167 #define M_BR(disp) M_BRA (0x30,REG_ZERO,disp) /* branch */
168 #define M_BSR(ra,disp) M_BRA (0x34,ra,disp) /* branch sbr */
169 #define M_BEQZ(a,disp) M_BRA (0x39,a,disp) /* br a == 0 */
170 #define M_BLTZ(a,disp) M_BRA (0x3a,a,disp) /* br a < 0 */
171 #define M_BLEZ(a,disp) M_BRA (0x3b,a,disp) /* br a <= 0 */
172 #define M_BNEZ(a,disp) M_BRA (0x3d,a,disp) /* br a != 0 */
173 #define M_BGEZ(a,disp) M_BRA (0x3e,a,disp) /* br a >= 0 */
174 #define M_BGTZ(a,disp) M_BRA (0x3f,a,disp) /* br a > 0 */
176 #define M_JMP(a,b) M_MEM (0x1a,a,b,0x0000) /* jump */
177 #define M_JSR(a,b) M_MEM (0x1a,a,b,0x4000) /* call sbr */
178 #define M_RET(a,b) M_MEM (0x1a,a,b,0x8000) /* return */
180 #define M_IADD(a,b,c) M_OP3 (0x10,0x0, a,b,c,0) /* 32 add */
181 #define M_LADD(a,b,c) M_OP3 (0x10,0x20, a,b,c,0) /* 64 add */
182 #define M_ISUB(a,b,c) M_OP3 (0x10,0x09, a,b,c,0) /* 32 sub */
183 #define M_LSUB(a,b,c) M_OP3 (0x10,0x29, a,b,c,0) /* 64 sub */
184 #define M_IMUL(a,b,c) M_OP3 (0x13,0x00, a,b,c,0) /* 32 mul */
185 #define M_LMUL(a,b,c) M_OP3 (0x13,0x20, a,b,c,0) /* 64 mul */
187 #define M_IADD_IMM(a,b,c) M_OP3 (0x10,0x0, a,b,c,1) /* 32 add */
188 #define M_LADD_IMM(a,b,c) M_OP3 (0x10,0x20, a,b,c,1) /* 64 add */
189 #define M_ISUB_IMM(a,b,c) M_OP3 (0x10,0x09, a,b,c,1) /* 32 sub */
190 #define M_LSUB_IMM(a,b,c) M_OP3 (0x10,0x29, a,b,c,1) /* 64 sub */
191 #define M_IMUL_IMM(a,b,c) M_OP3 (0x13,0x00, a,b,c,1) /* 32 mul */
192 #define M_LMUL_IMM(a,b,c) M_OP3 (0x13,0x20, a,b,c,1) /* 64 mul */
194 #define M_CMPEQ(a,b,c) M_OP3 (0x10,0x2d, a,b,c,0) /* c = a == b */
195 #define M_CMPLT(a,b,c) M_OP3 (0x10,0x4d, a,b,c,0) /* c = a < b */
196 #define M_CMPLE(a,b,c) M_OP3 (0x10,0x6d, a,b,c,0) /* c = a <= b */
198 #define M_CMPULE(a,b,c) M_OP3 (0x10,0x3d, a,b,c,0) /* c = a <= b */
199 #define M_CMPULT(a,b,c) M_OP3 (0x10,0x1d, a,b,c,0) /* c = a <= b */
201 #define M_CMPEQ_IMM(a,b,c) M_OP3 (0x10,0x2d, a,b,c,1) /* c = a == b */
202 #define M_CMPLT_IMM(a,b,c) M_OP3 (0x10,0x4d, a,b,c,1) /* c = a < b */
203 #define M_CMPLE_IMM(a,b,c) M_OP3 (0x10,0x6d, a,b,c,1) /* c = a <= b */
205 #define M_CMPULE_IMM(a,b,c) M_OP3 (0x10,0x3d, a,b,c,1) /* c = a <= b */
206 #define M_CMPULT_IMM(a,b,c) M_OP3 (0x10,0x1d, a,b,c,1) /* c = a <= b */
208 #define M_AND(a,b,c) M_OP3 (0x11,0x00, a,b,c,0) /* c = a & b */
209 #define M_OR( a,b,c) M_OP3 (0x11,0x20, a,b,c,0) /* c = a | b */
210 #define M_XOR(a,b,c) M_OP3 (0x11,0x40, a,b,c,0) /* c = a ^ b */
212 #define M_AND_IMM(a,b,c) M_OP3 (0x11,0x00, a,b,c,1) /* c = a & b */
213 #define M_OR_IMM( a,b,c) M_OP3 (0x11,0x20, a,b,c,1) /* c = a | b */
214 #define M_XOR_IMM(a,b,c) M_OP3 (0x11,0x40, a,b,c,1) /* c = a ^ b */
216 #define M_MOV(a,c) M_OR (a,a,c) /* c = a */
217 #define M_CLR(c) M_OR (31,31,c) /* c = 0 */
218 #define M_NOP M_OR (31,31,31) /* ; */
220 #define M_SLL(a,b,c) M_OP3 (0x12,0x39, a,b,c,0) /* c = a << b */
221 #define M_SRA(a,b,c) M_OP3 (0x12,0x3c, a,b,c,0) /* c = a >> b */
222 #define M_SRL(a,b,c) M_OP3 (0x12,0x34, a,b,c,0) /* c = a >>>b */
224 #define M_SLL_IMM(a,b,c) M_OP3 (0x12,0x39, a,b,c,1) /* c = a << b */
225 #define M_SRA_IMM(a,b,c) M_OP3 (0x12,0x3c, a,b,c,1) /* c = a >> b */
226 #define M_SRL_IMM(a,b,c) M_OP3 (0x12,0x34, a,b,c,1) /* c = a >>>b */
228 #define M_FLD(a,b,disp) M_MEM (0x22,a,b,disp) /* load flt */
229 #define M_DLD(a,b,disp) M_MEM (0x23,a,b,disp) /* load dbl */
230 #define M_FST(a,b,disp) M_MEM (0x26,a,b,disp) /* store flt */
231 #define M_DST(a,b,disp) M_MEM (0x27,a,b,disp) /* store dbl */
233 #define M_FADD(a,b,c) M_FOP3 (0x16, 0x080, a,b,c) /* flt add */
234 #define M_DADD(a,b,c) M_FOP3 (0x16, 0x0a0, a,b,c) /* dbl add */
235 #define M_FSUB(a,b,c) M_FOP3 (0x16, 0x081, a,b,c) /* flt sub */
236 #define M_DSUB(a,b,c) M_FOP3 (0x16, 0x0a1, a,b,c) /* dbl sub */
237 #define M_FMUL(a,b,c) M_FOP3 (0x16, 0x082, a,b,c) /* flt mul */
238 #define M_DMUL(a,b,c) M_FOP3 (0x16, 0x0a2, a,b,c) /* dbl mul */
239 #define M_FDIV(a,b,c) M_FOP3 (0x16, 0x083, a,b,c) /* flt div */
240 #define M_DDIV(a,b,c) M_FOP3 (0x16, 0x0a3, a,b,c) /* dbl div */
242 #define M_FADDS(a,b,c) M_FOP3 (0x16, 0x580, a,b,c) /* flt add */
243 #define M_DADDS(a,b,c) M_FOP3 (0x16, 0x5a0, a,b,c) /* dbl add */
244 #define M_FSUBS(a,b,c) M_FOP3 (0x16, 0x581, a,b,c) /* flt sub */
245 #define M_DSUBS(a,b,c) M_FOP3 (0x16, 0x5a1, a,b,c) /* dbl sub */
246 #define M_FMULS(a,b,c) M_FOP3 (0x16, 0x582, a,b,c) /* flt mul */
247 #define M_DMULS(a,b,c) M_FOP3 (0x16, 0x5a2, a,b,c) /* dbl mul */
248 #define M_FDIVS(a,b,c) M_FOP3 (0x16, 0x583, a,b,c) /* flt div */
249 #define M_DDIVS(a,b,c) M_FOP3 (0x16, 0x5a3, a,b,c) /* dbl div */
251 #define M_CVTDF(b,c) M_FOP3 (0x16, 0x0ac, 31,b,c) /* dbl2long */
252 #define M_CVTLF(b,c) M_FOP3 (0x16, 0x0bc, 31,b,c) /* long2flt */
253 #define M_CVTLD(b,c) M_FOP3 (0x16, 0x0be, 31,b,c) /* long2dbl */
254 #define M_CVTDL(b,c) M_FOP3 (0x16, 0x1af, 31,b,c) /* dbl2long */
255 #define M_CVTDL_C(b,c) M_FOP3 (0x16, 0x12f, 31,b,c) /* dbl2long */
256 #define M_CVTLI(b,c) M_FOP3 (0x17, 0x130, 31,b,c) /* long2int */
258 #define M_CVTDFS(b,c) M_FOP3 (0x16, 0x5ac, 31,b,c) /* dbl2long */
259 #define M_CVTDLS(b,c) M_FOP3 (0x16, 0x5af, 31,b,c) /* dbl2long */
260 #define M_CVTDL_CS(b,c) M_FOP3 (0x16, 0x52f, 31,b,c) /* dbl2long */
261 #define M_CVTLIS(b,c) M_FOP3 (0x17, 0x530, 31,b,c) /* long2int */
263 #define M_FCMPEQ(a,b,c) M_FOP3 (0x16, 0x0a5, a,b,c) /* c = a==b */
264 #define M_FCMPLT(a,b,c) M_FOP3 (0x16, 0x0a6, a,b,c) /* c = a<b */
266 #define M_FCMPEQS(a,b,c) M_FOP3 (0x16, 0x5a5, a,b,c) /* c = a==b */
267 #define M_FCMPLTS(a,b,c) M_FOP3 (0x16, 0x5a6, a,b,c) /* c = a<b */
269 #define M_FMOV(fa,fb) M_FOP3 (0x17, 0x020, fa,fa,fb) /* b = a */
270 #define M_FMOVN(fa,fb) M_FOP3 (0x17, 0x021, fa,fa,fb) /* b = -a */
272 #define M_FNOP M_FMOV (31,31)
274 #define M_FBEQZ(fa,disp) M_BRA (0x31,fa,disp) /* br a == 0.0*/
276 /* macros for special commands (see an Alpha-manual for description) **********/
278 #define M_TRAPB M_MEM (0x18,0,0,0x0000) /* trap barrier*/
280 #define M_S4ADDL(a,b,c) M_OP3 (0x10,0x02, a,b,c,0) /* c = a*4 + b */
281 #define M_S4ADDQ(a,b,c) M_OP3 (0x10,0x22, a,b,c,0) /* c = a*4 + b */
282 #define M_S4SUBL(a,b,c) M_OP3 (0x10,0x0b, a,b,c,0) /* c = a*4 - b */
283 #define M_S4SUBQ(a,b,c) M_OP3 (0x10,0x2b, a,b,c,0) /* c = a*4 - b */
284 #define M_S8ADDL(a,b,c) M_OP3 (0x10,0x12, a,b,c,0) /* c = a*8 + b */
285 #define M_S8ADDQ(a,b,c) M_OP3 (0x10,0x32, a,b,c,0) /* c = a*8 + b */
286 #define M_S8SUBL(a,b,c) M_OP3 (0x10,0x1b, a,b,c,0) /* c = a*8 - b */
287 #define M_S8SUBQ(a,b,c) M_OP3 (0x10,0x3b, a,b,c,0) /* c = a*8 - b */
288 #define M_SAADDQ(a,b,c) M_S8ADDQ(a,b,c) /* c = a*8 + b */
290 #define M_S4ADDL_IMM(a,b,c) M_OP3 (0x10,0x02, a,b,c,1) /* c = a*4 + b */
291 #define M_S4ADDQ_IMM(a,b,c) M_OP3 (0x10,0x22, a,b,c,1) /* c = a*4 + b */
292 #define M_S4SUBL_IMM(a,b,c) M_OP3 (0x10,0x0b, a,b,c,1) /* c = a*4 - b */
293 #define M_S4SUBQ_IMM(a,b,c) M_OP3 (0x10,0x2b, a,b,c,1) /* c = a*4 - b */
294 #define M_S8ADDL_IMM(a,b,c) M_OP3 (0x10,0x12, a,b,c,1) /* c = a*8 + b */
295 #define M_S8ADDQ_IMM(a,b,c) M_OP3 (0x10,0x32, a,b,c,1) /* c = a*8 + b */
296 #define M_S8SUBL_IMM(a,b,c) M_OP3 (0x10,0x1b, a,b,c,1) /* c = a*8 - b */
297 #define M_S8SUBQ_IMM(a,b,c) M_OP3 (0x10,0x3b, a,b,c,1) /* c = a*8 - b */
299 #define M_LLD_U(a,b,disp) M_MEM (0x0b,a,b,disp) /* unalign ld */
300 #define M_LST_U(a,b,disp) M_MEM (0x0f,a,b,disp) /* unalign st */
302 #define M_ZAP(a,b,c) M_OP3 (0x12,0x30, a,b,c,0)
303 #define M_ZAPNOT(a,b,c) M_OP3 (0x12,0x31, a,b,c,0)
305 #define M_ZAP_IMM(a,b,c) M_OP3 (0x12,0x30, a,b,c,1)
306 #define M_ZAPNOT_IMM(a,b,c) M_OP3 (0x12,0x31, a,b,c,1)
308 #define M_BZEXT(a,b) M_ZAPNOT_IMM(a, 0x01, b) /* 8 zeroext */
309 #define M_CZEXT(a,b) M_ZAPNOT_IMM(a, 0x03, b) /* 16 zeroext */
310 #define M_IZEXT(a,b) M_ZAPNOT_IMM(a, 0x0f, b) /* 32 zeroext */
312 #define M_EXTBL(a,b,c) M_OP3 (0x12,0x06, a,b,c,0)
313 #define M_EXTWL(a,b,c) M_OP3 (0x12,0x16, a,b,c,0)
314 #define M_EXTLL(a,b,c) M_OP3 (0x12,0x26, a,b,c,0)
315 #define M_EXTQL(a,b,c) M_OP3 (0x12,0x36, a,b,c,0)
316 #define M_EXTWH(a,b,c) M_OP3 (0x12,0x5a, a,b,c,0)
317 #define M_EXTLH(a,b,c) M_OP3 (0x12,0x6a, a,b,c,0)
318 #define M_EXTQH(a,b,c) M_OP3 (0x12,0x7a, a,b,c,0)
319 #define M_INSBL(a,b,c) M_OP3 (0x12,0x0b, a,b,c,0)
320 #define M_INSWL(a,b,c) M_OP3 (0x12,0x1b, a,b,c,0)
321 #define M_INSLL(a,b,c) M_OP3 (0x12,0x2b, a,b,c,0)
322 #define M_INSQL(a,b,c) M_OP3 (0x12,0x3b, a,b,c,0)
323 #define M_INSWH(a,b,c) M_OP3 (0x12,0x57, a,b,c,0)
324 #define M_INSLH(a,b,c) M_OP3 (0x12,0x67, a,b,c,0)
325 #define M_INSQH(a,b,c) M_OP3 (0x12,0x77, a,b,c,0)
326 #define M_MSKBL(a,b,c) M_OP3 (0x12,0x02, a,b,c,0)
327 #define M_MSKWL(a,b,c) M_OP3 (0x12,0x12, a,b,c,0)
328 #define M_MSKLL(a,b,c) M_OP3 (0x12,0x22, a,b,c,0)
329 #define M_MSKQL(a,b,c) M_OP3 (0x12,0x32, a,b,c,0)
330 #define M_MSKWH(a,b,c) M_OP3 (0x12,0x52, a,b,c,0)
331 #define M_MSKLH(a,b,c) M_OP3 (0x12,0x62, a,b,c,0)
332 #define M_MSKQH(a,b,c) M_OP3 (0x12,0x72, a,b,c,0)
334 #define M_EXTBL_IMM(a,b,c) M_OP3 (0x12,0x06, a,b,c,1)
335 #define M_EXTWL_IMM(a,b,c) M_OP3 (0x12,0x16, a,b,c,1)
336 #define M_EXTLL_IMM(a,b,c) M_OP3 (0x12,0x26, a,b,c,1)
337 #define M_EXTQL_IMM(a,b,c) M_OP3 (0x12,0x36, a,b,c,1)
338 #define M_EXTWH_IMM(a,b,c) M_OP3 (0x12,0x5a, a,b,c,1)
339 #define M_EXTLH_IMM(a,b,c) M_OP3 (0x12,0x6a, a,b,c,1)
340 #define M_EXTQH_IMM(a,b,c) M_OP3 (0x12,0x7a, a,b,c,1)
341 #define M_INSBL_IMM(a,b,c) M_OP3 (0x12,0x0b, a,b,c,1)
342 #define M_INSWL_IMM(a,b,c) M_OP3 (0x12,0x1b, a,b,c,1)
343 #define M_INSLL_IMM(a,b,c) M_OP3 (0x12,0x2b, a,b,c,1)
344 #define M_INSQL_IMM(a,b,c) M_OP3 (0x12,0x3b, a,b,c,1)
345 #define M_INSWH_IMM(a,b,c) M_OP3 (0x12,0x57, a,b,c,1)
346 #define M_INSLH_IMM(a,b,c) M_OP3 (0x12,0x67, a,b,c,1)
347 #define M_INSQH_IMM(a,b,c) M_OP3 (0x12,0x77, a,b,c,1)
348 #define M_MSKBL_IMM(a,b,c) M_OP3 (0x12,0x02, a,b,c,1)
349 #define M_MSKWL_IMM(a,b,c) M_OP3 (0x12,0x12, a,b,c,1)
350 #define M_MSKLL_IMM(a,b,c) M_OP3 (0x12,0x22, a,b,c,1)
351 #define M_MSKQL_IMM(a,b,c) M_OP3 (0x12,0x32, a,b,c,1)
352 #define M_MSKWH_IMM(a,b,c) M_OP3 (0x12,0x52, a,b,c,1)
353 #define M_MSKLH_IMM(a,b,c) M_OP3 (0x12,0x62, a,b,c,1)
354 #define M_MSKQH_IMM(a,b,c) M_OP3 (0x12,0x72, a,b,c,1)
356 #define M_UMULH(a,b,c) M_OP3 (0x13,0x30, a,b,c,0) /* 64 umulh */
358 #define M_UMULH_IMM(a,b,c) M_OP3 (0x13,0x30, a,b,c,1) /* 64 umulh */
360 #define M_CMOVEQ(a,b,c) M_OP3 (0x11,0x24, a,b,c,0) /* a==0 ? c=b */
361 #define M_CMOVNE(a,b,c) M_OP3 (0x11,0x26, a,b,c,0) /* a!=0 ? c=b */
362 #define M_CMOVLT(a,b,c) M_OP3 (0x11,0x44, a,b,c,0) /* a< 0 ? c=b */
363 #define M_CMOVGE(a,b,c) M_OP3 (0x11,0x46, a,b,c,0) /* a>=0 ? c=b */
364 #define M_CMOVLE(a,b,c) M_OP3 (0x11,0x64, a,b,c,0) /* a<=0 ? c=b */
365 #define M_CMOVGT(a,b,c) M_OP3 (0x11,0x66, a,b,c,0) /* a> 0 ? c=b */
367 #define M_CMOVEQ_IMM(a,b,c) M_OP3 (0x11,0x24, a,b,c,1) /* a==0 ? c=b */
368 #define M_CMOVNE_IMM(a,b,c) M_OP3 (0x11,0x26, a,b,c,1) /* a!=0 ? c=b */
369 #define M_CMOVLT_IMM(a,b,c) M_OP3 (0x11,0x44, a,b,c,1) /* a< 0 ? c=b */
370 #define M_CMOVGE_IMM(a,b,c) M_OP3 (0x11,0x46, a,b,c,1) /* a>=0 ? c=b */
371 #define M_CMOVLE_IMM(a,b,c) M_OP3 (0x11,0x64, a,b,c,1) /* a<=0 ? c=b */
372 #define M_CMOVGT_IMM(a,b,c) M_OP3 (0x11,0x66, a,b,c,1) /* a> 0 ? c=b */
374 /* macros for unused commands (see an Alpha-manual for description) ***********/
376 #define M_ANDNOT(a,b,c,const) M_OP3 (0x11,0x08, a,b,c,const) /* c = a &~ b */
377 #define M_ORNOT(a,b,c,const) M_OP3 (0x11,0x28, a,b,c,const) /* c = a |~ b */
378 #define M_XORNOT(a,b,c,const) M_OP3 (0x11,0x48, a,b,c,const) /* c = a ^~ b */
380 #define M_CMPBGE(a,b,c,const) M_OP3 (0x10,0x0f, a,b,c,const)
382 #define M_FCMPUN(a,b,c) M_FOP3 (0x16, 0x0a4, a,b,c) /* unordered */
383 #define M_FCMPLE(a,b,c) M_FOP3 (0x16, 0x0a7, a,b,c) /* c = a<=b */
385 #define M_FCMPUNS(a,b,c) M_FOP3 (0x16, 0x5a4, a,b,c) /* unordered */
386 #define M_FCMPLES(a,b,c) M_FOP3 (0x16, 0x5a7, a,b,c) /* c = a<=b */
388 #define M_FBNEZ(fa,disp) M_BRA (0x35,fa,disp)
389 #define M_FBLEZ(fa,disp) M_BRA (0x33,fa,disp)
391 #define M_JMP_CO(a,b) M_MEM (0x1a,a,b,0xc000) /* call cosub */
394 /* function gen_resolvebranch **************************************************
396 backpatches a branch instruction; Alpha branch instructions are very
397 regular, so it is only necessary to overwrite some fixed bits in the
400 parameters: ip ... pointer to instruction after branch (void*)
401 so ... offset of instruction after branch (s4)
402 to ... offset of branch target (s4)
404 *******************************************************************************/
406 #define gen_resolvebranch(ip,so,to) ((s4*)(ip))[-1]|=((s4)(to)-(so))>>2&0x1fffff
408 #define SOFTNULLPTRCHECK /* soft null pointer check supportet as option */