[rc3,05/30] target/avr: Introduce AVR features
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Message ID 1580079311-20447-6-git-send-email-aleksandar.markovic@rt-rk.com
State New
Headers show
Series
  • target/avr merger
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Commit Message

Aleksandar Markovic Jan. 26, 2020, 10:54 p.m. UTC
From: Michael Rolnik <mrolnik@gmail.com>

This patch introduces anumeration "AVRFeature" that will be
used for defining AVR core types.

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>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com>
---
 target/avr/cpu.h | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

Patch
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diff --git a/target/avr/cpu.h b/target/avr/cpu.h
index b358e94..b74bcf0 100644
--- a/target/avr/cpu.h
+++ b/target/avr/cpu.h
@@ -69,6 +69,42 @@ 
 
 #define EF_AVR_MACH 0x7F
 
+typedef enum AVRFeature {
+    AVR_FEATURE_SRAM,
+
+    AVR_FEATURE_1_BYTE_PC,
+    AVR_FEATURE_2_BYTE_PC,
+    AVR_FEATURE_3_BYTE_PC,
+
+    AVR_FEATURE_1_BYTE_SP,
+    AVR_FEATURE_2_BYTE_SP,
+
+    AVR_FEATURE_BREAK,
+    AVR_FEATURE_DES,
+    AVR_FEATURE_RMW, /* Read Modify Write - XCH LAC LAS LAT */
+
+    AVR_FEATURE_EIJMP_EICALL,
+    AVR_FEATURE_IJMP_ICALL,
+    AVR_FEATURE_JMP_CALL,
+
+    AVR_FEATURE_ADIW_SBIW,
+
+    AVR_FEATURE_SPM,
+    AVR_FEATURE_SPMX,
+
+    AVR_FEATURE_ELPMX,
+    AVR_FEATURE_ELPM,
+    AVR_FEATURE_LPMX,
+    AVR_FEATURE_LPM,
+
+    AVR_FEATURE_MOVW,
+    AVR_FEATURE_MUL,
+    AVR_FEATURE_RAMPD,
+    AVR_FEATURE_RAMPX,
+    AVR_FEATURE_RAMPY,
+    AVR_FEATURE_RAMPZ,
+} AVRFeature;
+
 typedef struct CPUAVRState CPUAVRState;
 
 struct CPUAVRState {
@@ -125,6 +161,16 @@  hwaddr avr_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
 int avr_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
 int avr_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
 
+static inline int avr_feature(CPUAVRState *env, AVRFeature feature)
+{
+    return (env->features & (1U << feature)) != 0;
+}
+
+static inline void avr_set_feature(CPUAVRState *env, int feature)
+{
+    env->features |= (1U << feature);
+}
+
 #define cpu_list avr_cpu_list
 #define cpu_signal_handler cpu_avr_signal_handler
 #define cpu_mmu_index avr_cpu_mmu_index