[PATCH v2 07/12] mos6522: add register names to register read/write trace events

[Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>]

This helps to follow how the guest is programming the mos6522 when debugging.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/misc/mos6522.c    | 10 ++++++++--
 hw/misc/trace-events |  4 ++--
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/hw/misc/mos6522.c b/hw/misc/mos6522.c
index 093cc83dcf..aaae195d63 100644
--- a/hw/misc/mos6522.c
+++ b/hw/misc/mos6522.c
@@ -36,6 +36,12 @@
 #include "qemu/module.h"
 #include "trace.h"
 
+
+static const char *mos6522_reg_names[16] = {
+    "ORB", "ORA", "DDRB", "DDRA", "T1CL", "T1CH", "T1LL", "T1LH",
+    "T2CL", "T2CH", "SR", "ACR", "PCR", "IFR", "IER", "ANH"
+};
+
 /* XXX: implement all timer modes */
 
 static void mos6522_timer1_update(MOS6522State *s, MOS6522Timer *ti,
@@ -310,7 +316,7 @@ uint64_t mos6522_read(void *opaque, hwaddr addr, unsigned size)
     }
 
     if (addr != VIA_REG_IFR || val != 0) {
-        trace_mos6522_read(addr, val);
+        trace_mos6522_read(addr, mos6522_reg_names[addr], val);
     }
 
     return val;
@@ -321,7 +327,7 @@ void mos6522_write(void *opaque, hwaddr addr, uint64_t val, unsigned size)
     MOS6522State *s = opaque;
     MOS6522DeviceClass *mdc = MOS6522_GET_CLASS(s);
 
-    trace_mos6522_write(addr, val);
+    trace_mos6522_write(addr, mos6522_reg_names[addr], val);
 
     switch (addr) {
     case VIA_REG_B:
diff --git a/hw/misc/trace-events b/hw/misc/trace-events
index 1c373dd0a4..c1ea57de31 100644
--- a/hw/misc/trace-events
+++ b/hw/misc/trace-events
@@ -95,8 +95,8 @@ imx7_gpr_write(uint64_t offset, uint64_t value) "addr 0x%08" PRIx64 "value 0x%08
 mos6522_set_counter(int index, unsigned int val) "T%d.counter=%d"
 mos6522_get_next_irq_time(uint16_t latch, int64_t d, int64_t delta) "latch=%d counter=0x%"PRId64 " delta_next=0x%"PRId64
 mos6522_set_sr_int(void) "set sr_int"
-mos6522_write(uint64_t addr, uint64_t val) "reg=0x%"PRIx64 " val=0x%"PRIx64
-mos6522_read(uint64_t addr, unsigned val) "reg=0x%"PRIx64 " val=0x%x"
+mos6522_write(uint64_t addr, const char *name, uint64_t val) "reg=0x%"PRIx64 " [%s] val=0x%"PRIx64
+mos6522_read(uint64_t addr, const char *name, unsigned val) "reg=0x%"PRIx64 " [%s] val=0x%x"
 
 # npcm7xx_clk.c
 npcm7xx_clk_read(uint64_t offset, uint32_t value) " offset: 0x%04" PRIx64 " value: 0x%08" PRIx32
-- 
2.20.1