visrealm / vremu6502 Goto Github PK
View Code? Open in Web Editor NEW6502/65C02 emulator library (C99)
License: MIT License
6502/65C02 emulator library (C99)
License: MIT License
WAI should work when interrupts are disabled.
Hi,
First I love this emulator. Nice and clearly written. I noticed these debugging my C64 emulation:
// Ben - Why alter the BRK and Undefined status bits? I checked some write ups and couldn't see this specified?
//push(vr6502, vr6502->flags | 0x30);
push(vr6502, vr6502->flags);
Also is there any reason why Flags is not cleared in vrEmu6502Reset fn? I mean it just means we can rely on a defined state of things but perhaps the real processors make no guarantees?
vr6502->flags = 0;
Thanks,
Ben
line 623
case AddrModeIndY: if (addr8Label) snprintf(buffer, bufferSize, "(%s, x)", addr8Label);
should be
snprintf(buffer, bufferSize, "(%s),y", addr8Label);
not convinced this values a PR.
Shouldn't the extra cycle for 65C02 be in the adcd() function instead of here ?
Line 527 in bbc9dea
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