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DS I/O: Fix IPCSYNC and timers

This commit is contained in:
Jeffrey Pfau 2017-01-03 23:49:47 -08:00
parent 967215dcef
commit bb7bda6f80
1 changed files with 23 additions and 11 deletions
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30
src/ds/io.c
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@ -10,21 +10,21 @@
mLOG_DEFINE_CATEGORY(DS_IO, "DS I/O");
static bool DSIOWrite(struct DSCommon* dscore, uint32_t address, uint16_t value) {
static uint32_t DSIOWrite(struct DSCommon* dscore, uint32_t address, uint16_t value) {
switch (address) {
// Timers
case DS_REG_TM0CNT_LO:
GBATimerWriteTMCNT_LO(&dscore->timers[0], value);
return true;
return 0x20000;
case DS_REG_TM1CNT_LO:
GBATimerWriteTMCNT_LO(&dscore->timers[1], value);
return true;
return 0x20000;
case DS_REG_TM2CNT_LO:
GBATimerWriteTMCNT_LO(&dscore->timers[2], value);
return true;
return 0x20000;
case DS_REG_TM3CNT_LO:
GBATimerWriteTMCNT_LO(&dscore->timers[3], value);
return true;
return 0x20000;
case DS_REG_TM0CNT_HI:
value &= 0x00C7;
@ -59,9 +59,9 @@ static bool DSIOWrite(struct DSCommon* dscore, uint32_t address, uint16_t value)
value = dscore->memory.io[address >> 1] & ~value;
break;
default:
return false;
return 0;
}
return true;
return value | 0x10000;
}
static void DSIOUpdateTimer(struct DSCommon* dscore, uint32_t address) {
@ -88,8 +88,14 @@ void DS7IOInit(struct DS* ds) {
void DS7IOWrite(struct DS* ds, uint32_t address, uint16_t value) {
switch (address) {
default:
if (DSIOWrite(&ds->ds7, address, value)) {
{
uint32_t v2 = DSIOWrite(&ds->ds7, address, value);
if (v2 & 0x10000) {
value = v2;
break;
} else if (v2 & 0x20000) {
return;
}
}
mLOG(DS_IO, STUB, "Stub DS7 I/O register write: %06X:%04X", address, value);
if (address >= DS7_REG_MAX) {
@ -203,8 +209,14 @@ void DS9IOInit(struct DS* ds) {
void DS9IOWrite(struct DS* ds, uint32_t address, uint16_t value) {
switch (address) {
default:
if (DSIOWrite(&ds->ds9, address, value)) {
{
uint32_t v2 = DSIOWrite(&ds->ds9, address, value);
if (v2 & 0x10000) {
value = v2;
break;
} else if (v2 & 0x20000) {
return;
}
}
mLOG(DS_IO, STUB, "Stub DS9 I/O register write: %06X:%04X", address, value);
if (address >= DS7_REG_MAX) {