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authorThomas Huth <thuth@redhat.com>2016-10-11 08:56:52 +0200
committerThomas Huth <thuth@redhat.com>2016-12-20 21:52:12 +0100
commitfcf5ef2ab52c621a4617ebbef36bf43b4003f4c0 (patch)
tree2b450d96b01455df8ed908bf8f26ddc388a03380 /target-unicore32/op_helper.c
parent82ecffa8c050bf5bbc13329e9b65eac1caa5b55c (diff)
Move target-* CPU file into a target/ folder
We've currently got 18 architectures in QEMU, and thus 18 target-xxx folders in the root folder of the QEMU source tree. More architectures (e.g. RISC-V, AVR) are likely to be included soon, too, so the main folder of the QEMU sources slowly gets quite overcrowded with the target-xxx folders. To disburden the main folder a little bit, let's move the target-xxx folders into a dedicated target/ folder, so that target-xxx/ simply becomes target/xxx/ instead. Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part] Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part] Acked-by: Michael Walle <michael@walle.cc> [lm32 part] Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part] Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part] Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part] Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part] Acked-by: Richard Henderson <rth@twiddle.net> [alpha part] Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part] Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part] Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part] Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part] Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'target-unicore32/op_helper.c')
-rw-r--r--target-unicore32/op_helper.c261
1 files changed, 0 insertions, 261 deletions
diff --git a/target-unicore32/op_helper.c b/target-unicore32/op_helper.c
deleted file mode 100644
index 0872c29faa..0000000000
--- a/target-unicore32/op_helper.c
+++ /dev/null
@@ -1,261 +0,0 @@
-/*
- * UniCore32 helper routines
- *
- * Copyright (C) 2010-2012 Guan Xuetao
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation, or (at your option) any
- * later version. See the COPYING file in the top-level directory.
- */
-#include "qemu/osdep.h"
-#include "cpu.h"
-#include "exec/helper-proto.h"
-#include "exec/exec-all.h"
-#include "exec/cpu_ldst.h"
-
-#define SIGNBIT (uint32_t)0x80000000
-#define SIGNBIT64 ((uint64_t)1 << 63)
-
-void HELPER(exception)(CPUUniCore32State *env, uint32_t excp)
-{
- CPUState *cs = CPU(uc32_env_get_cpu(env));
-
- cs->exception_index = excp;
- cpu_loop_exit(cs);
-}
-
-static target_ulong asr_read(CPUUniCore32State *env)
-{
- int ZF;
- ZF = (env->ZF == 0);
- return env->uncached_asr | (env->NF & 0x80000000) | (ZF << 30) |
- (env->CF << 29) | ((env->VF & 0x80000000) >> 3);
-}
-
-target_ulong cpu_asr_read(CPUUniCore32State *env)
-{
- return asr_read(env);
-}
-
-target_ulong HELPER(asr_read)(CPUUniCore32State *env)
-{
- return asr_read(env);
-}
-
-static void asr_write(CPUUniCore32State *env, target_ulong val,
- target_ulong mask)
-{
- if (mask & ASR_NZCV) {
- env->ZF = (~val) & ASR_Z;
- env->NF = val;
- env->CF = (val >> 29) & 1;
- env->VF = (val << 3) & 0x80000000;
- }
-
- if ((env->uncached_asr ^ val) & mask & ASR_M) {
- switch_mode(env, val & ASR_M);
- }
- mask &= ~ASR_NZCV;
- env->uncached_asr = (env->uncached_asr & ~mask) | (val & mask);
-}
-
-void cpu_asr_write(CPUUniCore32State *env, target_ulong val, target_ulong mask)
-{
- asr_write(env, val, mask);
-}
-
-void HELPER(asr_write)(CPUUniCore32State *env, target_ulong val,
- target_ulong mask)
-{
- asr_write(env, val, mask);
-}
-
-/* Access to user mode registers from privileged modes. */
-uint32_t HELPER(get_user_reg)(CPUUniCore32State *env, uint32_t regno)
-{
- uint32_t val;
-
- if (regno == 29) {
- val = env->banked_r29[0];
- } else if (regno == 30) {
- val = env->banked_r30[0];
- } else {
- val = env->regs[regno];
- }
- return val;
-}
-
-void HELPER(set_user_reg)(CPUUniCore32State *env, uint32_t regno, uint32_t val)
-{
- if (regno == 29) {
- env->banked_r29[0] = val;
- } else if (regno == 30) {
- env->banked_r30[0] = val;
- } else {
- env->regs[regno] = val;
- }
-}
-
-/* ??? Flag setting arithmetic is awkward because we need to do comparisons.
- The only way to do that in TCG is a conditional branch, which clobbers
- all our temporaries. For now implement these as helper functions. */
-
-uint32_t HELPER(add_cc)(CPUUniCore32State *env, uint32_t a, uint32_t b)
-{
- uint32_t result;
- result = a + b;
- env->NF = env->ZF = result;
- env->CF = result < a;
- env->VF = (a ^ b ^ -1) & (a ^ result);
- return result;
-}
-
-uint32_t HELPER(adc_cc)(CPUUniCore32State *env, uint32_t a, uint32_t b)
-{
- uint32_t result;
- if (!env->CF) {
- result = a + b;
- env->CF = result < a;
- } else {
- result = a + b + 1;
- env->CF = result <= a;
- }
- env->VF = (a ^ b ^ -1) & (a ^ result);
- env->NF = env->ZF = result;
- return result;
-}
-
-uint32_t HELPER(sub_cc)(CPUUniCore32State *env, uint32_t a, uint32_t b)
-{
- uint32_t result;
- result = a - b;
- env->NF = env->ZF = result;
- env->CF = a >= b;
- env->VF = (a ^ b) & (a ^ result);
- return result;
-}
-
-uint32_t HELPER(sbc_cc)(CPUUniCore32State *env, uint32_t a, uint32_t b)
-{
- uint32_t result;
- if (!env->CF) {
- result = a - b - 1;
- env->CF = a > b;
- } else {
- result = a - b;
- env->CF = a >= b;
- }
- env->VF = (a ^ b) & (a ^ result);
- env->NF = env->ZF = result;
- return result;
-}
-
-/* Similarly for variable shift instructions. */
-
-uint32_t HELPER(shl)(uint32_t x, uint32_t i)
-{
- int shift = i & 0xff;
- if (shift >= 32) {
- return 0;
- }
- return x << shift;
-}
-
-uint32_t HELPER(shr)(uint32_t x, uint32_t i)
-{
- int shift = i & 0xff;
- if (shift >= 32) {
- return 0;
- }
- return (uint32_t)x >> shift;
-}
-
-uint32_t HELPER(sar)(uint32_t x, uint32_t i)
-{
- int shift = i & 0xff;
- if (shift >= 32) {
- shift = 31;
- }
- return (int32_t)x >> shift;
-}
-
-uint32_t HELPER(shl_cc)(CPUUniCore32State *env, uint32_t x, uint32_t i)
-{
- int shift = i & 0xff;
- if (shift >= 32) {
- if (shift == 32) {
- env->CF = x & 1;
- } else {
- env->CF = 0;
- }
- return 0;
- } else if (shift != 0) {
- env->CF = (x >> (32 - shift)) & 1;
- return x << shift;
- }
- return x;
-}
-
-uint32_t HELPER(shr_cc)(CPUUniCore32State *env, uint32_t x, uint32_t i)
-{
- int shift = i & 0xff;
- if (shift >= 32) {
- if (shift == 32) {
- env->CF = (x >> 31) & 1;
- } else {
- env->CF = 0;
- }
- return 0;
- } else if (shift != 0) {
- env->CF = (x >> (shift - 1)) & 1;
- return x >> shift;
- }
- return x;
-}
-
-uint32_t HELPER(sar_cc)(CPUUniCore32State *env, uint32_t x, uint32_t i)
-{
- int shift = i & 0xff;
- if (shift >= 32) {
- env->CF = (x >> 31) & 1;
- return (int32_t)x >> 31;
- } else if (shift != 0) {
- env->CF = (x >> (shift - 1)) & 1;
- return (int32_t)x >> shift;
- }
- return x;
-}
-
-uint32_t HELPER(ror_cc)(CPUUniCore32State *env, uint32_t x, uint32_t i)
-{
- int shift1, shift;
- shift1 = i & 0xff;
- shift = shift1 & 0x1f;
- if (shift == 0) {
- if (shift1 != 0) {
- env->CF = (x >> 31) & 1;
- }
- return x;
- } else {
- env->CF = (x >> (shift - 1)) & 1;
- return ((uint32_t)x >> shift) | (x << (32 - shift));
- }
-}
-
-#ifndef CONFIG_USER_ONLY
-void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
- int mmu_idx, uintptr_t retaddr)
-{
- int ret;
-
- ret = uc32_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
- if (unlikely(ret)) {
- if (retaddr) {
- /* now we have a real cpu fault */
- cpu_restore_state(cs, retaddr);
- }
- cpu_loop_exit(cs);
- }
-}
-#endif