From: Aleksandar Markovic <aleksandar.markovic@rt-rk.com>
To: qemu-devel@nongnu.org
Cc: Richard Henderson <richard.henderson@linaro.org>,
Michael Rolnik <mrolnik@gmail.com>,
Aleksandar Markovic <aleksandar.m.mail@gmail.com>
Subject: [PATCH rc4 13/29] target/avr: Add instruction translation - MCU Control Instructions
Date: Fri, 31 Jan 2020 01:02:57 +0100 [thread overview]
Message-ID: <1580428993-4767-14-git-send-email-aleksandar.markovic@rt-rk.com> (raw)
In-Reply-To: <1580428993-4767-1-git-send-email-aleksandar.markovic@rt-rk.com>
From: Michael Rolnik <mrolnik@gmail.com>
This includes:
- BREAK
- NOP
- SLEEP
- WDR
Signed-off-by: Michael Rolnik <mrolnik@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com>
---
target/avr/insn.decode | 8 ++++++
target/avr/translate.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 76 insertions(+)
diff --git a/target/avr/insn.decode b/target/avr/insn.decode
index 4ee5586..f8d32f2 100644
--- a/target/avr/insn.decode
+++ b/target/avr/insn.decode
@@ -172,3 +172,11 @@ BST 1111 101 rd:5 0 bit:3
BLD 1111 100 rd:5 0 bit:3
BSET 1001 0100 0 bit:3 1000
BCLR 1001 0100 1 bit:3 1000
+
+#
+# MCU Control Instructions
+#
+BREAK 1001 0101 1001 1000
+NOP 0000 0000 0000 0000
+SLEEP 1001 0101 1000 1000
+WDR 1001 0101 1010 1000
diff --git a/target/avr/translate.c b/target/avr/translate.c
index 58775af..4c68007 100644
--- a/target/avr/translate.c
+++ b/target/avr/translate.c
@@ -2681,3 +2681,71 @@ static bool trans_BCLR(DisasContext *ctx, arg_BCLR *a)
return true;
}
+
+/*
+ * MCU Control Instructions
+ */
+
+/*
+ * The BREAK instruction is used by the On-chip Debug system, and is
+ * normally not used in the application software. When the BREAK instruction is
+ * executed, the AVR CPU is set in the Stopped Mode. This gives the On-chip
+ * Debugger access to internal resources. If any Lock bits are set, or either
+ * the JTAGEN or OCDEN Fuses are unprogrammed, the CPU will treat the BREAK
+ * instruction as a NOP and will not enter the Stopped mode. This instruction
+ * is not available in all devices. Refer to the device specific instruction
+ * set summary.
+ */
+static bool trans_BREAK(DisasContext *ctx, arg_BREAK *a)
+{
+ if (!avr_have_feature(ctx, AVR_FEATURE_BREAK)) {
+ return true;
+ }
+
+#ifdef BREAKPOINT_ON_BREAK
+ tcg_gen_movi_tl(cpu_pc, ctx->npc - 1);
+ gen_helper_debug(cpu_env);
+ ctx->bstate = DISAS_EXIT;
+#else
+ /* NOP */
+#endif
+
+ return true;
+}
+
+
+/*
+ * This instruction performs a single cycle No Operation.
+ */
+static bool trans_NOP(DisasContext *ctx, arg_NOP *a)
+{
+
+ /* NOP */
+
+ return true;
+}
+
+
+/*
+ * This instruction sets the circuit in sleep mode defined by the MCU
+ * Control Register.
+ */
+static bool trans_SLEEP(DisasContext *ctx, arg_SLEEP *a)
+{
+ gen_helper_sleep(cpu_env);
+ ctx->bstate = DISAS_NORETURN;
+ return true;
+}
+
+
+/*
+ * This instruction resets the Watchdog Timer. This instruction must be
+ * executed within a limited time given by the WD prescaler. See the Watchdog
+ * Timer hardware specification.
+ */
+static bool trans_WDR(DisasContext *ctx, arg_WDR *a)
+{
+ gen_helper_wdr(cpu_env);
+
+ return true;
+}
--
2.7.4
next prev parent reply other threads:[~2020-01-31 0:12 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-31 0:02 [PATCH rc4 00/29] target/avr merger Aleksandar Markovic
2020-01-31 0:02 ` [PATCH rc4 01/29] target/avr: Add basic parameters for new AVR platform Aleksandar Markovic
2020-01-31 18:47 ` Aleksandar Markovic
2020-01-31 19:23 ` Aleksandar Markovic
2020-01-31 20:07 ` Aleksandar Markovic
2020-01-31 0:02 ` [PATCH rc4 02/29] target/avr: Introduce AVR CPU class object Aleksandar Markovic
2020-01-31 0:02 ` [PATCH rc4 03/29] target/avr: Add migration support Aleksandar Markovic
2020-01-31 0:02 ` [PATCH rc4 04/29] target/avr: Add GDB support Aleksandar Markovic
2020-01-31 0:02 ` [PATCH rc4 05/29] target/avr: Introduce enumeration AVRFeature Aleksandar Markovic
2020-01-31 0:02 ` [PATCH rc4 06/29] target/avr: Add defintions of AVR core types Aleksandar Markovic
2020-02-02 15:40 ` Joaquin de Andres
2020-02-08 7:35 ` Aleksandar Markovic
2020-02-10 7:39 ` Michael Rolnik
2020-02-21 11:03 ` Michael Rolnik
2020-02-21 15:31 ` Aleksandar Markovic
2020-02-27 8:38 ` Michael Rolnik
2020-03-06 13:34 ` Michael Rolnik
2020-06-16 8:56 ` Philippe Mathieu-Daudé
2020-06-29 9:51 ` Philippe Mathieu-Daudé
2020-01-31 0:02 ` [PATCH rc4 07/29] target/avr: Add instruction helpers Aleksandar Markovic
2020-02-01 12:27 ` Aleksandar Markovic
2020-01-31 0:02 ` [PATCH rc4 08/29] target/avr: Add instruction translation - Register definitions Aleksandar Markovic
2020-01-31 0:02 ` [PATCH rc4 09/29] target/avr: Add instruction translation - Arithmetic and Logic Instructions Aleksandar Markovic
2020-01-31 0:02 ` [PATCH rc4 10/29] target/avr: Add instruction translation - Branch Instructions Aleksandar Markovic
2020-01-31 0:02 ` [PATCH rc4 11/29] target/avr: Add instruction translation - Data Transfer Instructions Aleksandar Markovic
2020-01-31 0:02 ` [PATCH rc4 12/29] target/avr: Add instruction translation - Bit and Bit-test Instructions Aleksandar Markovic
2020-01-31 0:02 ` Aleksandar Markovic [this message]
2020-01-31 0:02 ` [PATCH rc4 14/29] target/avr: Add instruction translation - CPU main translation function Aleksandar Markovic
2020-01-31 0:02 ` [PATCH rc4 15/29] target/avr: Add instruction disassembly function Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 16/29] hw/char: Add limited support for AVR USART peripheral Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 17/29] hw/timer: Add limited support for AVR 16-bit timer peripheral Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 18/29] hw/misc: Add limited support for AVR power device Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 19/29] target/avr: Add section about AVR into QEMU documentation Aleksandar Markovic
2020-02-01 13:19 ` Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 20/29] target/avr: Register AVR support with the rest of QEMU Aleksandar Markovic
2020-01-31 0:23 ` Philippe Mathieu-Daudé
2020-01-31 0:27 ` Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 21/29] target/avr: Add machine none test Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 22/29] target/avr: Update MAINTAINERS file Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 23/29] hw/avr: Add helper to load raw/ELF firmware binaries Aleksandar Markovic
2020-01-31 0:20 ` Philippe Mathieu-Daudé
2020-01-31 0:26 ` Aleksandar Markovic
2020-01-31 0:28 ` Philippe Mathieu-Daudé
2020-01-31 0:30 ` Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 24/29] hw/avr: Add some ATmega microcontrollers Aleksandar Markovic
2020-01-31 1:56 ` Aleksandar Markovic
2020-01-31 3:09 ` Philippe Mathieu-Daudé
2020-01-31 3:45 ` Aleksandar Markovic
2020-01-31 4:11 ` Aleksandar Markovic
2020-01-31 9:35 ` Thomas Huth
2020-01-31 9:40 ` Aleksandar Markovic
2020-01-31 10:45 ` Philippe Mathieu-Daudé
2020-01-31 11:07 ` Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 25/29] hw/avr: Add some Arduino boards Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 26/29] target/avr: Update build system Aleksandar Markovic
2020-02-04 22:58 ` Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 27/29] tests/boot-serial-test: Test some Arduino boards (AVR based) Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 28/29] tests/acceptance: Test the Arduino MEGA2560 board Aleksandar Markovic
2020-01-31 0:03 ` [PATCH rc4 29/29] .travis.yml: Run the AVR acceptance tests Aleksandar Markovic
2020-01-31 0:12 ` [PATCH rc4 00/29] target/avr merger Aleksandar Markovic
2020-01-31 1:23 ` Philippe Mathieu-Daudé
2020-01-31 14:43 ` Michael Rolnik
2020-01-31 1:09 ` [PATCH 0/2] !fixup target/avr merger-rc4 Philippe Mathieu-Daudé
2020-01-31 1:09 ` [PATCH 1/2] !fixup "hw/misc: Add limited support for AVR power device" Philippe Mathieu-Daudé
2020-01-31 11:27 ` Alex Bennée
2020-01-31 12:39 ` Philippe Mathieu-Daudé
2020-01-31 14:52 ` Alex Bennée
2020-01-31 1:09 ` [PATCH 2/2] !fixup "hw/timer: Add limited support for AVR 16-bit timer peripheral" Philippe Mathieu-Daudé
2020-01-31 11:31 ` Alex Bennée
2020-01-31 1:12 ` [PATCH 0/2] !fixup target/avr merger-rc4 Aleksandar Markovic
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