github.com/simh.simh
1
0
Fork 0
mirror of https://github.com/simh/simh.git synced 2026-02-27 01:00:07 +00:00
Code Releases Activity

AltairZ80: Removal of unnecessary variable in s100_pmmi.c

Browse Source
This commit is contained in:
Peter Schorn
2020-10-09 09:13:09 +02:00
parent 91bce50a5f
commit 85858b1287
1 changed files with 5 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
AltairZ80/s100_pmmi.c
View File

@@ -727,33 +727,26 @@ static int32 pmmi_reg2(int32 io, int32 data)
static int32 pmmi_reg3(int32 io, int32 data)
{
PMMI_CTX *xptr;
int32 r,s;
int32 s;
xptr = pmmi_dev.ctxt;
if (io == IO_RD) {
r = xptr->intmsk = xptr->oreg2;
xptr->intmsk = xptr->oreg2; /* Load int mask from rate generator */
} else {
xptr->oreg3 = data;
/* Set/Clear DTR */
s = TMXR_MDM_DTR | ((pmmi_dev.units[0].flags & UNIT_PMMI_RTS) ? TMXR_MDM_RTS : 0);
if (data & PMMI_DTR) {
tmxr_set_get_modem_bits(xptr->tmln, s, 0, NULL);
if (xptr->oreg0 & PMMI_SH) {
xptr->ireg2 &= ~PMMI_AP; /* Answer Phone Bit (active low) */
}
sim_debug(STATUS_MSG, &pmmi_dev, "set DTR HIGH s=%04X.\n", s);
sim_debug(STATUS_MSG, &pmmi_dev, "set DTR HIGH.\n");
} else {
tmxr_set_get_modem_bits(xptr->tmln, 0, s, NULL);
xptr->ireg2 |= PMMI_AP;
sim_debug(STATUS_MSG, &pmmi_dev, "set DTR LOW. s=%04X\n", s);
sim_debug(STATUS_MSG, &pmmi_dev, "set DTR LOW.\n");
}
}
r = 0x00;
return(r);
return 0x00;
}