diff options
Diffstat (limited to 'hw/misc/mos6522.c')
| -rw-r--r-- | hw/misc/mos6522.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/hw/misc/mos6522.c b/hw/misc/mos6522.c index cecf0be59e..10b85bf751 100644 --- a/hw/misc/mos6522.c +++ b/hw/misc/mos6522.c @@ -244,6 +244,9 @@ uint64_t mos6522_read(void *opaque, hwaddr addr, unsigned size) val = s->b; break; case VIA_REG_A: + qemu_log_mask(LOG_UNIMP, "Read access to register A with handshake"); + /* fall through */ + case VIA_REG_ANH: val = s->a; break; case VIA_REG_DIRB: @@ -297,9 +300,7 @@ uint64_t mos6522_read(void *opaque, hwaddr addr, unsigned size) val = s->ier | 0x80; break; default: - case VIA_REG_ANH: - val = s->anh; - break; + g_assert_not_reached(); } if (addr != VIA_REG_IFR || val != 0) { @@ -322,6 +323,9 @@ void mos6522_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) mdc->portB_write(s); break; case VIA_REG_A: + qemu_log_mask(LOG_UNIMP, "Write access to register A with handshake"); + /* fall through */ + case VIA_REG_ANH: s->a = (s->a & ~s->dira) | (val & s->dira); mdc->portA_write(s); break; @@ -395,9 +399,7 @@ void mos6522_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)); break; default: - case VIA_REG_ANH: - s->anh = val; - break; + g_assert_not_reached(); } } @@ -439,7 +441,6 @@ const VMStateDescription vmstate_mos6522 = { VMSTATE_UINT8(pcr, MOS6522State), VMSTATE_UINT8(ifr, MOS6522State), VMSTATE_UINT8(ier, MOS6522State), - VMSTATE_UINT8(anh, MOS6522State), VMSTATE_STRUCT_ARRAY(timers, MOS6522State, 2, 0, vmstate_mos6522_timer, MOS6522Timer), VMSTATE_END_OF_LIST() @@ -460,7 +461,6 @@ static void mos6522_reset(DeviceState *dev) s->ifr = 0; s->ier = 0; /* s->ier = T1_INT | SR_INT; */ - s->anh = 0; s->timers[0].frequency = s->frequency; s->timers[0].latch = 0xffff; |