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Re: [PATCH rc4 06/29] target/avr: Add defintions of AVR core types

From: Joaquin de Andres
Subject: Re: [PATCH rc4 06/29] target/avr: Add defintions of AVR core types
Date: Sun, 2 Feb 2020 16:40:23 +0100 
On 1/31/20 1:02 AM, Aleksandar Markovic wrote:

From: Michael Rolnik <address@hidden>

AVR core types are:

   - avr1
   - avr2
   - avr25
   - avr3
   - avr31
   - avr35
   - avr4
   - avr5
   - avr51
   - avr6
   - avrtiny
   - xmega2
   - xmega3
   - xmega4
   - xmega5
   - xmega6
   - xmega7

Each core type covers multiple AVR MCUs, mentioned in the comments
before definition of particular AVR core type (part of this patch).

AVR core type defines shared features that are valid for all AVR
MCUs belonging in that type.

[AM: Split a larger AVR introduction patch into logical units]
Suggested-by: Aleksandar Markovic <address@hidden>

Co-developed-by: Michael Rolnik <address@hidden>
Co-developed-by: Sarah Harris <address@hidden>
Signed-off-by: Michael Rolnik <address@hidden>
Signed-off-by: Sarah Harris <address@hidden>
Signed-off-by: Michael Rolnik <address@hidden>
Acked-by: Igor Mammedov <address@hidden>
Tested-by: Philippe Mathieu-Daudé <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
Signed-off-by: Aleksandar Markovic <address@hidden>
---
  target/avr/cpu.c | 601 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
  1 file changed, 601 insertions(+)

diff --git a/target/avr/cpu.c b/target/avr/cpu.c
index f41a887..e0ae055 100644
--- a/target/avr/cpu.c
+++ b/target/avr/cpu.c
@@ -215,3 +215,604 @@ static void avr_cpu_class_init(ObjectClass *oc, void 
*data)
      cc->gdb_num_core_regs = 35;
      cc->gdb_core_xml_file = "avr-cpu.xml";
  }
+
+/*
+ * Setting features of AVR core type avr1
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * at90s1200, attiny11, attiny12, attiny15, attiny28
+ */
+static void avr_avr1_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+}
+
+/*
+ * Setting features of AVR core type avr2
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * at90s2313, at90s2323, at90s2333, at90s2343, attiny22, attiny26, at90s4414,
+ * at90s4433, at90s4434, at90s8515, at90c8534, at90s8535
+ */
+static void avr_avr2_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+}
+
+/*
+ * Setting features of AVR core type avr25
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * ata5272, ata6616c, attiny13, attiny13a, attiny2313, attiny2313a, attiny24,
+ * attiny24a, attiny4313, attiny44, attiny44a, attiny441, attiny84, attiny84a,
+ * attiny25, attiny45, attiny85, attiny261, attiny261a, attiny461, attiny461a,
+ * attiny861, attiny861a, attiny43u, attiny87, attiny48, attiny88, attiny828,
+ * attiny841, at86rf401
+ */
+static void avr_avr25_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_LPMX);
+    set_avr_feature(env, AVR_FEATURE_MOVW);
+}
+
+/*
+ * Setting features of AVR core type avr3
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * at43usb355, at76c711
+ */
+static void avr_avr3_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_JMP_CALL);
+}
+
+/*
+ * Setting features of AVR core type avr31
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * atmega103, at43usb320
+ */
+static void avr_avr31_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_RAMPZ);
+    set_avr_feature(env, AVR_FEATURE_ELPM);
+    set_avr_feature(env, AVR_FEATURE_JMP_CALL);
+}
+
+/*
+ * Setting features of AVR core type avr35
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * ata5505, ata6617c, ata664251, at90usb82, at90usb162, atmega8u2, atmega16u2,
+ * atmega32u2, attiny167, attiny1634
+ */
+static void avr_avr35_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_JMP_CALL);
+    set_avr_feature(env, AVR_FEATURE_LPMX);
+    set_avr_feature(env, AVR_FEATURE_MOVW);
+}
+
+/*
+ * Setting features of AVR core type avr4
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * ata6285, ata6286, ata6289, ata6612c, atmega8, atmega8a, atmega48, atmega48a,
+ * atmega48p, atmega48pa, atmega48pb, atmega88, atmega88a, atmega88p,
+ * atmega88pa, atmega88pb, atmega8515, atmega8535, atmega8hva, at90pwm1,
+ * at90pwm2, at90pwm2b, at90pwm3, at90pwm3b, at90pwm81
+ */
+static void avr_avr4_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_LPMX);
+    set_avr_feature(env, AVR_FEATURE_MOVW);
+    set_avr_feature(env, AVR_FEATURE_MUL);
+}
+
+/*
+ * Setting features of AVR core type avr5
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * ata5702m322, ata5782, ata5790, ata5790n, ata5791, ata5795, ata5831, 
ata6613c,
+ * ata6614q, ata8210, ata8510, atmega16, atmega16a, atmega161, atmega162,
+ * atmega163, atmega164a, atmega164p, atmega164pa, atmega165, atmega165a,
+ * atmega165p, atmega165pa, atmega168, atmega168a, atmega168p, atmega168pa,
+ * atmega168pb, atmega169, atmega169a, atmega169p, atmega169pa, atmega16hvb,
+ * atmega16hvbrevb, atmega16m1, atmega16u4, atmega32a, atmega32, atmega323,
+ * atmega324a, atmega324p, atmega324pa, atmega325, atmega325a, atmega325p,
+ * atmega325pa, atmega3250, atmega3250a, atmega3250p, atmega3250pa, atmega328,
+ * atmega328p, atmega328pb, atmega329, atmega329a, atmega329p, atmega329pa,
+ * atmega3290, atmega3290a, atmega3290p, atmega3290pa, atmega32c1, atmega32m1,
+ * atmega32u4, atmega32u6, atmega406, atmega64, atmega64a, atmega640, 
atmega644,
+ * atmega644a, atmega644p, atmega644pa, atmega645, atmega645a, atmega645p,
+ * atmega6450, atmega6450a, atmega6450p, atmega649, atmega649a, atmega649p,
+ * atmega6490, atmega16hva, atmega16hva2, atmega32hvb, atmega6490a, 
atmega6490p,
+ * atmega64c1, atmega64m1, atmega64hve, atmega64hve2, atmega64rfr2,
+ * atmega644rfr2, atmega32hvbrevb, at90can32, at90can64, at90pwm161, 
at90pwm216,
+ * at90pwm316, at90scr100, at90usb646, at90usb647, at94k, m3000
+ */
+static void avr_avr5_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_JMP_CALL);
+    set_avr_feature(env, AVR_FEATURE_LPMX);
+    set_avr_feature(env, AVR_FEATURE_MOVW);
+    set_avr_feature(env, AVR_FEATURE_MUL);
+}
+
+/*
+ * Setting features of AVR core type avr51
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * atmega128, atmega128a, atmega1280, atmega1281, atmega1284, atmega1284p,
+ * atmega128rfa1, atmega128rfr2, atmega1284rfr2, at90can128, at90usb1286,
+ * at90usb1287
+ */
+static void avr_avr51_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_RAMPZ);
+    set_avr_feature(env, AVR_FEATURE_ELPMX);
+    set_avr_feature(env, AVR_FEATURE_ELPM);
+    set_avr_feature(env, AVR_FEATURE_JMP_CALL);
+    set_avr_feature(env, AVR_FEATURE_LPMX);
+    set_avr_feature(env, AVR_FEATURE_MOVW);
+    set_avr_feature(env, AVR_FEATURE_MUL);
+}
+
+/*
+ * Setting features of AVR core type avr6
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * atmega2560, atmega2561, atmega256rfr2, atmega2564rfr2
+ */
+static void avr_avr6_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_3_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_RAMPZ);
+    set_avr_feature(env, AVR_FEATURE_EIJMP_EICALL);
+    set_avr_feature(env, AVR_FEATURE_ELPMX);
+    set_avr_feature(env, AVR_FEATURE_ELPM);
+    set_avr_feature(env, AVR_FEATURE_JMP_CALL);
+    set_avr_feature(env, AVR_FEATURE_LPMX);
+    set_avr_feature(env, AVR_FEATURE_MOVW);
+    set_avr_feature(env, AVR_FEATURE_MUL);
+}
+
+/*
+ * Setting features of AVR core type avrtiny
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * attiny4, attiny5, attiny9, attiny10, attiny20, attiny40
+ */
+static void avr_avrtiny_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_1_BYTE_SP);
+}
+
+/*
+ * Setting features of AVR core type xmega2
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * atxmega8e5, atxmega16a4, atxmega16d4, atxmega16e5, atxmega32a4, atxmega32c3,
+ * atxmega32d3, atxmega32d4, atxmega16a4u, atxmega16c4, atxmega32a4u,
+ * atxmega32c4, atxmega32e5
+ */
+static void avr_xmega2_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_JMP_CALL);
+    set_avr_feature(env, AVR_FEATURE_LPMX);
+    set_avr_feature(env, AVR_FEATURE_MOVW);
+    set_avr_feature(env, AVR_FEATURE_MUL);
+    set_avr_feature(env, AVR_FEATURE_RMW);
+}
+
+/*
+ * Setting features of AVR core type xmega3
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * attiny212, attiny214, attiny412, attiny414, attiny416, attiny417, attiny814,
+ * attiny816, attiny817, attiny1614, attiny1616, attiny1617, attiny3214,
+ * attiny3216, attiny3217, atmega808, atmega809, atmega1608, atmega1609,
+ * atmega3208, atmega3209, atmega4808, atmega4809
+ */
+static void avr_xmega3_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_JMP_CALL);
+    set_avr_feature(env, AVR_FEATURE_LPMX);
+    set_avr_feature(env, AVR_FEATURE_MOVW);
+    set_avr_feature(env, AVR_FEATURE_MUL);
+    set_avr_feature(env, AVR_FEATURE_RMW);
+}
+
+/*
+ * Setting features of AVR core type xmega4
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * atxmega64a3, atxmega64d3, atxmega64a3u, atxmega64a4u, atxmega64b1,
+ * atxmega64b3, atxmega64c3, atxmega64d4
+ */
+static void avr_xmega4_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_ELPMX);
+    set_avr_feature(env, AVR_FEATURE_ELPM);
+    set_avr_feature(env, AVR_FEATURE_JMP_CALL);
+    set_avr_feature(env, AVR_FEATURE_LPMX);
+    set_avr_feature(env, AVR_FEATURE_MOVW);
+    set_avr_feature(env, AVR_FEATURE_MUL);
+    set_avr_feature(env, AVR_FEATURE_RMW);
+}
+
+/*
+ * Setting features of AVR core type xmega5
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * atxmega64a1, atxmega64a1u
+ */
+static void avr_xmega5_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_RAMPD);
+    set_avr_feature(env, AVR_FEATURE_RAMPX);
+    set_avr_feature(env, AVR_FEATURE_RAMPY);
+    set_avr_feature(env, AVR_FEATURE_RAMPZ);
+    set_avr_feature(env, AVR_FEATURE_ELPMX);
+    set_avr_feature(env, AVR_FEATURE_ELPM);
+    set_avr_feature(env, AVR_FEATURE_JMP_CALL);
+    set_avr_feature(env, AVR_FEATURE_LPMX);
+    set_avr_feature(env, AVR_FEATURE_MOVW);
+    set_avr_feature(env, AVR_FEATURE_MUL);
+    set_avr_feature(env, AVR_FEATURE_RMW);
+}
+
+/*
+ * Setting features of AVR core type xmega6
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * atxmega128a3, atxmega128d3, atxmega192a3, atxmega192d3, atxmega256a3,
+ * atxmega256a3b, atxmega256a3bu, atxmega256d3, atxmega128a3u, atxmega128b1,
+ * atxmega128b3, atxmega128c3, atxmega128d4, atxmega192a3u, atxmega192c3,
+ * atxmega256a3u, atxmega256c3, atxmega384c3, atxmega384d3
+ */
+static void avr_xmega6_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_3_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_RAMPZ);
+    set_avr_feature(env, AVR_FEATURE_EIJMP_EICALL);
+    set_avr_feature(env, AVR_FEATURE_ELPMX);
+    set_avr_feature(env, AVR_FEATURE_ELPM);
+    set_avr_feature(env, AVR_FEATURE_JMP_CALL);
+    set_avr_feature(env, AVR_FEATURE_LPMX);
+    set_avr_feature(env, AVR_FEATURE_MOVW);
+    set_avr_feature(env, AVR_FEATURE_MUL);
+    set_avr_feature(env, AVR_FEATURE_RMW);
+}
+
+/*
+ * Setting features of AVR core type xmega7
+ * --------------------------------------
+ *
+ * This type of AVR core is present in the following AVR MCUs:
+ *
+ * atxmega128a1, atxmega128a1u, atxmega128a4u
+ */
+static void avr_xmega7_initfn(Object *obj)
+{
+    AVRCPU *cpu = AVR_CPU(obj);
+    CPUAVRState *env = &cpu->env;
+
+    set_avr_feature(env, AVR_FEATURE_LPM);
+    set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
+    set_avr_feature(env, AVR_FEATURE_ADIW_SBIW);
+    set_avr_feature(env, AVR_FEATURE_SRAM);
+    set_avr_feature(env, AVR_FEATURE_BREAK);
+
+    set_avr_feature(env, AVR_FEATURE_3_BYTE_PC);
+    set_avr_feature(env, AVR_FEATURE_2_BYTE_SP);
+    set_avr_feature(env, AVR_FEATURE_RAMPD);
+    set_avr_feature(env, AVR_FEATURE_RAMPX);
+    set_avr_feature(env, AVR_FEATURE_RAMPY);
+    set_avr_feature(env, AVR_FEATURE_RAMPZ);
+    set_avr_feature(env, AVR_FEATURE_EIJMP_EICALL);
+    set_avr_feature(env, AVR_FEATURE_ELPMX);
+    set_avr_feature(env, AVR_FEATURE_ELPM);
+    set_avr_feature(env, AVR_FEATURE_JMP_CALL);
+    set_avr_feature(env, AVR_FEATURE_LPMX);
+    set_avr_feature(env, AVR_FEATURE_MOVW);
+    set_avr_feature(env, AVR_FEATURE_MUL);
+    set_avr_feature(env, AVR_FEATURE_RMW);
+}
+
+typedef struct AVRCPUInfo {
+    const char *name;
+    void (*initfn)(Object *obj);
+} AVRCPUInfo;
+
+
+static void avr_cpu_list_entry(gpointer data, gpointer user_data)
+{
+    const char *typename = object_class_get_name(OBJECT_CLASS(data));
+
+    qemu_printf("%s\n", typename);
+}
+
+void avr_cpu_list(void)
+{
+    GSList *list;
+    list = object_class_get_list_sorted(TYPE_AVR_CPU, false);
+    g_slist_foreach(list, avr_cpu_list_entry, NULL);
+    g_slist_free(list);
+}
+
+#define DEFINE_AVR_CPU_TYPE(model, initfn) \
+    { \
+        .parent = TYPE_AVR_CPU, \
+        .instance_init = initfn, \
+        .name = AVR_CPU_TYPE_NAME(model), \
+    }
+
+static const TypeInfo avr_cpu_type_info[] = {
+    {
+        .name = TYPE_AVR_CPU,
+        .parent = TYPE_CPU,
+        .instance_size = sizeof(AVRCPU),
+        .instance_init = avr_cpu_initfn,
+        .class_size = sizeof(AVRCPUClass),
+        .class_init = avr_cpu_class_init,
+        .abstract = true,
+    },
+    DEFINE_AVR_CPU_TYPE("avrtiny", avr_avrtiny_initfn),
+    DEFINE_AVR_CPU_TYPE("avr1", avr_avr1_initfn),
+    DEFINE_AVR_CPU_TYPE("avr2", avr_avr2_initfn),
+    DEFINE_AVR_CPU_TYPE("avr25", avr_avr25_initfn),
+    DEFINE_AVR_CPU_TYPE("avr3", avr_avr3_initfn),
+    DEFINE_AVR_CPU_TYPE("avr31", avr_avr31_initfn),
+    DEFINE_AVR_CPU_TYPE("avr35", avr_avr35_initfn),
+    DEFINE_AVR_CPU_TYPE("avr4", avr_avr4_initfn),
+    DEFINE_AVR_CPU_TYPE("avr5", avr_avr5_initfn),
+    DEFINE_AVR_CPU_TYPE("avr51", avr_avr51_initfn),
+    DEFINE_AVR_CPU_TYPE("avr6", avr_avr6_initfn),
+    DEFINE_AVR_CPU_TYPE("xmega2", avr_xmega2_initfn),
+    DEFINE_AVR_CPU_TYPE("xmega3", avr_xmega3_initfn),
+    DEFINE_AVR_CPU_TYPE("xmega4", avr_xmega4_initfn),
+    DEFINE_AVR_CPU_TYPE("xmega5", avr_xmega5_initfn),
+    DEFINE_AVR_CPU_TYPE("xmega6", avr_xmega6_initfn),
+    DEFINE_AVR_CPU_TYPE("xmega7", avr_xmega7_initfn),
+};
+
+const char *avr_flags_to_cpu_type(uint32_t flags, const char *def_cpu_type)
+{
+    switch (flags & EF_AVR_MACH) {
+    case bfd_mach_avr1:
+        return AVR_CPU_TYPE_NAME("avr1");
+    case bfd_mach_avr2:
+        return AVR_CPU_TYPE_NAME("avr2");
+    case bfd_mach_avr25:
+        return AVR_CPU_TYPE_NAME("avr25");
+    case bfd_mach_avr3:
+        return AVR_CPU_TYPE_NAME("avr3");
+    case bfd_mach_avr31:
+        return AVR_CPU_TYPE_NAME("avr31");
+    case bfd_mach_avr35:
+        return AVR_CPU_TYPE_NAME("avr35");
+    case bfd_mach_avr4:
+        return AVR_CPU_TYPE_NAME("avr4");
+    case bfd_mach_avr5:
+        return AVR_CPU_TYPE_NAME("avr5");
+    case bfd_mach_avr51:
+        return AVR_CPU_TYPE_NAME("avr51");
+    case bfd_mach_avr6:
+        return AVR_CPU_TYPE_NAME("avr6");
+    case bfd_mach_avrtiny:
+        return AVR_CPU_TYPE_NAME("avrtiny");
+    case bfd_mach_avrxmega2:
+        return AVR_CPU_TYPE_NAME("xmega2");
+    case bfd_mach_avrxmega3:
+        return AVR_CPU_TYPE_NAME("xmega3");
+    case bfd_mach_avrxmega4:
+        return AVR_CPU_TYPE_NAME("xmega4");
+    case bfd_mach_avrxmega5:
+        return AVR_CPU_TYPE_NAME("xmega5");
+    case bfd_mach_avrxmega6:
+        return AVR_CPU_TYPE_NAME("xmega6");
+    case bfd_mach_avrxmega7:
+        return AVR_CPU_TYPE_NAME("xmega7");
+    default:
+        return def_cpu_type;
+    }
+}
+
+DEFINE_TYPES(avr_cpu_type_info)
Hi! me again. Following the RC2 discussion. I've being looking in the GCC definition of the architecture and as far as I can understand this definitions are the generic definitions of the arch families. 

 avr_arch_types[] =
 {
   /* unknown device specified */
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x0060, 0, 32, NULL, AVR_MMCU_DEFAULT }, 
   /*
     A  M  J  LM E  E  E  X  R  T  d S     FPO     S O   A
     S  U  M  PO L  L  I  M  A  I  a t     lMff    F ff  r
     M  L  P  MV P  P  J  E  M  N  t a     a s     R s   c
              XW M  M  M  G  P  Y  a r     s e       e   h
                    X  P  A  D       t     h t       t   ID   */
   { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x0060, 0,      32, "1",   "avr1"  },
   { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x0060, 0,      32, "2",   "avr2"  },
   { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0x0060, 0,      32, "25",  "avr25" },
   { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0x0060, 0,      32, "3",   "avr3"  },
   { 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0x0060, 0,      32, "31",  "avr31" },
   { 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0x0060, 0,      32, "35",  "avr35" },
   { 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0x0060, 0,      32, "4",   "avr4"  },
   { 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0x0060, 0,      32, "5",   "avr5"  },
   { 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0x0060, 0,      32, "51",  "avr51" },
   { 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0x0060, 0,      32, "6",   "avr6"  },

   { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0x0040, 0x4000, 0, "100", "avrtiny"},
   { 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0x2000, 0,      0, "102", "avrxmega2" },
   { 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0x2000, 0x8000, 0, "103", "avrxmega3" },
   { 0, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0x2000, 0,      0, "104", "avrxmega4" },
   { 0, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0x2000, 0,      0, "105", "avrxmega5" },
   { 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0x2000, 0,      0, "106", "avrxmega6" },
   { 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0x2000, 0,      0, "107", "avrxmega7"  }
 };

And then you have features for the specific microcontrollers:

 AVR_ISA_RMW
 AVR_SHORT_SP
 AVR_ERRATA_SKIP
 AVR_ISA_LDS
 AVR_ISA_RCALL
They are mixed in the file 'avr-mcus.def' for family and microcontroller definition. Only looking at the family definition:
AVR_MCU ("avr2", ARCH_AVR2, AVR_ERRATA_SKIP, NULL, 0x0060, 0x0, 0x60000, 0) AVR_MCU ("avr25", ARCH_AVR25, AVR_ISA_NONE, NULL, 0x0060, 0x0, 0x2000, 0) AVR_MCU ("avr3", ARCH_AVR3, AVR_ISA_NONE, NULL, 0x0060, 0x0, 0x6000, 0) AVR_MCU ("avr31", ARCH_AVR31, AVR_ERRATA_SKIP, NULL, 0x0060, 0x0, 0x20000, 0) AVR_MCU ("avr35", ARCH_AVR35, AVR_ISA_NONE, NULL, 0x0100, 0x0, 0x4000, 0) AVR_MCU ("avr4", ARCH_AVR4, AVR_ISA_NONE, NULL, 0x0060, 0x0, 0x2000, 0) AVR_MCU ("avr5", ARCH_AVR5, AVR_ISA_NONE, NULL, 0x0060, 0x0, 0x4000, 0) AVR_MCU ("avr51", ARCH_AVR51, AVR_ISA_NONE, NULL, 0x0100, 0x0, 0x20000, 0) AVR_MCU ("avr6", ARCH_AVR6, AVR_ISA_NONE, NULL, 0x0200, 0x0, 0x40000, 0) AVR_MCU ("avrxmega2", ARCH_AVRXMEGA2, AVR_ISA_NONE, NULL, 0x2000, 0x0, 0x9000, 0) AVR_MCU ("avrxmega3", ARCH_AVRXMEGA3, AVR_ISA_NONE, NULL, 0x3f00, 0x0, 0x8000, 0) AVR_MCU ("avrxmega4", ARCH_AVRXMEGA4, AVR_ISA_NONE, NULL, 0x2000, 0x0, 0x11000, 0) AVR_MCU ("avrxmega5", ARCH_AVRXMEGA5, AVR_ISA_NONE, NULL, 0x2000, 0x0, 0x11000, 0) AVR_MCU ("avrxmega6", ARCH_AVRXMEGA6, AVR_ISA_NONE, NULL, 0x2000, 0x0, 0x60000, 0) AVR_MCU ("avrxmega7", ARCH_AVRXMEGA7, AVR_ISA_NONE, NULL, 0x2000, 0x0, 0x22000, 0) AVR_MCU ("avrtiny", ARCH_AVRTINY, AVR_ISA_NONE, NULL, 0x0040, 0x0, 0x400, 0) AVR_MCU ("avr1", ARCH_AVR1, AVR_ISA_NONE, NULL, 0x0060, 0x0, 0x400, 0)
I don't really understand how do you get to the proposed family definition for qemu. Probably is my fault but if you can help me to understand will be grate! 

Regards,
--joa
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