| Message ID | 20231215200009.346212-9-mark.cave-ayland@ilande.co.uk (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | next-cube: various tidy-ups and improvements | expand |
Am Fri, 15 Dec 2023 20:00:05 +0000 schrieb Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>: > Ensure that the LED status is updated by calling next_scr2_led_update() whenever > the SC2 register is written. > > Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> > --- > hw/m68k/next-cube.c | 22 +++++++++++++--------- > 1 file changed, 13 insertions(+), 9 deletions(-) > > diff --git a/hw/m68k/next-cube.c b/hw/m68k/next-cube.c > index f2222554fa..7ffd1c412e 100644 > --- a/hw/m68k/next-cube.c > +++ b/hw/m68k/next-cube.c > @@ -123,6 +123,18 @@ static const uint8_t rtc_ram2[32] = { > #define SCR2_RTDATA 0x4 > #define SCR2_TOBCD(x) (((x / 10) << 4) + (x % 10)) > > +static void next_scr2_led_update(NeXTPC *s) > +{ > + if (s->scr2 & 0x1) { > + DPRINTF("fault!\n"); > + s->led++; > + if (s->led == 10) { > + DPRINTF("LED flashing, possible fault!\n"); > + s->led = 0; > + } > + } > +} This will now operate on the old value of scr2 ... > static void nextscr2_write(NeXTPC *s, uint32_t val, int size) > { > static uint8_t old_scr2; > @@ -135,15 +147,6 @@ static void nextscr2_write(NeXTPC *s, uint32_t val, int size) > scr2_2 = val & 0xFF; > } > > - if (val & 0x1) { > - DPRINTF("fault!\n"); > - s->led++; > - if (s->led == 10) { > - DPRINTF("LED flashing, possible fault!\n"); > - s->led = 0; > - } > - } .. while this was using the new value that was just written. So this looks wrong to me ... or do I miss something? Thomas > if (scr2_2 & 0x1) { > /* DPRINTF("RTC %x phase %i\n", scr2_2, rtc->phase); */ > if (rtc->phase == -1) { > @@ -318,6 +321,7 @@ static void next_mmio_write(void *opaque, hwaddr addr, uint64_t val, > break; > > case 0xd000 ... 0xd003: > + next_scr2_led_update(s); > nextscr2_write(s, val, size); > break; >
On 16/12/2023 20:13, Thomas Huth wrote: > Am Fri, 15 Dec 2023 20:00:05 +0000 > schrieb Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>: > >> Ensure that the LED status is updated by calling next_scr2_led_update() whenever >> the SC2 register is written. >> >> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> >> --- >> hw/m68k/next-cube.c | 22 +++++++++++++--------- >> 1 file changed, 13 insertions(+), 9 deletions(-) >> >> diff --git a/hw/m68k/next-cube.c b/hw/m68k/next-cube.c >> index f2222554fa..7ffd1c412e 100644 >> --- a/hw/m68k/next-cube.c >> +++ b/hw/m68k/next-cube.c >> @@ -123,6 +123,18 @@ static const uint8_t rtc_ram2[32] = { >> #define SCR2_RTDATA 0x4 >> #define SCR2_TOBCD(x) (((x / 10) << 4) + (x % 10)) >> >> +static void next_scr2_led_update(NeXTPC *s) >> +{ >> + if (s->scr2 & 0x1) { >> + DPRINTF("fault!\n"); >> + s->led++; >> + if (s->led == 10) { >> + DPRINTF("LED flashing, possible fault!\n"); >> + s->led = 0; >> + } >> + } >> +} > > This will now operate on the old value of scr2 ... > >> static void nextscr2_write(NeXTPC *s, uint32_t val, int size) >> { >> static uint8_t old_scr2; >> @@ -135,15 +147,6 @@ static void nextscr2_write(NeXTPC *s, uint32_t val, int size) >> scr2_2 = val & 0xFF; >> } >> >> - if (val & 0x1) { >> - DPRINTF("fault!\n"); >> - s->led++; >> - if (s->led == 10) { >> - DPRINTF("LED flashing, possible fault!\n"); >> - s->led = 0; >> - } >> - } > > .. while this was using the new value that was just written. > So this looks wrong to me ... or do I miss something? Oops no, I think you're right and it's an unintended change. I'll fix this before sending a v2 series. > Thomas > > >> if (scr2_2 & 0x1) { >> /* DPRINTF("RTC %x phase %i\n", scr2_2, rtc->phase); */ >> if (rtc->phase == -1) { >> @@ -318,6 +321,7 @@ static void next_mmio_write(void *opaque, hwaddr addr, uint64_t val, >> break; >> >> case 0xd000 ... 0xd003: >> + next_scr2_led_update(s); >> nextscr2_write(s, val, size); >> break; ATB, Mark.
diff --git a/hw/m68k/next-cube.c b/hw/m68k/next-cube.c index f2222554fa..7ffd1c412e 100644 --- a/hw/m68k/next-cube.c +++ b/hw/m68k/next-cube.c @@ -123,6 +123,18 @@ static const uint8_t rtc_ram2[32] = { #define SCR2_RTDATA 0x4 #define SCR2_TOBCD(x) (((x / 10) << 4) + (x % 10)) +static void next_scr2_led_update(NeXTPC *s) +{ + if (s->scr2 & 0x1) { + DPRINTF("fault!\n"); + s->led++; + if (s->led == 10) { + DPRINTF("LED flashing, possible fault!\n"); + s->led = 0; + } + } +} + static void nextscr2_write(NeXTPC *s, uint32_t val, int size) { static uint8_t old_scr2; @@ -135,15 +147,6 @@ static void nextscr2_write(NeXTPC *s, uint32_t val, int size) scr2_2 = val & 0xFF; } - if (val & 0x1) { - DPRINTF("fault!\n"); - s->led++; - if (s->led == 10) { - DPRINTF("LED flashing, possible fault!\n"); - s->led = 0; - } - } - if (scr2_2 & 0x1) { /* DPRINTF("RTC %x phase %i\n", scr2_2, rtc->phase); */ if (rtc->phase == -1) { @@ -318,6 +321,7 @@ static void next_mmio_write(void *opaque, hwaddr addr, uint64_t val, break; case 0xd000 ... 0xd003: + next_scr2_led_update(s); nextscr2_write(s, val, size); break;
Ensure that the LED status is updated by calling next_scr2_led_update() whenever the SC2 register is written. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> --- hw/m68k/next-cube.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-)