research/opl/dosbox-trace/dosbox-trace.diff
Simon Howard 58512f18d4 Add OPL research data to version control.
Subversion-branch: /research
Subversion-revision: 1480
2009-03-15 19:43:27 +00:00

32 lines
978 B
Diff

--- dosbox-0.72-clean/src/hardware/adlib.cpp 2009-02-19 18:12:05.000000000 +0000
+++ dosbox-0.72/src/hardware/adlib.cpp 2009-03-12 18:15:41.000000000 +0000
@@ -135,15 +135,17 @@
static Bitu OPL_Read(Bitu port,Bitu iolen) {
Bitu addr=port & 3;
+ Bitu result = 0xff;
switch (opl.mode) {
case OPL_opl2:
- return OPL2::YM3812Read(0,addr);
+ result = OPL2::YM3812Read(0,addr);
case OPL_dualopl2:
- return OPL2::YM3812Read(addr>>1,addr);
+ result = OPL2::YM3812Read(addr>>1,addr);
case OPL_opl3:
- return THEOPL3::YMF262Read(0,addr);
+ result = THEOPL3::YMF262Read(0,addr);
}
- return 0xff;
+ printf("OPL_read: %x -> %x\n", addr, result);
+ return result;
}
static void OPL_RawAdd(Bitu index,Bitu val);
@@ -160,6 +162,7 @@
if (opl.raw.capturing) OPL_RawAdd(index,val);
} else opl.raw.cmd[port>>1]=val;
if (!port) adlib_commandreg=val;
+ printf("OPL_write: %x, %x\n", port, val);
switch (opl.mode) {
case OPL_opl2:
OPL2::YM3812Write(0,port,val);