diff --git a/I1401/i1401_cpu.c b/I1401/i1401_cpu.c
index af6cf35c..4e3977db 100644
--- a/I1401/i1401_cpu.c
+++ b/I1401/i1401_cpu.c
@@ -1914,7 +1914,7 @@ return SCPE_OK;
 t_stat cpu_show_hist (FILE *st, UNIT *uptr, int32 val, CONST void *desc)
 {
 int32 i, k, di, lnt;
-const char *cptr = (const char *) desc;
+CONST char *cptr = (CONST char *) desc;
 t_value sim_eval[MAX_L + 1];
 t_stat r;
 InstHistory *h;
diff --git a/I7094/i7094_cpu.c b/I7094/i7094_cpu.c
index 6b587540..073940be 100644
--- a/I7094/i7094_cpu.c
+++ b/I7094/i7094_cpu.c
@@ -2451,7 +2451,7 @@ return SCPE_OK;
 t_stat cpu_show_hist (FILE *st, UNIT *uptr, int32 val, CONST void *desc)
 {
 int32 k, di, lnt;
-const char *cptr = (const char *) desc;
+CONST char *cptr = (CONST char *) desc;
 t_stat r;
 InstHistory *h;
 
diff --git a/Interdata/id16_cpu.c b/Interdata/id16_cpu.c
index c1daa8f6..f8b6e110 100644
--- a/Interdata/id16_cpu.c
+++ b/Interdata/id16_cpu.c
@@ -2001,7 +2001,7 @@ return SCPE_OK;
 t_stat cpu_show_hist (FILE *st, UNIT *uptr, int32 val, CONST void *desc)
 {
 int32 op, k, di, lnt;
-const char *cptr = (const char *) desc;
+CONST char *cptr = (CONST char *) desc;
 t_value sim_eval[2];
 t_stat r;
 InstHistory *h;
diff --git a/Interdata/id16_sys.c b/Interdata/id16_sys.c
index 9bccaaa2..dc781d2d 100644
--- a/Interdata/id16_sys.c
+++ b/Interdata/id16_sys.c
@@ -48,7 +48,7 @@ extern REG cpu_reg[];
 extern uint16 *M;
 
 t_stat fprint_sym_m (FILE *of, t_addr addr, t_value *val);
-t_stat parse_sym_m (const char *cptr, t_addr addr, t_value *val);
+t_stat parse_sym_m (CONST char *cptr, t_addr addr, t_value *val);
 extern t_stat lp_load (FILE *fileref, CONST char *cptr, CONST char *fnam);
 extern t_stat pt_dump (FILE *of, CONST char *cptr, CONST char *fnam);
 
@@ -566,7 +566,7 @@ return -1;
                         <= 0  -number of extra words
 */
 
-t_stat parse_sym_m (const char *cptr, t_addr addr, t_value *val)
+t_stat parse_sym_m (CONST char *cptr, t_addr addr, t_value *val)
 {
 uint32 i, j, t, df, db, inst;
 int32 r1, r2;
diff --git a/Interdata/id32_cpu.c b/Interdata/id32_cpu.c
index 5a747a48..3529f52d 100644
--- a/Interdata/id32_cpu.c
+++ b/Interdata/id32_cpu.c
@@ -2388,7 +2388,7 @@ return SCPE_OK;
 t_stat cpu_show_hist (FILE *st, UNIT *uptr, int32 val, CONST void *desc)
 {
 int32 op, k, di, lnt;
-const char *cptr = (const char *) desc;
+CONST char *cptr = (CONST char *) desc;
 t_value sim_eval[3];
 t_stat r;
 InstHistory *h;
diff --git a/Interdata/id32_sys.c b/Interdata/id32_sys.c
index 788c97c0..98ee4ed7 100644
--- a/Interdata/id32_sys.c
+++ b/Interdata/id32_sys.c
@@ -52,7 +52,7 @@ extern REG cpu_reg[];
 extern uint32 *M;
 
 t_stat fprint_sym_m (FILE *of, t_addr addr, t_value *val);
-t_stat parse_sym_m (const char *cptr, t_addr addr, t_value *val);
+t_stat parse_sym_m (CONST char *cptr, t_addr addr, t_value *val);
 extern t_stat lp_load (FILE *fileref, CONST char *cptr, CONST char *fnam);
 extern t_stat pt_dump (FILE *of, CONST char *cptr, CONST char *fnam);
 
@@ -667,7 +667,7 @@ return -3;
                         <= 0  -number of extra words
 */
 
-t_stat parse_sym_m (const char *cptr, t_addr addr, t_value *val)
+t_stat parse_sym_m (CONST char *cptr, t_addr addr, t_value *val)
 {
 uint32 i, j, df, db, t, inst;
 int32 st, r1, r2, rx2;
diff --git a/NOVA/nova_cpu.c b/NOVA/nova_cpu.c
index c454de0d..5bcb20e7 100644
--- a/NOVA/nova_cpu.c
+++ b/NOVA/nova_cpu.c
@@ -1422,7 +1422,7 @@ return ( 0 ) ;
 t_stat hist_show( FILE * st, UNIT * uptr, int32 val, CONST void * desc )
 {
 int32           k, di, lnt ;
-const char *    cptr = (const char *) desc ;
+CONST char *    cptr = (CONST char *) desc ;
 t_stat          r ;
 Hist_entry *    hptr ;
 
diff --git a/SDS/sds_cpu.c b/SDS/sds_cpu.c
index 2b8725a0..d942e27c 100644
--- a/SDS/sds_cpu.c
+++ b/SDS/sds_cpu.c
@@ -1864,7 +1864,7 @@ return SCPE_OK;
 t_stat cpu_show_hist (FILE *st, UNIT *uptr, int32 val, CONST void *desc)
 {
 int32 ov, k, di, lnt;
-const char *cptr = (const char *) desc;
+CONST char *cptr = (CONST char *) desc;
 t_stat r;
 InstHistory *h;
 static const char *cyc[] = { "   ", "   ", "INT", "TRP" };
diff --git a/SDS/sds_sys.c b/SDS/sds_sys.c
index edbb25ce..5184bc0c 100644
--- a/SDS/sds_sys.c
+++ b/SDS/sds_sys.c
@@ -196,7 +196,7 @@ int32 col, rpt, ptr, mask, cctbuf[CCT_LNT];
 t_stat r;
 extern int32 lpt_ccl, lpt_ccp;
 extern uint8 lpt_cct[CCT_LNT];
-const char *cptr;
+CONST char *cptr;
 char cbuf[CBUFSIZE], gbuf[CBUFSIZE];
 
 ptr = 0;
diff --git a/sigma/sigma_cpu.c b/sigma/sigma_cpu.c
index 1f73e564..2ba09efa 100644
--- a/sigma/sigma_cpu.c
+++ b/sigma/sigma_cpu.c
@@ -2705,7 +2705,7 @@ return SCPE_OK;
 t_stat cpu_show_addr (FILE *of, UNIT *uptr, int32 val, CONST void *desc)
 {
 t_stat r;
-const char *cptr = (const char *) desc;
+CONST char *cptr = (CONST char *) desc;
 uint32 ad, bpa, dlnt, virt;
 static const char *lnt_str[] = {
     "byte",
@@ -2825,7 +2825,7 @@ t_stat cpu_show_hist (FILE *st, UNIT *uptr, int32 val, CONST void *desc)
 {
 int32 k, di, lnt;
 t_stat r;
-const char *cptr = (const char *) desc;
+CONST char *cptr = (CONST char *) desc;
 InstHistory *h;
 
 if (hst_lnt == 0)                                   /* enabled? */
diff --git a/sigma/sigma_lp.c b/sigma/sigma_lp.c
index c761f43f..9d96f9f0 100644
--- a/sigma/sigma_lp.c
+++ b/sigma/sigma_lp.c
@@ -491,7 +491,7 @@ t_stat lp_read_cct (FILE *cfile)
 {
 uint32 col, rpt, ptr, mask;
 uint8 cctbuf[CCT_LNT];
-const char *cptr;
+CONST char *cptr;
 t_stat r;
 char cbuf[CBUFSIZE], gbuf[CBUFSIZE];
 
diff --git a/sigma/sigma_sys.c b/sigma/sigma_sys.c
index 5e089b8c..95f5e8d2 100644
--- a/sigma/sigma_sys.c
+++ b/sigma/sigma_sys.c
@@ -49,7 +49,7 @@ extern uint32 *M;
 extern UNIT cpu_unit;
 
 t_stat fprint_sym_m (FILE *of, uint32 inst);
-t_stat parse_sym_m (const char *cptr, t_value *val);
+t_stat parse_sym_m (CONST char *cptr, t_value *val);
 void fprint_ebcdic (FILE *of, uint32 c);
 
 extern t_stat lp_read_cct (FILE *cfile);
@@ -539,7 +539,7 @@ if (r != SCPE_OK)
 return 0;
 }
 
-t_stat parse_sym_m (const char *cptr, t_value *val)
+t_stat parse_sym_m (CONST char *cptr, t_value *val)
 {
 uint32 i, sgn;
 t_stat r;