[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [ADD] PPC processor emulation
|
From: |
J. Mayer |
|
Subject: |
Re: [Qemu-devel] [ADD] PPC processor emulation |
|
Date: |
18 Nov 2003 08:59:57 +0100 |
target-ppc__translate.c.diff
Micro ops generator for PPC target.
diff -urNbB -x CVS qemu-current/target-ppc/translate.c
qemu/target-ppc/translate.c
--- qemu-current/target-ppc/translate.c Thu Jan 1 01:00:00 1970
+++ qemu/target-ppc/translate.c Tue Nov 11 02:52:04 2003
@@ -0,0 +1,2376 @@
+/*
+ * PPC emulation for qemu: main translation routines.
+ *
+ * Copyright (c) 2003 Jocelyn Mayer
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include "dyngen-exec.h"
+#include "cpu.h"
+#include "exec.h"
+#include "disas.h"
+
+//#define DO_SINGLE_STEP
+//#define DO_STEP_FLUSH
+
+enum {
+#define DEF(s, n, copy_size) INDEX_op_ ## s,
+#include "opc.h"
+#undef DEF
+ NB_OPS,
+};
+
+static uint16_t *gen_opc_ptr;
+static uint32_t *gen_opparam_ptr;
+
+#include "gen-op.h"
+#include "select.h"
+
+static uint8_t spr_access[1024 / 2];
+
+/* internal defines */
+typedef struct DisasContext {
+ struct TranslationBlock *tb;
+ uint32_t *nip;
+ uint32_t opcode;
+ int exception;
+ int retcode;
+ /* Time base */
+ uint32_t tb_offset;
+ int supervisor;
+} DisasContext;
+
+typedef struct opc_handler_t {
+ /* invalid bits */
+ uint32_t inval;
+ /* handler */
+ void (*handler)(DisasContext *ctx);
+} opc_handler_t;
+
+#define SET_RETVAL(n) \
+do { \
+ if ((n) != 0) { \
+ ctx->exception = (n); \
+ } \
+ return; \
+} while (0)
+
+#define GET_RETVAL(func, __opcode) \
+({ \
+ (func)(&ctx); \
+ ctx.exception; \
+})
+
+#define GEN_HANDLER(name, opc1, opc2, opc3, inval, type) \
+static void gen_##name (DisasContext *ctx); \
+GEN_OPCODE(name, opc1, opc2, opc3, inval, type); \
+static void gen_##name (DisasContext *ctx)
+
+/* Instruction types */
+enum {
+ PPC_INTEGER = 0x0001, /* CPU has integer operations instructions */
+ PPC_FLOAT = 0x0002, /* CPU has floating point operations instructions */
+ PPC_FLOW = 0x0004, /* CPU has flow control instructions */
+ PPC_MEM = 0x0008, /* CPU has virtual memory instructions */
+ PPC_MISC = 0x0010, /* CPU has spr/msr access instructions */
+ PPC_EXTERN = 0x0020, /* CPU has external control instructions */
+ PPC_SEGMENT = 0x0040, /* CPU has memory segment instructions */
+};
+
+typedef struct opcode_t {
+ unsigned char opc1, opc2, opc3;
+ uint32_t type;
+ opc_handler_t handler;
+} opcode_t;
+
+/* XXX: move that elsewhere */
+extern FILE *logfile;
+extern int loglevel;
+
+/* XXX: shouldn't stay all alone here ! */
+static int reserve = 0;
+
+/*** Instruction decoding ***/
+#define EXTRACT_HELPER(name, shift, nb) \
+static inline uint32_t name (uint32_t opcode) \
+{ \
+ return (opcode >> (shift)) & ((1 << (nb)) - 1); \
+}
+
+#define EXTRACT_SHELPER(name, shift, nb) \
+static inline int32_t name (uint32_t opcode) \
+{ \
+ return s_ext16((opcode >> (shift)) & ((1 << (nb)) - 1)); \
+}
+
+/* Opcode part 1 */
+EXTRACT_HELPER(opc1, 26, 6);
+/* Opcode part 2 */
+EXTRACT_HELPER(opc2, 1, 5);
+/* Opcode part 3 */
+EXTRACT_HELPER(opc3, 6, 5);
+/* Update Cr0 flags */
+EXTRACT_HELPER(Rc, 0, 1);
+/* Destination */
+EXTRACT_HELPER(rD, 21, 5);
+/* Source */
+EXTRACT_HELPER(rS, 21, 5);
+/* First operand */
+EXTRACT_HELPER(rA, 16, 5);
+/* Second operand */
+EXTRACT_HELPER(rB, 11, 5);
+/* Third operand */
+EXTRACT_HELPER(rC, 6, 5);
+/*** Get CRn ***/
+EXTRACT_HELPER(crfD, 23, 3);
+EXTRACT_HELPER(crfS, 18, 3);
+EXTRACT_HELPER(crbD, 21, 5);
+EXTRACT_HELPER(crbA, 16, 5);
+EXTRACT_HELPER(crbB, 11, 5);
+/* SPR / TBL */
+EXTRACT_HELPER(SPR, 11, 10);
+/*** Get constants ***/
+EXTRACT_HELPER(IMM, 12, 8);
+/* 16 bits signed immediate value */
+EXTRACT_SHELPER(SIMM, 0, 16);
+/* 16 bits unsigned immediate value */
+EXTRACT_HELPER(UIMM, 0, 16);
+/* Bit count */
+EXTRACT_HELPER(NB, 11, 5);
+/* Shift count */
+EXTRACT_HELPER(SH, 11, 5);
+/* Mask start */
+EXTRACT_HELPER(MB, 6, 5);
+/* Mask end */
+EXTRACT_HELPER(ME, 1, 5);
+
+EXTRACT_HELPER(CRM, 12, 8);
+EXTRACT_HELPER(FM, 17, 8);
+EXTRACT_HELPER(SR, 16, 4);
+/*** Jump target decoding ***/
+/* Displacement */
+EXTRACT_SHELPER(d, 0, 16);
+/* Immediate address */
+static inline uint32_t LI (uint32_t opcode)
+{
+ return (opcode >> 0) & 0x03FFFFFC;
+}
+
+static inline uint32_t BD (uint32_t opcode)
+{
+ return (opcode >> 0) & 0xFFFC;
+}
+
+EXTRACT_HELPER(BO, 21, 5);
+EXTRACT_HELPER(BI, 16, 5);
+/* Absolute/relative address */
+EXTRACT_HELPER(AA, 1, 1);
+/* Link */
+EXTRACT_HELPER(LK, 0, 1);
+
+/* Create a mask between <start> and <end> bits */
+static inline uint32_t MASK (uint32_t start, uint32_t end)
+{
+ uint32_t ret;
+
+ ret = (((uint32_t)(-1)) >> (start)) ^ (((uint32_t)(-1) >> (end)) >> 1);
+ if (start > end)
+ return ~ret;
+
+ return ret;
+}
+
+#define GEN_OPCODE(name, op1, op2, op3, invl, _typ) \
+__attribute__ ((section(".opcodes"), unused)) \
+static opcode_t opc_##name = { \
+ .opc1 = op1, \
+ .opc2 = op2, \
+ .opc3 = op3, \
+ .type = _typ, \
+ .handler = { \
+ .inval = invl, \
+ .handler = &gen_##name, \
+ }, \
+}
+
+#define GEN_OPCODE_MARK(name) \
+__attribute__ ((section(".opcodes"), unused)) \
+static opcode_t opc_##name = { \
+ .opc1 = 0xFF, \
+ .opc2 = 0xFF, \
+ .opc3 = 0xFF, \
+ .type = 0x00, \
+ .handler = { \
+ .inval = 0x00000000, \
+ .handler = NULL, \
+ }, \
+}
+
+/* Start opcode list */
+GEN_OPCODE_MARK(start);
+
+/* Invalid instruction */
+GEN_HANDLER(invalid, 0x00, 0x00, 0x00, 0xFFFFFFFF, 0)
+{
+ /* Branch to next instruction to force nip update */
+ gen_op_b((uint32_t)ctx->nip);
+ SET_RETVAL(EXCP_INVAL);
+}
+
+static opc_handler_t invalid_handler = {
+ .inval = 0xFFFFFFFF,
+ .handler = gen_invalid,
+};
+
+/*** Integer arithmetic ***/
+#define __GEN_INT_ARITH2(name, opc1, opc2, opc3, inval) \
+GEN_HANDLER(name, opc1, opc2, opc3, inval, PPC_INTEGER) \
+{ \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_load_gpr_T1(rB(ctx->opcode)); \
+ gen_op_##name(); \
+ if (Rc(ctx->opcode) != 0) \
+ gen_op_set_Rc0(); \
+ gen_op_store_T0_gpr(rD(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+#define __GEN_INT_ARITH2_O(name, opc1, opc2, opc3, inval) \
+GEN_HANDLER(name, opc1, opc2, opc3, inval, PPC_INTEGER) \
+{ \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_load_gpr_T1(rB(ctx->opcode)); \
+ gen_op_##name(); \
+ if (Rc(ctx->opcode) != 0) \
+ gen_op_set_Rc0_ov(); \
+ gen_op_store_T0_gpr(rD(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+#define __GEN_INT_ARITH1(name, opc1, opc2, opc3) \
+GEN_HANDLER(name, opc1, opc2, opc3, 0x0000F800, PPC_INTEGER) \
+{ \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_##name(); \
+ if (Rc(ctx->opcode) != 0) \
+ gen_op_set_Rc0(); \
+ gen_op_store_T0_gpr(rD(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+#define __GEN_INT_ARITH1_O(name, opc1, opc2, opc3) \
+GEN_HANDLER(name, opc1, opc2, opc3, 0x0000F800, PPC_INTEGER) \
+{ \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_##name(); \
+ if (Rc(ctx->opcode) != 0) \
+ gen_op_set_Rc0_ov(); \
+ gen_op_store_T0_gpr(rD(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+/* Two operands arithmetic functions */
+#define GEN_INT_ARITH2(name, opc1, opc2, opc3) \
+__GEN_INT_ARITH2(name, opc1, opc2, opc3, 0x00000000) \
+__GEN_INT_ARITH2_O(name##o, opc1, opc2, opc3 | 0x10, 0x00000000)
+
+/* Two operands arithmetic functions with no overflow allowed */
+#define GEN_INT_ARITHN(name, opc1, opc2, opc3) \
+__GEN_INT_ARITH2(name, opc1, opc2, opc3, 0x00000400)
+
+/* One operand arithmetic functions */
+#define GEN_INT_ARITH1(name, opc1, opc2, opc3) \
+__GEN_INT_ARITH1(name, opc1, opc2, opc3) \
+__GEN_INT_ARITH1_O(name##o, opc1, opc2, opc3 | 0x10)
+
+/* add add. addo addo. */
+GEN_INT_ARITH2 (add, 0x1F, 0x0A, 0x08);
+/* addc addc. addco addco. */
+GEN_INT_ARITH2 (addc, 0x1F, 0x0A, 0x00);
+/* adde adde. addeo addeo. */
+GEN_INT_ARITH2 (adde, 0x1F, 0x0A, 0x04);
+/* addme addme. addmeo addmeo. */
+GEN_INT_ARITH1 (addme, 0x1F, 0x0A, 0x07);
+/* addze addze. addzeo addzeo. */
+GEN_INT_ARITH1 (addze, 0x1F, 0x0A, 0x06);
+/* divw divw. divwo divwo. */
+GEN_INT_ARITH2 (divw, 0x1F, 0x0B, 0x0F);
+/* divwu divwu. divwuo divwuo. */
+GEN_INT_ARITH2 (divwu, 0x1F, 0x0B, 0x0E);
+/* mulhw mulhw. */
+GEN_INT_ARITHN (mulhw, 0x1F, 0x0B, 0x02);
+/* mulhwu mulhwu. */
+GEN_INT_ARITHN (mulhwu, 0x1F, 0x0B, 0x00);
+/* mullw mullw. mullwo mullwo. */
+GEN_INT_ARITH2 (mullw, 0x1F, 0x0B, 0x07);
+/* neg neg. nego nego. */
+GEN_INT_ARITH1 (neg, 0x1F, 0x08, 0x03);
+/* subf subf. subfo subfo. */
+GEN_INT_ARITH2 (subf, 0x1F, 0x08, 0x01);
+/* subfc subfc. subfco subfco. */
+GEN_INT_ARITH2 (subfc, 0x1F, 0x08, 0x00);
+/* subfe subfe. subfeo subfeo. */
+GEN_INT_ARITH2 (subfe, 0x1F, 0x08, 0x04);
+/* subfme subfme. subfmeo subfmeo. */
+GEN_INT_ARITH1 (subfme, 0x1F, 0x08, 0x07);
+/* subfze subfze. subfzeo subfzeo. */
+GEN_INT_ARITH1 (subfze, 0x1F, 0x08, 0x06);
+/* addi */
+GEN_HANDLER(addi, 0x0E, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ int32_t simm = SIMM(ctx->opcode);
+
+ if (rA(ctx->opcode) == 0) {
+ gen_op_set_T0(simm);
+ } else {
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ gen_op_addi(simm);
+ }
+ gen_op_store_T0_gpr(rD(ctx->opcode));
+ SET_RETVAL(0);
+}
+/* addic */
+GEN_HANDLER(addic, 0x0C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ gen_op_addic(SIMM(ctx->opcode));
+ gen_op_store_T0_gpr(rD(ctx->opcode));
+ SET_RETVAL(0);
+}
+/* addic. */
+GEN_HANDLER(addic_, 0x0D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ gen_op_addic(SIMM(ctx->opcode));
+ gen_op_set_Rc0();
+ gen_op_store_T0_gpr(rD(ctx->opcode));
+ SET_RETVAL(0);
+}
+/* addis */
+GEN_HANDLER(addis, 0x0F, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ int32_t simm = SIMM(ctx->opcode);
+
+ if (rA(ctx->opcode) == 0) {
+ gen_op_set_T0(simm << 16);
+ } else {
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ gen_op_addi(simm << 16);
+ }
+ gen_op_store_T0_gpr(rD(ctx->opcode));
+ SET_RETVAL(0);
+}
+/* mulli */
+GEN_HANDLER(mulli, 0x07, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ gen_op_mulli(SIMM(ctx->opcode));
+ gen_op_store_T0_gpr(rD(ctx->opcode));
+ SET_RETVAL(0);
+}
+/* subfic */
+GEN_HANDLER(subfic, 0x08, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ gen_op_subfic(SIMM(ctx->opcode));
+ gen_op_store_T0_gpr(rD(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/*** Integer comparison ***/
+#define GEN_CMP(name, opc) \
+GEN_HANDLER(name, 0x1F, 0x00, opc, 0x00400000, PPC_INTEGER) \
+{ \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_load_gpr_T1(rB(ctx->opcode)); \
+ gen_op_##name(); \
+ gen_op_store_T0_crf(crfD(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+/* cmp */
+GEN_CMP(cmp, 0x00);
+/* cmpi */
+GEN_HANDLER(cmpi, 0x0B, 0xFF, 0xFF, 0x00400000, PPC_INTEGER)
+{
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ gen_op_cmpi(SIMM(ctx->opcode));
+ gen_op_store_T0_crf(crfD(ctx->opcode));
+ SET_RETVAL(0);
+}
+/* cmpl */
+GEN_CMP(cmpl, 0x01);
+/* cmpli */
+GEN_HANDLER(cmpli, 0x0A, 0xFF, 0xFF, 0x00400000, PPC_INTEGER)
+{
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ gen_op_cmpli(UIMM(ctx->opcode));
+ gen_op_store_T0_crf(crfD(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/*** Integer logical ***/
+#define __GEN_LOGICAL2(name, opc2, opc3) \
+GEN_HANDLER(name, 0x1F, opc2, opc3, 0x00000000, PPC_INTEGER) \
+{ \
+ gen_op_load_gpr_T0(rS(ctx->opcode)); \
+ gen_op_load_gpr_T1(rB(ctx->opcode)); \
+ gen_op_##name(); \
+ if (Rc(ctx->opcode) != 0) \
+ gen_op_set_Rc0(); \
+ gen_op_store_T0_gpr(rA(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+#define GEN_LOGICAL2(name, opc) \
+__GEN_LOGICAL2(name, 0x1C, opc)
+
+#define GEN_LOGICAL1(name, opc) \
+GEN_HANDLER(name, 0x1F, 0x1A, opc, 0x00000000, PPC_INTEGER) \
+{ \
+ gen_op_load_gpr_T0(rS(ctx->opcode)); \
+ gen_op_##name(); \
+ if (Rc(ctx->opcode) != 0) \
+ gen_op_set_Rc0(); \
+ gen_op_store_T0_gpr(rA(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+/* and & and. */
+GEN_LOGICAL2(and, 0x00);
+/* andc & andc. */
+GEN_LOGICAL2(andc, 0x01);
+/* andi. */
+GEN_HANDLER(andi_, 0x1C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ gen_op_andi_(UIMM(ctx->opcode));
+ gen_op_set_Rc0();
+ gen_op_store_T0_gpr(rA(ctx->opcode));
+ SET_RETVAL(0);
+}
+/* andis. */
+GEN_HANDLER(andis_, 0x1D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ gen_op_andi_(UIMM(ctx->opcode) << 16);
+ gen_op_set_Rc0();
+ gen_op_store_T0_gpr(rA(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/* cntlzw */
+GEN_LOGICAL1(cntlzw, 0x00);
+/* eqv & eqv. */
+GEN_LOGICAL2(eqv, 0x08);
+/* extsb & extsb. */
+GEN_LOGICAL1(extsb, 0x1D);
+/* extsh & extsh. */
+GEN_LOGICAL1(extsh, 0x1C);
+/* nand & nand. */
+GEN_LOGICAL2(nand, 0x0E);
+/* nor & nor. */
+GEN_LOGICAL2(nor, 0x03);
+/* or & or. */
+GEN_LOGICAL2(or, 0x0D);
+/* orc & orc. */
+GEN_LOGICAL2(orc, 0x0C);
+/* xor & xor. */
+GEN_LOGICAL2(xor, 0x09);
+/* ori */
+GEN_HANDLER(ori, 0x18, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ uint32_t uimm = UIMM(ctx->opcode);
+
+#if 0
+ if (uimm == 0) {
+ if (rA(ctx->opcode) != rS(ctx->opcode)) {
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ gen_op_store_T0_gpr(rA(ctx->opcode));
+ }
+ } else
+#endif
+ {
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ gen_op_ori(uimm);
+ gen_op_store_T0_gpr(rA(ctx->opcode));
+ }
+ SET_RETVAL(0);
+}
+/* oris */
+GEN_HANDLER(oris, 0x19, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ uint32_t uimm = UIMM(ctx->opcode);
+
+#if 0
+ if (uimm == 0) {
+ if (rA(ctx->opcode) != rS(ctx->opcode)) {
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ gen_op_store_T0_gpr(rA(ctx->opcode));
+ }
+ } else
+#endif
+ {
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ gen_op_ori(uimm << 16);
+ gen_op_store_T0_gpr(rA(ctx->opcode));
+ }
+ SET_RETVAL(0);
+}
+/* xori */
+GEN_HANDLER(xori, 0x1A, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ gen_op_xori(UIMM(ctx->opcode));
+ gen_op_store_T0_gpr(rA(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/* xoris */
+GEN_HANDLER(xoris, 0x1B, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ gen_op_xori(UIMM(ctx->opcode) << 16);
+ gen_op_store_T0_gpr(rA(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/*** Integer rotate ***/
+/* rlwimi & rlwimi. */
+GEN_HANDLER(rlwimi, 0x14, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ uint32_t mb, me;
+
+ mb = MB(ctx->opcode);
+ me = ME(ctx->opcode);
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ gen_op_rlwimi(SH(ctx->opcode), MASK(mb, me), ~MASK(mb, me));
+ if (Rc(ctx->opcode) != 0)
+ gen_op_set_Rc0();
+ gen_op_store_T0_gpr(rA(ctx->opcode));
+ SET_RETVAL(0);
+}
+/* rlwinm & rlwinm. */
+GEN_HANDLER(rlwinm, 0x15, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ uint32_t mb, me, sh;
+
+ sh = SH(ctx->opcode);
+ mb = MB(ctx->opcode);
+ me = ME(ctx->opcode);
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ if (loglevel > 0) {
+ fprintf(logfile, "%s sh=%u mb=%u me=%u MASK=0x%08x\n",
+ __func__, sh, mb, me, MASK(mb, me));
+ }
+ if (mb == 0) {
+ if (me == 31) {
+ gen_op_rotlwi(sh);
+ goto store;
+ } else if (me == (31 - sh)) {
+ gen_op_slwi(sh);
+ goto store;
+ } else if (sh == 0) {
+ gen_op_andi_(MASK(0, me));
+ goto store;
+ }
+ } else if (me == 31) {
+ if (sh == (32 - mb)) {
+ gen_op_srwi(mb);
+ goto store;
+ } else if (sh == 0) {
+ gen_op_andi_(MASK(mb, 31));
+ goto store;
+ }
+ }
+ gen_op_rlwinm(sh, MASK(mb, me));
+store:
+ if (Rc(ctx->opcode) != 0)
+ gen_op_set_Rc0();
+ gen_op_store_T0_gpr(rA(ctx->opcode));
+ SET_RETVAL(0);
+}
+/* rlwnm & rlwnm. */
+GEN_HANDLER(rlwnm, 0x17, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ uint32_t mb, me;
+
+ mb = MB(ctx->opcode);
+ me = ME(ctx->opcode);
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ gen_op_load_gpr_T1(rB(ctx->opcode));
+ if (mb == 0 && me == 31) {
+ gen_op_rotl();
+ } else
+ {
+ gen_op_rlwnm(MASK(mb, me));
+ }
+ if (Rc(ctx->opcode) != 0)
+ gen_op_set_Rc0();
+ gen_op_store_T0_gpr(rA(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/*** Integer shift ***/
+/* slw & slw. */
+__GEN_LOGICAL2(slw, 0x18, 0x00);
+/* sraw & sraw. */
+__GEN_LOGICAL2(sraw, 0x18, 0x18);
+/* srawi & srawi. */
+GEN_HANDLER(srawi, 0x1F, 0x18, 0x19, 0x00000000, PPC_INTEGER)
+{
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ gen_op_srawi(SH(ctx->opcode), MASK(32 - SH(ctx->opcode), 31));
+ if (Rc(ctx->opcode) != 0)
+ gen_op_set_Rc0();
+ gen_op_store_T0_gpr(rA(ctx->opcode));
+ SET_RETVAL(0);
+}
+/* srw & srw. */
+__GEN_LOGICAL2(srw, 0x18, 0x10);
+
+/*** Floating-Point arithmetic ***/
+/* fadd */
+GEN_HANDLER(fadd, 0x3F, 0x15, 0xFF, 0x000007C0, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fadds */
+GEN_HANDLER(fadds, 0x3B, 0x15, 0xFF, 0x000007C0, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fdiv */
+GEN_HANDLER(fdiv, 0x3F, 0x12, 0xFF, 0x000007C0, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fdivs */
+GEN_HANDLER(fdivs, 0x3B, 0x12, 0xFF, 0x000007C0, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fmul */
+GEN_HANDLER(fmul, 0x3F, 0x19, 0xFF, 0x0000F800, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fmuls */
+GEN_HANDLER(fmuls, 0x3B, 0x19, 0xFF, 0x0000F800, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fres */
+GEN_HANDLER(fres, 0x3B, 0x18, 0xFF, 0x001807C0, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* frsqrte */
+GEN_HANDLER(frsqrte, 0x3F, 0x1A, 0xFF, 0x001807C0, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fsel */
+GEN_HANDLER(fsel, 0x3F, 0x17, 0xFF, 0x00000000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fsub */
+GEN_HANDLER(fsub, 0x3F, 0x14, 0xFF, 0x000007C0, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fsubs */
+GEN_HANDLER(fsubs, 0x3B, 0x14, 0xFF, 0x000007C0, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* Optional: */
+/* fsqrt */
+GEN_HANDLER(fsqrt, 0x3F, 0x16, 0xFF, 0x001807C0, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fsqrts */
+GEN_HANDLER(fsqrts, 0x3B, 0x16, 0xFF, 0x001807C0, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/*** Floating-Point multiply-and-add ***/
+/* fmadd */
+GEN_HANDLER(fmadd, 0x3F, 0x1D, 0xFF, 0x00000000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fmadds */
+GEN_HANDLER(fmadds, 0x3B, 0x1D, 0xFF, 0x00000000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fmsub */
+GEN_HANDLER(fmsub, 0x3F, 0x1C, 0xFF, 0x00000000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fmsubs */
+GEN_HANDLER(fmsubs, 0x3B, 0x1C, 0xFF, 0x00000000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fnmadd */
+GEN_HANDLER(fnmadd, 0x3F, 0x1F, 0xFF, 0x00000000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fnmadds */
+GEN_HANDLER(fnmadds, 0x3B, 0x1F, 0xFF, 0x00000000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fnmsub */
+GEN_HANDLER(fnmsub, 0x3F, 0x1E, 0xFF, 0x00000000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fnmsubs */
+GEN_HANDLER(fnmsubs, 0x3B, 0x1E, 0xFF, 0x00000000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/*** Floating-Point round & convert ***/
+/* fctiw */
+GEN_HANDLER(fctiw, 0x3F, 0x0E, 0xFF, 0x001F0000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fctiwz */
+GEN_HANDLER(fctiwz, 0x3F, 0x0F, 0xFF, 0x001F0000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* frsp */
+GEN_HANDLER(frsp, 0x3F, 0x0C, 0xFF, 0x001F0000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/*** Floating-Point compare ***/
+/* fcmpo */
+GEN_HANDLER(fcmpo, 0x3F, 0x00, 0x00, 0x00600001, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fcmpu */
+GEN_HANDLER(fcmpu, 0x3F, 0x00, 0x01, 0x00600001, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/*** Floating-Point status & ctrl register ***/
+/* mcrfs */
+GEN_HANDLER(mcrfs, 0x3F, 0x00, 0x02, 0x0063F801, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* mffs */
+GEN_HANDLER(mffs, 0x3F, 0x07, 0x12, 0x001FF800, PPC_FLOAT)
+{
+ gen_op_load_fpscr(rD(ctx->opcode));
+ if (Rc(ctx->opcode)) {
+ /* Update CR1 */
+ }
+ SET_RETVAL(0);
+}
+
+/* mtfsb0 */
+GEN_HANDLER(mtfsb0, 0x3F, 0x06, 0x02, 0x001FF800, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* mtfsb1 */
+GEN_HANDLER(mtfsb1, 0x3F, 0x06, 0x01, 0x001FF800, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* mtfsf */
+GEN_HANDLER(mtfsf, 0x3F, 0x07, 0x16, 0x02010000, PPC_FLOAT)
+{
+ gen_op_store_fpscr(FM(ctx->opcode), rB(ctx->opcode));
+ if (Rc(ctx->opcode)) {
+ /* Update CR1 */
+ }
+ SET_RETVAL(0);
+}
+
+/* mtfsfi */
+GEN_HANDLER(mtfsfi, 0x3F, 0x06, 0x04, 0x006f0800, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/*** Integer load ***/
+#define GEN_ILDZ(width, opc) \
+GEN_HANDLER(l##width, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \
+{ \
+ uint32_t simm = SIMM(ctx->opcode); \
+ if (rA(ctx->opcode) == 0) { \
+ gen_op_l##width##_z(simm); \
+ } else { \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_l##width (simm); \
+ } \
+ gen_op_store_T1_gpr(rD(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+#define GEN_ILDZU(width, opc) \
+GEN_HANDLER(l##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \
+{ \
+ if (rA(ctx->opcode) == 0 || \
+ rA(ctx->opcode) == rD(ctx->opcode)) \
+ SET_RETVAL(EXCP_INVAL); \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_l##width(SIMM(ctx->opcode)); \
+ gen_op_store_T1_gpr(rD(ctx->opcode)); \
+ gen_op_store_T0_gpr(rA(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+#define GEN_ILDZUX(width, opc) \
+GEN_HANDLER(l##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_INTEGER) \
+{ \
+ if (rA(ctx->opcode) == 0 || \
+ rA(ctx->opcode) == rD(ctx->opcode)) \
+ SET_RETVAL(EXCP_INVAL); \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_load_gpr_T1(rB(ctx->opcode)); \
+ gen_op_l##width##x(); \
+ gen_op_store_T1_gpr(rD(ctx->opcode)); \
+ gen_op_store_T0_gpr(rA(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+#define GEN_ILDZX(width, opc2, opc3) \
+GEN_HANDLER(l##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_INTEGER) \
+{ \
+ if (rA(ctx->opcode) == 0) { \
+ gen_op_load_gpr_T0(rB(ctx->opcode)); \
+ gen_op_l##width##x_z(); \
+ } else { \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_load_gpr_T1(rB(ctx->opcode)); \
+ gen_op_l##width##x(); \
+ } \
+ gen_op_store_T1_gpr(rD(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+#define GEN_ILD(width, op) \
+GEN_ILDZ(width, op | 0x20) \
+GEN_ILDZU(width, op | 0x21) \
+GEN_ILDZUX(width, op | 0x01) \
+GEN_ILDZX(width, 0x17, op | 0x00)
+
+/* lbz lbzu lbzux lbzx */
+GEN_ILD(bz, 0x02);
+/* lha lhau lhaux lhax */
+GEN_ILD(ha, 0x0A);
+/* lhz lhzu lhzux lhzx */
+GEN_ILD(hz, 0x08);
+/* lwz lwzu lwzux lwzx */
+GEN_ILD(wz, 0x00);
+
+/*** Integer store ***/
+#define GEN_IST(width, opc) \
+GEN_HANDLER(st##width, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \
+{ \
+ uint32_t simm = SIMM(ctx->opcode); \
+ if (rA(ctx->opcode) == 0) { \
+ gen_op_load_gpr_T0(rS(ctx->opcode)); \
+ gen_op_st##width##_z(simm); \
+ } else { \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_load_gpr_T1(rS(ctx->opcode)); \
+ gen_op_st##width(simm); \
+ } \
+ SET_RETVAL(0); \
+}
+
+#define GEN_ISTU(width, opc) \
+GEN_HANDLER(st##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \
+{ \
+ if (rA(ctx->opcode) == 0) \
+ SET_RETVAL(EXCP_INVAL); \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_load_gpr_T1(rS(ctx->opcode)); \
+ gen_op_st##width(SIMM(ctx->opcode)); \
+ gen_op_store_T0_gpr(rA(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+#define GEN_ISTUX(width, opc) \
+GEN_HANDLER(st##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_INTEGER) \
+{ \
+ if (rA(ctx->opcode) == 0) \
+ SET_RETVAL(EXCP_INVAL); \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_load_gpr_T1(rB(ctx->opcode)); \
+ gen_op_load_gpr_T2(rS(ctx->opcode)); \
+ gen_op_st##width##x(); \
+ gen_op_store_T0_gpr(rA(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+#define GEN_ISTX(width, opc2, opc3) \
+GEN_HANDLER(st##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_INTEGER) \
+{ \
+ if (rA(ctx->opcode) == 0) { \
+ gen_op_load_gpr_T0(rB(ctx->opcode)); \
+ gen_op_load_gpr_T1(rS(ctx->opcode)); \
+ gen_op_st##width##x_z(); \
+ } else { \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_load_gpr_T1(rB(ctx->opcode)); \
+ gen_op_load_gpr_T2(rS(ctx->opcode)); \
+ gen_op_st##width##x(); \
+ } \
+ SET_RETVAL(0); \
+}
+
+#define GEN_ISTO(width, opc) \
+GEN_IST(width, opc | 0x20) \
+GEN_ISTU(width, opc | 0x21) \
+GEN_ISTUX(width, opc | 0x01) \
+GEN_ISTX(width, 0x17, opc | 0x00)
+
+/* stb stbu stbux stbx */
+GEN_ISTO(b, 0x06);
+/* sth sthu sthux sthx */
+GEN_ISTO(h, 0x0C);
+/* stw stwu stwux stwx */
+GEN_ISTO(w, 0x04);
+
+/*** Integer load and store with byte reverse ***/
+/* lhbrx */
+GEN_ILDZX(hbr, 0x16, 0x18);
+/* lwbrx */
+GEN_ILDZX(wbr, 0x16, 0x10);
+/* sthbrx */
+GEN_ISTX(hbr, 0x16, 0x1C);
+/* stwbrx */
+GEN_ISTX(wbr, 0x16, 0x14);
+
+/*** Integer load and store multiple ***/
+/* lmw */
+GEN_HANDLER(lmw, 0x2E, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ if (rA(ctx->opcode) == 0) {
+ gen_op_set_T0(0);
+ } else {
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ }
+ gen_op_lmw(rD(ctx->opcode), SIMM(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/* stmw */
+GEN_HANDLER(stmw, 0x2F, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
+{
+ if (rA(ctx->opcode) == 0) {
+ gen_op_set_T0(0);
+ } else {
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ }
+ gen_op_stmw(rS(ctx->opcode), SIMM(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/*** Integer load and store strings ***/
+/* lswi */
+GEN_HANDLER(lswi, 0x1F, 0x15, 0x12, 0x00000001, PPC_INTEGER)
+{
+ int nb = NB(ctx->opcode);
+ int start = rD(ctx->opcode);
+ int nr;
+
+ if (nb == 0)
+ nb = 32;
+ nr = nb / 4;
+ if ((start + nr) > 32) {
+ /* handle wrap around r0 */
+ if (rA(ctx->opcode) == 0) {
+ gen_op_set_T0(0);
+ } else {
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ }
+ gen_op_lswi(start, 4 * (32 - start));
+ nb -= 4 * (32 - start);
+ start = 0;
+ }
+ if (rA(ctx->opcode) == 0) {
+ gen_op_set_T0(0);
+ } else {
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ }
+ gen_op_lswi(start, nb);
+ SET_RETVAL(0);
+}
+
+/* lswx */
+GEN_HANDLER(lswx, 0x1F, 0x15, 0x10, 0x00000001, PPC_INTEGER)
+{
+ gen_op_load_xer_bc();
+ gen_op_load_gpr_T1(rB(ctx->opcode));
+ if (rA(ctx->opcode) == 0) {
+ gen_op_set_T2(0);
+ } else {
+ gen_op_load_gpr_T2(rA(ctx->opcode));
+ }
+ gen_op_lswx(rD(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/* stswi */
+GEN_HANDLER(stswi, 0x1F, 0x15, 0x16, 0x00000001, PPC_INTEGER)
+{
+ int nb = NB(ctx->opcode);
+ int start = rS(ctx->opcode);
+ int nr;
+
+ if (nb == 0)
+ nb = 32;
+ nr = nb / 4;
+ if ((start + nr) > 32) {
+ /* handle wrap around r0 */
+ if (rA(ctx->opcode) == 0) {
+ gen_op_set_T0(0);
+ } else {
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ }
+ gen_op_stswi(start, 4 * (32 - start));
+ nb -= 4 * (32 - start);
+ start = 0;
+ }
+ if (rA(ctx->opcode) == 0) {
+ gen_op_set_T0(0);
+ } else {
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ }
+ gen_op_stswi(start, nb);
+ SET_RETVAL(0);
+}
+
+/* stswx */
+GEN_HANDLER(stswx, 0x1F, 0x15, 0x14, 0x00000001, PPC_INTEGER)
+{
+ gen_op_load_xer_bc();
+ gen_op_load_gpr_T1(rB(ctx->opcode));
+ if (rA(ctx->opcode) == 0) {
+ gen_op_set_T2(0);
+ } else {
+ gen_op_load_gpr_T2(rA(ctx->opcode));
+ }
+ gen_op_stswx(rS(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/*** Memory synchronisation ***/
+/* eieio */
+GEN_HANDLER(eieio, 0x1F, 0x16, 0x1A, 0x03FF0801, PPC_MEM)
+{
+ /* Do a branch to next instruction */
+ gen_op_b((uint32_t)ctx->nip);
+ SET_RETVAL(EXCP_BRANCH);
+}
+
+/* isync */
+GEN_HANDLER(isync, 0x13, 0x16, 0xFF, 0x03FF0801, PPC_MEM)
+{
+ /* Do a branch to next instruction */
+ gen_op_b((uint32_t)ctx->nip);
+ SET_RETVAL(EXCP_BRANCH);
+}
+
+/* lwarx */
+GEN_HANDLER(lwarx, 0x1F, 0x14, 0xFF, 0x00000001, PPC_MEM)
+{
+ reserve = 1;
+ if (rA(ctx->opcode) == 0) {
+ gen_op_load_gpr_T0(rB(ctx->opcode));
+ gen_op_lwzx_z();
+ gen_op_set_reservation();
+ } else {
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ gen_op_load_gpr_T1(rB(ctx->opcode));
+ gen_op_lwzx();
+ gen_op_set_reservation();
+ }
+ gen_op_store_T1_gpr(rD(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/* stwcx. */
+GEN_HANDLER(stwcx_, 0x1F, 0x16, 0x04, 0x00000000, PPC_MEM)
+{
+ if (reserve == 0) {
+ gen_op_reset_Rc0();
+ } else {
+ if (rA(ctx->opcode) == 0) {
+ gen_op_load_gpr_T0(rB(ctx->opcode));
+ gen_op_load_gpr_T1(rS(ctx->opcode));
+ gen_op_stwx_z();
+ } else {
+ gen_op_load_gpr_T0(rA(ctx->opcode));
+ gen_op_load_gpr_T1(rB(ctx->opcode));
+ gen_op_load_gpr_T2(rS(ctx->opcode));
+ gen_op_stwx();
+ }
+ gen_op_set_Rc0_1();
+ gen_op_reset_reservation();
+ }
+ SET_RETVAL(0);
+}
+
+/* sync */
+GEN_HANDLER(sync, 0x1F, 0x16, 0x12, 0x03FF0801, PPC_MEM)
+{
+ /* Do a branch to next instruction */
+ gen_op_b((uint32_t)ctx->nip);
+ SET_RETVAL(EXCP_BRANCH);
+}
+
+/*** Floating-point load ***/
+#define GEN_LF(width, opc) \
+GEN_HANDLER(lf##width, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \
+{ \
+ uint32_t simm = SIMM(ctx->opcode); \
+ if (rA(ctx->opcode) == 0) { \
+ gen_op_lf##width##_z(simm, rD(ctx->opcode)); \
+ } else { \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_lf##width(simm, rD(ctx->opcode)); \
+ } \
+ SET_RETVAL(0); \
+}
+
+#define GEN_LFU(width, opc) \
+GEN_HANDLER(lf##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \
+{ \
+ if (rA(ctx->opcode) == 0 || \
+ rA(ctx->opcode) == rD(ctx->opcode)) \
+ SET_RETVAL(EXCP_INVAL); \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_lf##width(SIMM(ctx->opcode), rD(ctx->opcode)); \
+ gen_op_store_T0_gpr(rA(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+#define GEN_LFUX(width, opc) \
+GEN_HANDLER(lf##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \
+{ \
+ if (rA(ctx->opcode) == 0 || \
+ rA(ctx->opcode) == rD(ctx->opcode)) \
+ SET_RETVAL(EXCP_INVAL); \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_load_gpr_T1(rB(ctx->opcode)); \
+ gen_op_lf##width##x(rD(ctx->opcode)); \
+ gen_op_store_T0_gpr(rA(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+#define GEN_LFX(width, opc) \
+GEN_HANDLER(lf##width##x, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \
+{ \
+ if (rA(ctx->opcode) == 0) { \
+ gen_op_load_gpr_T0(rB(ctx->opcode)); \
+ gen_op_lf##width##x_z(rD(ctx->opcode)); \
+ } else { \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_load_gpr_T1(rB(ctx->opcode)); \
+ gen_op_lf##width##x(rD(ctx->opcode)); \
+ } \
+ SET_RETVAL(0); \
+}
+
+#define GEN_LDF(width, opc) \
+GEN_LF(width, opc | 0x20) \
+GEN_LFU(width, opc | 0x21) \
+GEN_LFUX(width, opc | 0x01) \
+GEN_LFX(width, opc | 0x00)
+
+/* lfd lfdu lfdux lfdx */
+GEN_LDF(d, 0x12);
+/* lfs lfsu lfsux lfsx */
+#define gen_op_lfs_z(a, b)
+#define gen_op_lfs(a, b)
+#define gen_op_lfsx_z(a)
+#define gen_op_lfsx(a)
+GEN_LDF(s, 0x10);
+
+/*** Floating-point store ***/
+#define GEN_STF(width, opc) \
+GEN_HANDLER(stf##width, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \
+{ \
+ uint32_t simm = SIMM(ctx->opcode); \
+ if (rA(ctx->opcode) == 0) { \
+ gen_op_stf##width##_z(simm, rS(ctx->opcode)); \
+ } else { \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_stf##width(simm, rS(ctx->opcode)); \
+ } \
+ SET_RETVAL(0); \
+}
+
+#define GEN_STFU(width, opc) \
+GEN_HANDLER(stf##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \
+{ \
+ if (rA(ctx->opcode) == 0) \
+ SET_RETVAL(EXCP_INVAL); \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_stf##width(SIMM(ctx->opcode), rS(ctx->opcode)); \
+ gen_op_store_T0_gpr(rA(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+#define GEN_STFUX(width, opc) \
+GEN_HANDLER(stf##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \
+{ \
+ if (rA(ctx->opcode) == 0) \
+ SET_RETVAL(EXCP_INVAL); \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_load_gpr_T1(rB(ctx->opcode)); \
+ gen_op_stf##width##x(rS(ctx->opcode)); \
+ gen_op_store_T0_gpr(rA(ctx->opcode)); \
+ SET_RETVAL(0); \
+}
+
+#define GEN_STFX(width, opc) \
+GEN_HANDLER(stf##width##x, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \
+{ \
+ if (rA(ctx->opcode) == 0) { \
+ gen_op_load_gpr_T0(rB(ctx->opcode)); \
+ gen_op_stf##width##x_z(rS(ctx->opcode)); \
+ } else { \
+ gen_op_load_gpr_T0(rA(ctx->opcode)); \
+ gen_op_load_gpr_T1(rB(ctx->opcode)); \
+ gen_op_stf##width##x(rS(ctx->opcode)); \
+ } \
+ SET_RETVAL(0); \
+}
+
+#define GEN_STOF(width, opc) \
+GEN_STF(width, opc | 0x20) \
+GEN_STFU(width, opc | 0x21) \
+GEN_STFUX(width, opc | 0x01) \
+GEN_STFX(width, opc | 0x00)
+
+/* stfd stfdu stfdux stfdx */
+GEN_STOF(d, 0x16);
+/* stfs stfsu stfsux stfsx */
+#define gen_op_stfs_z(a, b)
+#define gen_op_stfs(a, b)
+#define gen_op_stfsx_z(a)
+#define gen_op_stfsx(a)
+GEN_STOF(s, 0x14);
+
+/* Optional: */
+/* stfiwx */
+GEN_HANDLER(stfiwx, 0x1F, 0x17, 0x1E, 0x00000001, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/*** Floating-point move ***/
+/* fabs */
+GEN_HANDLER(fabs, 0x3F, 0x08, 0x08, 0x001F0000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fmr */
+GEN_HANDLER(fmr, 0x3F, 0x08, 0x02, 0x001F0000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fnabs */
+GEN_HANDLER(fnabs, 0x3F, 0x08, 0x04, 0x001F0000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* fneg */
+GEN_HANDLER(fneg, 0x3F, 0x08, 0x01, 0x001F0000, PPC_FLOAT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/*** Branch ***/
+#define GEN_BCOND(name, opc1, opc2, opc3, prologue, \
+ bl_ctr, b_ctr, bl_ctrz, b_ctrz, b, \
+ bl_ctr_true, b_ctr_true, bl_ctrz_true, b_ctrz_true, bl_true, b_true, \
+ bl_ctr_false, b_ctr_false, bl_ctrz_false, b_ctrz_false, bl_false, b_false) \
+GEN_HANDLER(name, opc1, opc2, opc3, 0x00000000, PPC_FLOW) \
+{ \
+ __attribute__ ((unused)) uint32_t target; \
+ uint32_t bo = BO(ctx->opcode); \
+ uint32_t bi = BI(ctx->opcode); \
+ uint32_t mask; \
+ prologue; \
+ if ((bo & 0x4) == 0) \
+ gen_op_dec_ctr(); \
+ if (bo & 0x10) { \
+ /* No CR condition */ \
+ switch (bo & 0x6) { \
+ case 0: \
+ if (LK(ctx->opcode)) { \
+ bl_ctr; \
+ } else { \
+ b_ctr; \
+ } \
+ break; \
+ case 2: \
+ if (LK(ctx->opcode)) { \
+ bl_ctrz; \
+ } else { \
+ b_ctrz; \
+ } \
+ break; \
+ case 4: \
+ case 6: \
+ b; \
+ if (LK(ctx->opcode)) \
+ gen_op_load_lr((uint32_t)ctx->nip); \
+ break; \
+ default: \
+ printf("ERROR: %s: unhandled ba case (%d)\n", __func__, bo); \
+ SET_RETVAL(EXCP_INVAL); \
+ break; \
+ } \
+ } else { \
+ mask = 1 << (3 - (bi & 0x03)); \
+ gen_op_load_crf_T0(bi >> 2); \
+ if (bo & 0x8) { \
+ switch (bo & 0x6) { \
+ case 0: \
+ if (LK(ctx->opcode)) { \
+ bl_ctr_true; \
+ } else { \
+ b_ctr_true; \
+ } \
+ break; \
+ case 2: \
+ if (LK(ctx->opcode)) { \
+ bl_ctrz_true; \
+ } else { \
+ b_ctrz_true; \
+ } \
+ break; \
+ case 4: \
+ case 6: \
+ if (LK(ctx->opcode)) { \
+ bl_true; \
+ } else { \
+ b_true; \
+ } \
+ break; \
+ default: \
+ printf("ERROR: %s: unhandled b case (%d)\n", __func__, bo); \
+ SET_RETVAL(EXCP_INVAL); \
+ break; \
+ } \
+ } else { \
+ switch (bo & 0x6) { \
+ case 0: \
+ if (LK(ctx->opcode)) { \
+ bl_ctr_false; \
+ } else { \
+ b_ctr_false; \
+ } \
+ break; \
+ case 2: \
+ if (LK(ctx->opcode)) { \
+ bl_ctrz_false; \
+ } else { \
+ b_ctrz_false; \
+ } \
+ break; \
+ case 4: \
+ case 6: \
+ if (LK(ctx->opcode)) { \
+ bl_false; \
+ } else { \
+ b_false; \
+ } \
+ break; \
+ default: \
+ printf("ERROR: %s: unhandled bn case (%d)\n", __func__, bo); \
+ SET_RETVAL(EXCP_INVAL); \
+ break; \
+ } \
+ } \
+ } \
+ SET_RETVAL(EXCP_BRANCH); \
+}
+
+/* b ba bl bla */
+GEN_HANDLER(b, 0x12, 0xFF, 0xFF, 0x00000000, PPC_FLOW)
+{
+ uint32_t li = s_ext24(LI(ctx->opcode)), target;
+
+ if (AA(ctx->opcode) == 0)
+ target = (uint32_t)ctx->nip + li - 4;
+ else
+ target = s_ext24(LI(ctx->opcode));
+ gen_op_b(target);
+ if (LK(ctx->opcode))
+ gen_op_load_lr((uint32_t)ctx->nip);
+ SET_RETVAL(EXCP_BRANCH);
+}
+
+/* bc bca bcl bcla */
+GEN_BCOND(bc, 0x10, 0xFF, 0xFF,
+ do {
+ uint32_t li = s_ext16(BD(ctx->opcode));
+ if (AA(ctx->opcode) == 0) {
+ target = (uint32_t)ctx->nip + li - 4;
+ } else {
+ target = li;
+ }
+ } while (0),
+ gen_op_bl_ctr((uint32_t)ctx->nip, target),
+ gen_op_b_ctr((uint32_t)ctx->nip, target),
+ gen_op_bl_ctrz((uint32_t)ctx->nip, target),
+ gen_op_b_ctrz((uint32_t)ctx->nip, target),
+ gen_op_b(target),
+ gen_op_bl_ctr_true((uint32_t)ctx->nip, target, mask),
+ gen_op_b_ctr_true((uint32_t)ctx->nip, target, mask),
+ gen_op_bl_ctrz_true((uint32_t)ctx->nip, target, mask),
+ gen_op_b_ctrz_true((uint32_t)ctx->nip, target, mask),
+ gen_op_bl_true((uint32_t)ctx->nip, target, mask),
+ gen_op_b_true((uint32_t)ctx->nip, target, mask),
+ gen_op_bl_ctr_false((uint32_t)ctx->nip, target, mask),
+ gen_op_b_ctr_false((uint32_t)ctx->nip, target, mask),
+ gen_op_bl_ctrz_false((uint32_t)ctx->nip, target, mask),
+ gen_op_b_ctrz_false((uint32_t)ctx->nip, target, mask),
+ gen_op_bl_false((uint32_t)ctx->nip, target, mask),
+ gen_op_b_false((uint32_t)ctx->nip, target, mask));
+
+/* bcctr bcctrl */
+GEN_BCOND(bcctr, 0x13, 0x10, 0x10, do { } while (0),
+ gen_op_bctrl_ctr((uint32_t)ctx->nip),
+ gen_op_bctr_ctr((uint32_t)ctx->nip),
+ gen_op_bctrl_ctrz((uint32_t)ctx->nip),
+ gen_op_bctr_ctrz((uint32_t)ctx->nip),
+ gen_op_bctr(),
+ gen_op_bctrl_ctr_true((uint32_t)ctx->nip, mask),
+ gen_op_bctr_ctr_true((uint32_t)ctx->nip, mask),
+ gen_op_bctrl_ctrz_true((uint32_t)ctx->nip, mask),
+ gen_op_bctr_ctrz_true((uint32_t)ctx->nip, mask),
+ gen_op_bctrl_true((uint32_t)ctx->nip, mask),
+ gen_op_bctr_true((uint32_t)ctx->nip, mask),
+ gen_op_bctrl_ctr_false((uint32_t)ctx->nip, mask),
+ gen_op_bctr_ctr_false((uint32_t)ctx->nip, mask),
+ gen_op_bctrl_ctrz_false((uint32_t)ctx->nip, mask),
+ gen_op_bctr_ctrz_false((uint32_t)ctx->nip, mask),
+ gen_op_bctrl_false((uint32_t)ctx->nip, mask),
+ gen_op_bctr_false((uint32_t)ctx->nip, mask))
+
+/* bclr bclrl */
+GEN_BCOND(bclr, 0x13, 0x10, 0x00, do { } while (0),
+ gen_op_blrl_ctr((uint32_t)ctx->nip),
+ gen_op_blr_ctr((uint32_t)ctx->nip),
+ gen_op_blrl_ctrz((uint32_t)ctx->nip),
+ gen_op_blr_ctrz((uint32_t)ctx->nip),
+ gen_op_blr(),
+ gen_op_blrl_ctr_true((uint32_t)ctx->nip, mask),
+ gen_op_blr_ctr_true((uint32_t)ctx->nip, mask),
+ gen_op_blrl_ctrz_true((uint32_t)ctx->nip, mask),
+ gen_op_blr_ctrz_true((uint32_t)ctx->nip, mask),
+ gen_op_blrl_true((uint32_t)ctx->nip, mask),
+ gen_op_blr_true((uint32_t)ctx->nip, mask),
+ gen_op_blrl_ctr_false((uint32_t)ctx->nip, mask),
+ gen_op_blr_ctr_false((uint32_t)ctx->nip, mask),
+ gen_op_blrl_ctrz_false((uint32_t)ctx->nip, mask),
+ gen_op_blr_ctrz_false((uint32_t)ctx->nip, mask),
+ gen_op_blrl_false((uint32_t)ctx->nip, mask),
+ gen_op_blr_false((uint32_t)ctx->nip, mask))
+
+/*** Condition register logical ***/
+#define GEN_CRLOGIC(op, opc) \
+GEN_HANDLER(cr##op, 0x13, 0x01, opc, 0x00000001, PPC_INTEGER) \
+{ \
+ gen_op_load_crf_T0(crbA(ctx->opcode) >> 2); \
+ gen_op_getbit_T0(3 - (crbA(ctx->opcode) & 0x03)); \
+ gen_op_load_crf_T1(crbB(ctx->opcode) >> 2); \
+ gen_op_getbit_T1(3 - (crbB(ctx->opcode) & 0x03)); \
+ gen_op_##op(); \
+ gen_op_load_crf_T1(crbD(ctx->opcode) >> 2); \
+ gen_op_setcrfbit(~(1 << (3 - (crbD(ctx->opcode) & 0x03))), \
+ 3 - (crbD(ctx->opcode) & 0x03)); \
+ gen_op_store_T1_crf(crbD(ctx->opcode) >> 2); \
+ SET_RETVAL(0); \
+}
+
+/* crand */
+GEN_CRLOGIC(and, 0x08)
+/* crandc */
+GEN_CRLOGIC(andc, 0x04)
+/* creqv */
+GEN_CRLOGIC(eqv, 0x09)
+/* crnand */
+GEN_CRLOGIC(nand, 0x07)
+/* crnor */
+GEN_CRLOGIC(nor, 0x01)
+/* cror */
+GEN_CRLOGIC(or, 0x0E)
+/* crorc */
+GEN_CRLOGIC(orc, 0x0D)
+/* crxor */
+GEN_CRLOGIC(xor, 0x06)
+/* mcrf */
+GEN_HANDLER(mcrf, 0x13, 0x00, 0xFF, 0x00000001, PPC_INTEGER)
+{
+ gen_op_load_crf_T0(crfS(ctx->opcode));
+ gen_op_store_T0_crf(crfD(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/*** System linkage ***/
+/* rfi (supervisor only) */
+GEN_HANDLER(rfi, 0x13, 0x12, 0xFF, 0x03FF8001, PPC_FLOW)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* sc */
+GEN_HANDLER(sc, 0x11, 0xFF, 0xFF, 0x03FFFFFD, PPC_FLOW)
+{
+ gen_op_b((uint32_t)ctx->nip);
+ SET_RETVAL(EXCP_SYSCALL);
+}
+
+/*** Trap ***/
+/* tw */
+GEN_HANDLER(tw, 0x1F, 0x04, 0xFF, 0x00000001, PPC_FLOW)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* twi */
+GEN_HANDLER(twi, 0x03, 0xFF, 0xFF, 0x00000000, PPC_FLOW)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/*** Processor control ***/
+static inline int check_spr_access (int spr, int rw, int supervisor)
+{
+ uint32_t rights = spr_access[spr >> 1] >> (4 * (spr & 1));
+
+ rights = rights >> (2 * supervisor);
+ rights = rights >> rw;
+
+ return rights & 1;
+}
+
+/* mcrxr */
+GEN_HANDLER(mcrxr, 0x1F, 0x00, 0x10, 0x007FF801, PPC_MISC)
+{
+ gen_op_load_xer_cr();
+ gen_op_store_T0_crf(crfD(ctx->opcode));
+ gen_op_clear_xer_cr();
+ SET_RETVAL(0);
+}
+
+/* mfcr */
+GEN_HANDLER(mfcr, 0x1F, 0x13, 0x00, 0x001FF801, PPC_MISC)
+{
+ gen_op_load_cr();
+ gen_op_store_T0_gpr(rD(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/* mfmsr */
+GEN_HANDLER(mfmsr, 0x1F, 0x13, 0x02, 0x001FF801, PPC_MISC)
+{
+ if (!ctx->supervisor)
+ SET_RETVAL(EXCP_PRIV);
+ gen_op_load_msr();
+ gen_op_store_T0_gpr(rD(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/* mfspr */
+GEN_HANDLER(mfspr, 0x1F, 0x13, 0x0A, 0x00000001, PPC_MISC)
+{
+ uint32_t sprn = SPR(ctx->opcode);
+
+ if (check_spr_access(sprn, 0, ctx->supervisor) == 0)
+ SET_RETVAL(EXCP_PRIV);
+ /* XXX: make this more generic */
+ switch (sprn) {
+ case SPR_ENCODE(1):
+ if (loglevel > 0) {
+ fprintf(logfile, "LOAD XER at %p\n", ctx->nip - 1);
+ }
+ gen_op_load_xer();
+ break;
+ case SPR_ENCODE(268):
+ /* We need to update the time base before reading it */
+ gen_op_update_tb(ctx->tb_offset);
+ ctx->tb_offset = 0;
+ break;
+ case SPR_ENCODE(269):
+ gen_op_update_tb(ctx->tb_offset);
+ ctx->tb_offset = 0;
+ break;
+ default:
+ gen_op_load_spr(sprn);
+ break;
+ }
+ gen_op_store_T0_gpr(rD(ctx->opcode)); //
+ SET_RETVAL(0);
+}
+
+/* mftb */
+GEN_HANDLER(mftb, 0x1F, 0x13, 0x0B, 0x00000001, PPC_MISC)
+{
+ uint32_t sprn = SPR(ctx->opcode);
+
+ if (check_spr_access(sprn, 0, ctx->supervisor) == 0)
+ SET_RETVAL(EXCP_PRIV);
+ switch (sprn) {
+ case SPR_ENCODE(268):
+ /* We need to update the time base before reading it */
+ gen_op_update_tb(ctx->tb_offset);
+ ctx->tb_offset = 0;
+ break;
+ case SPR_ENCODE(269):
+ gen_op_update_tb(ctx->tb_offset);
+ ctx->tb_offset = 0;
+ break;
+ default:
+ SET_RETVAL(EXCP_INVAL);
+ break;
+ }
+ SET_RETVAL(0);
+}
+
+/* mtcrf */
+GEN_HANDLER(mtcrf, 0x1F, 0x10, 0x04, 0x00100801, PPC_MISC)
+{
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ gen_op_store_cr(CRM(ctx->opcode));
+ SET_RETVAL(0);
+}
+
+/* mtmsr */
+GEN_HANDLER(mtmsr, 0x1F, 0x12, 0x04, 0x001FF801, PPC_MISC)
+{
+ if (!ctx->supervisor)
+ SET_RETVAL(EXCP_PRIV);
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ gen_op_store_msr();
+ /* Must stop the translation as machine state (may have) changed */
+ SET_RETVAL(EXCP_MTMSR);
+}
+
+/* mtspr */
+GEN_HANDLER(mtspr, 0x1F, 0x13, 0x0E, 0x00000001, PPC_MISC)
+{
+ uint32_t sprn = SPR(ctx->opcode);
+
+ if (check_spr_access(sprn, 1, ctx->supervisor) == 0)
+ SET_RETVAL(EXCP_PRIV);
+ gen_op_load_gpr_T0(rS(ctx->opcode));
+ if (sprn == SPR_ENCODE(1)) {
+ gen_op_store_xer();
+ } else {
+ gen_op_store_spr(sprn);
+ }
+ SET_RETVAL(0);
+}
+
+/*** Cache management ***/
+/* For now, all those will be implemented as nop:
+ * this is valid, regarding the PowerPC specs...
+ */
+/* dcbf */
+GEN_HANDLER(dcbf, 0x1F, 0x16, 0x17, 0x03E00001, PPC_MEM)
+{
+ SET_RETVAL(0);
+}
+
+/* dcbi (Supervisor only) */
+GEN_HANDLER(dcbi, 0x1F, 0x16, 0x1F, 0x03E00001, PPC_MEM)
+{
+ SET_RETVAL(0);
+}
+
+/* dcdst */
+GEN_HANDLER(dcbst, 0x1F, 0x16, 0x0E, 0x03E00001, PPC_MEM)
+{
+ SET_RETVAL(0);
+}
+
+/* dcbt */
+GEN_HANDLER(dcbt, 0x1F, 0x16, 0x01, 0x03E00001, PPC_MEM)
+{
+ SET_RETVAL(0);
+}
+
+/* dcbtst */
+GEN_HANDLER(dcbtst, 0x1F, 0x16, 0x02, 0x03E00001, PPC_MEM)
+{
+ SET_RETVAL(0);
+}
+
+/* dcbz */
+GEN_HANDLER(dcbz, 0x1F, 0x16, 0x08, 0x03E00001, PPC_MEM)
+{
+ SET_RETVAL(0);
+}
+
+/* icbi */
+GEN_HANDLER(icbi, 0x1F, 0x16, 0x1E, 0x03E00001, PPC_MEM)
+{
+ SET_RETVAL(0);
+}
+
+/* Optional: */
+/* dcba */
+GEN_HANDLER(dcba, 0x1F, 0x16, 0x07, 0x03E00001, PPC_MEM)
+{
+ SET_RETVAL(0);
+}
+
+/*** Segment register manipulation ***/
+/* Supervisor only: */
+/* mfsr */
+GEN_HANDLER(mfsr, 0x1F, 0x13, 0x12, 0x0010F801, PPC_SEGMENT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* mfsrin */
+GEN_HANDLER(mfsrin, 0x1F, 0x13, 0x14, 0x0010F001, PPC_SEGMENT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* mtsr */
+GEN_HANDLER(mtsr, 0x1F, 0x12, 0x02, 0x0010F801, PPC_SEGMENT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* mtsrin */
+GEN_HANDLER(mtsrin, 0x1F, 0x12, 0x07, 0x0010F001, PPC_SEGMENT)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/*** Lookaside buffer management ***/
+/* Optional & supervisor only: */
+/* tlbia */
+GEN_HANDLER(tlbia, 0x1F, 0x12, 0x0B, 0x03FFFC01, PPC_MEM)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* tlbie */
+GEN_HANDLER(tlbie, 0x1F, 0x12, 0x09, 0x03FF8001, PPC_MEM)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* tlbsync */
+GEN_HANDLER(tlbsync, 0x1F, 0x16, 0x11, 0x03FFFC01, PPC_MEM)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/*** External control ***/
+/* Optional: */
+/* eciwx */
+GEN_HANDLER(eciwx, 0x1F, 0x16, 0x0D, 0x00000001, PPC_EXTERN)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* ecowx */
+GEN_HANDLER(ecowx, 0x1F, 0x16, 0x09, 0x00000001, PPC_EXTERN)
+{
+ SET_RETVAL(EXCP_INVAL);
+}
+
+/* End opcode list */
+GEN_OPCODE_MARK(end);
+
+/*****************************************************************************/
+
+#include <string.h>
+extern FILE *stderr;
+void free (void *p);
+int fflush (FILE *f);
+
+/* Main ppc opcodes table:
+ * at init, all opcodes are invalids
+ */
+static opc_handler_t *ppc_opcodes[0x40];
+
+/* Opcode types */
+enum {
+ PPC_DIRECT = 0, /* Opcode routine */
+ PPC_INDIRECT = 1, /* Indirect opcode table */
+};
+
+static inline int is_indirect_opcode (void *handler)
+{
+ return ((unsigned long)handler & 0x03) == PPC_INDIRECT;
+}
+
+static inline opc_handler_t **ind_table(void *handler)
+{
+ return (opc_handler_t **)((unsigned long)handler & ~3);
+}
+
+/* Opcodes tables creation */
+static void fill_new_table (opc_handler_t **table, int len)
+{
+ int i;
+
+ for (i = 0; i < len; i++)
+ table[i] = &invalid_handler;
+}
+
+static int create_new_table (opc_handler_t **table, unsigned char idx)
+{
+ opc_handler_t **tmp;
+
+ tmp = malloc(0x20 * sizeof(opc_handler_t));
+ if (tmp == NULL)
+ return -1;
+ fill_new_table(tmp, 0x20);
+ table[idx] = (opc_handler_t *)((unsigned long)tmp | PPC_INDIRECT);
+
+ return 0;
+}
+
+static int insert_in_table (opc_handler_t **table, unsigned char idx,
+ opc_handler_t *handler)
+{
+ if (table[idx] != &invalid_handler)
+ return -1;
+ table[idx] = handler;
+
+ return 0;
+}
+
+static int register_direct_insn (unsigned char idx, opc_handler_t *handler)
+{
+ if (insert_in_table(ppc_opcodes, idx, handler) < 0) {
+ fprintf(stderr, "*** ERROR: opcode %02x already assigned in main "
+ "opcode table\n", idx);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int register_ind_in_table (opc_handler_t **table,
+ unsigned char idx1, unsigned char idx2,
+ opc_handler_t *handler)
+{
+ if (table[idx1] == &invalid_handler) {
+ if (create_new_table(table, idx1) < 0) {
+ fprintf(stderr, "*** ERROR: unable to create indirect table "
+ "idx=%02x\n", idx1);
+ return -1;
+ }
+ } else {
+ if (!is_indirect_opcode(table[idx1])) {
+ fprintf(stderr, "*** ERROR: idx %02x already assigned to a direct "
+ "opcode\n", idx1);
+ return -1;
+ }
+ }
+ if (handler != NULL &&
+ insert_in_table(ind_table(table[idx1]), idx2, handler) < 0) {
+ fprintf(stderr, "*** ERROR: opcode %02x already assigned in "
+ "opcode table %02x\n", idx2, idx1);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int register_ind_insn (unsigned char idx1, unsigned char idx2,
+ opc_handler_t *handler)
+{
+ int ret;
+
+ ret = register_ind_in_table(ppc_opcodes, idx1, idx2, handler);
+
+ return ret;
+}
+
+static int register_dblind_insn (unsigned char idx1, unsigned char idx2,
+ unsigned char idx3, opc_handler_t *handler)
+{
+ if (register_ind_in_table(ppc_opcodes, idx1, idx2, NULL) < 0) {
+ fprintf(stderr, "*** ERROR: unable to join indirect table idx "
+ "[%02x-%02x]\n", idx1, idx2);
+ return -1;
+ }
+ if (register_ind_in_table(ind_table(ppc_opcodes[idx1]), idx2, idx3,
+ handler) < 0) {
+ fprintf(stderr, "*** ERROR: unable to insert opcode "
+ "[%02x-%02x-%02x]\n", idx1, idx2, idx3);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int register_insn (opcode_t *insn)
+{
+ if (insn->opc2 != 0xFF) {
+ if (insn->opc3 != 0xFF) {
+ if (register_dblind_insn(insn->opc1, insn->opc2, insn->opc3,
+ &insn->handler) < 0)
+ return -1;
+ } else {
+ if (register_ind_insn(insn->opc1, insn->opc2, &insn->handler) < 0)
+ return -1;
+ }
+ } else {
+ if (register_direct_insn(insn->opc1, &insn->handler) < 0)
+ return -1;
+ }
+
+ return 0;
+}
+
+static int test_opcode_table (opc_handler_t **table, int len)
+{
+ int i, count, tmp;
+
+ for (i = 0, count = 0; i < len; i++) {
+ /* Consistency fixup */
+ if (table[i] == NULL)
+ table[i] = &invalid_handler;
+ if (table[i] != &invalid_handler) {
+ if (is_indirect_opcode(table[i])) {
+ tmp = test_opcode_table(ind_table(table[i]), 0x20);
+ if (tmp == 0) {
+ free(table[i]);
+ table[i] = &invalid_handler;
+ } else {
+ count++;
+ }
+ } else {
+ count++;
+ }
+ }
+ }
+
+ return count;
+}
+
+static void fix_opcode_tables (void)
+{
+ if (test_opcode_table(ppc_opcodes, 0x40) == 0)
+ fprintf(stderr, "*** WARNING: no opcode defined !\n");
+}
+
+#define SPR_RIGHTS(rw, priv) ((2 * (priv)) + (rw))
+#define SPR_UR SPR_RIGHTS(0, 0)
+#define SPR_UW SPR_RIGHTS(1, 0)
+#define SPR_SR SPR_RIGHTS(0, 1)
+#define SPR_SW SPR_RIGHTS(1, 1)
+
+#define spr_set_rights(spr, rights) \
+do { \
+ spr_access[(spr) >> 1] |= ((rights) << (4 * ((spr) & 1))); \
+} while (0)
+
+static void init_spr_rights (void)
+{
+ /* XER (SPR 1) */
+ spr_set_rights(SPR_ENCODE(1), SPR_UR | SPR_UW | SPR_SR | SPR_SW);
+ /* LR (SPR 8) */
+ spr_set_rights(SPR_ENCODE(8), SPR_UR | SPR_UW | SPR_SR | SPR_SW);
+ /* CTR (SPR 9) */
+ spr_set_rights(SPR_ENCODE(9), SPR_UR | SPR_UW | SPR_SR | SPR_SW);
+ /* TBL (SPR 268) */
+ spr_set_rights(SPR_ENCODE(268), SPR_UR | SPR_SR);
+ /* TBU (SPR 269) */
+ spr_set_rights(SPR_ENCODE(269), SPR_UR | SPR_SR);
+ /* DSISR (SPR 18) */
+ spr_set_rights(SPR_ENCODE(18), SPR_SR | SPR_SW);
+ /* DAR (SPR 19) */
+ spr_set_rights(SPR_ENCODE(19), SPR_SR | SPR_SW);
+ /* DEC (SPR 22) */
+ spr_set_rights(SPR_ENCODE(22), SPR_SR | SPR_SW);
+ /* SDR1 (SPR 25) */
+ spr_set_rights(SPR_ENCODE(25), SPR_SR | SPR_SW);
+ /* SPRG0 (SPR 272) */
+ spr_set_rights(SPR_ENCODE(272), SPR_SR | SPR_SW);
+ /* SPRG1 (SPR 273) */
+ spr_set_rights(SPR_ENCODE(273), SPR_SR | SPR_SW);
+ /* SPRG2 (SPR 274) */
+ spr_set_rights(SPR_ENCODE(274), SPR_SR | SPR_SW);
+ /* SPRG3 (SPR 275) */
+ spr_set_rights(SPR_ENCODE(275), SPR_SR | SPR_SW);
+ /* ASR (SPR 280) */
+ spr_set_rights(SPR_ENCODE(281), SPR_SR | SPR_SW);
+ /* EAR (SPR 282) */
+ spr_set_rights(SPR_ENCODE(282), SPR_SR | SPR_SW);
+ /* IBAT0U (SPR 528) */
+ spr_set_rights(SPR_ENCODE(528), SPR_SR | SPR_SW);
+ /* IBAT0L (SPR 529) */
+ spr_set_rights(SPR_ENCODE(529), SPR_SR | SPR_SW);
+ /* IBAT1U (SPR 530) */
+ spr_set_rights(SPR_ENCODE(530), SPR_SR | SPR_SW);
+ /* IBAT1L (SPR 531) */
+ spr_set_rights(SPR_ENCODE(531), SPR_SR | SPR_SW);
+ /* IBAT2U (SPR 532) */
+ spr_set_rights(SPR_ENCODE(532), SPR_SR | SPR_SW);
+ /* IBAT2L (SPR 533) */
+ spr_set_rights(SPR_ENCODE(533), SPR_SR | SPR_SW);
+ /* IBAT3U (SPR 534) */
+ spr_set_rights(SPR_ENCODE(534), SPR_SR | SPR_SW);
+ /* IBAT3L (SPR 535) */
+ spr_set_rights(SPR_ENCODE(535), SPR_SR | SPR_SW);
+ /* DBAT0U (SPR 536) */
+ spr_set_rights(SPR_ENCODE(536), SPR_SR | SPR_SW);
+ /* DBAT0L (SPR 537) */
+ spr_set_rights(SPR_ENCODE(537), SPR_SR | SPR_SW);
+ /* DBAT1U (SPR 538) */
+ spr_set_rights(SPR_ENCODE(538), SPR_SR | SPR_SW);
+ /* DBAT1L (SPR 539) */
+ spr_set_rights(SPR_ENCODE(539), SPR_SR | SPR_SW);
+ /* DBAT2U (SPR 540) */
+ spr_set_rights(SPR_ENCODE(540), SPR_SR | SPR_SW);
+ /* DBAT2L (SPR 541) */
+ spr_set_rights(SPR_ENCODE(541), SPR_SR | SPR_SW);
+ /* DBAT3U (SPR 542) */
+ spr_set_rights(SPR_ENCODE(542), SPR_SR | SPR_SW);
+ /* DBAT3L (SPR 543) */
+ spr_set_rights(SPR_ENCODE(543), SPR_SR | SPR_SW);
+ /* DABR (SPR 1013) */
+ spr_set_rights(SPR_ENCODE(1013), SPR_SR | SPR_SW);
+ /* FPECR (SPR 1022) */
+ spr_set_rights(SPR_ENCODE(1022), SPR_SR | SPR_SW);
+ /* PIR (SPR 1023) */
+ spr_set_rights(SPR_ENCODE(1023), SPR_SR | SPR_SW);
+ /* PVR (SPR 287) */
+ spr_set_rights(SPR_ENCODE(287), SPR_SR);
+ /* TBL (SPR 284) */
+ spr_set_rights(SPR_ENCODE(284), SPR_SW);
+ /* TBU (SPR 285) */
+ spr_set_rights(SPR_ENCODE(285), SPR_SW);
+}
+
+/* PPC "main stream" common instructions */
+#define PPC_COMMON (PPC_INTEGER | PPC_FLOAT | PPC_FLOW | PPC_MEM | \
+ PPC_MISC | PPC_EXTERN | PPC_SEGMENT)
+
+typedef struct ppc_proc_t {
+ int flags;
+ void *specific;
+} ppc_proc_t;
+
+typedef struct ppc_def_t {
+ unsigned long pvr;
+ unsigned long pvr_mask;
+ ppc_proc_t *proc;
+} ppc_def_t;
+
+static ppc_proc_t ppc_proc_common = {
+ .flags = PPC_COMMON,
+ .specific = NULL,
+};
+
+static ppc_def_t ppc_defs[] =
+{
+ /* Fallback */
+ {
+ .pvr = 0x00000000,
+ .pvr_mask = 0x00000000,
+ .proc = &ppc_proc_common,
+ },
+};
+
+static int create_ppc_proc (unsigned long pvr)
+{
+ opcode_t *opc;
+ int i, flags;
+
+ fill_new_table(ppc_opcodes, 0x40);
+ for (i = 0; ; i++) {
+ if ((ppc_defs[i].pvr & ppc_defs[i].pvr_mask) ==
+ (pvr & ppc_defs[i].pvr_mask)) {
+ flags = ppc_defs[i].proc->flags;
+ break;
+ }
+ }
+
+ for (opc = &opc_start + 1; opc != &opc_end; opc++) {
+ if ((opc->type & flags) != 0)
+ if (register_insn(opc) < 0) {
+ fprintf(stderr, "*** ERROR initializing PPC instruction "
+ "0x%02x 0x%02x 0x%02x\n", opc->opc1, opc->opc2,
+ opc->opc3);
+ return -1;
+ }
+ }
+ fix_opcode_tables();
+
+ return 0;
+}
+
+/*****************************************************************************/
+uint32_t do_load_xer (void);
+
+void cpu_ppc_dump_state(CPUPPCState *env, FILE *f, int flags)
+{
+ int i;
+
+ if (loglevel > 0) {
+ fprintf(logfile, "nip=0x%08x LR=0x%08x CTR=0x%08x XER=0x%08x\n",
+ env->nip, env->LR, env->CTR, do_load_xer());
+ for (i = 0; i < 32; i++) {
+ if ((i & 7) == 0)
+ fprintf(logfile, "GPR%02d:", i);
+ fprintf(logfile, " %08x", env->gpr[i]);
+ if ((i & 7) == 7)
+ fprintf(logfile, "\n");
+ }
+ fprintf(logfile, "CR: 0x");
+ for (i = 0; i < 8; i++)
+ fprintf(logfile, "%01x", env->crf[i]);
+ fprintf(logfile, " [");
+ for (i = 0; i < 8; i++) {
+ char a = '-';
+
+ if (env->crf[i] & 0x08)
+ a = 'L';
+ else if (env->crf[i] & 0x04)
+ a = 'G';
+ else if (env->crf[i] & 0x02)
+ a = 'E';
+ fprintf(logfile, " %c%c", a, env->crf[i] & 0x01 ? 'O' : ' ');
+ }
+ fprintf(logfile, " ] ");
+ fprintf(logfile, "TB: 0x%08x %08x\n", env->spr[SPR_ENCODE(269)],
+ env->spr[SPR_ENCODE(268)]);
+ for (i = 0; i < 16; i++) {
+ if ((i & 3) == 0)
+ fprintf(logfile, "FPR%02d:", i);
+ fprintf(logfile, " %016llx", env->fpr[i]);
+ if ((i & 3) == 3)
+ fprintf(logfile, "\n");
+ }
+ fflush(logfile);
+ }
+}
+
+CPUPPCState *cpu_ppc_init(void)
+{
+ CPUPPCState *env;
+
+ cpu_exec_init();
+
+ env = malloc(sizeof(CPUPPCState));
+ if (!env)
+ return NULL;
+ memset(env, 0, sizeof(CPUPPCState));
+ env->PVR = 0;
+ if (create_ppc_proc(0) < 0)
+ return NULL;
+ init_spr_rights();
+
+ return env;
+}
+
+void cpu_ppc_close(CPUPPCState *env)
+{
+ /* Should also remove all opcode tables... */
+ free(env);
+}
+
+int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
+ int search_pc)
+{
+ DisasContext ctx;
+ opc_handler_t **table, *handler;
+ uint32_t pc_start;
+ uint16_t *gen_opc_end;
+ int j, lj = -1;
+ int ret = 0;
+
+ pc_start = tb->pc;
+ gen_opc_ptr = gen_opc_buf;
+ gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
+ gen_opparam_ptr = gen_opparam_buf;
+ ctx.nip = (uint32_t *)pc_start;
+ ctx.tb_offset = 0;
+ ctx.supervisor = msr_ip;
+ ctx.tb = tb;
+ ctx.exception = 0;
+
+ while (ret == 0 && gen_opc_ptr < gen_opc_end) {
+ if (search_pc) {
+ if (loglevel > 0)
+ fprintf(logfile, "Search PC...\n");
+ j = gen_opc_ptr - gen_opc_buf;
+ if (lj < j) {
+ lj++;
+ while (lj < j)
+ gen_opc_instr_start[lj++] = 0;
+ gen_opc_pc[lj] = (uint32_t)ctx.nip;
+ gen_opc_instr_start[lj] = 1;
+ }
+ }
+ ctx.opcode = __be32_to_cpu(*ctx.nip);
+#ifdef DEBUG_DISAS
+ if (loglevel > 0) {
+ fprintf(logfile, "----------------\n");
+ fprintf(logfile, "%p: translate opcode %08x\n",
+ ctx.nip, ctx.opcode);
+ }
+#endif
+ ctx.nip++;
+ table = ppc_opcodes;
+ handler = table[opc1(ctx.opcode)];
+ if (is_indirect_opcode(handler)) {
+ table = ind_table(handler);
+ handler = table[opc2(ctx.opcode)];
+ if (is_indirect_opcode(handler)) {
+ table = ind_table(handler);
+ handler = table[opc3(ctx.opcode)];
+ }
+ }
+ /* Is opcode *REALLY* valid ? */
+ if ((ctx.opcode & handler->inval) != 0) {
+ if (loglevel > 0) {
+ if (handler->handler == &gen_invalid) {
+ fprintf(logfile, "invalid/unsupported opcode: "
+ "%02x -%02x - %02x (%08x)\n", opc1(ctx.opcode),
+ opc2(ctx.opcode), opc3(ctx.opcode), ctx.opcode);
+ } else {
+ fprintf(logfile, "invalid bits: %08x for opcode: "
+ "%02x -%02x - %02x (%p)\n",
+ ctx.opcode & handler->inval, opc1(ctx.opcode),
+ opc2(ctx.opcode), opc3(ctx.opcode),
+ handler->handler);
+ }
+ }
+ ret = GET_RETVAL(gen_invalid, ctx.opcode);
+ } else {
+ ret = GET_RETVAL(*(handler->handler), ctx.opcode);
+ }
+ ctx.tb_offset++;
+#if defined (DO_SINGLE_STEP)
+ break;
+#endif
+ }
+#if defined (DO_STEP_FLUSH)
+ tb_flush();
+#endif
+ /* We need to update the time base */
+ if (!search_pc)
+ gen_op_update_tb(ctx.tb_offset);
+ /* If we are in step-by-step mode, do a branch to the next instruction
+ * so the nip will be up-to-date
+ */
+#if defined (DO_SINGLE_STEP)
+ if (ret == 0) {
+ gen_op_b((uint32_t)ctx.nip);
+ ret = EXCP_BRANCH;
+ }
+#endif
+ /* If the exeption isn't a PPC one,
+ * generate it now.
+ */
+ if (ret != EXCP_BRANCH) {
+ gen_op_set_T0(0);
+ if ((ret & 0x2000) == 0)
+ gen_op_raise_exception(ret);
+ }
+ /* TO BE FIXED: T0 hasn't got a proper value, which makes tb_add_jump
+ * do bad business and then qemu crashes !
+ */
+ gen_op_set_T0(0);
+ /* Generate the return instruction */
+ gen_op_exit_tb();
+ *gen_opc_ptr = INDEX_op_end;
+ if (!search_pc)
+ tb->size = (uint32_t)ctx.nip - pc_start;
+ else
+ tb->size = 0;
+// *gen_opc_ptr = INDEX_op_end;
+#ifdef DEBUG_DISAS
+ if (loglevel > 0) {
+ fprintf(logfile, "IN: %s\n", lookup_symbol((void *)pc_start));
+ disas(logfile, (void *)pc_start, (uint32_t)ctx.nip - pc_start, 0, 0);
+ fprintf(logfile, "\n");
+
+ fprintf(logfile, "OP:\n");
+ dump_ops(gen_opc_buf, gen_opparam_buf);
+ fprintf(logfile, "\n");
+ }
+#endif
+
+ return 0;
+}
+
+int gen_intermediate_code(CPUState *env, struct TranslationBlock *tb)
+{
+ return gen_intermediate_code_internal(env, tb, 0);
+}
+
+int gen_intermediate_code_pc(CPUState *env, struct TranslationBlock *tb)
+{
+ return gen_intermediate_code_internal(env, tb, 1);
+}
- Re: [Qemu-devel] [ADD] PPC processor emulation, (continued)
- Re: [Qemu-devel] [ADD] PPC processor emulation, Raymond W . Lucke IV, 2003/11/18
- Re: [Qemu-devel] [ADD] PPC processor emulation, Jocelyn Mayer, 2003/11/18
- Re: [Qemu-devel] [ADD] PPC processor emulation, Chad Page, 2003/11/18
- Re: [Qemu-devel] [ADD] PPC processor emulation, J. Mayer, 2003/11/18
- Re: [Qemu-devel] [ADD] PPC processor emulation, Benjamin Herrenschmidt, 2003/11/18
- Re: [Qemu-devel] [ADD] PPC processor emulation, Jocelyn Mayer, 2003/11/19
- Re: [Qemu-devel] [ADD] PPC processor emulation, Gwenole Beauchesne, 2003/11/18
- Re: [Qemu-devel] [ADD] PPC processor emulation, Johan Rydberg, 2003/11/18
- Re: [Qemu-devel] [ADD] PPC processor emulation, Gwenole Beauchesne, 2003/11/18
- Re: [Qemu-devel] [ADD] PPC processor emulation, Jocelyn Mayer, 2003/11/18
Re: [Qemu-devel] [ADD] PPC processor emulation,
J. Mayer <=
Re: [Qemu-devel] [ADD] PPC processor emulation, J. Mayer, 2003/11/18
[Qemu-devel] [PATCH] Term prompt for qemu, J. Mayer, 2003/11/18