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upd7725: Add siack and soack registers and their requisite jumps, not used yet. Fix missing si register and flags registers savestate registration. [Lord Nightmare]

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This commit is contained in:
Lord-Nightmare 2017-03-16 16:04:15 -04:00
parent 356ccfb017
commit 92e498d402
2 changed files with 31 additions and 1 deletions
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26
src/devices/cpu/upd7725/upd7725.cpp
View File

@ -112,11 +112,30 @@ void necdsp_device::device_start()
save_item(NAME(regs.n));
save_item(NAME(regs.a));
save_item(NAME(regs.b));
save_item(NAME(regs.flaga.s1));
save_item(NAME(regs.flaga.s0));
save_item(NAME(regs.flaga.c));
save_item(NAME(regs.flaga.z));
save_item(NAME(regs.flaga.ov1));
save_item(NAME(regs.flaga.ov0));
save_item(NAME(regs.flaga.ov0p));
save_item(NAME(regs.flaga.ov0pp));
save_item(NAME(regs.flagb.s1));
save_item(NAME(regs.flagb.s0));
save_item(NAME(regs.flagb.c));
save_item(NAME(regs.flagb.z));
save_item(NAME(regs.flagb.ov1));
save_item(NAME(regs.flagb.ov0));
save_item(NAME(regs.flagb.ov0p));
save_item(NAME(regs.flagb.ov0pp));
save_item(NAME(regs.tr));
save_item(NAME(regs.trb));
save_item(NAME(regs.dr));
save_item(NAME(regs.si));
save_item(NAME(regs.so));
save_item(NAME(regs.idb));
save_item(NAME(regs.siack));
save_item(NAME(regs.soack));
save_item(NAME(regs.sr.rqm));
save_item(NAME(regs.sr.usf0));
save_item(NAME(regs.sr.usf1));
@ -164,6 +183,8 @@ void necdsp_device::device_reset()
regs.si = 0x0000;
regs.so = 0x0000;
regs.idb = 0x0000;
regs.siack = 0;
regs.soack = 0;
}
//-------------------------------------------------
@ -531,6 +552,11 @@ void necdsp_device::exec_jp(uint32_t opcode) {
case 0x0b2: if((regs.dp & 0x0f) == 0x0f) regs.pc = jps; return; //JDPLF
case 0x0b3: if((regs.dp & 0x0f) != 0x0f) regs.pc = jps; return; //JDPLNF
case 0x0b4: if(regs.siack == 0) regs.pc = jps; return; //JNSIAK
case 0x0b6: if(regs.siack == 1) regs.pc = jps; return; //JSIAK
case 0x0b8: if(regs.soack == 0) regs.pc = jps; return; //JNSOAK
case 0x0ba: if(regs.soack == 1) regs.pc = jps; return; //JSOAK
case 0x0bc: if(regs.sr.rqm == 0) regs.pc = jps; return; //JNRQM
case 0x0be: if(regs.sr.rqm == 1) regs.pc = jps; return; //JRQM

6
src/devices/cpu/upd7725/upd7725.h
View File

@ -181,6 +181,8 @@ private:
uint16_t si;
uint16_t so;
uint16_t idb;
bool siack; // Serial in ACK
bool soack; // Serial out ACK
} regs;
void exec_op(uint32_t opcode);
@ -255,7 +257,9 @@ enum
UPD7725_TRB,
UPD7725_SI,
UPD7725_SO,
UPD7725_IDB
UPD7725_IDB,
UPD7725_SIACK,
UPD7725_SOACK
};
#endif /* __UPD7725_H__ */