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authorMarkus Armbruster <armbru@redhat.com>2021-05-03 10:40:33 +0200
committerMarkus Armbruster <armbru@redhat.com>2021-05-12 18:20:25 +0200
commit9d49bcf6992a2ba77f79d2512e23b8ca26d72f6a (patch)
tree0d3adfe1d417577ef0c78894d47a4956f318cb2f /target/lm32
parent09ec85176e4095be15f233ebc870d5680123f024 (diff)
Drop the deprecated lm32 target
Target lm32 was deprecated in commit d8498005122, v5.2.0. See there for rationale. Some of its code lives on in device models derived from milkymist ones: hw/char/digic-uart.c and hw/display/bcm2835_fb.c. Cc: Michael Walle <michael@walle.cc> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20210503084034.3804963-2-armbru@redhat.com> Acked-by: Michael Walle <michael@walle.cc> [Trivial conflicts resolved, reST markup fixed]
Diffstat (limited to 'target/lm32')
-rw-r--r--target/lm32/README45
-rw-r--r--target/lm32/TODO1
-rw-r--r--target/lm32/cpu-param.h17
-rw-r--r--target/lm32/cpu-qom.h48
-rw-r--r--target/lm32/cpu.c274
-rw-r--r--target/lm32/cpu.h262
-rw-r--r--target/lm32/gdbstub.c92
-rw-r--r--target/lm32/helper.c224
-rw-r--r--target/lm32/helper.h14
-rw-r--r--target/lm32/lm32-semi.c211
-rw-r--r--target/lm32/machine.c33
-rw-r--r--target/lm32/meson.build15
-rw-r--r--target/lm32/op_helper.c148
-rw-r--r--target/lm32/translate.c1237
14 files changed, 0 insertions, 2621 deletions
diff --git a/target/lm32/README b/target/lm32/README
deleted file mode 100644
index ba3508a711..0000000000
--- a/target/lm32/README
+++ /dev/null
@@ -1,45 +0,0 @@
-LatticeMico32 target
---------------------
-
-General
--------
-All opcodes including the JUART CSRs are supported.
-
-
-JTAG UART
----------
-JTAG UART is routed to a serial console device. For the current boards it
-is the second one. Ie to enable it in the qemu virtual console window use
-the following command line parameters:
- -serial vc -serial vc
-This will make serial0 (the lm32_uart) and serial1 (the JTAG UART)
-available as virtual consoles.
-
-
-Semihosting
------------
-Semihosting on this target is supported. Some system calls like read, write
-and exit are executed on the host if semihosting is enabled. See
-target/lm32-semi.c for all supported system calls. Emulation aware programs
-can use this mechanism to shut down the virtual machine and print to the
-host console. See the tcg tests for an example.
-
-
-Special instructions
---------------------
-The translation recognizes one special instruction to halt the cpu:
- and r0, r0, r0
-On real hardware this instruction is a nop. It is not used by GCC and
-should (hopefully) not be used within hand-crafted assembly.
-Insert this instruction in your idle loop to reduce the cpu load on the
-host.
-
-
-Ignoring the MSB of the address bus
------------------------------------
-Some SoC ignores the MSB on the address bus. Thus creating a shadow memory
-area. As a general rule, 0x00000000-0x7fffffff is cached, whereas
-0x80000000-0xffffffff is not cached and used to access IO devices. This
-behaviour can be enabled with:
- cpu_lm32_set_phys_msb_ignore(env, 1);
-
diff --git a/target/lm32/TODO b/target/lm32/TODO
deleted file mode 100644
index e163c42ebe..0000000000
--- a/target/lm32/TODO
+++ /dev/null
@@ -1 +0,0 @@
-* linux-user emulation
diff --git a/target/lm32/cpu-param.h b/target/lm32/cpu-param.h
deleted file mode 100644
index d89574ad19..0000000000
--- a/target/lm32/cpu-param.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * LatticeMico32 cpu parameters for qemu.
- *
- * Copyright (c) 2010 Michael Walle <michael@walle.cc>
- * SPDX-License-Identifier: LGPL-2.0+
- */
-
-#ifndef LM32_CPU_PARAM_H
-#define LM32_CPU_PARAM_H 1
-
-#define TARGET_LONG_BITS 32
-#define TARGET_PAGE_BITS 12
-#define TARGET_PHYS_ADDR_SPACE_BITS 32
-#define TARGET_VIRT_ADDR_SPACE_BITS 32
-#define NB_MMU_MODES 1
-
-#endif
diff --git a/target/lm32/cpu-qom.h b/target/lm32/cpu-qom.h
deleted file mode 100644
index 245b35cd1d..0000000000
--- a/target/lm32/cpu-qom.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * QEMU LatticeMico32 CPU
- *
- * Copyright (c) 2012 SUSE LINUX Products GmbH
- *
- * 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 2.1 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/lgpl-2.1.html>
- */
-#ifndef QEMU_LM32_CPU_QOM_H
-#define QEMU_LM32_CPU_QOM_H
-
-#include "hw/core/cpu.h"
-#include "qom/object.h"
-
-#define TYPE_LM32_CPU "lm32-cpu"
-
-OBJECT_DECLARE_TYPE(LM32CPU, LM32CPUClass,
- LM32_CPU)
-
-/**
- * LM32CPUClass:
- * @parent_realize: The parent class' realize handler.
- * @parent_reset: The parent class' reset handler.
- *
- * A LatticeMico32 CPU model.
- */
-struct LM32CPUClass {
- /*< private >*/
- CPUClass parent_class;
- /*< public >*/
-
- DeviceRealize parent_realize;
- DeviceReset parent_reset;
-};
-
-
-#endif
diff --git a/target/lm32/cpu.c b/target/lm32/cpu.c
deleted file mode 100644
index c23d72874c..0000000000
--- a/target/lm32/cpu.c
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- * QEMU LatticeMico32 CPU
- *
- * Copyright (c) 2012 SUSE LINUX Products GmbH
- *
- * 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 2.1 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/lgpl-2.1.html>
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu/qemu-print.h"
-#include "cpu.h"
-
-
-static void lm32_cpu_set_pc(CPUState *cs, vaddr value)
-{
- LM32CPU *cpu = LM32_CPU(cs);
-
- cpu->env.pc = value;
-}
-
-static void lm32_cpu_list_entry(gpointer data, gpointer user_data)
-{
- ObjectClass *oc = data;
- const char *typename = object_class_get_name(oc);
- char *name;
-
- name = g_strndup(typename, strlen(typename) - strlen(LM32_CPU_TYPE_SUFFIX));
- qemu_printf(" %s\n", name);
- g_free(name);
-}
-
-
-void lm32_cpu_list(void)
-{
- GSList *list;
-
- list = object_class_get_list_sorted(TYPE_LM32_CPU, false);
- qemu_printf("Available CPUs:\n");
- g_slist_foreach(list, lm32_cpu_list_entry, NULL);
- g_slist_free(list);
-}
-
-static void lm32_cpu_init_cfg_reg(LM32CPU *cpu)
-{
- CPULM32State *env = &cpu->env;
- uint32_t cfg = 0;
-
- if (cpu->features & LM32_FEATURE_MULTIPLY) {
- cfg |= CFG_M;
- }
-
- if (cpu->features & LM32_FEATURE_DIVIDE) {
- cfg |= CFG_D;
- }
-
- if (cpu->features & LM32_FEATURE_SHIFT) {
- cfg |= CFG_S;
- }
-
- if (cpu->features & LM32_FEATURE_SIGN_EXTEND) {
- cfg |= CFG_X;
- }
-
- if (cpu->features & LM32_FEATURE_I_CACHE) {
- cfg |= CFG_IC;
- }
-
- if (cpu->features & LM32_FEATURE_D_CACHE) {
- cfg |= CFG_DC;
- }
-
- if (cpu->features & LM32_FEATURE_CYCLE_COUNT) {
- cfg |= CFG_CC;
- }
-
- cfg |= (cpu->num_interrupts << CFG_INT_SHIFT);
- cfg |= (cpu->num_breakpoints << CFG_BP_SHIFT);
- cfg |= (cpu->num_watchpoints << CFG_WP_SHIFT);
- cfg |= (cpu->revision << CFG_REV_SHIFT);
-
- env->cfg = cfg;
-}
-
-static bool lm32_cpu_has_work(CPUState *cs)
-{
- return cs->interrupt_request & CPU_INTERRUPT_HARD;
-}
-
-static void lm32_cpu_reset(DeviceState *dev)
-{
- CPUState *s = CPU(dev);
- LM32CPU *cpu = LM32_CPU(s);
- LM32CPUClass *lcc = LM32_CPU_GET_CLASS(cpu);
- CPULM32State *env = &cpu->env;
-
- lcc->parent_reset(dev);
-
- /* reset cpu state */
- memset(env, 0, offsetof(CPULM32State, end_reset_fields));
-
- lm32_cpu_init_cfg_reg(cpu);
-}
-
-static void lm32_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
-{
- info->mach = bfd_mach_lm32;
- info->print_insn = print_insn_lm32;
-}
-
-static void lm32_cpu_realizefn(DeviceState *dev, Error **errp)
-{
- CPUState *cs = CPU(dev);
- LM32CPUClass *lcc = LM32_CPU_GET_CLASS(dev);
- Error *local_err = NULL;
-
- cpu_exec_realizefn(cs, &local_err);
- if (local_err != NULL) {
- error_propagate(errp, local_err);
- return;
- }
-
- cpu_reset(cs);
-
- qemu_init_vcpu(cs);
-
- lcc->parent_realize(dev, errp);
-}
-
-static void lm32_cpu_initfn(Object *obj)
-{
- LM32CPU *cpu = LM32_CPU(obj);
- CPULM32State *env = &cpu->env;
-
- cpu_set_cpustate_pointers(cpu);
-
- env->flags = 0;
-}
-
-static void lm32_basic_cpu_initfn(Object *obj)
-{
- LM32CPU *cpu = LM32_CPU(obj);
-
- cpu->revision = 3;
- cpu->num_interrupts = 32;
- cpu->num_breakpoints = 4;
- cpu->num_watchpoints = 4;
- cpu->features = LM32_FEATURE_SHIFT
- | LM32_FEATURE_SIGN_EXTEND
- | LM32_FEATURE_CYCLE_COUNT;
-}
-
-static void lm32_standard_cpu_initfn(Object *obj)
-{
- LM32CPU *cpu = LM32_CPU(obj);
-
- cpu->revision = 3;
- cpu->num_interrupts = 32;
- cpu->num_breakpoints = 4;
- cpu->num_watchpoints = 4;
- cpu->features = LM32_FEATURE_MULTIPLY
- | LM32_FEATURE_DIVIDE
- | LM32_FEATURE_SHIFT
- | LM32_FEATURE_SIGN_EXTEND
- | LM32_FEATURE_I_CACHE
- | LM32_FEATURE_CYCLE_COUNT;
-}
-
-static void lm32_full_cpu_initfn(Object *obj)
-{
- LM32CPU *cpu = LM32_CPU(obj);
-
- cpu->revision = 3;
- cpu->num_interrupts = 32;
- cpu->num_breakpoints = 4;
- cpu->num_watchpoints = 4;
- cpu->features = LM32_FEATURE_MULTIPLY
- | LM32_FEATURE_DIVIDE
- | LM32_FEATURE_SHIFT
- | LM32_FEATURE_SIGN_EXTEND
- | LM32_FEATURE_I_CACHE
- | LM32_FEATURE_D_CACHE
- | LM32_FEATURE_CYCLE_COUNT;
-}
-
-static ObjectClass *lm32_cpu_class_by_name(const char *cpu_model)
-{
- ObjectClass *oc;
- char *typename;
-
- typename = g_strdup_printf(LM32_CPU_TYPE_NAME("%s"), cpu_model);
- oc = object_class_by_name(typename);
- g_free(typename);
- if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_LM32_CPU) ||
- object_class_is_abstract(oc))) {
- oc = NULL;
- }
- return oc;
-}
-
-#include "hw/core/tcg-cpu-ops.h"
-
-static struct TCGCPUOps lm32_tcg_ops = {
- .initialize = lm32_translate_init,
- .cpu_exec_interrupt = lm32_cpu_exec_interrupt,
- .tlb_fill = lm32_cpu_tlb_fill,
- .debug_excp_handler = lm32_debug_excp_handler,
-
-#ifndef CONFIG_USER_ONLY
- .do_interrupt = lm32_cpu_do_interrupt,
-#endif /* !CONFIG_USER_ONLY */
-};
-
-static void lm32_cpu_class_init(ObjectClass *oc, void *data)
-{
- LM32CPUClass *lcc = LM32_CPU_CLASS(oc);
- CPUClass *cc = CPU_CLASS(oc);
- DeviceClass *dc = DEVICE_CLASS(oc);
-
- device_class_set_parent_realize(dc, lm32_cpu_realizefn,
- &lcc->parent_realize);
- device_class_set_parent_reset(dc, lm32_cpu_reset, &lcc->parent_reset);
-
- cc->class_by_name = lm32_cpu_class_by_name;
- cc->has_work = lm32_cpu_has_work;
- cc->dump_state = lm32_cpu_dump_state;
- cc->set_pc = lm32_cpu_set_pc;
- cc->gdb_read_register = lm32_cpu_gdb_read_register;
- cc->gdb_write_register = lm32_cpu_gdb_write_register;
-#ifndef CONFIG_USER_ONLY
- cc->get_phys_page_debug = lm32_cpu_get_phys_page_debug;
- cc->vmsd = &vmstate_lm32_cpu;
-#endif
- cc->gdb_num_core_regs = 32 + 7;
- cc->gdb_stop_before_watchpoint = true;
- cc->disas_set_info = lm32_cpu_disas_set_info;
- cc->tcg_ops = &lm32_tcg_ops;
-}
-
-#define DEFINE_LM32_CPU_TYPE(cpu_model, initfn) \
- { \
- .parent = TYPE_LM32_CPU, \
- .name = LM32_CPU_TYPE_NAME(cpu_model), \
- .instance_init = initfn, \
- }
-
-static const TypeInfo lm32_cpus_type_infos[] = {
- { /* base class should be registered first */
- .name = TYPE_LM32_CPU,
- .parent = TYPE_CPU,
- .instance_size = sizeof(LM32CPU),
- .instance_init = lm32_cpu_initfn,
- .abstract = true,
- .class_size = sizeof(LM32CPUClass),
- .class_init = lm32_cpu_class_init,
- },
- DEFINE_LM32_CPU_TYPE("lm32-basic", lm32_basic_cpu_initfn),
- DEFINE_LM32_CPU_TYPE("lm32-standard", lm32_standard_cpu_initfn),
- DEFINE_LM32_CPU_TYPE("lm32-full", lm32_full_cpu_initfn),
-};
-
-DEFINE_TYPES(lm32_cpus_type_infos)
diff --git a/target/lm32/cpu.h b/target/lm32/cpu.h
deleted file mode 100644
index ea7c01ca8b..0000000000
--- a/target/lm32/cpu.h
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * LatticeMico32 virtual CPU header.
- *
- * Copyright (c) 2010 Michael Walle <michael@walle.cc>
- *
- * 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 2.1 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/>.
- */
-
-#ifndef LM32_CPU_H
-#define LM32_CPU_H
-
-#include "cpu-qom.h"
-#include "exec/cpu-defs.h"
-
-typedef struct CPULM32State CPULM32State;
-
-static inline int cpu_mmu_index(CPULM32State *env, bool ifetch)
-{
- return 0;
-}
-
-/* Exceptions indices */
-enum {
- EXCP_RESET = 0,
- EXCP_BREAKPOINT,
- EXCP_INSN_BUS_ERROR,
- EXCP_WATCHPOINT,
- EXCP_DATA_BUS_ERROR,
- EXCP_DIVIDE_BY_ZERO,
- EXCP_IRQ,
- EXCP_SYSTEMCALL
-};
-
-/* Registers */
-enum {
- R_R0 = 0, R_R1, R_R2, R_R3, R_R4, R_R5, R_R6, R_R7, R_R8, R_R9, R_R10,
- R_R11, R_R12, R_R13, R_R14, R_R15, R_R16, R_R17, R_R18, R_R19, R_R20,
- R_R21, R_R22, R_R23, R_R24, R_R25, R_R26, R_R27, R_R28, R_R29, R_R30,
- R_R31
-};
-
-/* Register aliases */
-enum {
- R_GP = R_R26,
- R_FP = R_R27,
- R_SP = R_R28,
- R_RA = R_R29,
- R_EA = R_R30,
- R_BA = R_R31
-};
-
-/* IE flags */
-enum {
- IE_IE = (1<<0),
- IE_EIE = (1<<1),
- IE_BIE = (1<<2),
-};
-
-/* DC flags */
-enum {
- DC_SS = (1<<0),
- DC_RE = (1<<1),
- DC_C0 = (1<<2),
- DC_C1 = (1<<3),
- DC_C2 = (1<<4),
- DC_C3 = (1<<5),
-};
-
-/* CFG mask */
-enum {
- CFG_M = (1<<0),
- CFG_D = (1<<1),
- CFG_S = (1<<2),
- CFG_U = (1<<3),
- CFG_X = (1<<4),
- CFG_CC = (1<<5),
- CFG_IC = (1<<6),
- CFG_DC = (1<<7),
- CFG_G = (1<<8),
- CFG_H = (1<<9),
- CFG_R = (1<<10),
- CFG_J = (1<<11),
- CFG_INT_SHIFT = 12,
- CFG_BP_SHIFT = 18,
- CFG_WP_SHIFT = 22,
- CFG_REV_SHIFT = 26,
-};
-
-/* CSRs */
-enum {
- CSR_IE = 0x00,
- CSR_IM = 0x01,
- CSR_IP = 0x02,
- CSR_ICC = 0x03,
- CSR_DCC = 0x04,
- CSR_CC = 0x05,
- CSR_CFG = 0x06,
- CSR_EBA = 0x07,
- CSR_DC = 0x08,
- CSR_DEBA = 0x09,
- CSR_JTX = 0x0e,
- CSR_JRX = 0x0f,
- CSR_BP0 = 0x10,
- CSR_BP1 = 0x11,
- CSR_BP2 = 0x12,
- CSR_BP3 = 0x13,
- CSR_WP0 = 0x18,
- CSR_WP1 = 0x19,
- CSR_WP2 = 0x1a,
- CSR_WP3 = 0x1b,
-};
-
-enum {
- LM32_FEATURE_MULTIPLY = 1,
- LM32_FEATURE_DIVIDE = 2,
- LM32_FEATURE_SHIFT = 4,
- LM32_FEATURE_SIGN_EXTEND = 8,
- LM32_FEATURE_I_CACHE = 16,
- LM32_FEATURE_D_CACHE = 32,
- LM32_FEATURE_CYCLE_COUNT = 64,
-};
-
-enum {
- LM32_FLAG_IGNORE_MSB = 1,
-};
-
-struct CPULM32State {
- /* general registers */
- uint32_t regs[32];
-
- /* special registers */
- uint32_t pc; /* program counter */
- uint32_t ie; /* interrupt enable */
- uint32_t icc; /* instruction cache control */
- uint32_t dcc; /* data cache control */
- uint32_t cc; /* cycle counter */
- uint32_t cfg; /* configuration */
-
- /* debug registers */
- uint32_t dc; /* debug control */
- uint32_t bp[4]; /* breakpoints */
- uint32_t wp[4]; /* watchpoints */
-
- struct CPUBreakpoint *cpu_breakpoint[4];
- struct CPUWatchpoint *cpu_watchpoint[4];
-
- /* Fields up to this point are cleared by a CPU reset */
- struct {} end_reset_fields;
-
- /* Fields from here on are preserved across CPU reset. */
- uint32_t eba; /* exception base address */
- uint32_t deba; /* debug exception base address */
-
- /* interrupt controller handle for callbacks */
- DeviceState *pic_state;
- /* JTAG UART handle for callbacks */
- DeviceState *juart_state;
-
- /* processor core features */
- uint32_t flags;
-
-};
-
-/**
- * LM32CPU:
- * @env: #CPULM32State
- *
- * A LatticeMico32 CPU.
- */
-struct LM32CPU {
- /*< private >*/
- CPUState parent_obj;
- /*< public >*/
-
- CPUNegativeOffsetState neg;
- CPULM32State env;
-
- uint32_t revision;
- uint8_t num_interrupts;
- uint8_t num_breakpoints;
- uint8_t num_watchpoints;
- uint32_t features;
-};
-
-
-#ifndef CONFIG_USER_ONLY
-extern const VMStateDescription vmstate_lm32_cpu;
-#endif
-
-void lm32_cpu_do_interrupt(CPUState *cpu);
-bool lm32_cpu_exec_interrupt(CPUState *cs, int int_req);
-void lm32_cpu_dump_state(CPUState *cpu, FILE *f, int flags);
-hwaddr lm32_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
-int lm32_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
-int lm32_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
-
-typedef enum {
- LM32_WP_DISABLED = 0,
- LM32_WP_READ,
- LM32_WP_WRITE,
- LM32_WP_READ_WRITE,
-} lm32_wp_t;
-
-static inline lm32_wp_t lm32_wp_type(uint32_t dc, int idx)
-{
- assert(idx < 4);
- return (dc >> (idx+1)*2) & 0x3;
-}
-
-/* you can call this signal handler from your SIGBUS and SIGSEGV
- signal handlers to inform the virtual CPU of exceptions. non zero
- is returned if the signal was handled by the virtual CPU. */
-int cpu_lm32_signal_handler(int host_signum, void *pinfo,
- void *puc);
-void lm32_cpu_list(void);
-void lm32_translate_init(void);
-void cpu_lm32_set_phys_msb_ignore(CPULM32State *env, int value);
-void QEMU_NORETURN raise_exception(CPULM32State *env, int index);
-void lm32_debug_excp_handler(CPUState *cs);
-void lm32_breakpoint_insert(CPULM32State *env, int index, target_ulong address);
-void lm32_breakpoint_remove(CPULM32State *env, int index);
-void lm32_watchpoint_insert(CPULM32State *env, int index, target_ulong address,
- lm32_wp_t wp_type);
-void lm32_watchpoint_remove(CPULM32State *env, int index);
-bool lm32_cpu_do_semihosting(CPUState *cs);
-
-#define LM32_CPU_TYPE_SUFFIX "-" TYPE_LM32_CPU
-#define LM32_CPU_TYPE_NAME(model) model LM32_CPU_TYPE_SUFFIX
-#define CPU_RESOLVING_TYPE TYPE_LM32_CPU
-
-#define cpu_list lm32_cpu_list
-#define cpu_signal_handler cpu_lm32_signal_handler
-
-bool lm32_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
- MMUAccessType access_type, int mmu_idx,
- bool probe, uintptr_t retaddr);
-
-typedef CPULM32State CPUArchState;
-typedef LM32CPU ArchCPU;
-
-#include "exec/cpu-all.h"
-
-static inline void cpu_get_tb_cpu_state(CPULM32State *env, target_ulong *pc,
- target_ulong *cs_base, uint32_t *flags)
-{
- *pc = env->pc;
- *cs_base = 0;
- *flags = 0;
-}
-
-#endif
diff --git a/target/lm32/gdbstub.c b/target/lm32/gdbstub.c
deleted file mode 100644
index 56f508a5b6..0000000000
--- a/target/lm32/gdbstub.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * LM32 gdb server stub
- *
- * Copyright (c) 2003-2005 Fabrice Bellard
- * Copyright (c) 2013 SUSE LINUX Products GmbH
- *
- * 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 2.1 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 "qemu/osdep.h"
-#include "cpu.h"
-#include "exec/gdbstub.h"
-#include "hw/lm32/lm32_pic.h"
-
-int lm32_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
-{
- LM32CPU *cpu = LM32_CPU(cs);
- CPULM32State *env = &cpu->env;
-
- if (n < 32) {
- return gdb_get_reg32(mem_buf, env->regs[n]);
- } else {
- switch (n) {
- case 32:
- return gdb_get_reg32(mem_buf, env->pc);
- /* FIXME: put in right exception ID */
- case 33:
- return gdb_get_reg32(mem_buf, 0);
- case 34:
- return gdb_get_reg32(mem_buf, env->eba);
- case 35:
- return gdb_get_reg32(mem_buf, env->deba);
- case 36:
- return gdb_get_reg32(mem_buf, env->ie);
- case 37:
- return gdb_get_reg32(mem_buf, lm32_pic_get_im(env->pic_state));
- case 38:
- return gdb_get_reg32(mem_buf, lm32_pic_get_ip(env->pic_state));
- }
- }
- return 0;
-}
-
-int lm32_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
-{
- LM32CPU *cpu = LM32_CPU(cs);
- CPUClass *cc = CPU_GET_CLASS(cs);
- CPULM32State *env = &cpu->env;
- uint32_t tmp;
-
- if (n > cc->gdb_num_core_regs) {
- return 0;
- }
-
- tmp = ldl_p(mem_buf);
-
- if (n < 32) {
- env->regs[n] = tmp;
- } else {
- switch (n) {
- case 32:
- env->pc = tmp;
- break;
- case 34:
- env->eba = tmp;
- break;
- case 35:
- env->deba = tmp;
- break;
- case 36:
- env->ie = tmp;
- break;
- case 37:
- lm32_pic_set_im(env->pic_state, tmp);
- break;
- case 38:
- lm32_pic_set_ip(env->pic_state, tmp);
- break;
- }
- }
- return 4;
-}
diff --git a/target/lm32/helper.c b/target/lm32/helper.c
deleted file mode 100644
index 01cc3c53a5..0000000000
--- a/target/lm32/helper.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * LatticeMico32 helper routines.
- *
- * Copyright (c) 2010-2014 Michael Walle <michael@walle.cc>
- *
- * 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 2.1 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 "qemu/osdep.h"
-#include "cpu.h"
-#include "exec/exec-all.h"
-#include "qemu/host-utils.h"
-#include "semihosting/semihost.h"
-#include "exec/log.h"
-
-bool lm32_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
- MMUAccessType access_type, int mmu_idx,
- bool probe, uintptr_t retaddr)
-{
- LM32CPU *cpu = LM32_CPU(cs);
- CPULM32State *env = &cpu->env;
- int prot;
-
- address &= TARGET_PAGE_MASK;
- prot = PAGE_BITS;
- if (env->flags & LM32_FLAG_IGNORE_MSB) {
- tlb_set_page(cs, address, address & 0x7fffffff, prot, mmu_idx,
- TARGET_PAGE_SIZE);
- } else {
- tlb_set_page(cs, address, address, prot, mmu_idx, TARGET_PAGE_SIZE);
- }
- return true;
-}
-
-hwaddr lm32_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
-{
- LM32CPU *cpu = LM32_CPU(cs);
-
- addr &= TARGET_PAGE_MASK;
- if (cpu->env.flags & LM32_FLAG_IGNORE_MSB) {
- return addr & 0x7fffffff;
- } else {
- return addr;
- }
-}
-
-void lm32_breakpoint_insert(CPULM32State *env, int idx, target_ulong address)
-{
- cpu_breakpoint_insert(env_cpu(env), address, BP_CPU,
- &env->cpu_breakpoint[idx]);
-}
-
-void lm32_breakpoint_remove(CPULM32State *env, int idx)
-{
- if (!env->cpu_breakpoint[idx]) {
- return;
- }
-
- cpu_breakpoint_remove_by_ref(env_cpu(env), env->cpu_breakpoint[idx]);
- env->cpu_breakpoint[idx] = NULL;
-}
-
-void lm32_watchpoint_insert(CPULM32State *env, int idx, target_ulong address,
- lm32_wp_t wp_type)
-{
- int flags = 0;
-
- switch (wp_type) {
- case LM32_WP_DISABLED:
- /* nothing to do */
- break;
- case LM32_WP_READ:
- flags = BP_CPU | BP_STOP_BEFORE_ACCESS | BP_MEM_READ;
- break;
- case LM32_WP_WRITE:
- flags = BP_CPU | BP_STOP_BEFORE_ACCESS | BP_MEM_WRITE;
- break;
- case LM32_WP_READ_WRITE:
- flags = BP_CPU | BP_STOP_BEFORE_ACCESS | BP_MEM_ACCESS;
- break;
- }
-
- if (flags != 0) {
- cpu_watchpoint_insert(env_cpu(env), address, 1, flags,
- &env->cpu_watchpoint[idx]);
- }
-}
-
-void lm32_watchpoint_remove(CPULM32State *env, int idx)
-{
- if (!env->cpu_watchpoint[idx]) {
- return;
- }
-
- cpu_watchpoint_remove_by_ref(env_cpu(env), env->cpu_watchpoint[idx]);
- env->cpu_watchpoint[idx] = NULL;
-}
-
-static bool check_watchpoints(CPULM32State *env)
-{
- LM32CPU *cpu = env_archcpu(env);
- int i;
-
- for (i = 0; i < cpu->num_watchpoints; i++) {
- if (env->cpu_watchpoint[i] &&
- env->cpu_watchpoint[i]->flags & BP_WATCHPOINT_HIT) {
- return true;
- }
- }
- return false;
-}
-
-void lm32_debug_excp_handler(CPUState *cs)
-{
- LM32CPU *cpu = LM32_CPU(cs);
- CPULM32State *env = &cpu->env;
- CPUBreakpoint *bp;
-
- if (cs->watchpoint_hit) {
- if (cs->watchpoint_hit->flags & BP_CPU) {
- cs->watchpoint_hit = NULL;
- if (check_watchpoints(env)) {
- raise_exception(env, EXCP_WATCHPOINT);
- } else {
- cpu_loop_exit_noexc(cs);
- }
- }
- } else {
- QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
- if (bp->pc == env->pc) {
- if (bp->flags & BP_CPU) {
- raise_exception(env, EXCP_BREAKPOINT);
- }
- break;
- }
- }
- }
-}
-
-void lm32_cpu_do_interrupt(CPUState *cs)
-{
- LM32CPU *cpu = LM32_CPU(cs);
- CPULM32State *env = &cpu->env;
-
- qemu_log_mask(CPU_LOG_INT,
- "exception at pc=%x type=%x\n", env->pc, cs->exception_index);
-
- switch (cs->exception_index) {
- case EXCP_SYSTEMCALL:
- if (unlikely(semihosting_enabled())) {
- /* do_semicall() returns true if call was handled. Otherwise
- * do the normal exception handling. */
- if (lm32_cpu_do_semihosting(cs)) {
- env->pc += 4;
- break;
- }
- }
- /* fall through */
- case EXCP_INSN_BUS_ERROR:
- case EXCP_DATA_BUS_ERROR:
- case EXCP_DIVIDE_BY_ZERO:
- case EXCP_IRQ:
- /* non-debug exceptions */
- env->regs[R_EA] = env->pc;
- env->ie |= (env->ie & IE_IE) ? IE_EIE : 0;
- env->ie &= ~IE_IE;
- if (env->dc & DC_RE) {
- env->pc = env->deba + (cs->exception_index * 32);
- } else {
- env->pc = env->eba + (cs->exception_index * 32);
- }
- log_cpu_state_mask(CPU_LOG_INT, cs, 0);
- break;
- case EXCP_BREAKPOINT:
- case EXCP_WATCHPOINT:
- /* debug exceptions */
- env->regs[R_BA] = env->pc;
- env->ie |= (env->ie & IE_IE) ? IE_BIE : 0;
- env->ie &= ~IE_IE;
- env->pc = env->deba + (cs->exception_index * 32);
- log_cpu_state_mask(CPU_LOG_INT, cs, 0);
- break;
- default:
- cpu_abort(cs, "unhandled exception type=%d\n",
- cs->exception_index);
- break;
- }
-}
-
-bool lm32_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
-{
- LM32CPU *cpu = LM32_CPU(cs);
- CPULM32State *env = &cpu->env;
-
- if ((interrupt_request & CPU_INTERRUPT_HARD) && (env->ie & IE_IE)) {
- cs->exception_index = EXCP_IRQ;
- lm32_cpu_do_interrupt(cs);
- return true;
- }
- return false;
-}
-
-/* Some soc ignores the MSB on the address bus. Thus creating a shadow memory
- * area. As a general rule, 0x00000000-0x7fffffff is cached, whereas
- * 0x80000000-0xffffffff is not cached and used to access IO devices. */
-void cpu_lm32_set_phys_msb_ignore(CPULM32State *env, int value)
-{
- if (value) {
- env->flags |= LM32_FLAG_IGNORE_MSB;
- } else {
- env->flags &= ~LM32_FLAG_IGNORE_MSB;
- }
-}
diff --git a/target/lm32/helper.h b/target/lm32/helper.h
deleted file mode 100644
index 445578c439..0000000000
--- a/target/lm32/helper.h
+++ /dev/null
@@ -1,14 +0,0 @@
-DEF_HELPER_2(raise_exception, void, env, i32)
-DEF_HELPER_1(hlt, void, env)
-DEF_HELPER_3(wcsr_bp, void, env, i32, i32)
-DEF_HELPER_3(wcsr_wp, void, env, i32, i32)
-DEF_HELPER_2(wcsr_dc, void, env, i32)
-DEF_HELPER_2(wcsr_im, void, env, i32)
-DEF_HELPER_2(wcsr_ip, void, env, i32)
-DEF_HELPER_2(wcsr_jtx, void, env, i32)
-DEF_HELPER_2(wcsr_jrx, void, env, i32)
-DEF_HELPER_1(rcsr_im, i32, env)
-DEF_HELPER_1(rcsr_ip, i32, env)
-DEF_HELPER_1(rcsr_jtx, i32, env)
-DEF_HELPER_1(rcsr_jrx, i32, env)
-DEF_HELPER_1(ill, void, env)
diff --git a/target/lm32/lm32-semi.c b/target/lm32/lm32-semi.c
deleted file mode 100644
index 661a770249..0000000000
--- a/target/lm32/lm32-semi.c
+++ /dev/null
@@ -1,211 +0,0 @@
-/*
- * Lattice Mico32 semihosting syscall interface
- *
- * Copyright (c) 2014 Michael Walle <michael@walle.cc>
- *
- * Based on target/m68k/m68k-semi.c, which is
- * Copyright (c) 2005-2007 CodeSourcery.
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "cpu.h"
-#include "exec/helper-proto.h"
-#include "exec/softmmu-semi.h"
-
-enum {
- TARGET_SYS_exit = 1,
- TARGET_SYS_open = 2,
- TARGET_SYS_close = 3,
- TARGET_SYS_read = 4,
- TARGET_SYS_write = 5,
- TARGET_SYS_lseek = 6,
- TARGET_SYS_fstat = 10,
- TARGET_SYS_stat = 15,
-};
-
-enum {
- NEWLIB_O_RDONLY = 0x0,
- NEWLIB_O_WRONLY = 0x1,
- NEWLIB_O_RDWR = 0x2,
- NEWLIB_O_APPEND = 0x8,
- NEWLIB_O_CREAT = 0x200,
- NEWLIB_O_TRUNC = 0x400,
- NEWLIB_O_EXCL = 0x800,
-};
-
-static int translate_openflags(int flags)
-{
- int hf;
-
- if (flags & NEWLIB_O_WRONLY) {
- hf = O_WRONLY;
- } else if (flags & NEWLIB_O_RDWR) {
- hf = O_RDWR;
- } else {
- hf = O_RDONLY;
- }
-
- if (flags & NEWLIB_O_APPEND) {
- hf |= O_APPEND;
- }
-
- if (flags & NEWLIB_O_CREAT) {
- hf |= O_CREAT;
- }
-
- if (flags & NEWLIB_O_TRUNC) {
- hf |= O_TRUNC;
- }
-
- if (flags & NEWLIB_O_EXCL) {
- hf |= O_EXCL;
- }
-
- return hf;
-}
-
-struct newlib_stat {
- int16_t newlib_st_dev; /* device */
- uint16_t newlib_st_ino; /* inode */
- uint16_t newlib_st_mode; /* protection */
- uint16_t newlib_st_nlink; /* number of hard links */
- uint16_t newlib_st_uid; /* user ID of owner */
- uint16_t newlib_st_gid; /* group ID of owner */
- int16_t newlib_st_rdev; /* device type (if inode device) */
- int32_t newlib_st_size; /* total size, in bytes */
- int32_t newlib_st_atime; /* time of last access */
- uint32_t newlib_st_spare1;
- int32_t newlib_st_mtime; /* time of last modification */
- uint32_t newlib_st_spare2;
- int32_t newlib_st_ctime; /* time of last change */
- uint32_t newlib_st_spare3;
-} QEMU_PACKED;
-
-static int translate_stat(CPULM32State *env, target_ulong addr,
- struct stat *s)
-{
- struct newlib_stat *p;
-
- p = lock_user(VERIFY_WRITE, addr, sizeof(struct newlib_stat), 0);
- if (!p) {
- return 0;
- }
- p->newlib_st_dev = cpu_to_be16(s->st_dev);
- p->newlib_st_ino = cpu_to_be16(s->st_ino);
- p->newlib_st_mode = cpu_to_be16(s->st_mode);
- p->newlib_st_nlink = cpu_to_be16(s->st_nlink);
- p->newlib_st_uid = cpu_to_be16(s->st_uid);
- p->newlib_st_gid = cpu_to_be16(s->st_gid);
- p->newlib_st_rdev = cpu_to_be16(s->st_rdev);
- p->newlib_st_size = cpu_to_be32(s->st_size);
- p->newlib_st_atime = cpu_to_be32(s->st_atime);
- p->newlib_st_mtime = cpu_to_be32(s->st_mtime);
- p->newlib_st_ctime = cpu_to_be32(s->st_ctime);
- unlock_user(p, addr, sizeof(struct newlib_stat));
-
- return 1;
-}
-
-bool lm32_cpu_do_semihosting(CPUState *cs)
-{
- LM32CPU *cpu = LM32_CPU(cs);
- CPULM32State *env = &cpu->env;
-
- int ret = -1;
- target_ulong nr, arg0, arg1, arg2;
- void *p;
- struct stat s;
-
- nr = env->regs[R_R8];
- arg0 = env->regs[R_R1];
- arg1 = env->regs[R_R2];
- arg2 = env->regs[R_R3];
-
- switch (nr) {
- case TARGET_SYS_exit:
- /* void _exit(int rc) */
- exit(arg0);
-
- case TARGET_SYS_open:
- /* int open(const char *pathname, int flags) */
- p = lock_user_string(arg0);
- if (!p) {
- ret = -1;
- } else {
- ret = open(p, translate_openflags(arg2));
- unlock_user(p, arg0, 0);
- }
- break;
-
- case TARGET_SYS_read:
- /* ssize_t read(int fd, const void *buf, size_t count) */
- p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
- if (!p) {
- ret = -1;
- } else {
- ret = read(arg0, p, arg2);
- unlock_user(p, arg1, arg2);
- }
- break;
-
- case TARGET_SYS_write:
- /* ssize_t write(int fd, const void *buf, size_t count) */
- p = lock_user(VERIFY_READ, arg1, arg2, 1);
- if (!p) {
- ret = -1;
- } else {
- ret = write(arg0, p, arg2);
- unlock_user(p, arg1, 0);
- }
- break;
-
- case TARGET_SYS_close:
- /* int close(int fd) */
- /* don't close stdin/stdout/stderr */
- if (arg0 > 2) {
- ret = close(arg0);
- } else {
- ret = 0;
- }
- break;
-
- case TARGET_SYS_lseek:
- /* off_t lseek(int fd, off_t offset, int whence */
- ret = lseek(arg0, arg1, arg2);
- break;
-
- case TARGET_SYS_stat:
- /* int stat(const char *path, struct stat *buf) */
- p = lock_user_string(arg0);
- if (!p) {
- ret = -1;
- } else {
- ret = stat(p, &s);
- unlock_user(p, arg0, 0);
- if (translate_stat(env, arg1, &s) == 0) {
- ret = -1;
- }
- }
- break;
-
- case TARGET_SYS_fstat:
- /* int stat(int fd, struct stat *buf) */
- ret = fstat(arg0, &s);
- if (ret == 0) {
- if (translate_stat(env, arg1, &s) == 0) {
- ret = -1;
- }
- }
- break;
-
- default:
- /* unhandled */
- return false;
- }
-
- env->regs[R_R1] = ret;
- return true;
-}
diff --git a/target/lm32/machine.c b/target/lm32/machine.c
deleted file mode 100644
index 365eaa2e47..0000000000
--- a/target/lm32/machine.c
+++ /dev/null
@@ -1,33 +0,0 @@
-#include "qemu/osdep.h"
-#include "cpu.h"
-#include "migration/cpu.h"
-
-static const VMStateDescription vmstate_env = {
- .name = "env",
- .version_id = 1,
- .minimum_version_id = 1,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32_ARRAY(regs, CPULM32State, 32),
- VMSTATE_UINT32(pc, CPULM32State),
- VMSTATE_UINT32(ie, CPULM32State),
- VMSTATE_UINT32(icc, CPULM32State),
- VMSTATE_UINT32(dcc, CPULM32State),
- VMSTATE_UINT32(cc, CPULM32State),
- VMSTATE_UINT32(eba, CPULM32State),
- VMSTATE_UINT32(dc, CPULM32State),
- VMSTATE_UINT32(deba, CPULM32State),
- VMSTATE_UINT32_ARRAY(bp, CPULM32State, 4),
- VMSTATE_UINT32_ARRAY(wp, CPULM32State, 4),
- VMSTATE_END_OF_LIST()
- }
-};
-
-const VMStateDescription vmstate_lm32_cpu = {
- .name = "cpu",
- .version_id = 1,
- .minimum_version_id = 1,
- .fields = (VMStateField[]) {
- VMSTATE_STRUCT(env, LM32CPU, 1, vmstate_env, CPULM32State),
- VMSTATE_END_OF_LIST()
- }
-};
diff --git a/target/lm32/meson.build b/target/lm32/meson.build
deleted file mode 100644
index ef0eef07f1..0000000000
--- a/target/lm32/meson.build
+++ /dev/null
@@ -1,15 +0,0 @@
-lm32_ss = ss.source_set()
-lm32_ss.add(files(
- 'cpu.c',
- 'gdbstub.c',
- 'helper.c',
- 'lm32-semi.c',
- 'op_helper.c',
- 'translate.c',
-))
-
-lm32_softmmu_ss = ss.source_set()
-lm32_softmmu_ss.add(files('machine.c'))
-
-target_arch += {'lm32': lm32_ss}
-target_softmmu_arch += {'lm32': lm32_softmmu_ss}
diff --git a/target/lm32/op_helper.c b/target/lm32/op_helper.c
deleted file mode 100644
index e39fcd5647..0000000000
--- a/target/lm32/op_helper.c
+++ /dev/null
@@ -1,148 +0,0 @@
-#include "qemu/osdep.h"
-#include "cpu.h"
-#include "exec/helper-proto.h"
-#include "qemu/host-utils.h"
-#include "qemu/main-loop.h"
-#include "sysemu/runstate.h"
-
-#include "hw/lm32/lm32_pic.h"
-#include "hw/char/lm32_juart.h"
-
-#include "exec/exec-all.h"
-#include "exec/cpu_ldst.h"
-
-#ifndef CONFIG_USER_ONLY
-#endif
-
-#if !defined(CONFIG_USER_ONLY)
-void raise_exception(CPULM32State *env, int index)
-{
- CPUState *cs = env_cpu(env);
-
- cs->exception_index = index;
- cpu_loop_exit(cs);
-}
-
-void HELPER(raise_exception)(CPULM32State *env, uint32_t index)
-{
- raise_exception(env, index);
-}
-
-void HELPER(hlt)(CPULM32State *env)
-{
- CPUState *cs = env_cpu(env);
-
- cs->halted = 1;
- cs->exception_index = EXCP_HLT;
- cpu_loop_exit(cs);
-}
-
-void HELPER(ill)(CPULM32State *env)
-{
-#ifndef CONFIG_USER_ONLY
- CPUState *cs = env_cpu(env);
- fprintf(stderr, "VM paused due to illegal instruction. "
- "Connect a debugger or switch to the monitor console "
- "to find out more.\n");
- vm_stop(RUN_STATE_PAUSED);
- cs->halted = 1;
- raise_exception(env, EXCP_HALTED);
-#endif
-}
-
-void HELPER(wcsr_bp)(CPULM32State *env, uint32_t bp, uint32_t idx)
-{
- uint32_t addr = bp & ~1;
-
- assert(idx < 4);
-
- env->bp[idx] = bp;
- lm32_breakpoint_remove(env, idx);
- if (bp & 1) {
- lm32_breakpoint_insert(env, idx, addr);
- }
-}
-
-void HELPER(wcsr_wp)(CPULM32State *env, uint32_t wp, uint32_t idx)
-{
- lm32_wp_t wp_type;
-
- assert(idx < 4);
-
- env->wp[idx] = wp;
-
- wp_type = lm32_wp_type(env->dc, idx);
- lm32_watchpoint_remove(env, idx);
- if (wp_type != LM32_WP_DISABLED) {
- lm32_watchpoint_insert(env, idx, wp, wp_type);
- }
-}
-
-void HELPER(wcsr_dc)(CPULM32State *env, uint32_t dc)
-{
- uint32_t old_dc;
- int i;
- lm32_wp_t old_type;
- lm32_wp_t new_type;
-
- old_dc = env->dc;
- env->dc = dc;
-
- for (i = 0; i < 4; i++) {
- old_type = lm32_wp_type(old_dc, i);
- new_type = lm32_wp_type(dc, i);
-
- if (old_type != new_type) {
- lm32_watchpoint_remove(env, i);
- if (new_type != LM32_WP_DISABLED) {
- lm32_watchpoint_insert(env, i, env->wp[i], new_type);
- }
- }
- }
-}
-
-void HELPER(wcsr_im)(CPULM32State *env, uint32_t im)
-{
- qemu_mutex_lock_iothread();
- lm32_pic_set_im(env->pic_state, im);
- qemu_mutex_unlock_iothread();
-}
-
-void HELPER(wcsr_ip)(CPULM32State *env, uint32_t im)
-{
- qemu_mutex_lock_iothread();
- lm32_pic_set_ip(env->pic_state, im);
- qemu_mutex_unlock_iothread();
-}
-
-void HELPER(wcsr_jtx)(CPULM32State *env, uint32_t jtx)
-{
- lm32_juart_set_jtx(env->juart_state, jtx);
-}
-
-void HELPER(wcsr_jrx)(CPULM32State *env, uint32_t jrx)
-{
- lm32_juart_set_jrx(env->juart_state, jrx);
-}
-
-uint32_t HELPER(rcsr_im)(CPULM32State *env)
-{
- return lm32_pic_get_im(env->pic_state);
-}
-
-uint32_t HELPER(rcsr_ip)(CPULM32State *env)
-{
- return lm32_pic_get_ip(env->pic_state);
-}
-
-uint32_t HELPER(rcsr_jtx)(CPULM32State *env)
-{
- return lm32_juart_get_jtx(env->juart_state);
-}
-
-uint32_t HELPER(rcsr_jrx)(CPULM32State *env)
-{
- return lm32_juart_get_jrx(env->juart_state);
-}
-#endif
-
diff --git a/target/lm32/translate.c b/target/lm32/translate.c
deleted file mode 100644
index 20c70d03f1..0000000000
--- a/target/lm32/translate.c
+++ /dev/null
@@ -1,1237 +0,0 @@
-/*
- * LatticeMico32 main translation routines.
- *
- * Copyright (c) 2010 Michael Walle <michael@walle.cc>
- *
- * 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 2.1 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 "qemu/osdep.h"
-#include "cpu.h"
-#include "disas/disas.h"
-#include "exec/helper-proto.h"
-#include "exec/exec-all.h"
-#include "exec/translator.h"
-#include "tcg/tcg-op.h"
-#include "qemu/qemu-print.h"
-
-#include "exec/cpu_ldst.h"
-#include "hw/lm32/lm32_pic.h"
-
-#include "exec/helper-gen.h"
-
-#include "trace-tcg.h"
-#include "exec/log.h"
-
-
-#define DISAS_LM32 0
-
-#define LOG_DIS(...) \
- do { \
- if (DISAS_LM32) { \
- qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__); \
- } \
- } while (0)
-
-#define EXTRACT_FIELD(src, start, end) \
- (((src) >> start) & ((1 << (end - start + 1)) - 1))
-
-#define MEM_INDEX 0
-
-/* is_jmp field values */
-#define DISAS_JUMP DISAS_TARGET_0 /* only pc was modified dynamically */
-#define DISAS_UPDATE DISAS_TARGET_1 /* cpu state was modified dynamically */
-#define DISAS_TB_JUMP DISAS_TARGET_2 /* only pc was modified statically */
-
-static TCGv cpu_R[32];
-static TCGv cpu_pc;
-static TCGv cpu_ie;
-static TCGv cpu_icc;
-static TCGv cpu_dcc;
-static TCGv cpu_cc;
-static TCGv cpu_cfg;
-static TCGv cpu_eba;
-static TCGv cpu_dc;
-static TCGv cpu_deba;
-static TCGv cpu_bp[4];
-static TCGv cpu_wp[4];
-
-#include "exec/gen-icount.h"
-
-enum {
- OP_FMT_RI,
- OP_FMT_RR,
- OP_FMT_CR,
- OP_FMT_I
-};
-
-/* This is the state at translation time. */
-typedef struct DisasContext {
- target_ulong pc;
-
- /* Decoder. */
- int format;
- uint32_t ir;
- uint8_t opcode;
- uint8_t r0, r1, r2, csr;
- uint16_t imm5;
- uint16_t imm16;
- uint32_t imm26;
-
- unsigned int delayed_branch;
- unsigned int tb_flags, synced_flags; /* tb dependent flags. */
- int is_jmp;
-
- TranslationBlock *tb;
- int singlestep_enabled;
-
- uint32_t features;
- uint8_t num_breakpoints;
- uint8_t num_watchpoints;
-} DisasContext;
-
-static const char *regnames[] = {
- "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
- "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
- "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
- "r24", "r25", "r26/gp", "r27/fp", "r28/sp", "r29/ra",
- "r30/ea", "r31/ba", "bp0", "bp1", "bp2", "bp3", "wp0",
- "wp1", "wp2", "wp3"
-};
-
-static inline int zero_extend(unsigned int val, int width)
-{
- return val & ((1 << width) - 1);
-}
-
-static inline int sign_extend(unsigned int val, int width)
-{
- int sval;
-
- /* LSL. */
- val <<= 32 - width;
- sval = val;
- /* ASR. */
- sval >>= 32 - width;
-
- return sval;
-}
-
-static inline void t_gen_raise_exception(DisasContext *dc, uint32_t index)
-{
- TCGv_i32 tmp = tcg_const_i32(index);
-
- gen_helper_raise_exception(cpu_env, tmp);
- tcg_temp_free_i32(tmp);
-}
-
-static inline void t_gen_illegal_insn(DisasContext *dc)
-{
- tcg_gen_movi_tl(cpu_pc, dc->pc);
- gen_helper_ill(cpu_env);
-}
-
-static inline bool use_goto_tb(DisasContext *dc, target_ulong dest)
-{
- if (unlikely(dc->singlestep_enabled)) {
- return false;
- }
-
-#ifndef CONFIG_USER_ONLY
- return (dc->tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK);
-#else
- return true;
-#endif
-}
-
-static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest)
-{
- if (use_goto_tb(dc, dest)) {
- tcg_gen_goto_tb(n);
- tcg_gen_movi_tl(cpu_pc, dest);
- tcg_gen_exit_tb(dc->tb, n);
- } else {
- tcg_gen_movi_tl(cpu_pc, dest);
- if (dc->singlestep_enabled) {
- t_gen_raise_exception(dc, EXCP_DEBUG);
- }
- tcg_gen_exit_tb(NULL, 0);
- }
-}
-
-static void dec_add(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- if (dc->r0 == R_R0) {
- if (dc->r1 == R_R0 && dc->imm16 == 0) {
- LOG_DIS("nop\n");
- } else {
- LOG_DIS("mvi r%d, %d\n", dc->r1, sign_extend(dc->imm16, 16));
- }
- } else {
- LOG_DIS("addi r%d, r%d, %d\n", dc->r1, dc->r0,
- sign_extend(dc->imm16, 16));
- }
- } else {
- LOG_DIS("add r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- if (dc->format == OP_FMT_RI) {
- tcg_gen_addi_tl(cpu_R[dc->r1], cpu_R[dc->r0],
- sign_extend(dc->imm16, 16));
- } else {
- tcg_gen_add_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
- }
-}
-
-static void dec_and(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("andi r%d, r%d, %d\n", dc->r1, dc->r0,
- zero_extend(dc->imm16, 16));
- } else {
- LOG_DIS("and r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- if (dc->format == OP_FMT_RI) {
- tcg_gen_andi_tl(cpu_R[dc->r1], cpu_R[dc->r0],
- zero_extend(dc->imm16, 16));
- } else {
- if (dc->r0 == 0 && dc->r1 == 0 && dc->r2 == 0) {
- tcg_gen_movi_tl(cpu_pc, dc->pc + 4);
- gen_helper_hlt(cpu_env);
- } else {
- tcg_gen_and_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
- }
- }
-}
-
-static void dec_andhi(DisasContext *dc)
-{
- LOG_DIS("andhi r%d, r%d, %d\n", dc->r1, dc->r0, dc->imm16);
-
- tcg_gen_andi_tl(cpu_R[dc->r1], cpu_R[dc->r0], (dc->imm16 << 16));
-}
-
-static void dec_b(DisasContext *dc)
-{
- if (dc->r0 == R_RA) {
- LOG_DIS("ret\n");
- } else if (dc->r0 == R_EA) {
- LOG_DIS("eret\n");
- } else if (dc->r0 == R_BA) {
- LOG_DIS("bret\n");
- } else {
- LOG_DIS("b r%d\n", dc->r0);
- }
-
- /* restore IE.IE in case of an eret */
- if (dc->r0 == R_EA) {
- TCGv t0 = tcg_temp_new();
- TCGLabel *l1 = gen_new_label();
- tcg_gen_andi_tl(t0, cpu_ie, IE_EIE);
- tcg_gen_ori_tl(cpu_ie, cpu_ie, IE_IE);
- tcg_gen_brcondi_tl(TCG_COND_EQ, t0, IE_EIE, l1);
- tcg_gen_andi_tl(cpu_ie, cpu_ie, ~IE_IE);
- gen_set_label(l1);
- tcg_temp_free(t0);
- } else if (dc->r0 == R_BA) {
- TCGv t0 = tcg_temp_new();
- TCGLabel *l1 = gen_new_label();
- tcg_gen_andi_tl(t0, cpu_ie, IE_BIE);
- tcg_gen_ori_tl(cpu_ie, cpu_ie, IE_IE);
- tcg_gen_brcondi_tl(TCG_COND_EQ, t0, IE_BIE, l1);
- tcg_gen_andi_tl(cpu_ie, cpu_ie, ~IE_IE);
- gen_set_label(l1);
- tcg_temp_free(t0);
- }
- tcg_gen_mov_tl(cpu_pc, cpu_R[dc->r0]);
-
- dc->is_jmp = DISAS_JUMP;
-}
-
-static void dec_bi(DisasContext *dc)
-{
- LOG_DIS("bi %d\n", sign_extend(dc->imm26 << 2, 26));
-
- gen_goto_tb(dc, 0, dc->pc + (sign_extend(dc->imm26 << 2, 26)));
-
- dc->is_jmp = DISAS_TB_JUMP;
-}
-
-static inline void gen_cond_branch(DisasContext *dc, int cond)
-{
- TCGLabel *l1 = gen_new_label();
- tcg_gen_brcond_tl(cond, cpu_R[dc->r0], cpu_R[dc->r1], l1);
- gen_goto_tb(dc, 0, dc->pc + 4);
- gen_set_label(l1);
- gen_goto_tb(dc, 1, dc->pc + (sign_extend(dc->imm16 << 2, 16)));
- dc->is_jmp = DISAS_TB_JUMP;
-}
-
-static void dec_be(DisasContext *dc)
-{
- LOG_DIS("be r%d, r%d, %d\n", dc->r1, dc->r0,
- sign_extend(dc->imm16, 16) * 4);
-
- gen_cond_branch(dc, TCG_COND_EQ);
-}
-
-static void dec_bg(DisasContext *dc)
-{
- LOG_DIS("bg r%d, r%d, %d\n", dc->r1, dc->r0,
- sign_extend(dc->imm16, 16 * 4));
-
- gen_cond_branch(dc, TCG_COND_GT);
-}
-
-static void dec_bge(DisasContext *dc)
-{
- LOG_DIS("bge r%d, r%d, %d\n", dc->r1, dc->r0,
- sign_extend(dc->imm16, 16) * 4);
-
- gen_cond_branch(dc, TCG_COND_GE);
-}
-
-static void dec_bgeu(DisasContext *dc)
-{
- LOG_DIS("bgeu r%d, r%d, %d\n", dc->r1, dc->r0,
- sign_extend(dc->imm16, 16) * 4);
-
- gen_cond_branch(dc, TCG_COND_GEU);
-}
-
-static void dec_bgu(DisasContext *dc)
-{
- LOG_DIS("bgu r%d, r%d, %d\n", dc->r1, dc->r0,
- sign_extend(dc->imm16, 16) * 4);
-
- gen_cond_branch(dc, TCG_COND_GTU);
-}
-
-static void dec_bne(DisasContext *dc)
-{
- LOG_DIS("bne r%d, r%d, %d\n", dc->r1, dc->r0,
- sign_extend(dc->imm16, 16) * 4);
-
- gen_cond_branch(dc, TCG_COND_NE);
-}
-
-static void dec_call(DisasContext *dc)
-{
- LOG_DIS("call r%d\n", dc->r0);
-
- tcg_gen_movi_tl(cpu_R[R_RA], dc->pc + 4);
- tcg_gen_mov_tl(cpu_pc, cpu_R[dc->r0]);
-
- dc->is_jmp = DISAS_JUMP;
-}
-
-static void dec_calli(DisasContext *dc)
-{
- LOG_DIS("calli %d\n", sign_extend(dc->imm26, 26) * 4);
-
- tcg_gen_movi_tl(cpu_R[R_RA], dc->pc + 4);
- gen_goto_tb(dc, 0, dc->pc + (sign_extend(dc->imm26 << 2, 26)));
-
- dc->is_jmp = DISAS_TB_JUMP;
-}
-
-static inline void gen_compare(DisasContext *dc, int cond)
-{
- int i;
-
- if (dc->format == OP_FMT_RI) {
- switch (cond) {
- case TCG_COND_GEU:
- case TCG_COND_GTU:
- i = zero_extend(dc->imm16, 16);
- break;
- default:
- i = sign_extend(dc->imm16, 16);
- break;
- }
-
- tcg_gen_setcondi_tl(cond, cpu_R[dc->r1], cpu_R[dc->r0], i);
- } else {
- tcg_gen_setcond_tl(cond, cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
- }
-}
-
-static void dec_cmpe(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("cmpei r%d, r%d, %d\n", dc->r1, dc->r0,
- sign_extend(dc->imm16, 16));
- } else {
- LOG_DIS("cmpe r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- gen_compare(dc, TCG_COND_EQ);
-}
-
-static void dec_cmpg(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("cmpgi r%d, r%d, %d\n", dc->r1, dc->r0,
- sign_extend(dc->imm16, 16));
- } else {
- LOG_DIS("cmpg r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- gen_compare(dc, TCG_COND_GT);
-}
-
-static void dec_cmpge(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("cmpgei r%d, r%d, %d\n", dc->r1, dc->r0,
- sign_extend(dc->imm16, 16));
- } else {
- LOG_DIS("cmpge r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- gen_compare(dc, TCG_COND_GE);
-}
-
-static void dec_cmpgeu(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("cmpgeui r%d, r%d, %d\n", dc->r1, dc->r0,
- zero_extend(dc->imm16, 16));
- } else {
- LOG_DIS("cmpgeu r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- gen_compare(dc, TCG_COND_GEU);
-}
-
-static void dec_cmpgu(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("cmpgui r%d, r%d, %d\n", dc->r1, dc->r0,
- zero_extend(dc->imm16, 16));
- } else {
- LOG_DIS("cmpgu r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- gen_compare(dc, TCG_COND_GTU);
-}
-
-static void dec_cmpne(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("cmpnei r%d, r%d, %d\n", dc->r1, dc->r0,
- sign_extend(dc->imm16, 16));
- } else {
- LOG_DIS("cmpne r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- gen_compare(dc, TCG_COND_NE);
-}
-
-static void dec_divu(DisasContext *dc)
-{
- TCGLabel *l1;
-
- LOG_DIS("divu r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
-
- if (!(dc->features & LM32_FEATURE_DIVIDE)) {
- qemu_log_mask(LOG_GUEST_ERROR, "hardware divider is not available\n");
- t_gen_illegal_insn(dc);
- return;
- }
-
- l1 = gen_new_label();
- tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[dc->r1], 0, l1);
- tcg_gen_movi_tl(cpu_pc, dc->pc);
- t_gen_raise_exception(dc, EXCP_DIVIDE_BY_ZERO);
- gen_set_label(l1);
- tcg_gen_divu_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
-}
-
-static void dec_lb(DisasContext *dc)
-{
- TCGv t0;
-
- LOG_DIS("lb r%d, (r%d+%d)\n", dc->r1, dc->r0, dc->imm16);
-
- t0 = tcg_temp_new();
- tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
- tcg_gen_qemu_ld8s(cpu_R[dc->r1], t0, MEM_INDEX);
- tcg_temp_free(t0);
-}
-
-static void dec_lbu(DisasContext *dc)
-{
- TCGv t0;
-
- LOG_DIS("lbu r%d, (r%d+%d)\n", dc->r1, dc->r0, dc->imm16);
-
- t0 = tcg_temp_new();
- tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
- tcg_gen_qemu_ld8u(cpu_R[dc->r1], t0, MEM_INDEX);
- tcg_temp_free(t0);
-}
-
-static void dec_lh(DisasContext *dc)
-{
- TCGv t0;
-
- LOG_DIS("lh r%d, (r%d+%d)\n", dc->r1, dc->r0, dc->imm16);
-
- t0 = tcg_temp_new();
- tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
- tcg_gen_qemu_ld16s(cpu_R[dc->r1], t0, MEM_INDEX);
- tcg_temp_free(t0);
-}
-
-static void dec_lhu(DisasContext *dc)
-{
- TCGv t0;
-
- LOG_DIS("lhu r%d, (r%d+%d)\n", dc->r1, dc->r0, dc->imm16);
-
- t0 = tcg_temp_new();
- tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
- tcg_gen_qemu_ld16u(cpu_R[dc->r1], t0, MEM_INDEX);
- tcg_temp_free(t0);
-}
-
-static void dec_lw(DisasContext *dc)
-{
- TCGv t0;
-
- LOG_DIS("lw r%d, (r%d+%d)\n", dc->r1, dc->r0, sign_extend(dc->imm16, 16));
-
- t0 = tcg_temp_new();
- tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
- tcg_gen_qemu_ld32s(cpu_R[dc->r1], t0, MEM_INDEX);
- tcg_temp_free(t0);
-}
-
-static void dec_modu(DisasContext *dc)
-{
- TCGLabel *l1;
-
- LOG_DIS("modu r%d, r%d, %d\n", dc->r2, dc->r0, dc->r1);
-
- if (!(dc->features & LM32_FEATURE_DIVIDE)) {
- qemu_log_mask(LOG_GUEST_ERROR, "hardware divider is not available\n");
- t_gen_illegal_insn(dc);
- return;
- }
-
- l1 = gen_new_label();
- tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[dc->r1], 0, l1);
- tcg_gen_movi_tl(cpu_pc, dc->pc);
- t_gen_raise_exception(dc, EXCP_DIVIDE_BY_ZERO);
- gen_set_label(l1);
- tcg_gen_remu_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
-}
-
-static void dec_mul(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("muli r%d, r%d, %d\n", dc->r1, dc->r0,
- sign_extend(dc->imm16, 16));
- } else {
- LOG_DIS("mul r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- if (!(dc->features & LM32_FEATURE_MULTIPLY)) {
- qemu_log_mask(LOG_GUEST_ERROR,
- "hardware multiplier is not available\n");
- t_gen_illegal_insn(dc);
- return;
- }
-
- if (dc->format == OP_FMT_RI) {
- tcg_gen_muli_tl(cpu_R[dc->r1], cpu_R[dc->r0],
- sign_extend(dc->imm16, 16));
- } else {
- tcg_gen_mul_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
- }
-}
-
-static void dec_nor(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("nori r%d, r%d, %d\n", dc->r1, dc->r0,
- zero_extend(dc->imm16, 16));
- } else {
- LOG_DIS("nor r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- if (dc->format == OP_FMT_RI) {
- TCGv t0 = tcg_temp_new();
- tcg_gen_movi_tl(t0, zero_extend(dc->imm16, 16));
- tcg_gen_nor_tl(cpu_R[dc->r1], cpu_R[dc->r0], t0);
- tcg_temp_free(t0);
- } else {
- tcg_gen_nor_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
- }
-}
-
-static void dec_or(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("ori r%d, r%d, %d\n", dc->r1, dc->r0,
- zero_extend(dc->imm16, 16));
- } else {
- if (dc->r1 == R_R0) {
- LOG_DIS("mv r%d, r%d\n", dc->r2, dc->r0);
- } else {
- LOG_DIS("or r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
- }
-
- if (dc->format == OP_FMT_RI) {
- tcg_gen_ori_tl(cpu_R[dc->r1], cpu_R[dc->r0],
- zero_extend(dc->imm16, 16));
- } else {
- tcg_gen_or_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
- }
-}
-
-static void dec_orhi(DisasContext *dc)
-{
- if (dc->r0 == R_R0) {
- LOG_DIS("mvhi r%d, %d\n", dc->r1, dc->imm16);
- } else {
- LOG_DIS("orhi r%d, r%d, %d\n", dc->r1, dc->r0, dc->imm16);
- }
-
- tcg_gen_ori_tl(cpu_R[dc->r1], cpu_R[dc->r0], (dc->imm16 << 16));
-}
-
-static void dec_scall(DisasContext *dc)
-{
- switch (dc->imm5) {
- case 2:
- LOG_DIS("break\n");
- tcg_gen_movi_tl(cpu_pc, dc->pc);
- t_gen_raise_exception(dc, EXCP_BREAKPOINT);
- break;
- case 7:
- LOG_DIS("scall\n");
- tcg_gen_movi_tl(cpu_pc, dc->pc);
- t_gen_raise_exception(dc, EXCP_SYSTEMCALL);
- break;
- default:
- qemu_log_mask(LOG_GUEST_ERROR, "invalid opcode @0x%x", dc->pc);
- t_gen_illegal_insn(dc);
- break;
- }
-}
-
-static void dec_rcsr(DisasContext *dc)
-{
- LOG_DIS("rcsr r%d, %d\n", dc->r2, dc->csr);
-
- switch (dc->csr) {
- case CSR_IE:
- tcg_gen_mov_tl(cpu_R[dc->r2], cpu_ie);
- break;
- case CSR_IM:
- gen_helper_rcsr_im(cpu_R[dc->r2], cpu_env);
- break;
- case CSR_IP:
- gen_helper_rcsr_ip(cpu_R[dc->r2], cpu_env);
- break;
- case CSR_CC:
- tcg_gen_mov_tl(cpu_R[dc->r2], cpu_cc);
- break;
- case CSR_CFG:
- tcg_gen_mov_tl(cpu_R[dc->r2], cpu_cfg);
- break;
- case CSR_EBA:
- tcg_gen_mov_tl(cpu_R[dc->r2], cpu_eba);
- break;
- case CSR_DC:
- tcg_gen_mov_tl(cpu_R[dc->r2], cpu_dc);
- break;
- case CSR_DEBA:
- tcg_gen_mov_tl(cpu_R[dc->r2], cpu_deba);
- break;
- case CSR_JTX:
- gen_helper_rcsr_jtx(cpu_R[dc->r2], cpu_env);
- break;
- case CSR_JRX:
- gen_helper_rcsr_jrx(cpu_R[dc->r2], cpu_env);
- break;
- case CSR_ICC:
- case CSR_DCC:
- case CSR_BP0:
- case CSR_BP1:
- case CSR_BP2:
- case CSR_BP3:
- case CSR_WP0:
- case CSR_WP1:
- case CSR_WP2:
- case CSR_WP3:
- qemu_log_mask(LOG_GUEST_ERROR, "invalid read access csr=%x\n", dc->csr);
- break;
- default:
- qemu_log_mask(LOG_GUEST_ERROR, "read_csr: unknown csr=%x\n", dc->csr);
- break;
- }
-}
-
-static void dec_sb(DisasContext *dc)
-{
- TCGv t0;
-
- LOG_DIS("sb (r%d+%d), r%d\n", dc->r0, dc->imm16, dc->r1);
-
- t0 = tcg_temp_new();
- tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
- tcg_gen_qemu_st8(cpu_R[dc->r1], t0, MEM_INDEX);
- tcg_temp_free(t0);
-}
-
-static void dec_sextb(DisasContext *dc)
-{
- LOG_DIS("sextb r%d, r%d\n", dc->r2, dc->r0);
-
- if (!(dc->features & LM32_FEATURE_SIGN_EXTEND)) {
- qemu_log_mask(LOG_GUEST_ERROR,
- "hardware sign extender is not available\n");
- t_gen_illegal_insn(dc);
- return;
- }
-
- tcg_gen_ext8s_tl(cpu_R[dc->r2], cpu_R[dc->r0]);
-}
-
-static void dec_sexth(DisasContext *dc)
-{
- LOG_DIS("sexth r%d, r%d\n", dc->r2, dc->r0);
-
- if (!(dc->features & LM32_FEATURE_SIGN_EXTEND)) {
- qemu_log_mask(LOG_GUEST_ERROR,
- "hardware sign extender is not available\n");
- t_gen_illegal_insn(dc);
- return;
- }
-
- tcg_gen_ext16s_tl(cpu_R[dc->r2], cpu_R[dc->r0]);
-}
-
-static void dec_sh(DisasContext *dc)
-{
- TCGv t0;
-
- LOG_DIS("sh (r%d+%d), r%d\n", dc->r0, dc->imm16, dc->r1);
-
- t0 = tcg_temp_new();
- tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
- tcg_gen_qemu_st16(cpu_R[dc->r1], t0, MEM_INDEX);
- tcg_temp_free(t0);
-}
-
-static void dec_sl(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("sli r%d, r%d, %d\n", dc->r1, dc->r0, dc->imm5);
- } else {
- LOG_DIS("sl r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- if (!(dc->features & LM32_FEATURE_SHIFT)) {
- qemu_log_mask(LOG_GUEST_ERROR, "hardware shifter is not available\n");
- t_gen_illegal_insn(dc);
- return;
- }
-
- if (dc->format == OP_FMT_RI) {
- tcg_gen_shli_tl(cpu_R[dc->r1], cpu_R[dc->r0], dc->imm5);
- } else {
- TCGv t0 = tcg_temp_new();
- tcg_gen_andi_tl(t0, cpu_R[dc->r1], 0x1f);
- tcg_gen_shl_tl(cpu_R[dc->r2], cpu_R[dc->r0], t0);
- tcg_temp_free(t0);
- }
-}
-
-static void dec_sr(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("sri r%d, r%d, %d\n", dc->r1, dc->r0, dc->imm5);
- } else {
- LOG_DIS("sr r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- /* The real CPU (w/o hardware shifter) only supports right shift by exactly
- * one bit */
- if (dc->format == OP_FMT_RI) {
- if (!(dc->features & LM32_FEATURE_SHIFT) && (dc->imm5 != 1)) {
- qemu_log_mask(LOG_GUEST_ERROR,
- "hardware shifter is not available\n");
- t_gen_illegal_insn(dc);
- return;
- }
- tcg_gen_sari_tl(cpu_R[dc->r1], cpu_R[dc->r0], dc->imm5);
- } else {
- TCGLabel *l1 = gen_new_label();
- TCGLabel *l2 = gen_new_label();
- TCGv t0 = tcg_temp_local_new();
- tcg_gen_andi_tl(t0, cpu_R[dc->r1], 0x1f);
-
- if (!(dc->features & LM32_FEATURE_SHIFT)) {
- tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 1, l1);
- t_gen_illegal_insn(dc);
- tcg_gen_br(l2);
- }
-
- gen_set_label(l1);
- tcg_gen_sar_tl(cpu_R[dc->r2], cpu_R[dc->r0], t0);
- gen_set_label(l2);
-
- tcg_temp_free(t0);
- }
-}
-
-static void dec_sru(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("srui r%d, r%d, %d\n", dc->r1, dc->r0, dc->imm5);
- } else {
- LOG_DIS("sru r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- if (dc->format == OP_FMT_RI) {
- if (!(dc->features & LM32_FEATURE_SHIFT) && (dc->imm5 != 1)) {
- qemu_log_mask(LOG_GUEST_ERROR,
- "hardware shifter is not available\n");
- t_gen_illegal_insn(dc);
- return;
- }
- tcg_gen_shri_tl(cpu_R[dc->r1], cpu_R[dc->r0], dc->imm5);
- } else {
- TCGLabel *l1 = gen_new_label();
- TCGLabel *l2 = gen_new_label();
- TCGv t0 = tcg_temp_local_new();
- tcg_gen_andi_tl(t0, cpu_R[dc->r1], 0x1f);
-
- if (!(dc->features & LM32_FEATURE_SHIFT)) {
- tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 1, l1);
- t_gen_illegal_insn(dc);
- tcg_gen_br(l2);
- }
-
- gen_set_label(l1);
- tcg_gen_shr_tl(cpu_R[dc->r2], cpu_R[dc->r0], t0);
- gen_set_label(l2);
-
- tcg_temp_free(t0);
- }
-}
-
-static void dec_sub(DisasContext *dc)
-{
- LOG_DIS("sub r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
-
- tcg_gen_sub_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
-}
-
-static void dec_sw(DisasContext *dc)
-{
- TCGv t0;
-
- LOG_DIS("sw (r%d+%d), r%d\n", dc->r0, sign_extend(dc->imm16, 16), dc->r1);
-
- t0 = tcg_temp_new();
- tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
- tcg_gen_qemu_st32(cpu_R[dc->r1], t0, MEM_INDEX);
- tcg_temp_free(t0);
-}
-
-static void dec_user(DisasContext *dc)
-{
- LOG_DIS("user");
-
- qemu_log_mask(LOG_GUEST_ERROR, "user instruction undefined\n");
- t_gen_illegal_insn(dc);
-}
-
-static void dec_wcsr(DisasContext *dc)
-{
- int no;
-
- LOG_DIS("wcsr %d, r%d\n", dc->csr, dc->r1);
-
- switch (dc->csr) {
- case CSR_IE:
- tcg_gen_mov_tl(cpu_ie, cpu_R[dc->r1]);
- tcg_gen_movi_tl(cpu_pc, dc->pc + 4);
- dc->is_jmp = DISAS_UPDATE;
- break;
- case CSR_IM:
- /* mark as an io operation because it could cause an interrupt */
- if (tb_cflags(dc->tb) & CF_USE_ICOUNT) {
- gen_io_start();
- }
- gen_helper_wcsr_im(cpu_env, cpu_R[dc->r1]);
- tcg_gen_movi_tl(cpu_pc, dc->pc + 4);
- dc->is_jmp = DISAS_UPDATE;
- break;
- case CSR_IP:
- /* mark as an io operation because it could cause an interrupt */
- if (tb_cflags(dc->tb) & CF_USE_ICOUNT) {
- gen_io_start();
- }
- gen_helper_wcsr_ip(cpu_env, cpu_R[dc->r1]);
- tcg_gen_movi_tl(cpu_pc, dc->pc + 4);
- dc->is_jmp = DISAS_UPDATE;
- break;
- case CSR_ICC:
- /* TODO */
- break;
- case CSR_DCC:
- /* TODO */
- break;
- case CSR_EBA:
- tcg_gen_mov_tl(cpu_eba, cpu_R[dc->r1]);
- break;
- case CSR_DEBA:
- tcg_gen_mov_tl(cpu_deba, cpu_R[dc->r1]);
- break;
- case CSR_JTX:
- gen_helper_wcsr_jtx(cpu_env, cpu_R[dc->r1]);
- break;
- case CSR_JRX:
- gen_helper_wcsr_jrx(cpu_env, cpu_R[dc->r1]);
- break;
- case CSR_DC:
- gen_helper_wcsr_dc(cpu_env, cpu_R[dc->r1]);
- break;
- case CSR_BP0:
- case CSR_BP1:
- case CSR_BP2:
- case CSR_BP3:
- no = dc->csr - CSR_BP0;
- if (dc->num_breakpoints <= no) {
- qemu_log_mask(LOG_GUEST_ERROR,
- "breakpoint #%i is not available\n", no);
- t_gen_illegal_insn(dc);
- break;
- }
- gen_helper_wcsr_bp(cpu_env, cpu_R[dc->r1], tcg_const_i32(no));
- break;
- case CSR_WP0:
- case CSR_WP1:
- case CSR_WP2:
- case CSR_WP3:
- no = dc->csr - CSR_WP0;
- if (dc->num_watchpoints <= no) {
- qemu_log_mask(LOG_GUEST_ERROR,
- "watchpoint #%i is not available\n", no);
- t_gen_illegal_insn(dc);
- break;
- }
- gen_helper_wcsr_wp(cpu_env, cpu_R[dc->r1], tcg_const_i32(no));
- break;
- case CSR_CC:
- case CSR_CFG:
- qemu_log_mask(LOG_GUEST_ERROR, "invalid write access csr=%x\n",
- dc->csr);
- break;
- default:
- qemu_log_mask(LOG_GUEST_ERROR, "write_csr: unknown csr=%x\n",
- dc->csr);
- break;
- }
-}
-
-static void dec_xnor(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("xnori r%d, r%d, %d\n", dc->r1, dc->r0,
- zero_extend(dc->imm16, 16));
- } else {
- if (dc->r1 == R_R0) {
- LOG_DIS("not r%d, r%d\n", dc->r2, dc->r0);
- } else {
- LOG_DIS("xnor r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
- }
-
- if (dc->format == OP_FMT_RI) {
- tcg_gen_xori_tl(cpu_R[dc->r1], cpu_R[dc->r0],
- zero_extend(dc->imm16, 16));
- tcg_gen_not_tl(cpu_R[dc->r1], cpu_R[dc->r1]);
- } else {
- tcg_gen_eqv_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
- }
-}
-
-static void dec_xor(DisasContext *dc)
-{
- if (dc->format == OP_FMT_RI) {
- LOG_DIS("xori r%d, r%d, %d\n", dc->r1, dc->r0,
- zero_extend(dc->imm16, 16));
- } else {
- LOG_DIS("xor r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
- }
-
- if (dc->format == OP_FMT_RI) {
- tcg_gen_xori_tl(cpu_R[dc->r1], cpu_R[dc->r0],
- zero_extend(dc->imm16, 16));
- } else {
- tcg_gen_xor_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
- }
-}
-
-static void dec_ill(DisasContext *dc)
-{
- qemu_log_mask(LOG_GUEST_ERROR, "invalid opcode 0x%02x\n", dc->opcode);
- t_gen_illegal_insn(dc);
-}
-
-typedef void (*DecoderInfo)(DisasContext *dc);
-static const DecoderInfo decinfo[] = {
- dec_sru, dec_nor, dec_mul, dec_sh, dec_lb, dec_sr, dec_xor, dec_lh,
- dec_and, dec_xnor, dec_lw, dec_lhu, dec_sb, dec_add, dec_or, dec_sl,
- dec_lbu, dec_be, dec_bg, dec_bge, dec_bgeu, dec_bgu, dec_sw, dec_bne,
- dec_andhi, dec_cmpe, dec_cmpg, dec_cmpge, dec_cmpgeu, dec_cmpgu, dec_orhi,
- dec_cmpne,
- dec_sru, dec_nor, dec_mul, dec_divu, dec_rcsr, dec_sr, dec_xor, dec_ill,
- dec_and, dec_xnor, dec_ill, dec_scall, dec_sextb, dec_add, dec_or, dec_sl,
- dec_b, dec_modu, dec_sub, dec_user, dec_wcsr, dec_ill, dec_call, dec_sexth,
- dec_bi, dec_cmpe, dec_cmpg, dec_cmpge, dec_cmpgeu, dec_cmpgu, dec_calli,
- dec_cmpne
-};
-
-static inline void decode(DisasContext *dc, uint32_t ir)
-{
- dc->ir = ir;
- LOG_DIS("%8.8x\t", dc->ir);
-
- dc->opcode = EXTRACT_FIELD(ir, 26, 31);
-
- dc->imm5 = EXTRACT_FIELD(ir, 0, 4);
- dc->imm16 = EXTRACT_FIELD(ir, 0, 15);
- dc->imm26 = EXTRACT_FIELD(ir, 0, 25);
-
- dc->csr = EXTRACT_FIELD(ir, 21, 25);
- dc->r0 = EXTRACT_FIELD(ir, 21, 25);
- dc->r1 = EXTRACT_FIELD(ir, 16, 20);
- dc->r2 = EXTRACT_FIELD(ir, 11, 15);
-
- /* bit 31 seems to indicate insn type. */
- if (ir & (1 << 31)) {
- dc->format = OP_FMT_RR;
- } else {
- dc->format = OP_FMT_RI;
- }
-
- assert(ARRAY_SIZE(decinfo) == 64);
- assert(dc->opcode < 64);
-
- decinfo[dc->opcode](dc);
-}
-
-/* generate intermediate code for basic block 'tb'. */
-void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns)
-{
- CPULM32State *env = cs->env_ptr;
- LM32CPU *cpu = env_archcpu(env);
- struct DisasContext ctx, *dc = &ctx;
- uint32_t pc_start;
- uint32_t page_start;
- int num_insns;
-
- pc_start = tb->pc;
- dc->features = cpu->features;
- dc->num_breakpoints = cpu->num_breakpoints;
- dc->num_watchpoints = cpu->num_watchpoints;
- dc->tb = tb;
-
- dc->is_jmp = DISAS_NEXT;
- dc->pc = pc_start;
- dc->singlestep_enabled = cs->singlestep_enabled;
-
- if (pc_start & 3) {
- qemu_log_mask(LOG_GUEST_ERROR,
- "unaligned PC=%x. Ignoring lowest bits.\n", pc_start);
- pc_start &= ~3;
- }
-
- page_start = pc_start & TARGET_PAGE_MASK;
- num_insns = 0;
-
- gen_tb_start(tb);
- do {
- tcg_gen_insn_start(dc->pc);
- num_insns++;
-
- if (unlikely(cpu_breakpoint_test(cs, dc->pc, BP_ANY))) {
- tcg_gen_movi_tl(cpu_pc, dc->pc);
- t_gen_raise_exception(dc, EXCP_DEBUG);
- dc->is_jmp = DISAS_UPDATE;
- /* The address covered by the breakpoint must be included in
- [tb->pc, tb->pc + tb->size) in order to for it to be
- properly cleared -- thus we increment the PC here so that
- the logic setting tb->size below does the right thing. */
- dc->pc += 4;
- break;
- }
-
- /* Pretty disas. */
- LOG_DIS("%8.8x:\t", dc->pc);
-
- if (num_insns == max_insns && (tb_cflags(tb) & CF_LAST_IO)) {
- gen_io_start();
- }
-
- decode(dc, cpu_ldl_code(env, dc->pc));
- dc->pc += 4;
- } while (!dc->is_jmp
- && !tcg_op_buf_full()
- && !cs->singlestep_enabled
- && !singlestep
- && (dc->pc - page_start < TARGET_PAGE_SIZE)
- && num_insns < max_insns);
-
-
- if (unlikely(cs->singlestep_enabled)) {
- if (dc->is_jmp == DISAS_NEXT) {
- tcg_gen_movi_tl(cpu_pc, dc->pc);
- }
- t_gen_raise_exception(dc, EXCP_DEBUG);
- } else {
- switch (dc->is_jmp) {
- case DISAS_NEXT:
- gen_goto_tb(dc, 1, dc->pc);
- break;
- default:
- case DISAS_JUMP:
- case DISAS_UPDATE:
- /* indicate that the hash table must be used
- to find the next TB */
- tcg_gen_exit_tb(NULL, 0);
- break;
- case DISAS_TB_JUMP:
- /* nothing more to generate */
- break;
- }
- }
-
- gen_tb_end(tb, num_insns);
-
- tb->size = dc->pc - pc_start;
- tb->icount = num_insns;
-
-#ifdef DEBUG_DISAS
- if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)
- && qemu_log_in_addr_range(pc_start)) {
- FILE *logfile = qemu_log_lock();
- qemu_log("\n");
- log_target_disas(cs, pc_start, dc->pc - pc_start);
- qemu_log_unlock(logfile);
- }
-#endif
-}
-
-void lm32_cpu_dump_state(CPUState *cs, FILE *f, int flags)
-{
- LM32CPU *cpu = LM32_CPU(cs);
- CPULM32State *env = &cpu->env;
- int i;
-
- if (!env) {
- return;
- }
-
- qemu_fprintf(f, "IN: PC=%x %s\n",
- env->pc, lookup_symbol(env->pc));
-
- qemu_fprintf(f, "ie=%8.8x (IE=%x EIE=%x BIE=%x) im=%8.8x ip=%8.8x\n",
- env->ie,
- (env->ie & IE_IE) ? 1 : 0,
- (env->ie & IE_EIE) ? 1 : 0,
- (env->ie & IE_BIE) ? 1 : 0,
- lm32_pic_get_im(env->pic_state),
- lm32_pic_get_ip(env->pic_state));
- qemu_fprintf(f, "eba=%8.8x deba=%8.8x\n",
- env->eba,
- env->deba);
-
- for (i = 0; i < 32; i++) {
- qemu_fprintf(f, "r%2.2d=%8.8x ", i, env->regs[i]);
- if ((i + 1) % 4 == 0) {
- qemu_fprintf(f, "\n");
- }
- }
- qemu_fprintf(f, "\n\n");
-}
-
-void restore_state_to_opc(CPULM32State *env, TranslationBlock *tb,
- target_ulong *data)
-{
- env->pc = data[0];
-}
-
-void lm32_translate_init(void)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(cpu_R); i++) {
- cpu_R[i] = tcg_global_mem_new(cpu_env,
- offsetof(CPULM32State, regs[i]),
- regnames[i]);
- }
-
- for (i = 0; i < ARRAY_SIZE(cpu_bp); i++) {
- cpu_bp[i] = tcg_global_mem_new(cpu_env,
- offsetof(CPULM32State, bp[i]),
- regnames[32+i]);
- }
-
- for (i = 0; i < ARRAY_SIZE(cpu_wp); i++) {
- cpu_wp[i] = tcg_global_mem_new(cpu_env,
- offsetof(CPULM32State, wp[i]),
- regnames[36+i]);
- }
-
- cpu_pc = tcg_global_mem_new(cpu_env,
- offsetof(CPULM32State, pc),
- "pc");
- cpu_ie = tcg_global_mem_new(cpu_env,
- offsetof(CPULM32State, ie),
- "ie");
- cpu_icc = tcg_global_mem_new(cpu_env,
- offsetof(CPULM32State, icc),
- "icc");
- cpu_dcc = tcg_global_mem_new(cpu_env,
- offsetof(CPULM32State, dcc),
- "dcc");
- cpu_cc = tcg_global_mem_new(cpu_env,
- offsetof(CPULM32State, cc),
- "cc");
- cpu_cfg = tcg_global_mem_new(cpu_env,
- offsetof(CPULM32State, cfg),
- "cfg");
- cpu_eba = tcg_global_mem_new(cpu_env,
- offsetof(CPULM32State, eba),
- "eba");
- cpu_dc = tcg_global_mem_new(cpu_env,
- offsetof(CPULM32State, dc),
- "dc");
- cpu_deba = tcg_global_mem_new(cpu_env,
- offsetof(CPULM32State, deba),
- "deba");
-}
-