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TX-0: Fix Coverity indicated potential memory overrun

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Mark Pizzolato 2018-05-15 06:49:50 -07:00
parent cc31a50436
commit caee890727
1 changed files with 3 additions and 1 deletions
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4
TX-0/tx0_cpu.c
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@ -234,6 +234,8 @@ In addtion, many of the operate-class micro-orders changed.
#define UNIT_EXT_INST (1 << UNIT_V_EXT) #define UNIT_EXT_INST (1 << UNIT_V_EXT)
#define UNIT_MSIZE (1 << UNIT_V_MSIZE) #define UNIT_MSIZE (1 << UNIT_V_MSIZE)
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#define HIST_PC 0x40000000 #define HIST_PC 0x40000000
#define HIST_V_SHF 18 #define HIST_V_SHF 18
#define HIST_MIN 64 #define HIST_MIN 64
@ -1228,7 +1230,7 @@ t_stat sim_load(FILE *fileref, CONST char *cptr, CONST char *fnam, int flag) {
} else { } else {
lo = strtotv(cptr, &result, 8) & 0xFFFF; lo = strtotv(cptr, &result, 8) & 0xFFFF;
sz = sim_fsize(fileref); sz = sim_fsize(fileref);
sz_words = sz / 4; sz_words = MIN (sz, sizeof (M)) / 4;
for (j = lo; j < sz_words; j++) { for (j = lo; j < sz_words; j++) {
sim_fread(&word, 4, 1, fileref); sim_fread(&word, 4, 1, fileref);
M[j] = word; M[j] = word;