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ALL: Massive 'const' cleanup

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These changes facilitate more robust parameter type checking and helps
to identify unexpected coding errors.

Most simulators can now also be compiled with a C++ compiler without
warnings.

Additionally, these changes have also been configured to facilitate easier
backporting of simulator and device simulation modules to run under the
simh v3.9+ SCP framework.
This commit is contained in:
Mark Pizzolato
2016-05-15 15:25:33 -07:00
parent 60a8a2d43d
commit 5531ccb175
444 changed files with 4119 additions and 3798 deletions
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23
SAGE/sage_cpu.c
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@@ -32,8 +32,8 @@ static t_stat sagecpu_reset(DEVICE* dptr);
static t_stat sagecpu_boot(int unit,DEVICE* dptr);
static t_stat sage_translateaddr(t_addr in,t_addr* out, IOHANDLER** ioh,int rw,int fc,int dma);
static t_stat sage_mem(t_addr addr,uint8** mem);
static t_stat sagecpu_set_bios(UNIT *uptr, int32 value, char *cptr, void *desc);
static t_stat sagecpu_show_bios(FILE *st, UNIT *uptr, int32 val, void *desc);
static t_stat sagecpu_set_bios(UNIT *uptr, int32 value, CONST char *cptr, void *desc);
static t_stat sagecpu_show_bios(FILE *st, UNIT *uptr, int32 val, CONST void *desc);
static uint8* ROM = 0;
static int rom_enable = TRUE; /* LS74 U51 in CPU schematic */
@@ -45,11 +45,7 @@ extern t_addr AR[];
#define MAX_ROMSIZE 16384
#ifdef SAGE_IV
char* biosfile = "sage-iv.hex";
#else
char* biosfile = "sage-ii.hex";
#endif
char* biosfile = NULL;
static MTAB sagecpu_mod[] = {
{ MTAB_XTD|MTAB_VDV, 0, "BIOS", "BIOS", &sagecpu_set_bios, &sagecpu_show_bios },
@@ -80,14 +76,14 @@ DEVICE sagecpu_dev = {
sagecpu_dt, NULL, NULL
};
static t_stat sagecpu_set_bios(UNIT *uptr, int32 value, char *cptr, void *desc)
static t_stat sagecpu_set_bios(UNIT *uptr, int32 value, CONST char *cptr, void *desc)
{
FILE* fp;
if (cptr==NULL) return SCPE_ARG;
if ((fp=fopen(cptr,"r"))==0) return SCPE_OPENERR;
fclose(fp);
biosfile = malloc(strlen(cptr)+1);
biosfile = (char *)realloc(biosfile, strlen(cptr)+1);
strcpy(biosfile,cptr);
/* enforce reload of BIOS code on next boot */
@@ -96,7 +92,7 @@ static t_stat sagecpu_set_bios(UNIT *uptr, int32 value, char *cptr, void *desc)
return SCPE_OK;
}
static t_stat sagecpu_show_bios(FILE *st, UNIT *uptr, int32 val, void *desc)
static t_stat sagecpu_show_bios(FILE *st, UNIT *uptr, int32 val, CONST void *desc)
{
fprintf(st, "BIOS=%s", biosfile);
return SCPE_OK;
@@ -143,6 +139,13 @@ static t_stat sagecpu_reset(DEVICE* dptr)
TranslateAddr = &sage_translateaddr;
Mem = &sage_mem;
if (!biosfile)
#ifdef SAGE_IV
sagecpu_set_bios(NULL, 0, "sage-iv.hex", NULL);
#else
sagecpu_set_bios(NULL, 0, "sage-ii.hex", NULL);
#endif
if (!ROM) ROM = (uint8*)calloc(MAX_ROMSIZE,1);
rom_enable = TRUE;