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ibmpc, ibmpcxt: Cleanup Coverity identified issues

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This commit is contained in:
Bill Beech
2017-03-20 13:40:40 -07:00
parent bef62a51fd
commit f02a9b02f3
4 changed files with 36 additions and 29 deletions
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17
IBMPC-Systems/common/i8088.c
View File

@@ -291,7 +291,7 @@ uint32 sysmode = 0; /* prefix flags */
#define SYSMODE_SEGOVR_ES 0x08
#define SYSMODE_SEGOVR_SS 0x10
#define SYSMODE_SEGMASK (SYSMODE_SEG_DS_SS | SYSMODE_SEGOVR_CS | \
SYSMODE_SEGOVR_DS | SYSMODE_SEGOVR_ES | SYSMODE_SEGOVR_SS)
SYSMODE_SEGOVR_DS | SYSMODE_SEGOVR_ES | SYSMODE_SEGOVR_SS)
#define SYSMODE_PREFIX_REPE 0x20
#define SYSMODE_PREFIX_REPNE 0x40
@@ -474,7 +474,7 @@ uint8 xor_3_tab[] = { 0, 1, 1, 0 };
int32 IP;
static const char *opcode[] = {
static const char *opcode[256] = {
"ADD\t", "ADD\t", "ADD\t", "ADD\t", /* 0x00 */
"ADD\tAL,", "ADD\tAX,", "PUSH\tES", "POP\tES",
"OR\t", "OR\t", "OR\t", "OR\t",
@@ -542,7 +542,7 @@ static const char *opcode[] = {
};
/*
0 = 1 byte opcaode
0 = 1 byte opcode
1 = DATA8
2 = DATA16
3 = IP-INC8
@@ -579,7 +579,7 @@ int32 sim_instr (void)
{
extern int32 sim_interval;
int32 IR, OP, DAR, reason, hi, lo, carry, i, adr;
int32 MRR, REG, EA, MOD, RM, DISP, VAL, DATA, OFF, SEG, INC, VAL1;
int32 MRR, REG, EA, MOD, RM, DISP, VAL, DATA, OFF, SEG, INC, VAL1, MAR;
IP = saved_PC & ADDRMASK16; /* load local IP */
reason = 0; /* clear stop reason */
@@ -3152,6 +3152,9 @@ int32 sim_instr (void)
case 4: //IP-INC16
sim_printf(" 0%04XH", EA);
break;
case 5: //MAR
sim_printf(" 0%02XH", MAR);
break;
default:
break;
}
@@ -4784,7 +4787,7 @@ t_stat fprint_sym (FILE *of, t_addr addr, t_value *val,
t_stat parse_sym (const char *cptr, t_addr addr, UNIT *uptr, t_value *val, int32 sw)
{
int32 cflag, i = 0, j, r;
int32 cflag, i = 0, j, r, fflag = 1;
char gbuf[CBUFSIZE];
cflag = (uptr == NULL) || (uptr == &i8088_unit);
@@ -4845,9 +4848,9 @@ t_stat parse_sym (const char *cptr, t_addr addr, UNIT *uptr, t_value *val, int32
/* find opcode in table */
for (j = 0; j < 256; j++) {
if (strcmp(gbuf, opcode[j]) == 0)
break;
fflag = 0;
}
if (j > 255) /* not found */
if (fflag) /* not found */
return SCPE_ARG;
val[0] = j; /* store opcode */

1
IBMPC-Systems/common/i8237.c
View File

@@ -375,7 +375,6 @@ DEVICE i8237_dev = {
t_stat i8237_svc(UNIT *uptr)
{
sim_printf("uptr=%08X\n", (long) uptr);
sim_activate (&i8237_unit[uptr->u6], i8237_unit[uptr->u6].wait);
return SCPE_OK;
}