Hi Philippe.

It's been a while. let me think about it and get back to you. what is your
concern ?

Regards,
Michael Rolnik

On Mon, Mar 23, 2020 at 5:55 PM Philippe Mathieu-Daudé <philmd@redhat.com>
wrote:

> Hi Michael,
>
> On 1/18/20 8:13 PM, Michael Rolnik wrote:
> > This includes:
> > - CPU data structures
> > - object model classes and functions
> > - migration functions
> > - GDB hooks
> >
> > Co-developed-by: Michael Rolnik <mrolnik@gmail.com>
> > Co-developed-by: Sarah Harris <S.E.Harris@kent.ac.uk>
> > Signed-off-by: Michael Rolnik <mrolnik@gmail.com>
> > Signed-off-by: Sarah Harris <S.E.Harris@kent.ac.uk>
> > Signed-off-by: Michael Rolnik <mrolnik@gmail.com>
> > Acked-by: Igor Mammedov <imammedo@redhat.com>
> > Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> > ---
> >   target/avr/cpu-param.h |  37 ++
> >   target/avr/cpu-qom.h   |  54 +++
> >   target/avr/cpu.h       | 258 +++++++++++++
> >   target/avr/cpu.c       | 826 +++++++++++++++++++++++++++++++++++++++++
> >   target/avr/gdbstub.c   |  84 +++++
> >   target/avr/machine.c   | 121 ++++++
> >   gdb-xml/avr-cpu.xml    |  49 +++
> >   7 files changed, 1429 insertions(+)
> >   create mode 100644 target/avr/cpu-param.h
> >   create mode 100644 target/avr/cpu-qom.h
> >   create mode 100644 target/avr/cpu.h
> >   create mode 100644 target/avr/cpu.c
> >   create mode 100644 target/avr/gdbstub.c
> >   create mode 100644 target/avr/machine.c
> >   create mode 100644 gdb-xml/avr-cpu.xml
> >
> [...]> diff --git a/target/avr/cpu.c b/target/avr/cpu.c
> > new file mode 100644
> > index 0000000000..c74c5106fe
> > --- /dev/null
> > +++ b/target/avr/cpu.c
> > @@ -0,0 +1,826 @@
> > +/*
> > + * QEMU AVR CPU
> > + *
> > + * Copyright (c) 2019 Michael Rolnik
> > + *
> > + * 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 "exec/exec-all.h"
> > +#include "cpu.h"
> > +#include "disas/dis-asm.h"
> > +
> > +static void avr_cpu_set_pc(CPUState *cs, vaddr value)
> > +{
> > +    AVRCPU *cpu = AVR_CPU(cs);
> > +
> > +    cpu->env.pc_w = value / 2; /* internally PC points to words */
> > +}
> > +
> > +static bool avr_cpu_has_work(CPUState *cs)
> > +{
> > +    AVRCPU *cpu = AVR_CPU(cs);
> > +    CPUAVRState *env = &cpu->env;
> > +
> > +    return (cs->interrupt_request & (CPU_INTERRUPT_HARD |
> CPU_INTERRUPT_RESET))
> > +            && cpu_interrupts_enabled(env);
> > +}
> > +
> > +static void avr_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock
> *tb)
> > +{
> > +    AVRCPU *cpu = AVR_CPU(cs);
> > +    CPUAVRState *env = &cpu->env;
> > +
> > +    env->pc_w = tb->pc / 2; /* internally PC points to words */
> > +}
> > +
> > +static void avr_cpu_reset(CPUState *cs)
> > +{
> > +    AVRCPU *cpu = AVR_CPU(cs);
> > +    AVRCPUClass *mcc = AVR_CPU_GET_CLASS(cpu);
> > +    CPUAVRState *env = &cpu->env;
> > +
> > +    mcc->parent_reset(cs);
> > +
> > +    env->pc_w = 0;
> > +    env->sregI = 1;
> > +    env->sregC = 0;
> > +    env->sregZ = 0;
> > +    env->sregN = 0;
> > +    env->sregV = 0;
> > +    env->sregS = 0;
> > +    env->sregH = 0;
> > +    env->sregT = 0;
> > +
> > +    env->rampD = 0;
> > +    env->rampX = 0;
> > +    env->rampY = 0;
> > +    env->rampZ = 0;
> > +    env->eind = 0;
> > +    env->sp = 0;
> > +
> > +    env->skip = 0;
> > +
> > +    memset(env->r, 0, sizeof(env->r));
> > +
> > +    tlb_flush(cs);
>
> Why are you calling tlb_flush() here?
>
> > +}
>
>

-- 
Best Regards,
Michael Rolnik