folkert/simh-testsetgenerator
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

fix to the "Fortran chain" problem in the 1401 from Bob Supnik.

Browse source 
1. The macro to extract the printer mode bits from the unit flags word was wrong.
2. The print chains were ordered incorrectly in the print table as well.

Tested and seems to work. At least & prints as + with the Fortran chain.
This commit is contained in:
Mark Pizzolato 2013-04-16 16:21:28 -07:00
parent b36efe5226
commit c600ae02cb
1 changed files with 8 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
I1401/i1401_lp.c
View file

@ -1,6 +1,6 @@
/* i1401_lp.c: IBM 1403 line printer simulator
Copyright (c) 1993-2008, Robert M. Supnik
Copyright (c) 1993-2013, Robert M. Supnik
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
@ -25,6 +25,7 @@
lpt 1403 line printer
16-Apr-13 RMS Fixed printer chain selection
19-Jan-07 RMS Added UNIT_TEXT flag
07-Mar-05 RMS Fixed bug in write_line (Van Snyder)
25-Apr-03 RMS Revised for extended file support
@ -49,17 +50,17 @@ t_stat lpt_attach (UNIT *uptr, char *cptr);
t_stat space (int32 lines, int32 lflag);
char *pch_table_old[4] = {
bcd_to_ascii_old, bcd_to_pca, bcd_to_pch, bcd_to_ascii_old
bcd_to_ascii_old, bcd_to_ascii_old, bcd_to_pca, bcd_to_pch
};
char *pch_table[4] = {
bcd_to_ascii_a, bcd_to_pca, bcd_to_pch, bcd_to_ascii_h
bcd_to_ascii_a, bcd_to_ascii_h, bcd_to_pca, bcd_to_pch
};
#define UNIT_V_FT (UNIT_V_UF + 0)
#define UNIT_V_48 (UNIT_V_UF + 1)
#define UNIT_FT (1 << UNIT_V_FT)
#define UNIT_48 (1 << UNIT_V_48)
#define GET_PCHAIN(x) (((x) >> UNIT_V_FT) & (UNIT_FT|UNIT_48))
#define GET_PCHAIN(x) (((x) >> UNIT_V_FT) & 03)
#define CHP(ch,val) ((val) & (1 << (ch)))
/* LPT data structures
@ -119,9 +120,10 @@ if ((lpt_unit.flags & UNIT_ATT) == 0) /* attached? */
wm = ((ilnt == 2) || (ilnt == 5)) && (mod == BCD_SQUARE);
sup = ((ilnt == 2) || (ilnt == 5)) && (mod == BCD_S);
ind[IN_LPT] = 0; /* clear error */
t = GET_PCHAIN (lpt_unit.flags);
if (conv_old) /* get print chain */
bcd2asc = pch_table_old[GET_PCHAIN (lpt_unit.flags)];
else bcd2asc = pch_table[GET_PCHAIN (lpt_unit.flags)];
bcd2asc = pch_table_old[t];
else bcd2asc = pch_table[t];
for (i = 0; i < LPT_WIDTH; i++) { /* convert print buf */
t = M[LPT_BUF + i];
if (wm) /* wmarks -> 1 or sp */