static void porta_changed(SH7750State * s, uint16_t prev)
{
uint16_t currenta, changes;
int i, r = 0;
#if 0
fprintf(stderr, "porta changed from 0x%04x to 0x%04x\n",
prev, porta_lines(s));
fprintf(stderr, "pdtra=0x%04x, pctra=0x%08x\n", s->pdtra, s->pctra);
#endif
currenta = porta_lines(s);
if (currenta == prev)
return;
changes = currenta ^ prev;
for (i = 0; i < NB_DEVICES; i++) {
if (s->devices[i] && (s->devices[i]->portamask_trigger & changes)) {
r |= s->devices[i]->port_change_cb(currenta, portb_lines(s),
&s->periph_pdtra,
&s->periph_portdira,
&s->periph_pdtrb,
&s->periph_portdirb);
}
}
if (r)
gen_port_interrupts(s);
}
static uint32_t sh7750_mem_readw(void *opaque, target_phys_addr_t addr)
{
SH7750State *s = opaque;
switch (addr) {
case SH7750_BCR2_A7:
return s->bcr2;
case SH7750_BCR3_A7:
if(!has_bcr3_and_bcr4(s))
error_access("word read", addr);
return s->bcr3;
case SH7750_FRQCR_A7:
return 0;
case SH7750_PCR_A7:
return s->pcr;
case SH7750_RFCR_A7:
fprintf(stderr,
"Read access to refresh count register, incrementing\n");
return s->rfcr++;
case SH7750_PDTRA_A7:
return porta_lines(s);
case SH7750_PDTRB_A7:
return portb_lines(s);
case SH7750_RTCOR_A7:
case SH7750_RTCNT_A7:
case SH7750_RTCSR_A7:
ignore_access("word read", addr);
return 0;
default:
error_access("word read", addr);
abort();
}
}
static void sh7750_mem_writew(void *opaque, target_phys_addr_t addr,
uint32_t mem_value)
{
SH7750State *s = opaque;
uint16_t temp;
switch (addr) {
/* SDRAM controller */
case SH7750_BCR2_A7:
s->bcr2 = mem_value;
return;
case SH7750_BCR3_A7:
if(!has_bcr3_and_bcr4(s))
error_access("word write", addr);
s->bcr3 = mem_value;
return;
case SH7750_PCR_A7:
s->pcr = mem_value;
return;
case SH7750_RTCNT_A7:
case SH7750_RTCOR_A7:
case SH7750_RTCSR_A7:
ignore_access("word write", addr);
return;
/* IO ports */
case SH7750_PDTRA_A7:
temp = porta_lines(s);
s->pdtra = mem_value;
porta_changed(s, temp);
return;
case SH7750_PDTRB_A7:
temp = portb_lines(s);
s->pdtrb = mem_value;
portb_changed(s, temp);
return;
case SH7750_RFCR_A7:
fprintf(stderr, "Write access to refresh count register\n");
s->rfcr = mem_value;
return;
case SH7750_GPIOIC_A7:
s->gpioic = mem_value;
if (mem_value != 0) {
fprintf(stderr, "I/O interrupts not implemented\n");
abort();
}
return;
default:
error_access("word write", addr);
abort();
}
}
static uint32_t sh7750_mem_readw(void *opaque, target_phys_addr_t addr)
{
SH7750State *s = opaque;
switch (addr) {
case SH7750_BCR2_A7:
return s->bcr2;
case SH7750_FRQCR_A7:
return 0;
case SH7750_RFCR_A7:
fprintf(stderr,
"Read access to refresh count register, incrementing\n");
return s->rfcr++;
case SH7750_PDTRA_A7:
return porta_lines(s);
case SH7750_PDTRB_A7:
return portb_lines(s);
default:
error_access("word read", addr);
assert(0);
}
}
static void sh7750_mem_writel(void *opaque, target_phys_addr_t addr,
uint32_t mem_value)
{
SH7750State *s = opaque;
uint16_t temp;
switch (addr) {
/* SDRAM controller */
case SH7750_BCR1_A7:
s->bcr1 = mem_value;
return;
case SH7750_BCR4_A7:
if(!has_bcr3_and_bcr4(s))
error_access("long write", addr);
s->bcr4 = mem_value;
return;
case SH7750_WCR1_A7:
case SH7750_WCR2_A7:
case SH7750_WCR3_A7:
case SH7750_MCR_A7:
ignore_access("long write", addr);
return;
/* IO ports */
case SH7750_PCTRA_A7:
temp = porta_lines(s);
s->pctra = mem_value;
s->portdira = portdir(mem_value);
s->portpullupa = portpullup(mem_value);
porta_changed(s, temp);
return;
case SH7750_PCTRB_A7:
temp = portb_lines(s);
s->pctrb = mem_value;
s->portdirb = portdir(mem_value);
s->portpullupb = portpullup(mem_value);
portb_changed(s, temp);
return;
case SH7750_MMUCR_A7:
if (mem_value & MMUCR_TI) {
cpu_sh4_invalidate_tlb(s->cpu);
}
s->cpu->mmucr = mem_value & ~MMUCR_TI;
return;
case SH7750_PTEH_A7:
/* If asid changes, clear all registered tlb entries. */
if ((s->cpu->pteh & 0xff) != (mem_value & 0xff))
tlb_flush(s->cpu, 1);
s->cpu->pteh = mem_value;
return;
case SH7750_PTEL_A7:
s->cpu->ptel = mem_value;
return;
case SH7750_PTEA_A7:
s->cpu->ptea = mem_value & 0x0000000f;
return;
case SH7750_TTB_A7:
s->cpu->ttb = mem_value;
return;
case SH7750_TEA_A7:
s->cpu->tea = mem_value;
return;
case SH7750_TRA_A7:
s->cpu->tra = mem_value & 0x000007ff;
return;
case SH7750_EXPEVT_A7:
s->cpu->expevt = mem_value & 0x000007ff;
return;
case SH7750_INTEVT_A7:
s->cpu->intevt = mem_value & 0x000007ff;
return;
case SH7750_CCR_A7:
s->ccr = mem_value;
return;
default:
error_access("long write", addr);
abort();
}
}
