From: Michael Rolnik <mrolnik@gmail.com>
To: Aleksandar Markovic <aleksandar.m.mail@gmail.com>
Cc: "thuth@redhat.com" <thuth@redhat.com>,
"me@xcancerberox.com.ar" <me@xcancerberox.com.ar>,
"richard.henderson@linaro.org" <richard.henderson@linaro.org>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"dovgaluk@ispras.ru" <dovgaluk@ispras.ru>,
"imammedo@redhat.com" <imammedo@redhat.com>,
"philmd@redhat.com" <philmd@redhat.com>
Subject: Re: [PATCH v37 05/17] target/avr: Add instruction translation - Arithmetic and Logic Instructions
Date: Sat, 30 Nov 2019 19:05:07 +0200 [thread overview]
Message-ID: <CAK4993gztHpfAViSboHQAio7oHMOoJk3gDr_T9w4e9mjA9avBA@mail.gmail.com> (raw)
In-Reply-To: <CAL1e-=i9ft-Py65fjuNt=TBFqw+EOerp9JBUsZa2i0wN8mAPJw@mail.gmail.com>
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Hi Aleksandar.
thanks for pointing that out I was not aware of that.
I can fix it.
Regards,
Michael Rolnik
On Sat, Nov 30, 2019 at 6:29 PM Aleksandar Markovic <
aleksandar.m.mail@gmail.com> wrote:
>
>
> On Saturday, November 30, 2019, Aleksandar Markovic <
> aleksandar.m.mail@gmail.com> wrote:
>
>>
>>
>> On Wednesday, November 27, 2019, Michael Rolnik <mrolnik@gmail.com>
>> wrote:
>>
>> +
>>> +
>>> +/*
>>> + * Performs the logical AND between the contents of register Rd and
>>> register
>>> + * Rr and places the result in the destination register Rd.
>>> + */
>>> +static bool trans_AND(DisasContext *ctx, arg_AND *a)
>>> +{
>>> + TCGv Rd = cpu_r[a->rd];
>>> + TCGv Rr = cpu_r[a->rr];
>>> + TCGv R = tcg_temp_new_i32();
>>> +
>>> + /* op */
>>> + tcg_gen_and_tl(R, Rd, Rr); /* Rd = Rd and Rr */
>>> +
>>> + /* Vf */
>>> + tcg_gen_movi_tl(cpu_Vf, 0); /* Vf = 0 */
>>> +
>>> + /* Zf */
>>> + tcg_gen_setcondi_tl(TCG_COND_EQ, cpu_Zf, R, 0); /* Zf = R == 0 */
>>> +
>>> + gen_ZNSf(R);
>>> +
>>> + /* R */
>>> + tcg_gen_mov_tl(Rd, R);
>>> +
>>> + tcg_temp_free_i32(R);
>>> +
>>> + return true;
>>> +}
>>> +
>>> +
>>>
>>
>> According to specs:
>>
>>
>> http://ww1.microchip.com/downloads/en/devicedoc/atmel-42505-8-bit-avr-microcontrollers-attiny102-attiny104_datasheet.pdf
>>
>> ... the chips in question have cores with 16 GPRs (that correspond to
>> GPRs R16-R31 of more common AVR cores with 32 GPRs).
>>
>>
> There are more examples;
>
>
> http://ww1.microchip.com/downloads/en/DeviceDoc/atmel-8127-avr-8-bit-microcontroller-attiny4-attiny5-attiny9-attiny10_datasheet.pdf
>
> Also ATtiny20, ATtiny40.
>
> How do you handle such cores?
>>
>> I don't see here anything preventing usage of all 32 GPRs, resulting, of
>> course, in an inaccurate emulation.
>>
>> Thanks,
>> Aleksandar
>>
>
--
Best Regards,
Michael Rolnik
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next prev parent reply other threads:[~2019-11-30 18:41 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-27 17:52 [PATCH v37 00/17] QEMU AVR 8 bit cores Michael Rolnik
2019-11-27 17:52 ` [PATCH v37 01/17] target/avr: Add outward facing interfaces and core CPU logic Michael Rolnik
2019-11-27 22:25 ` Philippe Mathieu-Daudé
2019-11-28 12:04 ` Michael Rolnik
2019-11-27 17:52 ` [PATCH v37 02/17] target/avr: Add instruction helpers Michael Rolnik
2019-11-27 22:26 ` Philippe Mathieu-Daudé
2019-11-27 17:52 ` [PATCH v37 03/17] target/avr: Add instruction decoding Michael Rolnik
2019-11-27 17:52 ` [PATCH v37 04/17] target/avr: Add instruction translation - Registers definition Michael Rolnik
2019-11-27 17:52 ` [PATCH v37 05/17] target/avr: Add instruction translation - Arithmetic and Logic Instructions Michael Rolnik
2019-11-30 10:33 ` Aleksandar Markovic
2019-11-30 16:29 ` Aleksandar Markovic
2019-11-30 17:05 ` Michael Rolnik [this message]
2019-11-30 17:14 ` Aleksandar Markovic
2019-11-30 23:11 ` Aleksandar Markovic
2019-12-02 7:41 ` Michael Rolnik
2019-12-02 8:55 ` Aleksandar Markovic
2019-12-02 9:01 ` Aleksandar Markovic
2019-11-27 17:52 ` [PATCH v37 06/17] target/avr: Add instruction translation - Branch Instructions Michael Rolnik
2019-11-27 17:52 ` [PATCH v37 07/17] target/avr: Add instruction translation - Bit and Bit-test Instructions Michael Rolnik
2019-12-05 12:28 ` Aleksandar Markovic
2019-12-05 13:17 ` Michael Rolnik
2019-12-05 13:28 ` Michael Rolnik
2019-11-27 17:52 ` [PATCH v37 08/17] target/avr: Add instruction translation - MCU Control Instructions Michael Rolnik
2019-11-27 17:52 ` [PATCH v37 09/17] target/avr: Add instruction translation - CPU main translation function Michael Rolnik
2019-11-27 17:52 ` [PATCH v37 10/17] target/avr: Add instruction disassembly function Michael Rolnik
2019-12-02 0:28 ` Aleksandar Markovic
2019-12-02 7:04 ` Michael Rolnik
2019-12-02 10:12 ` Aleksandar Markovic
2019-12-02 12:01 ` Aleksandar Markovic
2019-12-03 11:18 ` Philippe Mathieu-Daudé
2019-12-03 14:24 ` Michael Rolnik
2019-11-27 17:52 ` [PATCH v37 11/17] target/avr: Add limited support for USART and 16 bit timer peripherals Michael Rolnik
2019-11-27 17:52 ` [PATCH v37 12/17] target/avr: Add example board configuration Michael Rolnik
2019-11-30 10:49 ` Aleksandar Markovic
2019-11-30 16:57 ` Michael Rolnik
2019-12-03 11:29 ` Philippe Mathieu-Daudé
2019-11-27 17:52 ` [PATCH v37 13/17] target/avr: Register AVR support with the rest of QEMU Michael Rolnik
2019-12-05 12:55 ` Aleksandar Markovic
2019-11-27 17:52 ` [PATCH v37 14/17] target/avr: Update build system Michael Rolnik
2019-11-27 17:52 ` [PATCH v37 15/17] target/avr: Add boot serial test Michael Rolnik
2019-11-27 17:52 ` [PATCH v37 16/17] target/avr: Add Avocado test Michael Rolnik
2019-11-27 17:52 ` [PATCH v37 17/17] target/avr: Update MAINTAINERS file Michael Rolnik
2019-11-28 20:19 ` Philippe Mathieu-Daudé
2019-11-30 13:43 ` Aleksandar Markovic
2019-11-27 21:06 ` [PATCH v37 00/17] QEMU AVR 8 bit cores Aleksandar Markovic
2019-11-28 12:28 ` Michael Rolnik
2019-11-28 13:22 ` Aleksandar Markovic
2019-11-28 13:25 ` Michael Rolnik
2019-11-28 13:31 ` Aleksandar Markovic
2019-11-28 16:20 ` Alex Bennée
2019-11-28 19:32 ` Aleksandar Markovic
2019-11-29 22:49 ` Aleksandar Markovic
2019-11-29 23:52 ` Aleksandar Markovic
2019-11-28 13:34 ` Philippe Mathieu-Daudé
2019-11-28 13:41 ` Aleksandar Markovic
2019-11-28 13:46 ` Michael Rolnik
2019-11-28 14:16 ` Philippe Mathieu-Daudé
2019-11-28 14:50 ` Aleksandar Markovic
2019-11-28 18:09 ` Aleksandar Markovic
2019-12-01 13:09 ` Aleksandar Markovic
2019-12-01 13:11 ` Aleksandar Markovic
2019-11-29 9:24 ` Sarah Harris
2019-11-28 15:00 ` Aleksandar Markovic
2019-11-30 11:28 ` Aleksandar Markovic
2019-11-30 17:00 ` Michael Rolnik
2019-12-02 9:35 ` Aleksandar Markovic
2019-12-02 9:59 ` Aleksandar Markovic
2019-12-02 13:24 ` Michael Rolnik
2019-12-02 14:01 ` Aleksandar Markovic
2019-12-02 16:09 ` Michael Rolnik
2019-12-02 21:15 ` Aleksandar Markovic
2019-12-02 23:37 ` Aleksandar Markovic
2019-12-03 1:17 ` Aleksandar Markovic
2019-12-03 1:48 ` Aleksandar Markovic
2019-12-03 9:56 ` Michael Rolnik
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