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ShaderPlayground / deps / luajit / include / lj_target_ppc.h
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1/*
2** Definitions for PPC CPUs.
3** Copyright (C) 2005-2026 Mike Pall. See Copyright Notice in luajit.h
4*/
5
6#ifndef _LJ_TARGET_PPC_H
7#define _LJ_TARGET_PPC_H
8
9/* -- Registers IDs ------------------------------------------------------- */
10
11#define GPRDEF(_) \
12 _(R0) _(SP) _(SYS1) _(R3) _(R4) _(R5) _(R6) _(R7) \
13 _(R8) _(R9) _(R10) _(R11) _(R12) _(SYS2) _(R14) _(R15) \
14 _(R16) _(R17) _(R18) _(R19) _(R20) _(R21) _(R22) _(R23) \
15 _(R24) _(R25) _(R26) _(R27) _(R28) _(R29) _(R30) _(R31)
16#define FPRDEF(_) \
17 _(F0) _(F1) _(F2) _(F3) _(F4) _(F5) _(F6) _(F7) \
18 _(F8) _(F9) _(F10) _(F11) _(F12) _(F13) _(F14) _(F15) \
19 _(F16) _(F17) _(F18) _(F19) _(F20) _(F21) _(F22) _(F23) \
20 _(F24) _(F25) _(F26) _(F27) _(F28) _(F29) _(F30) _(F31)
21#define VRIDDEF(_)
22
23#define RIDENUM(name) RID_##name,
24
25enum {
26 GPRDEF(RIDENUM) /* General-purpose registers (GPRs). */
27 FPRDEF(RIDENUM) /* Floating-point registers (FPRs). */
28 RID_MAX,
29 RID_TMP = RID_R0,
30
31 /* Calling conventions. */
32 RID_RET = RID_R3,
33 RID_RETHI = RID_R3,
34 RID_RETLO = RID_R4,
35 RID_FPRET = RID_F1,
36
37 /* These definitions must match with the *.dasc file(s): */
38 RID_BASE = RID_R14, /* Interpreter BASE. */
39 RID_LPC = RID_R16, /* Interpreter PC. */
40 RID_DISPATCH = RID_R17, /* Interpreter DISPATCH table. */
41 RID_LREG = RID_R18, /* Interpreter L. */
42 RID_JGL = RID_R31, /* On-trace: global_State + 32768. */
43
44 /* Register ranges [min, max) and number of registers. */
45 RID_MIN_GPR = RID_R0,
46 RID_MAX_GPR = RID_R31+1,
47 RID_MIN_FPR = RID_F0,
48 RID_MAX_FPR = RID_F31+1,
49 RID_NUM_GPR = RID_MAX_GPR - RID_MIN_GPR,
50 RID_NUM_FPR = RID_MAX_FPR - RID_MIN_FPR
51};
52
53#define RID_NUM_KREF RID_NUM_GPR
54#define RID_MIN_KREF RID_R0
55
56/* -- Register sets ------------------------------------------------------- */
57
58/* Make use of all registers, except TMP, SP, SYS1, SYS2 and JGL. */
59#define RSET_FIXED \
60 (RID2RSET(RID_TMP)|RID2RSET(RID_SP)|RID2RSET(RID_SYS1)|\
61 RID2RSET(RID_SYS2)|RID2RSET(RID_JGL))
62#define RSET_GPR (RSET_RANGE(RID_MIN_GPR, RID_MAX_GPR) - RSET_FIXED)
63#define RSET_FPR RSET_RANGE(RID_MIN_FPR, RID_MAX_FPR)
64#define RSET_ALL (RSET_GPR|RSET_FPR)
65#define RSET_INIT RSET_ALL
66
67#define RSET_SCRATCH_GPR (RSET_RANGE(RID_R3, RID_R12+1))
68#define RSET_SCRATCH_FPR (RSET_RANGE(RID_F0, RID_F13+1))
69#define RSET_SCRATCH (RSET_SCRATCH_GPR|RSET_SCRATCH_FPR)
70#define REGARG_FIRSTGPR RID_R3
71#define REGARG_LASTGPR RID_R10
72#define REGARG_NUMGPR 8
73#define REGARG_FIRSTFPR RID_F1
74#define REGARG_LASTFPR RID_F8
75#define REGARG_NUMFPR 8
76
77/* -- Spill slots --------------------------------------------------------- */
78
79/* Spill slots are 32 bit wide. An even/odd pair is used for FPRs.
80**
81** SPS_FIXED: Available fixed spill slots in interpreter frame.
82** This definition must match with the *.dasc file(s).
83**
84** SPS_FIRST: First spill slot for general use.
85** [sp+12] tmplo word \
86** [sp+ 8] tmphi word / tmp dword, parameter area for callee
87** [sp+ 4] tmpw, LR of callee
88** [sp+ 0] stack chain
89*/
90#define SPS_FIXED 7
91#define SPS_FIRST 4
92
93/* Stack offsets for temporary slots. Used for FP<->int conversions etc. */
94#define SPOFS_TMPW 4
95#define SPOFS_TMP 8
96#define SPOFS_TMPHI 8
97#define SPOFS_TMPLO 12
98
99#define sps_scale(slot) (4 * (int32_t)(slot))
100#define sps_align(slot) (((slot) - SPS_FIXED + 3) & ~3)
101
102/* -- Exit state ---------------------------------------------------------- */
103
104/* This definition must match with the *.dasc file(s). */
105typedef struct {
106 lua_Number fpr[RID_NUM_FPR]; /* Floating-point registers. */
107 int32_t gpr[RID_NUM_GPR]; /* General-purpose registers. */
108 int32_t spill[256]; /* Spill slots. */
109} ExitState;
110
111/* Highest exit + 1 indicates stack check. */
112#define EXITSTATE_CHECKEXIT 1
113
114/* Return the address of a per-trace exit stub. */
115static LJ_AINLINE uint32_t *exitstub_trace_addr_(uint32_t *p, uint32_t exitno)
116{
117 while (*p == 0x60000000) p++; /* Skip PPCI_NOP. */
118 return p + 3 + exitno;
119}
120/* Avoid dependence on lj_jit.h if only including lj_target.h. */
121#define exitstub_trace_addr(T, exitno) \
122 exitstub_trace_addr_((MCode *)((char *)(T)->mcode + (T)->szmcode), (exitno))
123
124/* -- Instructions -------------------------------------------------------- */
125
126/* Instruction fields. */
127#define PPCF_CC(cc) ((((cc) & 3) << 16) | (((cc) & 4) << 22))
128#define PPCF_T(r) ((r) << 21)
129#define PPCF_A(r) ((r) << 16)
130#define PPCF_B(r) ((r) << 11)
131#define PPCF_C(r) ((r) << 6)
132#define PPCF_MB(n) ((n) << 6)
133#define PPCF_ME(n) ((n) << 1)
134#define PPCF_Y 0x00200000
135#define PPCF_DOT 0x00000001
136
137typedef enum PPCIns {
138 /* Integer instructions. */
139 PPCI_MR = 0x7c000378,
140 PPCI_NOP = 0x60000000,
141
142 PPCI_LI = 0x38000000,
143 PPCI_LIS = 0x3c000000,
144
145 PPCI_ADD = 0x7c000214,
146 PPCI_ADDC = 0x7c000014,
147 PPCI_ADDO = 0x7c000614,
148 PPCI_ADDE = 0x7c000114,
149 PPCI_ADDZE = 0x7c000194,
150 PPCI_ADDME = 0x7c0001d4,
151 PPCI_ADDI = 0x38000000,
152 PPCI_ADDIS = 0x3c000000,
153 PPCI_ADDIC = 0x30000000,
154 PPCI_ADDICDOT = 0x34000000,
155
156 PPCI_SUBF = 0x7c000050,
157 PPCI_SUBFC = 0x7c000010,
158 PPCI_SUBFO = 0x7c000450,
159 PPCI_SUBFE = 0x7c000110,
160 PPCI_SUBFZE = 0x7c000190,
161 PPCI_SUBFME = 0x7c0001d0,
162 PPCI_SUBFIC = 0x20000000,
163
164 PPCI_NEG = 0x7c0000d0,
165
166 PPCI_AND = 0x7c000038,
167 PPCI_ANDC = 0x7c000078,
168 PPCI_NAND = 0x7c0003b8,
169 PPCI_ANDIDOT = 0x70000000,
170 PPCI_ANDISDOT = 0x74000000,
171
172 PPCI_OR = 0x7c000378,
173 PPCI_NOR = 0x7c0000f8,
174 PPCI_ORI = 0x60000000,
175 PPCI_ORIS = 0x64000000,
176
177 PPCI_XOR = 0x7c000278,
178 PPCI_EQV = 0x7c000238,
179 PPCI_XORI = 0x68000000,
180 PPCI_XORIS = 0x6c000000,
181
182 PPCI_CMPW = 0x7c000000,
183 PPCI_CMPLW = 0x7c000040,
184 PPCI_CMPWI = 0x2c000000,
185 PPCI_CMPLWI = 0x28000000,
186
187 PPCI_MULLW = 0x7c0001d6,
188 PPCI_MULLI = 0x1c000000,
189 PPCI_MULLWO = 0x7c0005d6,
190
191 PPCI_EXTSB = 0x7c000774,
192 PPCI_EXTSH = 0x7c000734,
193
194 PPCI_SLW = 0x7c000030,
195 PPCI_SRW = 0x7c000430,
196 PPCI_SRAW = 0x7c000630,
197 PPCI_SRAWI = 0x7c000670,
198
199 PPCI_RLWNM = 0x5c000000,
200 PPCI_RLWINM = 0x54000000,
201 PPCI_RLWIMI = 0x50000000,
202
203 PPCI_B = 0x48000000,
204 PPCI_BL = 0x48000001,
205 PPCI_BC = 0x40800000,
206 PPCI_BCL = 0x40800001,
207 PPCI_BCTR = 0x4e800420,
208 PPCI_BCTRL = 0x4e800421,
209
210 PPCI_CRANDC = 0x4c000102,
211 PPCI_CRXOR = 0x4c000182,
212 PPCI_CRAND = 0x4c000202,
213 PPCI_CREQV = 0x4c000242,
214 PPCI_CRORC = 0x4c000342,
215 PPCI_CROR = 0x4c000382,
216
217 PPCI_MFLR = 0x7c0802a6,
218 PPCI_MTCTR = 0x7c0903a6,
219
220 PPCI_MCRXR = 0x7c000400,
221
222 /* Load/store instructions. */
223 PPCI_LWZ = 0x80000000,
224 PPCI_LBZ = 0x88000000,
225 PPCI_STW = 0x90000000,
226 PPCI_STB = 0x98000000,
227 PPCI_LHZ = 0xa0000000,
228 PPCI_LHA = 0xa8000000,
229 PPCI_STH = 0xb0000000,
230
231 PPCI_STWU = 0x94000000,
232
233 PPCI_LFS = 0xc0000000,
234 PPCI_LFD = 0xc8000000,
235 PPCI_STFS = 0xd0000000,
236 PPCI_STFD = 0xd8000000,
237
238 PPCI_LWZX = 0x7c00002e,
239 PPCI_LBZX = 0x7c0000ae,
240 PPCI_STWX = 0x7c00012e,
241 PPCI_STBX = 0x7c0001ae,
242 PPCI_LHZX = 0x7c00022e,
243 PPCI_LHAX = 0x7c0002ae,
244 PPCI_STHX = 0x7c00032e,
245
246 PPCI_LWBRX = 0x7c00042c,
247 PPCI_STWBRX = 0x7c00052c,
248
249 PPCI_LFSX = 0x7c00042e,
250 PPCI_LFDX = 0x7c0004ae,
251 PPCI_STFSX = 0x7c00052e,
252 PPCI_STFDX = 0x7c0005ae,
253
254 /* FP instructions. */
255 PPCI_FMR = 0xfc000090,
256 PPCI_FNEG = 0xfc000050,
257 PPCI_FABS = 0xfc000210,
258
259 PPCI_FRSP = 0xfc000018,
260 PPCI_FCTIWZ = 0xfc00001e,
261
262 PPCI_FADD = 0xfc00002a,
263 PPCI_FSUB = 0xfc000028,
264 PPCI_FMUL = 0xfc000032,
265 PPCI_FDIV = 0xfc000024,
266 PPCI_FSQRT = 0xfc00002c,
267
268 PPCI_FMADD = 0xfc00003a,
269 PPCI_FMSUB = 0xfc000038,
270 PPCI_FNMSUB = 0xfc00003c,
271
272 PPCI_FCMPU = 0xfc000000,
273 PPCI_FSEL = 0xfc00002e,
274} PPCIns;
275
276typedef enum PPCCC {
277 CC_GE, CC_LE, CC_NE, CC_NS, CC_LT, CC_GT, CC_EQ, CC_SO
278} PPCCC;
279
280#endif