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-rw-r--r--target-s390x/Makefile.objs3
-rw-r--r--target-s390x/mem_helper.c1190
-rw-r--r--target-s390x/op_helper.c1159
3 files changed, 1193 insertions, 1159 deletions
diff --git a/target-s390x/Makefile.objs b/target-s390x/Makefile.objs
index e8f66e93a7..b9b306170c 100644
--- a/target-s390x/Makefile.objs
+++ b/target-s390x/Makefile.objs
@@ -1,5 +1,5 @@
obj-y += translate.o op_helper.o helper.o cpu.o interrupt.o
-obj-y += int_helper.o fpu_helper.o cc_helper.o
+obj-y += int_helper.o fpu_helper.o cc_helper.o mem_helper.o
obj-$(CONFIG_SOFTMMU) += machine.o
obj-$(CONFIG_KVM) += kvm.o
@@ -7,3 +7,4 @@ $(obj)/op_helper.o: QEMU_CFLAGS += $(HELPER_CFLAGS)
$(obj)/int_helper.o: QEMU_CFLAGS += $(HELPER_CFLAGS)
$(obj)/fpu_helper.o: QEMU_CFLAGS += $(HELPER_CFLAGS)
$(obj)/cc_helper.o: QEMU_CFLAGS += $(HELPER_CFLAGS)
+$(obj)/mem_helper.o: QEMU_CFLAGS += $(HELPER_CFLAGS)
diff --git a/target-s390x/mem_helper.c b/target-s390x/mem_helper.c
new file mode 100644
index 0000000000..ba05e65cd8
--- /dev/null
+++ b/target-s390x/mem_helper.c
@@ -0,0 +1,1190 @@
+/*
+ * S/390 memory access helper routines
+ *
+ * Copyright (c) 2009 Ulrich Hecht
+ * Copyright (c) 2009 Alexander Graf
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "cpu.h"
+#include "dyngen-exec.h"
+#include "helper.h"
+
+/*****************************************************************************/
+/* Softmmu support */
+#if !defined(CONFIG_USER_ONLY)
+#include "softmmu_exec.h"
+
+#define MMUSUFFIX _mmu
+
+#define SHIFT 0
+#include "softmmu_template.h"
+
+#define SHIFT 1
+#include "softmmu_template.h"
+
+#define SHIFT 2
+#include "softmmu_template.h"
+
+#define SHIFT 3
+#include "softmmu_template.h"
+
+/* try to fill the TLB and return an exception if error. If retaddr is
+ NULL, it means that the function was called in C code (i.e. not
+ from generated code or from helper.c) */
+/* XXX: fix it to restore all registers */
+void tlb_fill(CPUS390XState *env1, target_ulong addr, int is_write, int mmu_idx,
+ uintptr_t retaddr)
+{
+ TranslationBlock *tb;
+ CPUS390XState *saved_env;
+ int ret;
+
+ saved_env = env;
+ env = env1;
+ ret = cpu_s390x_handle_mmu_fault(env, addr, is_write, mmu_idx);
+ if (unlikely(ret != 0)) {
+ if (likely(retaddr)) {
+ /* now we have a real cpu fault */
+ tb = tb_find_pc(retaddr);
+ if (likely(tb)) {
+ /* the PC is inside the translated code. It means that we have
+ a virtual CPU fault */
+ cpu_restore_state(tb, env, retaddr);
+ }
+ }
+ cpu_loop_exit(env);
+ }
+ env = saved_env;
+}
+
+#endif
+
+/* #define DEBUG_HELPER */
+#ifdef DEBUG_HELPER
+#define HELPER_LOG(x...) qemu_log(x)
+#else
+#define HELPER_LOG(x...)
+#endif
+
+#ifndef CONFIG_USER_ONLY
+static void mvc_fast_memset(CPUS390XState *env, uint32_t l, uint64_t dest,
+ uint8_t byte)
+{
+ target_phys_addr_t dest_phys;
+ target_phys_addr_t len = l;
+ void *dest_p;
+ uint64_t asc = env->psw.mask & PSW_MASK_ASC;
+ int flags;
+
+ if (mmu_translate(env, dest, 1, asc, &dest_phys, &flags)) {
+ stb(dest, byte);
+ cpu_abort(env, "should never reach here");
+ }
+ dest_phys |= dest & ~TARGET_PAGE_MASK;
+
+ dest_p = cpu_physical_memory_map(dest_phys, &len, 1);
+
+ memset(dest_p, byte, len);
+
+ cpu_physical_memory_unmap(dest_p, 1, len, len);
+}
+
+static void mvc_fast_memmove(CPUS390XState *env, uint32_t l, uint64_t dest,
+ uint64_t src)
+{
+ target_phys_addr_t dest_phys;
+ target_phys_addr_t src_phys;
+ target_phys_addr_t len = l;
+ void *dest_p;
+ void *src_p;
+ uint64_t asc = env->psw.mask & PSW_MASK_ASC;
+ int flags;
+
+ if (mmu_translate(env, dest, 1, asc, &dest_phys, &flags)) {
+ stb(dest, 0);
+ cpu_abort(env, "should never reach here");
+ }
+ dest_phys |= dest & ~TARGET_PAGE_MASK;
+
+ if (mmu_translate(env, src, 0, asc, &src_phys, &flags)) {
+ ldub(src);
+ cpu_abort(env, "should never reach here");
+ }
+ src_phys |= src & ~TARGET_PAGE_MASK;
+
+ dest_p = cpu_physical_memory_map(dest_phys, &len, 1);
+ src_p = cpu_physical_memory_map(src_phys, &len, 0);
+
+ memmove(dest_p, src_p, len);
+
+ cpu_physical_memory_unmap(dest_p, 1, len, len);
+ cpu_physical_memory_unmap(src_p, 0, len, len);
+}
+#endif
+
+/* and on array */
+uint32_t HELPER(nc)(uint32_t l, uint64_t dest, uint64_t src)
+{
+ int i;
+ unsigned char x;
+ uint32_t cc = 0;
+
+ HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n",
+ __func__, l, dest, src);
+ for (i = 0; i <= l; i++) {
+ x = ldub(dest + i) & ldub(src + i);
+ if (x) {
+ cc = 1;
+ }
+ stb(dest + i, x);
+ }
+ return cc;
+}
+
+/* xor on array */
+uint32_t HELPER(xc)(uint32_t l, uint64_t dest, uint64_t src)
+{
+ int i;
+ unsigned char x;
+ uint32_t cc = 0;
+
+ HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n",
+ __func__, l, dest, src);
+
+#ifndef CONFIG_USER_ONLY
+ /* xor with itself is the same as memset(0) */
+ if ((l > 32) && (src == dest) &&
+ (src & TARGET_PAGE_MASK) == ((src + l) & TARGET_PAGE_MASK)) {
+ mvc_fast_memset(env, l + 1, dest, 0);
+ return 0;
+ }
+#else
+ if (src == dest) {
+ memset(g2h(dest), 0, l + 1);
+ return 0;
+ }
+#endif
+
+ for (i = 0; i <= l; i++) {
+ x = ldub(dest + i) ^ ldub(src + i);
+ if (x) {
+ cc = 1;
+ }
+ stb(dest + i, x);
+ }
+ return cc;
+}
+
+/* or on array */
+uint32_t HELPER(oc)(uint32_t l, uint64_t dest, uint64_t src)
+{
+ int i;
+ unsigned char x;
+ uint32_t cc = 0;
+
+ HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n",
+ __func__, l, dest, src);
+ for (i = 0; i <= l; i++) {
+ x = ldub(dest + i) | ldub(src + i);
+ if (x) {
+ cc = 1;
+ }
+ stb(dest + i, x);
+ }
+ return cc;
+}
+
+/* memmove */
+void HELPER(mvc)(uint32_t l, uint64_t dest, uint64_t src)
+{
+ int i = 0;
+ int x = 0;
+ uint32_t l_64 = (l + 1) / 8;
+
+ HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n",
+ __func__, l, dest, src);
+
+#ifndef CONFIG_USER_ONLY
+ if ((l > 32) &&
+ (src & TARGET_PAGE_MASK) == ((src + l) & TARGET_PAGE_MASK) &&
+ (dest & TARGET_PAGE_MASK) == ((dest + l) & TARGET_PAGE_MASK)) {
+ if (dest == (src + 1)) {
+ mvc_fast_memset(env, l + 1, dest, ldub(src));
+ return;
+ } else if ((src & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) {
+ mvc_fast_memmove(env, l + 1, dest, src);
+ return;
+ }
+ }
+#else
+ if (dest == (src + 1)) {
+ memset(g2h(dest), ldub(src), l + 1);
+ return;
+ } else {
+ memmove(g2h(dest), g2h(src), l + 1);
+ return;
+ }
+#endif
+
+ /* handle the parts that fit into 8-byte loads/stores */
+ if (dest != (src + 1)) {
+ for (i = 0; i < l_64; i++) {
+ stq(dest + x, ldq(src + x));
+ x += 8;
+ }
+ }
+
+ /* slow version crossing pages with byte accesses */
+ for (i = x; i <= l; i++) {
+ stb(dest + i, ldub(src + i));
+ }
+}
+
+/* compare unsigned byte arrays */
+uint32_t HELPER(clc)(uint32_t l, uint64_t s1, uint64_t s2)
+{
+ int i;
+ unsigned char x, y;
+ uint32_t cc;
+
+ HELPER_LOG("%s l %d s1 %" PRIx64 " s2 %" PRIx64 "\n",
+ __func__, l, s1, s2);
+ for (i = 0; i <= l; i++) {
+ x = ldub(s1 + i);
+ y = ldub(s2 + i);
+ HELPER_LOG("%02x (%c)/%02x (%c) ", x, x, y, y);
+ if (x < y) {
+ cc = 1;
+ goto done;
+ } else if (x > y) {
+ cc = 2;
+ goto done;
+ }
+ }
+ cc = 0;
+ done:
+ HELPER_LOG("\n");
+ return cc;
+}
+
+/* compare logical under mask */
+uint32_t HELPER(clm)(uint32_t r1, uint32_t mask, uint64_t addr)
+{
+ uint8_t r, d;
+ uint32_t cc;
+
+ HELPER_LOG("%s: r1 0x%x mask 0x%x addr 0x%" PRIx64 "\n", __func__, r1,
+ mask, addr);
+ cc = 0;
+ while (mask) {
+ if (mask & 8) {
+ d = ldub(addr);
+ r = (r1 & 0xff000000UL) >> 24;
+ HELPER_LOG("mask 0x%x %02x/%02x (0x%" PRIx64 ") ", mask, r, d,
+ addr);
+ if (r < d) {
+ cc = 1;
+ break;
+ } else if (r > d) {
+ cc = 2;
+ break;
+ }
+ addr++;
+ }
+ mask = (mask << 1) & 0xf;
+ r1 <<= 8;
+ }
+ HELPER_LOG("\n");
+ return cc;
+}
+
+/* store character under mask */
+void HELPER(stcm)(uint32_t r1, uint32_t mask, uint64_t addr)
+{
+ uint8_t r;
+
+ HELPER_LOG("%s: r1 0x%x mask 0x%x addr 0x%lx\n", __func__, r1, mask,
+ addr);
+ while (mask) {
+ if (mask & 8) {
+ r = (r1 & 0xff000000UL) >> 24;
+ stb(addr, r);
+ HELPER_LOG("mask 0x%x %02x (0x%lx) ", mask, r, addr);
+ addr++;
+ }
+ mask = (mask << 1) & 0xf;
+ r1 <<= 8;
+ }
+ HELPER_LOG("\n");
+}
+
+static inline uint64_t get_address(int x2, int b2, int d2)
+{
+ uint64_t r = d2;
+
+ if (x2) {
+ r += env->regs[x2];
+ }
+
+ if (b2) {
+ r += env->regs[b2];
+ }
+
+ /* 31-Bit mode */
+ if (!(env->psw.mask & PSW_MASK_64)) {
+ r &= 0x7fffffff;
+ }
+
+ return r;
+}
+
+static inline uint64_t get_address_31fix(int reg)
+{
+ uint64_t r = env->regs[reg];
+
+ /* 31-Bit mode */
+ if (!(env->psw.mask & PSW_MASK_64)) {
+ r &= 0x7fffffff;
+ }
+
+ return r;
+}
+
+/* search string (c is byte to search, r2 is string, r1 end of string) */
+uint32_t HELPER(srst)(uint32_t c, uint32_t r1, uint32_t r2)
+{
+ uint64_t i;
+ uint32_t cc = 2;
+ uint64_t str = get_address_31fix(r2);
+ uint64_t end = get_address_31fix(r1);
+
+ HELPER_LOG("%s: c %d *r1 0x%" PRIx64 " *r2 0x%" PRIx64 "\n", __func__,
+ c, env->regs[r1], env->regs[r2]);
+
+ for (i = str; i != end; i++) {
+ if (ldub(i) == c) {
+ env->regs[r1] = i;
+ cc = 1;
+ break;
+ }
+ }
+
+ return cc;
+}
+
+/* unsigned string compare (c is string terminator) */
+uint32_t HELPER(clst)(uint32_t c, uint32_t r1, uint32_t r2)
+{
+ uint64_t s1 = get_address_31fix(r1);
+ uint64_t s2 = get_address_31fix(r2);
+ uint8_t v1, v2;
+ uint32_t cc;
+
+ c = c & 0xff;
+#ifdef CONFIG_USER_ONLY
+ if (!c) {
+ HELPER_LOG("%s: comparing '%s' and '%s'\n",
+ __func__, (char *)g2h(s1), (char *)g2h(s2));
+ }
+#endif
+ for (;;) {
+ v1 = ldub(s1);
+ v2 = ldub(s2);
+ if ((v1 == c || v2 == c) || (v1 != v2)) {
+ break;
+ }
+ s1++;
+ s2++;
+ }
+
+ if (v1 == v2) {
+ cc = 0;
+ } else {
+ cc = (v1 < v2) ? 1 : 2;
+ /* FIXME: 31-bit mode! */
+ env->regs[r1] = s1;
+ env->regs[r2] = s2;
+ }
+ return cc;
+}
+
+/* move page */
+void HELPER(mvpg)(uint64_t r0, uint64_t r1, uint64_t r2)
+{
+ /* XXX missing r0 handling */
+#ifdef CONFIG_USER_ONLY
+ int i;
+
+ for (i = 0; i < TARGET_PAGE_SIZE; i++) {
+ stb(r1 + i, ldub(r2 + i));
+ }
+#else
+ mvc_fast_memmove(env, TARGET_PAGE_SIZE, r1, r2);
+#endif
+}
+
+/* string copy (c is string terminator) */
+void HELPER(mvst)(uint32_t c, uint32_t r1, uint32_t r2)
+{
+ uint64_t dest = get_address_31fix(r1);
+ uint64_t src = get_address_31fix(r2);
+ uint8_t v;
+
+ c = c & 0xff;
+#ifdef CONFIG_USER_ONLY
+ if (!c) {
+ HELPER_LOG("%s: copy '%s' to 0x%lx\n", __func__, (char *)g2h(src),
+ dest);
+ }
+#endif
+ for (;;) {
+ v = ldub(src);
+ stb(dest, v);
+ if (v == c) {
+ break;
+ }
+ src++;
+ dest++;
+ }
+ env->regs[r1] = dest; /* FIXME: 31-bit mode! */
+}
+
+/* compare and swap 64-bit */
+uint32_t HELPER(csg)(uint32_t r1, uint64_t a2, uint32_t r3)
+{
+ /* FIXME: locking? */
+ uint32_t cc;
+ uint64_t v2 = ldq(a2);
+
+ if (env->regs[r1] == v2) {
+ cc = 0;
+ stq(a2, env->regs[r3]);
+ } else {
+ cc = 1;
+ env->regs[r1] = v2;
+ }
+ return cc;
+}
+
+/* compare double and swap 64-bit */
+uint32_t HELPER(cdsg)(uint32_t r1, uint64_t a2, uint32_t r3)
+{
+ /* FIXME: locking? */
+ uint32_t cc;
+ uint64_t v2_hi = ldq(a2);
+ uint64_t v2_lo = ldq(a2 + 8);
+ uint64_t v1_hi = env->regs[r1];
+ uint64_t v1_lo = env->regs[r1 + 1];
+
+ if ((v1_hi == v2_hi) && (v1_lo == v2_lo)) {
+ cc = 0;
+ stq(a2, env->regs[r3]);
+ stq(a2 + 8, env->regs[r3 + 1]);
+ } else {
+ cc = 1;
+ env->regs[r1] = v2_hi;
+ env->regs[r1 + 1] = v2_lo;
+ }
+
+ return cc;
+}
+
+/* compare and swap 32-bit */
+uint32_t HELPER(cs)(uint32_t r1, uint64_t a2, uint32_t r3)
+{
+ /* FIXME: locking? */
+ uint32_t cc;
+ uint32_t v2 = ldl(a2);
+
+ HELPER_LOG("%s: r1 %d a2 0x%lx r3 %d\n", __func__, r1, a2, r3);
+ if (((uint32_t)env->regs[r1]) == v2) {
+ cc = 0;
+ stl(a2, (uint32_t)env->regs[r3]);
+ } else {
+ cc = 1;
+ env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | v2;
+ }
+ return cc;
+}
+
+static uint32_t helper_icm(uint32_t r1, uint64_t address, uint32_t mask)
+{
+ int pos = 24; /* top of the lower half of r1 */
+ uint64_t rmask = 0xff000000ULL;
+ uint8_t val = 0;
+ int ccd = 0;
+ uint32_t cc = 0;
+
+ while (mask) {
+ if (mask & 8) {
+ env->regs[r1] &= ~rmask;
+ val = ldub(address);
+ if ((val & 0x80) && !ccd) {
+ cc = 1;
+ }
+ ccd = 1;
+ if (val && cc == 0) {
+ cc = 2;
+ }
+ env->regs[r1] |= (uint64_t)val << pos;
+ address++;
+ }
+ mask = (mask << 1) & 0xf;
+ pos -= 8;
+ rmask >>= 8;
+ }
+
+ return cc;
+}
+
+/* execute instruction
+ this instruction executes an insn modified with the contents of r1
+ it does not change the executed instruction in memory
+ it does not change the program counter
+ in other words: tricky...
+ currently implemented by interpreting the cases it is most commonly used in
+*/
+uint32_t HELPER(ex)(uint32_t cc, uint64_t v1, uint64_t addr, uint64_t ret)
+{
+ uint16_t insn = lduw_code(addr);
+
+ HELPER_LOG("%s: v1 0x%lx addr 0x%lx insn 0x%x\n", __func__, v1, addr,
+ insn);
+ if ((insn & 0xf0ff) == 0xd000) {
+ uint32_t l, insn2, b1, b2, d1, d2;
+
+ l = v1 & 0xff;
+ insn2 = ldl_code(addr + 2);
+ b1 = (insn2 >> 28) & 0xf;
+ b2 = (insn2 >> 12) & 0xf;
+ d1 = (insn2 >> 16) & 0xfff;
+ d2 = insn2 & 0xfff;
+ switch (insn & 0xf00) {
+ case 0x200:
+ helper_mvc(l, get_address(0, b1, d1), get_address(0, b2, d2));
+ break;
+ case 0x500:
+ cc = helper_clc(l, get_address(0, b1, d1), get_address(0, b2, d2));
+ break;
+ case 0x700:
+ cc = helper_xc(l, get_address(0, b1, d1), get_address(0, b2, d2));
+ break;
+ case 0xc00:
+ helper_tr(l, get_address(0, b1, d1), get_address(0, b2, d2));
+ break;
+ default:
+ goto abort;
+ break;
+ }
+ } else if ((insn & 0xff00) == 0x0a00) {
+ /* supervisor call */
+ HELPER_LOG("%s: svc %ld via execute\n", __func__, (insn | v1) & 0xff);
+ env->psw.addr = ret - 4;
+ env->int_svc_code = (insn | v1) & 0xff;
+ env->int_svc_ilc = 4;
+ helper_exception(EXCP_SVC);
+ } else if ((insn & 0xff00) == 0xbf00) {
+ uint32_t insn2, r1, r3, b2, d2;
+
+ insn2 = ldl_code(addr + 2);
+ r1 = (insn2 >> 20) & 0xf;
+ r3 = (insn2 >> 16) & 0xf;
+ b2 = (insn2 >> 12) & 0xf;
+ d2 = insn2 & 0xfff;
+ cc = helper_icm(r1, get_address(0, b2, d2), r3);
+ } else {
+ abort:
+ cpu_abort(env, "EXECUTE on instruction prefix 0x%x not implemented\n",
+ insn);
+ }
+ return cc;
+}
+
+/* store character under mask high operates on the upper half of r1 */
+void HELPER(stcmh)(uint32_t r1, uint64_t address, uint32_t mask)
+{
+ int pos = 56; /* top of the upper half of r1 */
+
+ while (mask) {
+ if (mask & 8) {
+ stb(address, (env->regs[r1] >> pos) & 0xff);
+ address++;
+ }
+ mask = (mask << 1) & 0xf;
+ pos -= 8;
+ }
+}
+
+/* insert character under mask high; same as icm, but operates on the
+ upper half of r1 */
+uint32_t HELPER(icmh)(uint32_t r1, uint64_t address, uint32_t mask)
+{
+ int pos = 56; /* top of the upper half of r1 */
+ uint64_t rmask = 0xff00000000000000ULL;
+ uint8_t val = 0;
+ int ccd = 0;
+ uint32_t cc = 0;
+
+ while (mask) {
+ if (mask & 8) {
+ env->regs[r1] &= ~rmask;
+ val = ldub(address);
+ if ((val & 0x80) && !ccd) {
+ cc = 1;
+ }
+ ccd = 1;
+ if (val && cc == 0) {
+ cc = 2;
+ }
+ env->regs[r1] |= (uint64_t)val << pos;
+ address++;
+ }
+ mask = (mask << 1) & 0xf;
+ pos -= 8;
+ rmask >>= 8;
+ }
+
+ return cc;
+}
+
+/* load access registers r1 to r3 from memory at a2 */
+void HELPER(lam)(uint32_t r1, uint64_t a2, uint32_t r3)
+{
+ int i;
+
+ for (i = r1;; i = (i + 1) % 16) {
+ env->aregs[i] = ldl(a2);
+ a2 += 4;
+
+ if (i == r3) {
+ break;
+ }
+ }
+}
+
+/* store access registers r1 to r3 in memory at a2 */
+void HELPER(stam)(uint32_t r1, uint64_t a2, uint32_t r3)
+{
+ int i;
+
+ for (i = r1;; i = (i + 1) % 16) {
+ stl(a2, env->aregs[i]);
+ a2 += 4;
+
+ if (i == r3) {
+ break;
+ }
+ }
+}
+
+/* move long */
+uint32_t HELPER(mvcl)(uint32_t r1, uint32_t r2)
+{
+ uint64_t destlen = env->regs[r1 + 1] & 0xffffff;
+ uint64_t dest = get_address_31fix(r1);
+ uint64_t srclen = env->regs[r2 + 1] & 0xffffff;
+ uint64_t src = get_address_31fix(r2);
+ uint8_t pad = src >> 24;
+ uint8_t v;
+ uint32_t cc;
+
+ if (destlen == srclen) {
+ cc = 0;
+ } else if (destlen < srclen) {
+ cc = 1;
+ } else {
+ cc = 2;
+ }
+
+ if (srclen > destlen) {
+ srclen = destlen;
+ }
+
+ for (; destlen && srclen; src++, dest++, destlen--, srclen--) {
+ v = ldub(src);
+ stb(dest, v);
+ }
+
+ for (; destlen; dest++, destlen--) {
+ stb(dest, pad);
+ }
+
+ env->regs[r1 + 1] = destlen;
+ /* can't use srclen here, we trunc'ed it */
+ env->regs[r2 + 1] -= src - env->regs[r2];
+ env->regs[r1] = dest;
+ env->regs[r2] = src;
+
+ return cc;
+}
+
+/* move long extended another memcopy insn with more bells and whistles */
+uint32_t HELPER(mvcle)(uint32_t r1, uint64_t a2, uint32_t r3)
+{
+ uint64_t destlen = env->regs[r1 + 1];
+ uint64_t dest = env->regs[r1];
+ uint64_t srclen = env->regs[r3 + 1];
+ uint64_t src = env->regs[r3];
+ uint8_t pad = a2 & 0xff;
+ uint8_t v;
+ uint32_t cc;
+
+ if (!(env->psw.mask & PSW_MASK_64)) {
+ destlen = (uint32_t)destlen;
+ srclen = (uint32_t)srclen;
+ dest &= 0x7fffffff;
+ src &= 0x7fffffff;
+ }
+
+ if (destlen == srclen) {
+ cc = 0;
+ } else if (destlen < srclen) {
+ cc = 1;
+ } else {
+ cc = 2;
+ }
+
+ if (srclen > destlen) {
+ srclen = destlen;
+ }
+
+ for (; destlen && srclen; src++, dest++, destlen--, srclen--) {
+ v = ldub(src);
+ stb(dest, v);
+ }
+
+ for (; destlen; dest++, destlen--) {
+ stb(dest, pad);
+ }
+
+ env->regs[r1 + 1] = destlen;
+ /* can't use srclen here, we trunc'ed it */
+ /* FIXME: 31-bit mode! */
+ env->regs[r3 + 1] -= src - env->regs[r3];
+ env->regs[r1] = dest;
+ env->regs[r3] = src;
+
+ return cc;
+}
+
+/* compare logical long extended memcompare insn with padding */
+uint32_t HELPER(clcle)(uint32_t r1, uint64_t a2, uint32_t r3)
+{
+ uint64_t destlen = env->regs[r1 + 1];
+ uint64_t dest = get_address_31fix(r1);
+ uint64_t srclen = env->regs[r3 + 1];
+ uint64_t src = get_address_31fix(r3);
+ uint8_t pad = a2 & 0xff;
+ uint8_t v1 = 0, v2 = 0;
+ uint32_t cc = 0;
+
+ if (!(destlen || srclen)) {
+ return cc;
+ }
+
+ if (srclen > destlen) {
+ srclen = destlen;
+ }
+
+ for (; destlen || srclen; src++, dest++, destlen--, srclen--) {
+ v1 = srclen ? ldub(src) : pad;
+ v2 = destlen ? ldub(dest) : pad;
+ if (v1 != v2) {
+ cc = (v1 < v2) ? 1 : 2;
+ break;
+ }
+ }
+
+ env->regs[r1 + 1] = destlen;
+ /* can't use srclen here, we trunc'ed it */
+ env->regs[r3 + 1] -= src - env->regs[r3];
+ env->regs[r1] = dest;
+ env->regs[r3] = src;
+
+ return cc;
+}
+
+/* checksum */
+void HELPER(cksm)(uint32_t r1, uint32_t r2)
+{
+ uint64_t src = get_address_31fix(r2);
+ uint64_t src_len = env->regs[(r2 + 1) & 15];
+ uint64_t cksm = (uint32_t)env->regs[r1];
+
+ while (src_len >= 4) {
+ cksm += ldl(src);
+
+ /* move to next word */
+ src_len -= 4;
+ src += 4;
+ }
+
+ switch (src_len) {
+ case 0:
+ break;
+ case 1:
+ cksm += ldub(src) << 24;
+ break;
+ case 2:
+ cksm += lduw(src) << 16;
+ break;
+ case 3:
+ cksm += lduw(src) << 16;
+ cksm += ldub(src + 2) << 8;
+ break;
+ }
+
+ /* indicate we've processed everything */
+ env->regs[r2] = src + src_len;
+ env->regs[(r2 + 1) & 15] = 0;
+
+ /* store result */
+ env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) |
+ ((uint32_t)cksm + (cksm >> 32));
+}
+
+void HELPER(unpk)(uint32_t len, uint64_t dest, uint64_t src)
+{
+ int len_dest = len >> 4;
+ int len_src = len & 0xf;
+ uint8_t b;
+ int second_nibble = 0;
+
+ dest += len_dest;
+ src += len_src;
+
+ /* last byte is special, it only flips the nibbles */
+ b = ldub(src);
+ stb(dest, (b << 4) | (b >> 4));
+ src--;
+ len_src--;
+
+ /* now pad every nibble with 0xf0 */
+
+ while (len_dest > 0) {
+ uint8_t cur_byte = 0;
+
+ if (len_src > 0) {
+ cur_byte = ldub(src);
+ }
+
+ len_dest--;
+ dest--;
+
+ /* only advance one nibble at a time */
+ if (second_nibble) {
+ cur_byte >>= 4;
+ len_src--;
+ src--;
+ }
+ second_nibble = !second_nibble;
+
+ /* digit */
+ cur_byte = (cur_byte & 0xf);
+ /* zone bits */
+ cur_byte |= 0xf0;
+
+ stb(dest, cur_byte);
+ }
+}
+
+void HELPER(tr)(uint32_t len, uint64_t array, uint64_t trans)
+{
+ int i;
+
+ for (i = 0; i <= len; i++) {
+ uint8_t byte = ldub(array + i);
+ uint8_t new_byte = ldub(trans + byte);
+
+ stb(array + i, new_byte);
+ }
+}
+
+#if !defined(CONFIG_USER_ONLY)
+void HELPER(lctlg)(uint32_t r1, uint64_t a2, uint32_t r3)
+{
+ int i;
+ uint64_t src = a2;
+
+ for (i = r1;; i = (i + 1) % 16) {
+ env->cregs[i] = ldq(src);
+ HELPER_LOG("load ctl %d from 0x%" PRIx64 " == 0x%" PRIx64 "\n",
+ i, src, env->cregs[i]);
+ src += sizeof(uint64_t);
+
+ if (i == r3) {
+ break;
+ }
+ }
+
+ tlb_flush(env, 1);
+}
+
+void HELPER(lctl)(uint32_t r1, uint64_t a2, uint32_t r3)
+{
+ int i;
+ uint64_t src = a2;
+
+ for (i = r1;; i = (i + 1) % 16) {
+ env->cregs[i] = (env->cregs[i] & 0xFFFFFFFF00000000ULL) | ldl(src);
+ src += sizeof(uint32_t);
+
+ if (i == r3) {
+ break;
+ }
+ }
+
+ tlb_flush(env, 1);
+}
+
+void HELPER(stctg)(uint32_t r1, uint64_t a2, uint32_t r3)
+{
+ int i;
+ uint64_t dest = a2;
+
+ for (i = r1;; i = (i + 1) % 16) {
+ stq(dest, env->cregs[i]);
+ dest += sizeof(uint64_t);
+
+ if (i == r3) {
+ break;
+ }
+ }
+}
+
+void HELPER(stctl)(uint32_t r1, uint64_t a2, uint32_t r3)
+{
+ int i;
+ uint64_t dest = a2;
+
+ for (i = r1;; i = (i + 1) % 16) {
+ stl(dest, env->cregs[i]);
+ dest += sizeof(uint32_t);
+
+ if (i == r3) {
+ break;
+ }
+ }
+}
+
+uint32_t HELPER(tprot)(uint64_t a1, uint64_t a2)
+{
+ /* XXX implement */
+
+ return 0;
+}
+
+/* insert storage key extended */
+uint64_t HELPER(iske)(uint64_t r2)
+{
+ uint64_t addr = get_address(0, 0, r2);
+
+ if (addr > ram_size) {
+ return 0;
+ }
+
+ return env->storage_keys[addr / TARGET_PAGE_SIZE];
+}
+
+/* set storage key extended */
+void HELPER(sske)(uint32_t r1, uint64_t r2)
+{
+ uint64_t addr = get_address(0, 0, r2);
+
+ if (addr > ram_size) {
+ return;
+ }
+
+ env->storage_keys[addr / TARGET_PAGE_SIZE] = r1;
+}
+
+/* reset reference bit extended */
+uint32_t HELPER(rrbe)(uint32_t r1, uint64_t r2)
+{
+ uint8_t re;
+ uint8_t key;
+
+ if (r2 > ram_size) {
+ return 0;
+ }
+
+ key = env->storage_keys[r2 / TARGET_PAGE_SIZE];
+ re = key & (SK_R | SK_C);
+ env->storage_keys[r2 / TARGET_PAGE_SIZE] = (key & ~SK_R);
+
+ /*
+ * cc
+ *
+ * 0 Reference bit zero; change bit zero
+ * 1 Reference bit zero; change bit one
+ * 2 Reference bit one; change bit zero
+ * 3 Reference bit one; change bit one
+ */
+
+ return re >> 1;
+}
+
+/* compare and swap and purge */
+uint32_t HELPER(csp)(uint32_t r1, uint32_t r2)
+{
+ uint32_t cc;
+ uint32_t o1 = env->regs[r1];
+ uint64_t a2 = get_address_31fix(r2) & ~3ULL;
+ uint32_t o2 = ldl(a2);
+
+ if (o1 == o2) {
+ stl(a2, env->regs[(r1 + 1) & 15]);
+ if (env->regs[r2] & 0x3) {
+ /* flush TLB / ALB */
+ tlb_flush(env, 1);
+ }
+ cc = 0;
+ } else {
+ env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | o2;
+ cc = 1;
+ }
+
+ return cc;
+}
+
+static uint32_t mvc_asc(int64_t l, uint64_t a1, uint64_t mode1, uint64_t a2,
+ uint64_t mode2)
+{
+ target_ulong src, dest;
+ int flags, cc = 0, i;
+
+ if (!l) {
+ return 0;
+ } else if (l > 256) {
+ /* max 256 */
+ l = 256;
+ cc = 3;
+ }
+
+ if (mmu_translate(env, a1 & TARGET_PAGE_MASK, 1, mode1, &dest, &flags)) {
+ cpu_loop_exit(env);
+ }
+ dest |= a1 & ~TARGET_PAGE_MASK;
+
+ if (mmu_translate(env, a2 & TARGET_PAGE_MASK, 0, mode2, &src, &flags)) {
+ cpu_loop_exit(env);
+ }
+ src |= a2 & ~TARGET_PAGE_MASK;
+
+ /* XXX replace w/ memcpy */
+ for (i = 0; i < l; i++) {
+ /* XXX be more clever */
+ if ((((dest + i) & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) ||
+ (((src + i) & TARGET_PAGE_MASK) != (src & TARGET_PAGE_MASK))) {
+ mvc_asc(l - i, a1 + i, mode1, a2 + i, mode2);
+ break;
+ }
+ stb_phys(dest + i, ldub_phys(src + i));
+ }
+
+ return cc;
+}
+
+uint32_t HELPER(mvcs)(uint64_t l, uint64_t a1, uint64_t a2)
+{
+ HELPER_LOG("%s: %16" PRIx64 " %16" PRIx64 " %16" PRIx64 "\n",
+ __func__, l, a1, a2);
+
+ return mvc_asc(l, a1, PSW_ASC_SECONDARY, a2, PSW_ASC_PRIMARY);
+}
+
+uint32_t HELPER(mvcp)(uint64_t l, uint64_t a1, uint64_t a2)
+{
+ HELPER_LOG("%s: %16" PRIx64 " %16" PRIx64 " %16" PRIx64 "\n",
+ __func__, l, a1, a2);
+
+ return mvc_asc(l, a1, PSW_ASC_PRIMARY, a2, PSW_ASC_SECONDARY);
+}
+
+/* invalidate pte */
+void HELPER(ipte)(uint64_t pte_addr, uint64_t vaddr)
+{
+ uint64_t page = vaddr & TARGET_PAGE_MASK;
+ uint64_t pte = 0;
+
+ /* XXX broadcast to other CPUs */
+
+ /* XXX Linux is nice enough to give us the exact pte address.
+ According to spec we'd have to find it out ourselves */
+ /* XXX Linux is fine with overwriting the pte, the spec requires
+ us to only set the invalid bit */
+ stq_phys(pte_addr, pte | _PAGE_INVALID);
+
+ /* XXX we exploit the fact that Linux passes the exact virtual
+ address here - it's not obliged to! */
+ tlb_flush_page(env, page);
+
+ /* XXX 31-bit hack */
+ if (page & 0x80000000) {
+ tlb_flush_page(env, page & ~0x80000000);
+ } else {
+ tlb_flush_page(env, page | 0x80000000);
+ }
+}
+
+/* flush local tlb */
+void HELPER(ptlb)(void)
+{
+ tlb_flush(env, 1);
+}
+
+/* store using real address */
+void HELPER(stura)(uint64_t addr, uint32_t v1)
+{
+ stw_phys(get_address(0, 0, addr), v1);
+}
+
+/* load real address */
+uint32_t HELPER(lra)(uint64_t addr, uint32_t r1)
+{
+ uint32_t cc = 0;
+ int old_exc = env->exception_index;
+ uint64_t asc = env->psw.mask & PSW_MASK_ASC;
+ uint64_t ret;
+ int flags;
+
+ /* XXX incomplete - has more corner cases */
+ if (!(env->psw.mask & PSW_MASK_64) && (addr >> 32)) {
+ program_interrupt(env, PGM_SPECIAL_OP, 2);
+ }
+
+ env->exception_index = old_exc;
+ if (mmu_translate(env, addr, 0, asc, &ret, &flags)) {
+ cc = 3;
+ }
+ if (env->exception_index == EXCP_PGM) {
+ ret = env->int_pgm_code | 0x80000000;
+ } else {
+ ret |= addr & ~TARGET_PAGE_MASK;
+ }
+ env->exception_index = old_exc;
+
+ if (!(env->psw.mask & PSW_MASK_64)) {
+ env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) |
+ (ret & 0xffffffffULL);
+ } else {
+ env->regs[r1] = ret;
+ }
+
+ return cc;
+}
+
+#endif
diff --git a/target-s390x/op_helper.c b/target-s390x/op_helper.c
index 3b8b997abf..bb8dbf55d0 100644
--- a/target-s390x/op_helper.c
+++ b/target-s390x/op_helper.c
@@ -32,57 +32,8 @@
#endif
#if !defined(CONFIG_USER_ONLY)
-#include "sysemu.h"
-#endif
-
-/*****************************************************************************/
-/* Softmmu support */
-#if !defined(CONFIG_USER_ONLY)
#include "softmmu_exec.h"
-
-#define MMUSUFFIX _mmu
-
-#define SHIFT 0
-#include "softmmu_template.h"
-
-#define SHIFT 1
-#include "softmmu_template.h"
-
-#define SHIFT 2
-#include "softmmu_template.h"
-
-#define SHIFT 3
-#include "softmmu_template.h"
-
-/* try to fill the TLB and return an exception if error. If retaddr is
- NULL, it means that the function was called in C code (i.e. not
- from generated code or from helper.c) */
-/* XXX: fix it to restore all registers */
-void tlb_fill(CPUS390XState *env1, target_ulong addr, int is_write, int mmu_idx,
- uintptr_t retaddr)
-{
- TranslationBlock *tb;
- CPUS390XState *saved_env;
- int ret;
-
- saved_env = env;
- env = env1;
- ret = cpu_s390x_handle_mmu_fault(env, addr, is_write, mmu_idx);
- if (unlikely(ret != 0)) {
- if (likely(retaddr)) {
- /* now we have a real cpu fault */
- tb = tb_find_pc(retaddr);
- if (likely(tb)) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, retaddr);
- }
- }
- cpu_loop_exit(env);
- }
- env = saved_env;
-}
-
+#include "sysemu.h"
#endif
/* #define DEBUG_HELPER */
@@ -101,840 +52,6 @@ void HELPER(exception)(uint32_t excp)
}
#ifndef CONFIG_USER_ONLY
-static void mvc_fast_memset(CPUS390XState *env, uint32_t l, uint64_t dest,
- uint8_t byte)
-{
- target_phys_addr_t dest_phys;
- target_phys_addr_t len = l;
- void *dest_p;
- uint64_t asc = env->psw.mask & PSW_MASK_ASC;
- int flags;
-
- if (mmu_translate(env, dest, 1, asc, &dest_phys, &flags)) {
- stb(dest, byte);
- cpu_abort(env, "should never reach here");
- }
- dest_phys |= dest & ~TARGET_PAGE_MASK;
-
- dest_p = cpu_physical_memory_map(dest_phys, &len, 1);
-
- memset(dest_p, byte, len);
-
- cpu_physical_memory_unmap(dest_p, 1, len, len);
-}
-
-static void mvc_fast_memmove(CPUS390XState *env, uint32_t l, uint64_t dest,
- uint64_t src)
-{
- target_phys_addr_t dest_phys;
- target_phys_addr_t src_phys;
- target_phys_addr_t len = l;
- void *dest_p;
- void *src_p;
- uint64_t asc = env->psw.mask & PSW_MASK_ASC;
- int flags;
-
- if (mmu_translate(env, dest, 1, asc, &dest_phys, &flags)) {
- stb(dest, 0);
- cpu_abort(env, "should never reach here");
- }
- dest_phys |= dest & ~TARGET_PAGE_MASK;
-
- if (mmu_translate(env, src, 0, asc, &src_phys, &flags)) {
- ldub(src);
- cpu_abort(env, "should never reach here");
- }
- src_phys |= src & ~TARGET_PAGE_MASK;
-
- dest_p = cpu_physical_memory_map(dest_phys, &len, 1);
- src_p = cpu_physical_memory_map(src_phys, &len, 0);
-
- memmove(dest_p, src_p, len);
-
- cpu_physical_memory_unmap(dest_p, 1, len, len);
- cpu_physical_memory_unmap(src_p, 0, len, len);
-}
-#endif
-
-/* and on array */
-uint32_t HELPER(nc)(uint32_t l, uint64_t dest, uint64_t src)
-{
- int i;
- unsigned char x;
- uint32_t cc = 0;
-
- HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n",
- __func__, l, dest, src);
- for (i = 0; i <= l; i++) {
- x = ldub(dest + i) & ldub(src + i);
- if (x) {
- cc = 1;
- }
- stb(dest + i, x);
- }
- return cc;
-}
-
-/* xor on array */
-uint32_t HELPER(xc)(uint32_t l, uint64_t dest, uint64_t src)
-{
- int i;
- unsigned char x;
- uint32_t cc = 0;
-
- HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n",
- __func__, l, dest, src);
-
-#ifndef CONFIG_USER_ONLY
- /* xor with itself is the same as memset(0) */
- if ((l > 32) && (src == dest) &&
- (src & TARGET_PAGE_MASK) == ((src + l) & TARGET_PAGE_MASK)) {
- mvc_fast_memset(env, l + 1, dest, 0);
- return 0;
- }
-#else
- if (src == dest) {
- memset(g2h(dest), 0, l + 1);
- return 0;
- }
-#endif
-
- for (i = 0; i <= l; i++) {
- x = ldub(dest + i) ^ ldub(src + i);
- if (x) {
- cc = 1;
- }
- stb(dest + i, x);
- }
- return cc;
-}
-
-/* or on array */
-uint32_t HELPER(oc)(uint32_t l, uint64_t dest, uint64_t src)
-{
- int i;
- unsigned char x;
- uint32_t cc = 0;
-
- HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n",
- __func__, l, dest, src);
- for (i = 0; i <= l; i++) {
- x = ldub(dest + i) | ldub(src + i);
- if (x) {
- cc = 1;
- }
- stb(dest + i, x);
- }
- return cc;
-}
-
-/* memmove */
-void HELPER(mvc)(uint32_t l, uint64_t dest, uint64_t src)
-{
- int i = 0;
- int x = 0;
- uint32_t l_64 = (l + 1) / 8;
-
- HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n",
- __func__, l, dest, src);
-
-#ifndef CONFIG_USER_ONLY
- if ((l > 32) &&
- (src & TARGET_PAGE_MASK) == ((src + l) & TARGET_PAGE_MASK) &&
- (dest & TARGET_PAGE_MASK) == ((dest + l) & TARGET_PAGE_MASK)) {
- if (dest == (src + 1)) {
- mvc_fast_memset(env, l + 1, dest, ldub(src));
- return;
- } else if ((src & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) {
- mvc_fast_memmove(env, l + 1, dest, src);
- return;
- }
- }
-#else
- if (dest == (src + 1)) {
- memset(g2h(dest), ldub(src), l + 1);
- return;
- } else {
- memmove(g2h(dest), g2h(src), l + 1);
- return;
- }
-#endif
-
- /* handle the parts that fit into 8-byte loads/stores */
- if (dest != (src + 1)) {
- for (i = 0; i < l_64; i++) {
- stq(dest + x, ldq(src + x));
- x += 8;
- }
- }
-
- /* slow version crossing pages with byte accesses */
- for (i = x; i <= l; i++) {
- stb(dest + i, ldub(src + i));
- }
-}
-
-/* compare unsigned byte arrays */
-uint32_t HELPER(clc)(uint32_t l, uint64_t s1, uint64_t s2)
-{
- int i;
- unsigned char x, y;
- uint32_t cc;
-
- HELPER_LOG("%s l %d s1 %" PRIx64 " s2 %" PRIx64 "\n",
- __func__, l, s1, s2);
- for (i = 0; i <= l; i++) {
- x = ldub(s1 + i);
- y = ldub(s2 + i);
- HELPER_LOG("%02x (%c)/%02x (%c) ", x, x, y, y);
- if (x < y) {
- cc = 1;
- goto done;
- } else if (x > y) {
- cc = 2;
- goto done;
- }
- }
- cc = 0;
- done:
- HELPER_LOG("\n");
- return cc;
-}
-
-/* compare logical under mask */
-uint32_t HELPER(clm)(uint32_t r1, uint32_t mask, uint64_t addr)
-{
- uint8_t r, d;
- uint32_t cc;
-
- HELPER_LOG("%s: r1 0x%x mask 0x%x addr 0x%" PRIx64 "\n", __func__, r1,
- mask, addr);
- cc = 0;
- while (mask) {
- if (mask & 8) {
- d = ldub(addr);
- r = (r1 & 0xff000000UL) >> 24;
- HELPER_LOG("mask 0x%x %02x/%02x (0x%" PRIx64 ") ", mask, r, d,
- addr);
- if (r < d) {
- cc = 1;
- break;
- } else if (r > d) {
- cc = 2;
- break;
- }
- addr++;
- }
- mask = (mask << 1) & 0xf;
- r1 <<= 8;
- }
- HELPER_LOG("\n");
- return cc;
-}
-
-/* store character under mask */
-void HELPER(stcm)(uint32_t r1, uint32_t mask, uint64_t addr)
-{
- uint8_t r;
-
- HELPER_LOG("%s: r1 0x%x mask 0x%x addr 0x%lx\n", __func__, r1, mask,
- addr);
- while (mask) {
- if (mask & 8) {
- r = (r1 & 0xff000000UL) >> 24;
- stb(addr, r);
- HELPER_LOG("mask 0x%x %02x (0x%lx) ", mask, r, addr);
- addr++;
- }
- mask = (mask << 1) & 0xf;
- r1 <<= 8;
- }
- HELPER_LOG("\n");
-}
-
-static inline uint64_t get_address(int x2, int b2, int d2)
-{
- uint64_t r = d2;
-
- if (x2) {
- r += env->regs[x2];
- }
-
- if (b2) {
- r += env->regs[b2];
- }
-
- /* 31-Bit mode */
- if (!(env->psw.mask & PSW_MASK_64)) {
- r &= 0x7fffffff;
- }
-
- return r;
-}
-
-static inline uint64_t get_address_31fix(int reg)
-{
- uint64_t r = env->regs[reg];
-
- /* 31-Bit mode */
- if (!(env->psw.mask & PSW_MASK_64)) {
- r &= 0x7fffffff;
- }
-
- return r;
-}
-
-/* search string (c is byte to search, r2 is string, r1 end of string) */
-uint32_t HELPER(srst)(uint32_t c, uint32_t r1, uint32_t r2)
-{
- uint64_t i;
- uint32_t cc = 2;
- uint64_t str = get_address_31fix(r2);
- uint64_t end = get_address_31fix(r1);
-
- HELPER_LOG("%s: c %d *r1 0x%" PRIx64 " *r2 0x%" PRIx64 "\n", __func__,
- c, env->regs[r1], env->regs[r2]);
-
- for (i = str; i != end; i++) {
- if (ldub(i) == c) {
- env->regs[r1] = i;
- cc = 1;
- break;
- }
- }
-
- return cc;
-}
-
-/* unsigned string compare (c is string terminator) */
-uint32_t HELPER(clst)(uint32_t c, uint32_t r1, uint32_t r2)
-{
- uint64_t s1 = get_address_31fix(r1);
- uint64_t s2 = get_address_31fix(r2);
- uint8_t v1, v2;
- uint32_t cc;
-
- c = c & 0xff;
-#ifdef CONFIG_USER_ONLY
- if (!c) {
- HELPER_LOG("%s: comparing '%s' and '%s'\n",
- __func__, (char *)g2h(s1), (char *)g2h(s2));
- }
-#endif
- for (;;) {
- v1 = ldub(s1);
- v2 = ldub(s2);
- if ((v1 == c || v2 == c) || (v1 != v2)) {
- break;
- }
- s1++;
- s2++;
- }
-
- if (v1 == v2) {
- cc = 0;
- } else {
- cc = (v1 < v2) ? 1 : 2;
- /* FIXME: 31-bit mode! */
- env->regs[r1] = s1;
- env->regs[r2] = s2;
- }
- return cc;
-}
-
-/* move page */
-void HELPER(mvpg)(uint64_t r0, uint64_t r1, uint64_t r2)
-{
- /* XXX missing r0 handling */
-#ifdef CONFIG_USER_ONLY
- int i;
-
- for (i = 0; i < TARGET_PAGE_SIZE; i++) {
- stb(r1 + i, ldub(r2 + i));
- }
-#else
- mvc_fast_memmove(env, TARGET_PAGE_SIZE, r1, r2);
-#endif
-}
-
-/* string copy (c is string terminator) */
-void HELPER(mvst)(uint32_t c, uint32_t r1, uint32_t r2)
-{
- uint64_t dest = get_address_31fix(r1);
- uint64_t src = get_address_31fix(r2);
- uint8_t v;
-
- c = c & 0xff;
-#ifdef CONFIG_USER_ONLY
- if (!c) {
- HELPER_LOG("%s: copy '%s' to 0x%lx\n", __func__, (char *)g2h(src),
- dest);
- }
-#endif
- for (;;) {
- v = ldub(src);
- stb(dest, v);
- if (v == c) {
- break;
- }
- src++;
- dest++;
- }
- env->regs[r1] = dest; /* FIXME: 31-bit mode! */
-}
-
-/* compare and swap 64-bit */
-uint32_t HELPER(csg)(uint32_t r1, uint64_t a2, uint32_t r3)
-{
- /* FIXME: locking? */
- uint32_t cc;
- uint64_t v2 = ldq(a2);
-
- if (env->regs[r1] == v2) {
- cc = 0;
- stq(a2, env->regs[r3]);
- } else {
- cc = 1;
- env->regs[r1] = v2;
- }
- return cc;
-}
-
-/* compare double and swap 64-bit */
-uint32_t HELPER(cdsg)(uint32_t r1, uint64_t a2, uint32_t r3)
-{
- /* FIXME: locking? */
- uint32_t cc;
- uint64_t v2_hi = ldq(a2);
- uint64_t v2_lo = ldq(a2 + 8);
- uint64_t v1_hi = env->regs[r1];
- uint64_t v1_lo = env->regs[r1 + 1];
-
- if ((v1_hi == v2_hi) && (v1_lo == v2_lo)) {
- cc = 0;
- stq(a2, env->regs[r3]);
- stq(a2 + 8, env->regs[r3 + 1]);
- } else {
- cc = 1;
- env->regs[r1] = v2_hi;
- env->regs[r1 + 1] = v2_lo;
- }
-
- return cc;
-}
-
-/* compare and swap 32-bit */
-uint32_t HELPER(cs)(uint32_t r1, uint64_t a2, uint32_t r3)
-{
- /* FIXME: locking? */
- uint32_t cc;
- uint32_t v2 = ldl(a2);
-
- HELPER_LOG("%s: r1 %d a2 0x%lx r3 %d\n", __func__, r1, a2, r3);
- if (((uint32_t)env->regs[r1]) == v2) {
- cc = 0;
- stl(a2, (uint32_t)env->regs[r3]);
- } else {
- cc = 1;
- env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | v2;
- }
- return cc;
-}
-
-static uint32_t helper_icm(uint32_t r1, uint64_t address, uint32_t mask)
-{
- int pos = 24; /* top of the lower half of r1 */
- uint64_t rmask = 0xff000000ULL;
- uint8_t val = 0;
- int ccd = 0;
- uint32_t cc = 0;
-
- while (mask) {
- if (mask & 8) {
- env->regs[r1] &= ~rmask;
- val = ldub(address);
- if ((val & 0x80) && !ccd) {
- cc = 1;
- }
- ccd = 1;
- if (val && cc == 0) {
- cc = 2;
- }
- env->regs[r1] |= (uint64_t)val << pos;
- address++;
- }
- mask = (mask << 1) & 0xf;
- pos -= 8;
- rmask >>= 8;
- }
-
- return cc;
-}
-
-/* execute instruction
- this instruction executes an insn modified with the contents of r1
- it does not change the executed instruction in memory
- it does not change the program counter
- in other words: tricky...
- currently implemented by interpreting the cases it is most commonly used in
-*/
-uint32_t HELPER(ex)(uint32_t cc, uint64_t v1, uint64_t addr, uint64_t ret)
-{
- uint16_t insn = lduw_code(addr);
-
- HELPER_LOG("%s: v1 0x%lx addr 0x%lx insn 0x%x\n", __func__, v1, addr,
- insn);
- if ((insn & 0xf0ff) == 0xd000) {
- uint32_t l, insn2, b1, b2, d1, d2;
-
- l = v1 & 0xff;
- insn2 = ldl_code(addr + 2);
- b1 = (insn2 >> 28) & 0xf;
- b2 = (insn2 >> 12) & 0xf;
- d1 = (insn2 >> 16) & 0xfff;
- d2 = insn2 & 0xfff;
- switch (insn & 0xf00) {
- case 0x200:
- helper_mvc(l, get_address(0, b1, d1), get_address(0, b2, d2));
- break;
- case 0x500:
- cc = helper_clc(l, get_address(0, b1, d1), get_address(0, b2, d2));
- break;
- case 0x700:
- cc = helper_xc(l, get_address(0, b1, d1), get_address(0, b2, d2));
- break;
- case 0xc00:
- helper_tr(l, get_address(0, b1, d1), get_address(0, b2, d2));
- break;
- default:
- goto abort;
- break;
- }
- } else if ((insn & 0xff00) == 0x0a00) {
- /* supervisor call */
- HELPER_LOG("%s: svc %ld via execute\n", __func__, (insn | v1) & 0xff);
- env->psw.addr = ret - 4;
- env->int_svc_code = (insn | v1) & 0xff;
- env->int_svc_ilc = 4;
- helper_exception(EXCP_SVC);
- } else if ((insn & 0xff00) == 0xbf00) {
- uint32_t insn2, r1, r3, b2, d2;
-
- insn2 = ldl_code(addr + 2);
- r1 = (insn2 >> 20) & 0xf;
- r3 = (insn2 >> 16) & 0xf;
- b2 = (insn2 >> 12) & 0xf;
- d2 = insn2 & 0xfff;
- cc = helper_icm(r1, get_address(0, b2, d2), r3);
- } else {
- abort:
- cpu_abort(env, "EXECUTE on instruction prefix 0x%x not implemented\n",
- insn);
- }
- return cc;
-}
-
-/* store character under mask high operates on the upper half of r1 */
-void HELPER(stcmh)(uint32_t r1, uint64_t address, uint32_t mask)
-{
- int pos = 56; /* top of the upper half of r1 */
-
- while (mask) {
- if (mask & 8) {
- stb(address, (env->regs[r1] >> pos) & 0xff);
- address++;
- }
- mask = (mask << 1) & 0xf;
- pos -= 8;
- }
-}
-
-/* insert character under mask high; same as icm, but operates on the
- upper half of r1 */
-uint32_t HELPER(icmh)(uint32_t r1, uint64_t address, uint32_t mask)
-{
- int pos = 56; /* top of the upper half of r1 */
- uint64_t rmask = 0xff00000000000000ULL;
- uint8_t val = 0;
- int ccd = 0;
- uint32_t cc = 0;
-
- while (mask) {
- if (mask & 8) {
- env->regs[r1] &= ~rmask;
- val = ldub(address);
- if ((val & 0x80) && !ccd) {
- cc = 1;
- }
- ccd = 1;
- if (val && cc == 0) {
- cc = 2;
- }
- env->regs[r1] |= (uint64_t)val << pos;
- address++;
- }
- mask = (mask << 1) & 0xf;
- pos -= 8;
- rmask >>= 8;
- }
-
- return cc;
-}
-
-/* load access registers r1 to r3 from memory at a2 */
-void HELPER(lam)(uint32_t r1, uint64_t a2, uint32_t r3)
-{
- int i;
-
- for (i = r1;; i = (i + 1) % 16) {
- env->aregs[i] = ldl(a2);
- a2 += 4;
-
- if (i == r3) {
- break;
- }
- }
-}
-
-/* store access registers r1 to r3 in memory at a2 */
-void HELPER(stam)(uint32_t r1, uint64_t a2, uint32_t r3)
-{
- int i;
-
- for (i = r1;; i = (i + 1) % 16) {
- stl(a2, env->aregs[i]);
- a2 += 4;
-
- if (i == r3) {
- break;
- }
- }
-}
-
-/* move long */
-uint32_t HELPER(mvcl)(uint32_t r1, uint32_t r2)
-{
- uint64_t destlen = env->regs[r1 + 1] & 0xffffff;
- uint64_t dest = get_address_31fix(r1);
- uint64_t srclen = env->regs[r2 + 1] & 0xffffff;
- uint64_t src = get_address_31fix(r2);
- uint8_t pad = src >> 24;
- uint8_t v;
- uint32_t cc;
-
- if (destlen == srclen) {
- cc = 0;
- } else if (destlen < srclen) {
- cc = 1;
- } else {
- cc = 2;
- }
-
- if (srclen > destlen) {
- srclen = destlen;
- }
-
- for (; destlen && srclen; src++, dest++, destlen--, srclen--) {
- v = ldub(src);
- stb(dest, v);
- }
-
- for (; destlen; dest++, destlen--) {
- stb(dest, pad);
- }
-
- env->regs[r1 + 1] = destlen;
- /* can't use srclen here, we trunc'ed it */
- env->regs[r2 + 1] -= src - env->regs[r2];
- env->regs[r1] = dest;
- env->regs[r2] = src;
-
- return cc;
-}
-
-/* move long extended another memcopy insn with more bells and whistles */
-uint32_t HELPER(mvcle)(uint32_t r1, uint64_t a2, uint32_t r3)
-{
- uint64_t destlen = env->regs[r1 + 1];
- uint64_t dest = env->regs[r1];
- uint64_t srclen = env->regs[r3 + 1];
- uint64_t src = env->regs[r3];
- uint8_t pad = a2 & 0xff;
- uint8_t v;
- uint32_t cc;
-
- if (!(env->psw.mask & PSW_MASK_64)) {
- destlen = (uint32_t)destlen;
- srclen = (uint32_t)srclen;
- dest &= 0x7fffffff;
- src &= 0x7fffffff;
- }
-
- if (destlen == srclen) {
- cc = 0;
- } else if (destlen < srclen) {
- cc = 1;
- } else {
- cc = 2;
- }
-
- if (srclen > destlen) {
- srclen = destlen;
- }
-
- for (; destlen && srclen; src++, dest++, destlen--, srclen--) {
- v = ldub(src);
- stb(dest, v);
- }
-
- for (; destlen; dest++, destlen--) {
- stb(dest, pad);
- }
-
- env->regs[r1 + 1] = destlen;
- /* can't use srclen here, we trunc'ed it */
- /* FIXME: 31-bit mode! */
- env->regs[r3 + 1] -= src - env->regs[r3];
- env->regs[r1] = dest;
- env->regs[r3] = src;
-
- return cc;
-}
-
-/* compare logical long extended memcompare insn with padding */
-uint32_t HELPER(clcle)(uint32_t r1, uint64_t a2, uint32_t r3)
-{
- uint64_t destlen = env->regs[r1 + 1];
- uint64_t dest = get_address_31fix(r1);
- uint64_t srclen = env->regs[r3 + 1];
- uint64_t src = get_address_31fix(r3);
- uint8_t pad = a2 & 0xff;
- uint8_t v1 = 0, v2 = 0;
- uint32_t cc = 0;
-
- if (!(destlen || srclen)) {
- return cc;
- }
-
- if (srclen > destlen) {
- srclen = destlen;
- }
-
- for (; destlen || srclen; src++, dest++, destlen--, srclen--) {
- v1 = srclen ? ldub(src) : pad;
- v2 = destlen ? ldub(dest) : pad;
- if (v1 != v2) {
- cc = (v1 < v2) ? 1 : 2;
- break;
- }
- }
-
- env->regs[r1 + 1] = destlen;
- /* can't use srclen here, we trunc'ed it */
- env->regs[r3 + 1] -= src - env->regs[r3];
- env->regs[r1] = dest;
- env->regs[r3] = src;
-
- return cc;
-}
-
-/* checksum */
-void HELPER(cksm)(uint32_t r1, uint32_t r2)
-{
- uint64_t src = get_address_31fix(r2);
- uint64_t src_len = env->regs[(r2 + 1) & 15];
- uint64_t cksm = (uint32_t)env->regs[r1];
-
- while (src_len >= 4) {
- cksm += ldl(src);
-
- /* move to next word */
- src_len -= 4;
- src += 4;
- }
-
- switch (src_len) {
- case 0:
- break;
- case 1:
- cksm += ldub(src) << 24;
- break;
- case 2:
- cksm += lduw(src) << 16;
- break;
- case 3:
- cksm += lduw(src) << 16;
- cksm += ldub(src + 2) << 8;
- break;
- }
-
- /* indicate we've processed everything */
- env->regs[r2] = src + src_len;
- env->regs[(r2 + 1) & 15] = 0;
-
- /* store result */
- env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) |
- ((uint32_t)cksm + (cksm >> 32));
-}
-
-void HELPER(unpk)(uint32_t len, uint64_t dest, uint64_t src)
-{
- int len_dest = len >> 4;
- int len_src = len & 0xf;
- uint8_t b;
- int second_nibble = 0;
-
- dest += len_dest;
- src += len_src;
-
- /* last byte is special, it only flips the nibbles */
- b = ldub(src);
- stb(dest, (b << 4) | (b >> 4));
- src--;
- len_src--;
-
- /* now pad every nibble with 0xf0 */
-
- while (len_dest > 0) {
- uint8_t cur_byte = 0;
-
- if (len_src > 0) {
- cur_byte = ldub(src);
- }
-
- len_dest--;
- dest--;
-
- /* only advance one nibble at a time */
- if (second_nibble) {
- cur_byte >>= 4;
- len_src--;
- src--;
- }
- second_nibble = !second_nibble;
-
- /* digit */
- cur_byte = (cur_byte & 0xf);
- /* zone bits */
- cur_byte |= 0xf0;
-
- stb(dest, cur_byte);
- }
-}
-
-void HELPER(tr)(uint32_t len, uint64_t array, uint64_t trans)
-{
- int i;
-
- for (i = 0; i <= len; i++) {
- uint8_t byte = ldub(array + i);
- uint8_t new_byte = ldub(trans + byte);
-
- stb(array + i, new_byte);
- }
-}
-
-#ifndef CONFIG_USER_ONLY
void program_interrupt(CPUS390XState *env, uint32_t code, int ilc)
{
qemu_log("program interrupt at %#" PRIx64 "\n", env->psw.addr);
@@ -1267,206 +384,6 @@ uint32_t HELPER(stsi)(uint64_t a0, uint32_t r0, uint32_t r1)
return cc;
}
-void HELPER(lctlg)(uint32_t r1, uint64_t a2, uint32_t r3)
-{
- int i;
- uint64_t src = a2;
-
- for (i = r1;; i = (i + 1) % 16) {
- env->cregs[i] = ldq(src);
- HELPER_LOG("load ctl %d from 0x%" PRIx64 " == 0x%" PRIx64 "\n",
- i, src, env->cregs[i]);
- src += sizeof(uint64_t);
-
- if (i == r3) {
- break;
- }
- }
-
- tlb_flush(env, 1);
-}
-
-void HELPER(lctl)(uint32_t r1, uint64_t a2, uint32_t r3)
-{
- int i;
- uint64_t src = a2;
-
- for (i = r1;; i = (i + 1) % 16) {
- env->cregs[i] = (env->cregs[i] & 0xFFFFFFFF00000000ULL) | ldl(src);
- src += sizeof(uint32_t);
-
- if (i == r3) {
- break;
- }
- }
-
- tlb_flush(env, 1);
-}
-
-void HELPER(stctg)(uint32_t r1, uint64_t a2, uint32_t r3)
-{
- int i;
- uint64_t dest = a2;
-
- for (i = r1;; i = (i + 1) % 16) {
- stq(dest, env->cregs[i]);
- dest += sizeof(uint64_t);
-
- if (i == r3) {
- break;
- }
- }
-}
-
-void HELPER(stctl)(uint32_t r1, uint64_t a2, uint32_t r3)
-{
- int i;
- uint64_t dest = a2;
-
- for (i = r1;; i = (i + 1) % 16) {
- stl(dest, env->cregs[i]);
- dest += sizeof(uint32_t);
-
- if (i == r3) {
- break;
- }
- }
-}
-
-uint32_t HELPER(tprot)(uint64_t a1, uint64_t a2)
-{
- /* XXX implement */
-
- return 0;
-}
-
-/* insert storage key extended */
-uint64_t HELPER(iske)(uint64_t r2)
-{
- uint64_t addr = get_address(0, 0, r2);
-
- if (addr > ram_size) {
- return 0;
- }
-
- return env->storage_keys[addr / TARGET_PAGE_SIZE];
-}
-
-/* set storage key extended */
-void HELPER(sske)(uint32_t r1, uint64_t r2)
-{
- uint64_t addr = get_address(0, 0, r2);
-
- if (addr > ram_size) {
- return;
- }
-
- env->storage_keys[addr / TARGET_PAGE_SIZE] = r1;
-}
-
-/* reset reference bit extended */
-uint32_t HELPER(rrbe)(uint32_t r1, uint64_t r2)
-{
- uint8_t re;
- uint8_t key;
-
- if (r2 > ram_size) {
- return 0;
- }
-
- key = env->storage_keys[r2 / TARGET_PAGE_SIZE];
- re = key & (SK_R | SK_C);
- env->storage_keys[r2 / TARGET_PAGE_SIZE] = (key & ~SK_R);
-
- /*
- * cc
- *
- * 0 Reference bit zero; change bit zero
- * 1 Reference bit zero; change bit one
- * 2 Reference bit one; change bit zero
- * 3 Reference bit one; change bit one
- */
-
- return re >> 1;
-}
-
-/* compare and swap and purge */
-uint32_t HELPER(csp)(uint32_t r1, uint32_t r2)
-{
- uint32_t cc;
- uint32_t o1 = env->regs[r1];
- uint64_t a2 = get_address_31fix(r2) & ~3ULL;
- uint32_t o2 = ldl(a2);
-
- if (o1 == o2) {
- stl(a2, env->regs[(r1 + 1) & 15]);
- if (env->regs[r2] & 0x3) {
- /* flush TLB / ALB */
- tlb_flush(env, 1);
- }
- cc = 0;
- } else {
- env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | o2;
- cc = 1;
- }
-
- return cc;
-}
-
-static uint32_t mvc_asc(int64_t l, uint64_t a1, uint64_t mode1, uint64_t a2,
- uint64_t mode2)
-{
- target_ulong src, dest;
- int flags, cc = 0, i;
-
- if (!l) {
- return 0;
- } else if (l > 256) {
- /* max 256 */
- l = 256;
- cc = 3;
- }
-
- if (mmu_translate(env, a1 & TARGET_PAGE_MASK, 1, mode1, &dest, &flags)) {
- cpu_loop_exit(env);
- }
- dest |= a1 & ~TARGET_PAGE_MASK;
-
- if (mmu_translate(env, a2 & TARGET_PAGE_MASK, 0, mode2, &src, &flags)) {
- cpu_loop_exit(env);
- }
- src |= a2 & ~TARGET_PAGE_MASK;
-
- /* XXX replace w/ memcpy */
- for (i = 0; i < l; i++) {
- /* XXX be more clever */
- if ((((dest + i) & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) ||
- (((src + i) & TARGET_PAGE_MASK) != (src & TARGET_PAGE_MASK))) {
- mvc_asc(l - i, a1 + i, mode1, a2 + i, mode2);
- break;
- }
- stb_phys(dest + i, ldub_phys(src + i));
- }
-
- return cc;
-}
-
-uint32_t HELPER(mvcs)(uint64_t l, uint64_t a1, uint64_t a2)
-{
- HELPER_LOG("%s: %16" PRIx64 " %16" PRIx64 " %16" PRIx64 "\n",
- __func__, l, a1, a2);
-
- return mvc_asc(l, a1, PSW_ASC_SECONDARY, a2, PSW_ASC_PRIMARY);
-}
-
-uint32_t HELPER(mvcp)(uint64_t l, uint64_t a1, uint64_t a2)
-{
- HELPER_LOG("%s: %16" PRIx64 " %16" PRIx64 " %16" PRIx64 "\n",
- __func__, l, a1, a2);
-
- return mvc_asc(l, a1, PSW_ASC_PRIMARY, a2, PSW_ASC_SECONDARY);
-}
-
uint32_t HELPER(sigp)(uint64_t order_code, uint32_t r1, uint64_t cpu_addr)
{
int cc = 0;
@@ -1508,78 +425,4 @@ uint32_t HELPER(sigp)(uint64_t order_code, uint32_t r1, uint64_t cpu_addr)
return cc;
}
-
-/* invalidate pte */
-void HELPER(ipte)(uint64_t pte_addr, uint64_t vaddr)
-{
- uint64_t page = vaddr & TARGET_PAGE_MASK;
- uint64_t pte = 0;
-
- /* XXX broadcast to other CPUs */
-
- /* XXX Linux is nice enough to give us the exact pte address.
- According to spec we'd have to find it out ourselves */
- /* XXX Linux is fine with overwriting the pte, the spec requires
- us to only set the invalid bit */
- stq_phys(pte_addr, pte | _PAGE_INVALID);
-
- /* XXX we exploit the fact that Linux passes the exact virtual
- address here - it's not obliged to! */
- tlb_flush_page(env, page);
-
- /* XXX 31-bit hack */
- if (page & 0x80000000) {
- tlb_flush_page(env, page & ~0x80000000);
- } else {
- tlb_flush_page(env, page | 0x80000000);
- }
-}
-
-/* flush local tlb */
-void HELPER(ptlb)(void)
-{
- tlb_flush(env, 1);
-}
-
-/* store using real address */
-void HELPER(stura)(uint64_t addr, uint32_t v1)
-{
- stw_phys(get_address(0, 0, addr), v1);
-}
-
-/* load real address */
-uint32_t HELPER(lra)(uint64_t addr, uint32_t r1)
-{
- uint32_t cc = 0;
- int old_exc = env->exception_index;
- uint64_t asc = env->psw.mask & PSW_MASK_ASC;
- uint64_t ret;
- int flags;
-
- /* XXX incomplete - has more corner cases */
- if (!(env->psw.mask & PSW_MASK_64) && (addr >> 32)) {
- program_interrupt(env, PGM_SPECIAL_OP, 2);
- }
-
- env->exception_index = old_exc;
- if (mmu_translate(env, addr, 0, asc, &ret, &flags)) {
- cc = 3;
- }
- if (env->exception_index == EXCP_PGM) {
- ret = env->int_pgm_code | 0x80000000;
- } else {
- ret |= addr & ~TARGET_PAGE_MASK;
- }
- env->exception_index = old_exc;
-
- if (!(env->psw.mask & PSW_MASK_64)) {
- env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) |
- (ret & 0xffffffffULL);
- } else {
- env->regs[r1] = ret;
- }
-
- return cc;
-}
-
#endif
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-22 01:44:02 +0000