HPPA (PA-RISC) host support

(Stuart Brady)


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4199 c046a42c-6fe2-441c-8c8c-71466251a162

2 files changed, 1184 insertions, 0 deletions

diff --git a/tcg/hppa/tcg-target.c b/tcg/hppa/tcg-target.c
new file mode 100644
index 0000000000..2d17c81908
--- /dev/null
+++ b/tcg/hppa/tcg-target.c
@@ -0,0 +1,980 @@
+/*
+ * Tiny Code Generator for QEMU
+ *
+ * Copyright (c) 2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
+    "%r0",
+    "%r1",
+    "%rp",
+    "%r3",
+    "%r4",
+    "%r5",
+    "%r6",
+    "%r7",
+    "%r8",
+    "%r9",
+    "%r10",
+    "%r11",
+    "%r12",
+    "%r13",
+    "%r14",
+    "%r15",
+    "%r16",
+    "%r17",
+    "%r18",
+    "%r19",
+    "%r20",
+    "%r21",
+    "%r22",
+    "%r23",
+    "%r24",
+    "%r25",
+    "%r26",
+    "%dp",
+    "%ret0",
+    "%ret1",
+    "%sp",
+    "%r31",
+};
+
+static const int tcg_target_reg_alloc_order[] = {
+    TCG_REG_R4,
+    TCG_REG_R5,
+    TCG_REG_R6,
+    TCG_REG_R7,
+    TCG_REG_R8,
+    TCG_REG_R9,
+    TCG_REG_R10,
+    TCG_REG_R11,
+    TCG_REG_R12,
+    TCG_REG_R13,
+
+    TCG_REG_R17,
+    TCG_REG_R14,
+    TCG_REG_R15,
+    TCG_REG_R16,
+};
+
+static const int tcg_target_call_iarg_regs[4] = {
+    TCG_REG_R26,
+    TCG_REG_R25,
+    TCG_REG_R24,
+    TCG_REG_R23,
+};
+
+static const int tcg_target_call_oarg_regs[2] = {
+    TCG_REG_RET0,
+    TCG_REG_RET1,
+};
+
+static void patch_reloc(uint8_t *code_ptr, int type,
+                        tcg_target_long value, tcg_target_long addend)
+{
+    switch (type) {
+    case R_PARISC_PCREL17F:
+        hppa_patch17f((uint32_t *)code_ptr, value, addend);
+        break;
+    default:
+        tcg_abort();
+    }
+}
+
+/* maximum number of register used for input function arguments */
+static inline int tcg_target_get_call_iarg_regs_count(int flags)
+{
+    return 4;
+}
+
+/* parse target specific constraints */
+int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
+{
+    const char *ct_str;
+
+    ct_str = *pct_str;
+    switch (ct_str[0]) {
+    case 'r':
+        ct->ct |= TCG_CT_REG;
+        tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
+        break;
+    case 'L': /* qemu_ld/st constraint */
+        ct->ct |= TCG_CT_REG;
+        tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
+        tcg_regset_reset_reg(ct->u.regs, TCG_REG_R26);
+        tcg_regset_reset_reg(ct->u.regs, TCG_REG_R25);
+        tcg_regset_reset_reg(ct->u.regs, TCG_REG_R24);
+        tcg_regset_reset_reg(ct->u.regs, TCG_REG_R23);
+        break;
+    default:
+        return -1;
+    }
+    ct_str++;
+    *pct_str = ct_str;
+    return 0;
+}
+
+/* test if a constant matches the constraint */
+static inline int tcg_target_const_match(tcg_target_long val,
+                                         const TCGArgConstraint *arg_ct)
+{
+    int ct;
+
+    ct = arg_ct->ct;
+
+    /* TODO */
+
+    return 0;
+}
+
+#define INSN_OP(x)       ((x) << 26)
+#define INSN_EXT3BR(x)   ((x) << 13)
+#define INSN_EXT3SH(x)   ((x) << 10)
+#define INSN_EXT4(x)     ((x) << 6)
+#define INSN_EXT5(x)     (x)
+#define INSN_EXT6(x)     ((x) << 6)
+#define INSN_EXT7(x)     ((x) << 6)
+#define INSN_EXT8A(x)    ((x) << 6)
+#define INSN_EXT8B(x)    ((x) << 5)
+#define INSN_T(x)        (x)
+#define INSN_R1(x)       ((x) << 16)
+#define INSN_R2(x)       ((x) << 21)
+#define INSN_DEP_LEN(x)  (32 - (x))
+#define INSN_SHDEP_CP(x) ((31 - (x)) << 5)
+#define INSN_SHDEP_P(x)  ((x) << 5)
+#define INSN_COND(x)     ((x) << 13)
+
+#define COND_NEVER 0
+#define COND_EQUAL 1
+#define COND_LT    2
+#define COND_LTEQ  3
+#define COND_LTU   4
+#define COND_LTUEQ 5
+#define COND_SV    6
+#define COND_OD    7
+
+
+/* Logical ADD */
+#define ARITH_ADD  (INSN_OP(0x02) | INSN_EXT6(0x28))
+#define ARITH_AND  (INSN_OP(0x02) | INSN_EXT6(0x08))
+#define ARITH_OR   (INSN_OP(0x02) | INSN_EXT6(0x09))
+#define ARITH_XOR  (INSN_OP(0x02) | INSN_EXT6(0x0a))
+#define ARITH_SUB  (INSN_OP(0x02) | INSN_EXT6(0x10))
+
+#define SHD        (INSN_OP(0x34) | INSN_EXT3SH(2))
+#define VSHD       (INSN_OP(0x34) | INSN_EXT3SH(0))
+#define DEP        (INSN_OP(0x35) | INSN_EXT3SH(3))
+#define ZDEP       (INSN_OP(0x35) | INSN_EXT3SH(2))
+#define ZVDEP      (INSN_OP(0x35) | INSN_EXT3SH(0))
+#define EXTRU      (INSN_OP(0x34) | INSN_EXT3SH(6))
+#define EXTRS      (INSN_OP(0x34) | INSN_EXT3SH(7))
+#define VEXTRS     (INSN_OP(0x34) | INSN_EXT3SH(5))
+
+#define SUBI       (INSN_OP(0x25))
+#define MTCTL      (INSN_OP(0x00) | INSN_EXT8B(0xc2))
+
+#define BL         (INSN_OP(0x3a) | INSN_EXT3BR(0))
+#define BLE_SR4    (INSN_OP(0x39) | (1 << 13))
+#define BV         (INSN_OP(0x3a) | INSN_EXT3BR(6))
+#define BV_N       (INSN_OP(0x3a) | INSN_EXT3BR(6) | 2)
+#define LDIL       (INSN_OP(0x08))
+#define LDO        (INSN_OP(0x0d))
+
+#define LDB        (INSN_OP(0x10))
+#define LDH        (INSN_OP(0x11))
+#define LDW        (INSN_OP(0x12))
+#define LDWM       (INSN_OP(0x13))
+
+#define STB        (INSN_OP(0x18))
+#define STH        (INSN_OP(0x19))
+#define STW        (INSN_OP(0x1a))
+#define STWM       (INSN_OP(0x1b))
+
+#define COMBT      (INSN_OP(0x20))
+#define COMBF      (INSN_OP(0x22))
+
+static int lowsignext(uint32_t val, int start, int length)
+{
+    return (((val << 1) & ~(~0 << length)) |
+            ((val >> (length - 1)) & 1)) << start;
+}
+
+static inline void tcg_out_mov(TCGContext *s, int ret, int arg)
+{
+    /* PA1.1 defines COPY as OR r,0,t */
+    tcg_out32(s, ARITH_OR | INSN_T(ret) | INSN_R1(arg) | INSN_R2(TCG_REG_R0));
+
+    /* PA2.0 defines COPY as LDO 0(r),t
+     * but hppa-dis.c is unaware of this definition */
+    /* tcg_out32(s, LDO | INSN_R1(ret) | INSN_R2(arg) | reassemble_14(0)); */
+}
+
+static inline void tcg_out_movi(TCGContext *s, TCGType type,
+                                int ret, tcg_target_long arg)
+{
+    if (arg == (arg & 0x1fff)) {
+        tcg_out32(s, LDO | INSN_R1(ret) | INSN_R2(TCG_REG_R0) |
+                     reassemble_14(arg));
+    } else {
+        tcg_out32(s, LDIL | INSN_R2(ret) |
+                     reassemble_21(lrsel((uint32_t)arg, 0)));
+        if (arg & 0x7ff)
+            tcg_out32(s, LDO | INSN_R1(ret) | INSN_R2(ret) |
+                         reassemble_14(rrsel((uint32_t)arg, 0)));
+    }
+}
+
+static inline void tcg_out_ld_raw(TCGContext *s, int ret,
+                                  tcg_target_long arg)
+{
+    tcg_out32(s, LDIL | INSN_R2(ret) |
+                 reassemble_21(lrsel((uint32_t)arg, 0)));
+    tcg_out32(s, LDW | INSN_R1(ret) | INSN_R2(ret) |
+                 reassemble_14(rrsel((uint32_t)arg, 0)));
+}
+
+static inline void tcg_out_ld_ptr(TCGContext *s, int ret,
+                                  tcg_target_long arg)
+{
+    tcg_out_ld_raw(s, ret, arg);
+}
+
+static inline void tcg_out_ldst(TCGContext *s, int ret, int addr, int offset,
+                                int op)
+{
+    if (offset == (offset & 0xfff))
+        tcg_out32(s, op | INSN_R1(ret) | INSN_R2(addr) |
+                 reassemble_14(offset));
+    else {
+        fprintf(stderr, "unimplemented %s with offset %d\n", __func__, offset);
+        tcg_abort();
+    }
+}
+
+static inline void tcg_out_ld(TCGContext *s, TCGType type, int ret,
+                              int arg1, tcg_target_long arg2)
+{
+    fprintf(stderr, "unimplemented %s\n", __func__);
+    tcg_abort();
+}
+
+static inline void tcg_out_st(TCGContext *s, TCGType type, int ret,
+                              int arg1, tcg_target_long arg2)
+{
+    fprintf(stderr, "unimplemented %s\n", __func__);
+    tcg_abort();
+}
+
+static inline void tcg_out_arith(TCGContext *s, int t, int r1, int r2, int op)
+{
+    tcg_out32(s, op | INSN_T(t) | INSN_R1(r1) | INSN_R2(r2));
+}
+
+static inline void tcg_out_arithi(TCGContext *s, int t, int r1,
+                                  tcg_target_long val, int op)
+{
+    tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R20, val);
+    tcg_out_arith(s, t, r1, TCG_REG_R20, op);
+}
+
+static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
+{
+    tcg_out_arithi(s, reg, reg, val, ARITH_ADD);
+}
+
+static inline void tcg_out_nop(TCGContext *s)
+{
+    tcg_out32(s, ARITH_OR | INSN_T(TCG_REG_R0) | INSN_R1(TCG_REG_R0) |
+                 INSN_R2(TCG_REG_R0));
+}
+
+static inline void tcg_out_ext8s(TCGContext *s, int ret, int arg) {
+    tcg_out32(s, EXTRS | INSN_R1(ret) | INSN_R2(arg) |
+                 INSN_SHDEP_P(31) | INSN_DEP_LEN(8));
+}
+
+static inline void tcg_out_ext16s(TCGContext *s, int ret, int arg) {
+    tcg_out32(s, EXTRS | INSN_R1(ret) | INSN_R2(arg) |
+                 INSN_SHDEP_P(31) | INSN_DEP_LEN(16));
+}
+
+static inline void tcg_out_bswap16(TCGContext *s, int ret, int arg) {
+    if(ret != arg)
+        tcg_out_mov(s, ret, arg);
+    tcg_out32(s, DEP | INSN_R2(ret) | INSN_R1(ret) |
+                 INSN_SHDEP_CP(15) | INSN_DEP_LEN(8));
+    tcg_out32(s, SHD | INSN_T(ret) | INSN_R1(TCG_REG_R0) |
+                 INSN_R2(ret) | INSN_SHDEP_CP(8));
+}
+
+static inline void tcg_out_bswap32(TCGContext *s, int ret, int arg, int temp) {
+    tcg_out32(s, SHD | INSN_T(temp) | INSN_R1(arg) |
+                 INSN_R2(arg) | INSN_SHDEP_CP(16));
+    tcg_out32(s, DEP | INSN_R2(temp) | INSN_R1(temp) |
+                 INSN_SHDEP_CP(15) | INSN_DEP_LEN(8));
+    tcg_out32(s, SHD | INSN_T(ret) | INSN_R1(arg) |
+                 INSN_R2(temp) | INSN_SHDEP_CP(8));
+}
+
+static inline void tcg_out_call(TCGContext *s, void *func)
+{
+    uint32_t val = (uint32_t)__canonicalize_funcptr_for_compare(func);
+    tcg_out32(s, LDIL | INSN_R2(TCG_REG_R20) |
+                 reassemble_21(lrsel(val, 0)));
+    tcg_out32(s, BLE_SR4 | INSN_R2(TCG_REG_R20) |
+                 reassemble_17(rrsel(val, 0) >> 2));
+    tcg_out_mov(s, TCG_REG_RP, TCG_REG_R31);
+}
+
+#if defined(CONFIG_SOFTMMU)
+extern void __ldb_mmu(void);
+extern void __ldw_mmu(void);
+extern void __ldl_mmu(void);
+extern void __ldq_mmu(void);
+
+extern void __stb_mmu(void);
+extern void __stw_mmu(void);
+extern void __stl_mmu(void);
+extern void __stq_mmu(void);
+
+static void *qemu_ld_helpers[4] = {
+    __ldb_mmu,
+    __ldw_mmu,
+    __ldl_mmu,
+    __ldq_mmu,
+};
+
+static void *qemu_st_helpers[4] = {
+    __stb_mmu,
+    __stw_mmu,
+    __stl_mmu,
+    __stq_mmu,
+};
+#endif
+
+static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc)
+{
+    int addr_reg, data_reg, data_reg2, r0, r1, mem_index, s_bits, bswap;
+#if defined(CONFIG_SOFTMMU)
+    uint32_t *label1_ptr, *label2_ptr;
+#endif
+#if TARGET_LONG_BITS == 64
+#if defined(CONFIG_SOFTMMU)
+    uint32_t *label3_ptr;
+#endif
+    int addr_reg2;
+#endif
+
+    data_reg = *args++;
+    if (opc == 3)
+        data_reg2 = *args++;
+    else
+        data_reg2 = 0; /* surpress warning */
+    addr_reg = *args++;
+#if TARGET_LONG_BITS == 64
+    addr_reg2 = *args++;
+#endif
+    mem_index = *args;
+    s_bits = opc & 3;
+
+    r0 = TCG_REG_R26;
+    r1 = TCG_REG_R25;
+
+#if defined(CONFIG_SOFTMMU)
+    tcg_out_mov(s, r1, addr_reg);
+
+    tcg_out_mov(s, r0, addr_reg);
+
+    tcg_out32(s, SHD | INSN_T(r1) | INSN_R1(TCG_REG_R0) | INSN_R2(r1) |
+                 INSN_SHDEP_CP(TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS));
+
+    tcg_out_arithi(s, r0, r0, TARGET_PAGE_MASK | ((1 << s_bits) - 1),
+                   ARITH_AND);
+
+    tcg_out_arithi(s, r1, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS,
+                   ARITH_AND);
+
+    tcg_out_arith(s, r1, r1, TCG_AREG0, ARITH_ADD);
+    tcg_out_arithi(s, r1, r1,
+                   offsetof(CPUState, tlb_table[mem_index][0].addr_read),
+                   ARITH_ADD);
+
+    tcg_out_ldst(s, TCG_REG_R20, r1, 0, LDW);
+
+#if TARGET_LONG_BITS == 32
+    /* if equal, jump to label1 */
+    label1_ptr = (uint32_t *)s->code_ptr;
+    tcg_out32(s, COMBT | INSN_R1(TCG_REG_R20) | INSN_R2(r0) |
+                 INSN_COND(COND_EQUAL));
+    tcg_out_mov(s, r0, addr_reg); /* delay slot */
+#else
+    /* if not equal, jump to label3 */
+    label3_ptr = (uint32_t *)s->code_ptr;
+    tcg_out32(s, COMBF | INSN_R1(TCG_REG_R20) | INSN_R2(r0) |
+                 INSN_COND(COND_EQUAL));
+    tcg_out_mov(s, r0, addr_reg); /* delay slot */
+
+    tcg_out_ldst(s, TCG_REG_R20, r1, 4, LDW);
+
+    /* if equal, jump to label1 */
+    label1_ptr = (uint32_t *)s->code_ptr;
+    tcg_out32(s, COMBT | INSN_R1(TCG_REG_R20) | INSN_R2(addr_reg2) |
+                 INSN_COND(COND_EQUAL));
+    tcg_out_nop(s); /* delay slot */
+
+    /* label3: */
+    *label3_ptr |= reassemble_12((uint32_t *)s->code_ptr - label3_ptr - 2);
+#endif
+
+#if TARGET_LONG_BITS == 32
+    tcg_out_mov(s, TCG_REG_R26, addr_reg);
+    tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R25, mem_index);
+#else
+    tcg_out_mov(s, TCG_REG_R26, addr_reg);
+    tcg_out_mov(s, TCG_REG_R25, addr_reg2);
+    tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R24, mem_index);
+#endif
+
+    tcg_out_call(s, qemu_ld_helpers[s_bits]);
+
+    switch(opc) {
+        case 0 | 4:
+            tcg_out_ext8s(s, data_reg, TCG_REG_RET0);
+            break;
+        case 1 | 4:
+            tcg_out_ext16s(s, data_reg, TCG_REG_RET0);
+            break;
+        case 0:
+        case 1:
+        case 2:
+        default:
+            tcg_out_mov(s, data_reg, TCG_REG_RET0);
+            break;
+        case 3:
+            tcg_abort();
+            tcg_out_mov(s, data_reg, TCG_REG_RET0);
+            tcg_out_mov(s, data_reg2, TCG_REG_RET1);
+            break;
+    }
+
+    /* jump to label2 */
+    label2_ptr = (uint32_t *)s->code_ptr;
+    tcg_out32(s, BL | INSN_R2(TCG_REG_R0) | 2);
+
+    /* label1: */
+    *label1_ptr |= reassemble_12((uint32_t *)s->code_ptr - label1_ptr - 2);
+
+    tcg_out_arithi(s, TCG_REG_R20, r1,
+                   offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_read),
+                   ARITH_ADD);
+    tcg_out_ldst(s, TCG_REG_R20, TCG_REG_R20, 0, LDW);
+    tcg_out_arith(s, r0, r0, TCG_REG_R20, ARITH_ADD);
+#else
+    r0 = addr_reg;
+#endif
+
+#ifdef TARGET_WORDS_BIGENDIAN
+    bswap = 0;
+#else
+    bswap = 1;
+#endif
+    switch (opc) {
+        case 0:
+            tcg_out_ldst(s, data_reg, r0, 0, LDB);
+            break;
+        case 0 | 4:
+            tcg_out_ldst(s, data_reg, r0, 0, LDB);
+            tcg_out_ext8s(s, data_reg, data_reg);
+            break;
+        case 1:
+            tcg_out_ldst(s, data_reg, r0, 0, LDH);
+            if (bswap)
+                tcg_out_bswap16(s, data_reg, data_reg);
+            break;
+        case 1 | 4:
+            tcg_out_ldst(s, data_reg, r0, 0, LDH);
+            if (bswap)
+                tcg_out_bswap16(s, data_reg, data_reg);
+            tcg_out_ext16s(s, data_reg, data_reg);
+            break;
+        case 2:
+            tcg_out_ldst(s, data_reg, r0, 0, LDW);
+            if (bswap)
+                tcg_out_bswap32(s, data_reg, data_reg, TCG_REG_R20);
+            break;
+        case 3:
+            tcg_abort();
+            if (!bswap) {
+                tcg_out_ldst(s, data_reg, r0, 0, LDW);
+                tcg_out_ldst(s, data_reg2, r0, 4, LDW);
+            } else {
+                tcg_out_ldst(s, data_reg, r0, 4, LDW);
+                tcg_out_bswap32(s, data_reg, data_reg, TCG_REG_R20);
+                tcg_out_ldst(s, data_reg2, r0, 0, LDW);
+                tcg_out_bswap32(s, data_reg2, data_reg2, TCG_REG_R20);
+            }
+            break;
+        default:
+            tcg_abort();
+    }
+
+#if defined(CONFIG_SOFTMMU)
+    /* label2: */
+    *label2_ptr |= reassemble_17((uint32_t *)s->code_ptr - label2_ptr - 2);
+#endif
+}
+
+static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc)
+{
+    int addr_reg, data_reg, data_reg2, r0, r1, mem_index, s_bits, bswap;
+#if defined(CONFIG_SOFTMMU)
+    uint32_t *label1_ptr, *label2_ptr;
+#endif
+#if TARGET_LONG_BITS == 64
+#if defined(CONFIG_SOFTMMU)
+    uint32_t *label3_ptr;
+#endif
+    int addr_reg2;
+#endif
+
+    data_reg = *args++;
+    if (opc == 3)
+        data_reg2 = *args++;
+    else
+        data_reg2 = 0; /* surpress warning */
+    addr_reg = *args++;
+#if TARGET_LONG_BITS == 64
+    addr_reg2 = *args++;
+#endif
+    mem_index = *args;
+
+    s_bits = opc;
+
+    r0 = TCG_REG_R26;
+    r1 = TCG_REG_R25;
+
+#if defined(CONFIG_SOFTMMU)
+    tcg_out_mov(s, r1, addr_reg);
+
+    tcg_out_mov(s, r0, addr_reg);
+
+    tcg_out32(s, SHD | INSN_T(r1) | INSN_R1(TCG_REG_R0) | INSN_R2(r1) |
+                 INSN_SHDEP_CP(TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS));
+
+    tcg_out_arithi(s, r0, r0, TARGET_PAGE_MASK | ((1 << s_bits) - 1),
+                   ARITH_AND);
+
+    tcg_out_arithi(s, r1, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS,
+                   ARITH_AND);
+
+    tcg_out_arith(s, r1, r1, TCG_AREG0, ARITH_ADD);
+    tcg_out_arithi(s, r1, r1,
+                   offsetof(CPUState, tlb_table[mem_index][0].addr_write),
+                   ARITH_ADD);
+
+    tcg_out_ldst(s, TCG_REG_R20, r1, 0, LDW);
+
+#if TARGET_LONG_BITS == 32
+    /* if equal, jump to label1 */
+    label1_ptr = (uint32_t *)s->code_ptr;
+    tcg_out32(s, COMBT | INSN_R1(TCG_REG_R20) | INSN_R2(r0) |
+                 INSN_COND(COND_EQUAL));
+    tcg_out_mov(s, r0, addr_reg); /* delay slot */
+#else
+    /* if not equal, jump to label3 */
+    label3_ptr = (uint32_t *)s->code_ptr;
+    tcg_out32(s, COMBF | INSN_R1(TCG_REG_R20) | INSN_R2(r0) |
+                 INSN_COND(COND_EQUAL));
+    tcg_out_mov(s, r0, addr_reg); /* delay slot */
+
+    tcg_out_ldst(s, TCG_REG_R20, r1, 4, LDW);
+
+    /* if equal, jump to label1 */
+    label1_ptr = (uint32_t *)s->code_ptr;
+    tcg_out32(s, COMBT | INSN_R1(TCG_REG_R20) | INSN_R2(addr_reg2) |
+                 INSN_COND(COND_EQUAL));
+    tcg_out_nop(s); /* delay slot */
+
+    /* label3: */
+    *label3_ptr |= reassemble_12((uint32_t *)s->code_ptr - label3_ptr - 2);
+#endif
+
+    tcg_out_mov(s, TCG_REG_R26, addr_reg);
+#if TARGET_LONG_BITS == 64
+    tcg_out_mov(s, TCG_REG_R25, addr_reg2);
+    if (opc == 3) {
+        tcg_abort();
+        tcg_out_mov(s, TCG_REG_R24, data_reg);
+        tcg_out_mov(s, TCG_REG_R23, data_reg2);
+        /* TODO: push mem_index */
+        tcg_abort();
+    } else {
+        switch(opc) {
+        case 0:
+            tcg_out32(s, EXTRU | INSN_R1(TCG_REG_R24) | INSN_R2(data_reg) |
+                         INSN_SHDEP_P(31) | INSN_DEP_LEN(8));
+            break;
+        case 1:
+            tcg_out32(s, EXTRU | INSN_R1(TCG_REG_R24) | INSN_R2(data_reg) |
+                         INSN_SHDEP_P(31) | INSN_DEP_LEN(16));
+            break;
+        case 2:
+            tcg_out_mov(s, TCG_REG_R24, data_reg);
+            break;
+        }
+        tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R23, mem_index);
+    }
+#else
+    if (opc == 3) {
+        tcg_abort();
+        tcg_out_mov(s, TCG_REG_R25, data_reg);
+        tcg_out_mov(s, TCG_REG_R24, data_reg2);
+        tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R23, mem_index);
+    } else {
+        switch(opc) {
+        case 0:
+            tcg_out32(s, EXTRU | INSN_R1(TCG_REG_R25) | INSN_R2(data_reg) |
+                         INSN_SHDEP_P(31) | INSN_DEP_LEN(8));
+            break;
+        case 1:
+            tcg_out32(s, EXTRU | INSN_R1(TCG_REG_R25) | INSN_R2(data_reg) |
+                         INSN_SHDEP_P(31) | INSN_DEP_LEN(16));
+            break;
+        case 2:
+            tcg_out_mov(s, TCG_REG_R25, data_reg);
+            break;
+        }
+        tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R24, mem_index);
+    }
+#endif
+    tcg_out_call(s, qemu_st_helpers[s_bits]);
+
+    /* jump to label2 */
+    label2_ptr = (uint32_t *)s->code_ptr;
+    tcg_out32(s, BL | INSN_R2(TCG_REG_R0) | 2);
+
+    /* label1: */
+    *label1_ptr |= reassemble_12((uint32_t *)s->code_ptr - label1_ptr - 2);
+
+    tcg_out_arithi(s, TCG_REG_R20, r1,
+                   offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_write),
+                   ARITH_ADD);
+    tcg_out_ldst(s, TCG_REG_R20, TCG_REG_R20, 0, LDW);
+    tcg_out_arith(s, r0, r0, TCG_REG_R20, ARITH_ADD);
+#else
+    r0 = addr_reg;
+#endif
+
+#ifdef TARGET_WORDS_BIGENDIAN
+    bswap = 0;
+#else
+    bswap = 1;
+#endif
+    switch (opc) {
+    case 0:
+        tcg_out_ldst(s, data_reg, r0, 0, STB);
+        break;
+    case 1:
+        if (bswap) {
+            tcg_out_bswap16(s, TCG_REG_R20, data_reg);
+            data_reg = TCG_REG_R20;
+        }
+        tcg_out_ldst(s, data_reg, r0, 0, STH);
+        break;
+    case 2:
+        if (bswap) {
+            tcg_out_bswap32(s, TCG_REG_R20, data_reg, TCG_REG_R20);
+            data_reg = TCG_REG_R20;
+        }
+        tcg_out_ldst(s, data_reg, r0, 0, STW);
+        break;
+    case 3:
+        tcg_abort();
+        if (!bswap) {
+            tcg_out_ldst(s, data_reg, r0, 0, STW);
+            tcg_out_ldst(s, data_reg2, r0, 4, STW);
+        } else {
+            tcg_out_bswap32(s, TCG_REG_R20, data_reg, TCG_REG_R20);
+            tcg_out_ldst(s, TCG_REG_R20, r0, 4, STW);
+            tcg_out_bswap32(s, TCG_REG_R20, data_reg2, TCG_REG_R20);
+            tcg_out_ldst(s, TCG_REG_R20, r0, 0, STW);
+        }
+        break;
+    default:
+        tcg_abort();
+    }
+
+#if defined(CONFIG_SOFTMMU)
+    /* label2: */
+    *label2_ptr |= reassemble_17((uint32_t *)s->code_ptr - label2_ptr - 2);
+#endif
+}
+
+static inline void tcg_out_op(TCGContext *s, int opc, const TCGArg *args,
+                              const int *const_args)
+{
+    int c;
+
+    switch (opc) {
+    case INDEX_op_exit_tb:
+        tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_RET0, args[0]);
+        tcg_out32(s, BV_N | INSN_R2(TCG_REG_R18));
+        break;
+    case INDEX_op_goto_tb:
+        if (s->tb_jmp_offset) {
+            /* direct jump method */
+            fprintf(stderr, "goto_tb direct\n");
+            tcg_abort();
+            tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R20, args[0]);
+            tcg_out32(s, BV_N | INSN_R2(TCG_REG_R20));
+            s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
+        } else {
+            /* indirect jump method */
+            tcg_out_ld_ptr(s, TCG_REG_R20,
+                           (tcg_target_long)(s->tb_next + args[0]));
+            tcg_out32(s, BV_N | INSN_R2(TCG_REG_R20));
+        }
+        s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
+        break;
+    case INDEX_op_call:
+        tcg_out32(s, BLE_SR4 | INSN_R2(args[0]));
+        tcg_out_mov(s, TCG_REG_RP, TCG_REG_R31);
+        break;
+    case INDEX_op_jmp:
+        fprintf(stderr, "unimplemented jmp\n");
+        tcg_abort();
+        break;
+    case INDEX_op_br:
+        fprintf(stderr, "unimplemented br\n");
+        tcg_abort();
+        break;
+    case INDEX_op_movi_i32:
+        tcg_out_movi(s, TCG_TYPE_I32, args[0], (uint32_t)args[1]);
+        break;
+
+    case INDEX_op_ld8u_i32:
+        tcg_out_ldst(s, args[0], args[1], args[2], LDB);
+        break;
+    case INDEX_op_ld8s_i32:
+        tcg_out_ldst(s, args[0], args[1], args[2], LDB);
+        tcg_out_ext8s(s, args[0], args[0]);
+        break;
+    case INDEX_op_ld16u_i32:
+        tcg_out_ldst(s, args[0], args[1], args[2], LDH);
+        break;
+    case INDEX_op_ld16s_i32:
+        tcg_out_ldst(s, args[0], args[1], args[2], LDH);
+        tcg_out_ext16s(s, args[0], args[0]);
+        break;
+    case INDEX_op_ld_i32:
+        tcg_out_ldst(s, args[0], args[1], args[2], LDW);
+        break;
+
+    case INDEX_op_st8_i32:
+        tcg_out_ldst(s, args[0], args[1], args[2], STB);
+        break;
+    case INDEX_op_st16_i32:
+        tcg_out_ldst(s, args[0], args[1], args[2], STH);
+        break;
+    case INDEX_op_st_i32:
+        tcg_out_ldst(s, args[0], args[1], args[2], STW);
+        break;
+
+    case INDEX_op_sub_i32:
+        c = ARITH_SUB;
+        goto gen_arith;
+    case INDEX_op_and_i32:
+        c = ARITH_AND;
+        goto gen_arith;
+    case INDEX_op_or_i32:
+        c = ARITH_OR;
+        goto gen_arith;
+    case INDEX_op_xor_i32:
+        c = ARITH_XOR;
+        goto gen_arith;
+    case INDEX_op_add_i32:
+        c = ARITH_ADD;
+        goto gen_arith;
+
+    case INDEX_op_shl_i32:
+        tcg_out32(s, SUBI | INSN_R1(TCG_REG_R20) | INSN_R2(args[2]) |
+                     lowsignext(0x1f, 0, 11));
+        tcg_out32(s, MTCTL | INSN_R2(11) | INSN_R1(TCG_REG_R20));
+        tcg_out32(s, ZVDEP | INSN_R2(args[0]) | INSN_R1(args[1]) |
+                     INSN_DEP_LEN(32));
+        break;
+    case INDEX_op_shr_i32:
+        tcg_out32(s, MTCTL | INSN_R2(11) | INSN_R1(args[2]));
+        tcg_out32(s, VSHD | INSN_T(args[0]) | INSN_R1(TCG_REG_R0) |
+                     INSN_R2(args[1]));
+        break;
+    case INDEX_op_sar_i32:
+        tcg_out32(s, SUBI | INSN_R1(TCG_REG_R20) | INSN_R2(args[2]) |
+                     lowsignext(0x1f, 0, 11));
+        tcg_out32(s, MTCTL | INSN_R2(11) | INSN_R1(TCG_REG_R20));
+        tcg_out32(s, VEXTRS | INSN_R1(args[0]) | INSN_R2(args[1]) |
+                     INSN_DEP_LEN(32));
+        break;
+
+    case INDEX_op_mul_i32:
+        fprintf(stderr, "unimplemented mul\n");
+        tcg_abort();
+        break;
+    case INDEX_op_mulu2_i32:
+        fprintf(stderr, "unimplemented mulu2\n");
+        tcg_abort();
+        break;
+    case INDEX_op_div2_i32:
+        fprintf(stderr, "unimplemented div2\n");
+        tcg_abort();
+        break;
+    case INDEX_op_divu2_i32:
+        fprintf(stderr, "unimplemented divu2\n");
+        tcg_abort();
+        break;
+
+    case INDEX_op_brcond_i32:
+        fprintf(stderr, "unimplemented brcond\n");
+        tcg_abort();
+        break;
+
+    case INDEX_op_qemu_ld8u:
+        tcg_out_qemu_ld(s, args, 0);
+        break;
+    case INDEX_op_qemu_ld8s:
+        tcg_out_qemu_ld(s, args, 0 | 4);
+        break;
+    case INDEX_op_qemu_ld16u:
+        tcg_out_qemu_ld(s, args, 1);
+        break;
+    case INDEX_op_qemu_ld16s:
+        tcg_out_qemu_ld(s, args, 1 | 4);
+        break;
+    case INDEX_op_qemu_ld32u:
+        tcg_out_qemu_ld(s, args, 2);
+        break;
+
+    case INDEX_op_qemu_st8:
+        tcg_out_qemu_st(s, args, 0);
+        break;
+    case INDEX_op_qemu_st16:
+        tcg_out_qemu_st(s, args, 1);
+        break;
+    case INDEX_op_qemu_st32:
+        tcg_out_qemu_st(s, args, 2);
+        break;
+
+    default:
+        fprintf(stderr, "unknown opcode 0x%x\n", opc);
+        tcg_abort();
+    }
+    return;
+
+gen_arith:
+    tcg_out_arith(s, args[0], args[1], args[2], c);
+}
+
+static const TCGTargetOpDef hppa_op_defs[] = {
+    { INDEX_op_exit_tb, { } },
+    { INDEX_op_goto_tb, { } },
+
+    { INDEX_op_call, { "r" } },
+    { INDEX_op_jmp, { "r" } },
+    { INDEX_op_br, { } },
+
+    { INDEX_op_mov_i32, { "r", "r" } },
+    { INDEX_op_movi_i32, { "r" } },
+    { INDEX_op_ld8u_i32, { "r", "r" } },
+    { INDEX_op_ld8s_i32, { "r", "r" } },
+    { INDEX_op_ld16u_i32, { "r", "r" } },
+    { INDEX_op_ld16s_i32, { "r", "r" } },
+    { INDEX_op_ld_i32, { "r", "r" } },
+    { INDEX_op_st8_i32, { "r", "r" } },
+    { INDEX_op_st16_i32, { "r", "r" } },
+    { INDEX_op_st_i32, { "r", "r" } },
+
+    { INDEX_op_add_i32, { "r", "r", "r" } },
+    { INDEX_op_sub_i32, { "r", "r", "r" } },
+    { INDEX_op_and_i32, { "r", "r", "r" } },
+    { INDEX_op_or_i32, { "r", "r", "r" } },
+    { INDEX_op_xor_i32, { "r", "r", "r" } },
+
+    { INDEX_op_shl_i32, { "r", "r", "r" } },
+    { INDEX_op_shr_i32, { "r", "r", "r" } },
+    { INDEX_op_sar_i32, { "r", "r", "r" } },
+
+    { INDEX_op_brcond_i32, { "r", "r" } },
+
+#if TARGET_LONG_BITS == 32
+    { INDEX_op_qemu_ld8u, { "r", "L" } },
+    { INDEX_op_qemu_ld8s, { "r", "L" } },
+    { INDEX_op_qemu_ld16u, { "r", "L" } },
+    { INDEX_op_qemu_ld16s, { "r", "L" } },
+    { INDEX_op_qemu_ld32u, { "r", "L" } },
+    { INDEX_op_qemu_ld64, { "r", "r", "L" } },
+
+    { INDEX_op_qemu_st8, { "L", "L" } },
+    { INDEX_op_qemu_st16, { "L", "L" } },
+    { INDEX_op_qemu_st32, { "L", "L" } },
+    { INDEX_op_qemu_st64, { "L", "L", "L" } },
+#else
+    { INDEX_op_qemu_ld8u, { "r", "L", "L" } },
+    { INDEX_op_qemu_ld8s, { "r", "L", "L" } },
+    { INDEX_op_qemu_ld16u, { "r", "L", "L" } },
+    { INDEX_op_qemu_ld16s, { "r", "L", "L" } },
+    { INDEX_op_qemu_ld32u, { "r", "L", "L" } },
+    { INDEX_op_qemu_ld32s, { "r", "L", "L" } },
+    { INDEX_op_qemu_ld64, { "r", "r", "L", "L" } },
+
+    { INDEX_op_qemu_st8, { "L", "L", "L" } },
+    { INDEX_op_qemu_st16, { "L", "L", "L" } },
+    { INDEX_op_qemu_st32, { "L", "L", "L" } },
+    { INDEX_op_qemu_st64, { "L", "L", "L", "L" } },
+#endif
+    { -1 },
+};
+
+void tcg_target_init(TCGContext *s)
+{
+    tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff);
+    tcg_regset_set32(tcg_target_call_clobber_regs, 0,
+                     (1 << TCG_REG_R20) |
+                     (1 << TCG_REG_R21) |
+                     (1 << TCG_REG_R22) |
+                     (1 << TCG_REG_R23) |
+                     (1 << TCG_REG_R24) |
+                     (1 << TCG_REG_R25) |
+                     (1 << TCG_REG_R26));
+
+    tcg_regset_clear(s->reserved_regs);
+    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0);  /* hardwired to zero */
+    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1);  /* addil target */
+    tcg_regset_set_reg(s->reserved_regs, TCG_REG_RP);  /* link register */
+    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R3);  /* frame pointer */
+    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R18); /* return pointer */
+    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R19); /* clobbered w/o pic */
+    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R20); /* reserved */
+    tcg_regset_set_reg(s->reserved_regs, TCG_REG_DP);  /* data pointer */
+    tcg_regset_set_reg(s->reserved_regs, TCG_REG_SP);  /* stack pointer */
+    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R31); /* ble link reg */
+
+    tcg_add_target_add_op_defs(hppa_op_defs);
+}
diff --git a/tcg/hppa/tcg-target.h b/tcg/hppa/tcg-target.h
new file mode 100644
index 0000000000..8e2693d0ef
--- /dev/null
+++ b/tcg/hppa/tcg-target.h
@@ -0,0 +1,204 @@
+/*
+ * Tiny Code Generator for QEMU
+ *
+ * Copyright (c) 2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#define TCG_TARGET_HPPA 1
+
+#if defined(_PA_RISC1_1)
+#define TCG_TARGET_REG_BITS 32
+#else
+#error unsupported
+#endif
+
+#define TCG_TARGET_WORDS_BIGENDIAN
+
+#define TCG_TARGET_NB_REGS 32
+
+enum {
+    TCG_REG_R0 = 0,
+    TCG_REG_R1,
+    TCG_REG_RP,
+    TCG_REG_R3,
+    TCG_REG_R4,
+    TCG_REG_R5,
+    TCG_REG_R6,
+    TCG_REG_R7,
+    TCG_REG_R8,
+    TCG_REG_R9,
+    TCG_REG_R10,
+    TCG_REG_R11,
+    TCG_REG_R12,
+    TCG_REG_R13,
+    TCG_REG_R14,
+    TCG_REG_R15,
+    TCG_REG_R16,
+    TCG_REG_R17,
+    TCG_REG_R18,
+    TCG_REG_R19,
+    TCG_REG_R20,
+    TCG_REG_R21,
+    TCG_REG_R22,
+    TCG_REG_R23,
+    TCG_REG_R24,
+    TCG_REG_R25,
+    TCG_REG_R26,
+    TCG_REG_DP,
+    TCG_REG_RET0,
+    TCG_REG_RET1,
+    TCG_REG_SP,
+    TCG_REG_R31,
+};
+
+/* used for function call generation */
+#define TCG_REG_CALL_STACK TCG_REG_SP
+#define TCG_TARGET_STACK_ALIGN 16
+#define TCG_TARGET_STACK_GROWSUP
+
+/* optional instructions */
+//#define TCG_TARGET_HAS_ext8s_i32
+//#define TCG_TARGET_HAS_ext16s_i32
+//#define TCG_TARGET_HAS_bswap16_i32
+//#define TCG_TARGET_HAS_bswap_i32
+
+/* Note: must be synced with dyngen-exec.h */
+#define TCG_AREG0 TCG_REG_R17
+#define TCG_AREG1 TCG_REG_R14
+#define TCG_AREG2 TCG_REG_R15
+#define TCG_AREG3 TCG_REG_R16
+
+static inline void flush_icache_range(unsigned long start, unsigned long stop)
+{
+    start &= ~31;
+    while (start <= stop)
+    {
+        asm volatile ("fdc 0(%0)\n"
+                      "sync\n"
+                      "fic 0(%%sr4, %0)\n"
+                      "sync\n"
+                      : : "r"(start) : "memory");
+        start += 32;
+    }
+}
+
+/* supplied by libgcc */
+extern void *__canonicalize_funcptr_for_compare(void *);
+
+/* Field selection types defined by hppa */
+#define rnd(x)                  (((x)+0x1000)&~0x1fff)
+/* lsel: select left 21 bits */
+#define lsel(v,a)               (((v)+(a))>>11)
+/* rsel: select right 11 bits */
+#define rsel(v,a)               (((v)+(a))&0x7ff)
+/* lrsel with rounding of addend to nearest 8k */
+#define lrsel(v,a)              (((v)+rnd(a))>>11)
+/* rrsel with rounding of addend to nearest 8k */
+#define rrsel(v,a)              ((((v)+rnd(a))&0x7ff)+((a)-rnd(a)))
+
+#define mask(x,sz)              ((x) & ~((1<<(sz))-1))
+
+static inline int reassemble_12(int as12)
+{
+    return (((as12 & 0x800) >> 11) |
+            ((as12 & 0x400) >> 8) |
+            ((as12 & 0x3ff) << 3));
+}
+
+static inline int reassemble_14(int as14)
+{
+    return (((as14 & 0x1fff) << 1) |
+            ((as14 & 0x2000) >> 13));
+}
+
+static inline int reassemble_17(int as17)
+{
+    return (((as17 & 0x10000) >> 16) |
+            ((as17 & 0x0f800) << 5) |
+            ((as17 & 0x00400) >> 8) |
+            ((as17 & 0x003ff) << 3));
+}
+
+static inline int reassemble_21(int as21)
+{
+    return (((as21 & 0x100000) >> 20) |
+            ((as21 & 0x0ffe00) >> 8) |
+            ((as21 & 0x000180) << 7) |
+            ((as21 & 0x00007c) << 14) |
+            ((as21 & 0x000003) << 12));
+}
+
+static inline void hppa_patch21l(uint32_t *insn, int val, int addend)
+{
+    val = lrsel(val, addend);
+    *insn = mask(*insn, 21) | reassemble_21(val);
+}
+
+static inline void hppa_patch14r(uint32_t *insn, int val, int addend)
+{
+    val = rrsel(val, addend);
+    *insn = mask(*insn, 14) | reassemble_14(val);
+}
+
+static inline void hppa_patch17r(uint32_t *insn, int val, int addend)
+{
+    val = rrsel(val, addend);
+    *insn = (*insn & ~0x1f1ffd) | reassemble_17(val);
+}
+
+
+static inline void hppa_patch21l_dprel(uint32_t *insn, int val, int addend)
+{
+    register unsigned int dp asm("r27");
+    hppa_patch21l(insn, val - dp, addend);
+}
+
+static inline void hppa_patch14r_dprel(uint32_t *insn, int val, int addend)
+{
+    register unsigned int dp asm("r27");
+    hppa_patch14r(insn, val - dp, addend);
+}
+
+static inline void hppa_patch17f(uint32_t *insn, int val, int addend)
+{
+    int dot = (int)insn & ~0x3;
+    int v = ((val + addend) - dot - 8) / 4;
+    if (v > (1 << 16) || v < -(1 << 16)) {
+        printf("cannot fit branch to offset %d [%08x->%08x]\n", v, dot, val);
+        abort();
+    }
+    *insn = (*insn & ~0x1f1ffd) | reassemble_17(v);
+}
+
+static inline void hppa_load_imm21l(uint32_t *insn, int val, int addend)
+{
+    /* Transform addil L'sym(%dp) to ldil L'val, %r1 */
+    *insn = 0x20200000 | reassemble_21(lrsel(val, 0));
+}
+
+static inline void hppa_load_imm14r(uint32_t *insn, int val, int addend)
+{
+    /* Transform ldw R'sym(%r1), %rN to ldo R'sym(%r1), %rN */
+    hppa_patch14r(insn, val, addend);
+    /* HACK */
+    if (addend == 0)
+        *insn = (*insn & ~0xfc000000) | (0x0d << 26);
+}