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MEMUTIL.C
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MEMUTIL.C
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/* MEMUTIL.C -- HP95LX System-Manager Compliant Memory Utility
Written April 1992 by Craig A. Finseth
Copyright 1992,3,4 by Craig A. Finseth
*/
#include "memutil.h"
#include "sysmgr.h"
#define FP_OFF(fp) ((unsigned)(fp))
#define FP_SEG(fp) ((unsigned)((unsigned long)(fp) >> 16))
#define DEBUG95_CMD "C:\\_SYS\\DEBUG"
#define DEBUG100_CMD "D:\\DOS\\DEBUG"
/* application states */
#define NUM_AP_STATES (sizeof(aps) / sizeof(aps[0]))
static struct ap_states {
char state;
char *name;
} aps[] = {
{ 0, "Closed" },
{ 1, "Active" },
{ 2, "Suspended" },
{ 4, "Exit" },
{ 8, "Yield" },
{ 16, "Exit Refused" } };
/* display status */
enum dstate { DHELP, DAPPS, DAPLONG, DCHAINS, DMEM, DCHARS };
/* task control structures */
struct mutask {
enum dstate disp; /* which type of display to use */
unsigned height; /* height of screen in objects */
unsigned start; /* first object */
unsigned num; /* number of objects */
unsigned cur; /* current object, >= 0 and < num */
};
static struct mutask t[] = {
{ DHELP, HEIGHT, 0, 0, 0 },
{ DAPPS, HEIGHT, 0, NUMAPPS, DEFAULTAPP },
{ DAPLONG, 1, 0, NUMAPPS, DEFAULTAPP },
{ DCHAINS, HEIGHT, 0, 1, 0 },
{ DMEM, HEIGHT / 2, 0, 64, 0 },
{ DCHARS, HEIGHT, 0, 512, 0 } };
static struct mutask *curt = &t[DAPPS]; /* current task */
/* per-task storage */
static struct acb acbs[NUMAPPS]; /* for DAPPS */
static struct mem_chain links[NUMLINKS]; /* for DCHAINS */
static char chars_buf[BUFFSIZE]; /* for Carat/Label */
static struct task far *sys_tasks;
/* last six tasks */
#define NUM_LAST (sizeof(last) / sizeof(last[0]))
static struct mutask *last[6] = { &t[DAPPS], &t[DAPPS], &t[DAPPS],
&t[DAPPS], &t[DAPPS], &t[DAPPS] };
/* global flags */
static FLAG isterm = FALSE; /* are we quitting the program? */
static FLAG isbin = FALSE; /* text or binary saving? */
static FLAG is100 = FALSE; /* 95 or 100? */
/* key labels */
static char *labels[] = {
/* 0-9 */
"", "", "", "Ctrl-2", "", "", "", "", "", "",
/* 10-19 */
"", "", "", "", "", "Shift-Tab", "Alt-Q", "Alt-W", "Alt-E", "Alt-R",
/* 20-29 */
"Alt-T", "Alt-Y", "Alt-U", "Alt-I", "Alt-O", "Alt-P", "", "", "", "",
/* 30-39 */
"Alt-A", "Alt-S", "Alt-D", "Alt-F", "Alt-G", "Alt-H", "Alt-J",
"Alt-K", "Alt-L", "",
/* 40-49 */
"", "", "", "", "Alt-Z", "Alt-X", "Alt-C", "Alt-V", "Alt-B", "Alt-N",
/* 50-59 */
"Alt-M", "", "", "", "", "", "", "", "", "F1",
/* 60-69 */
"F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", "",
/* 70-79 */
"", "Home", "Up Arrow", "PgUp", "", "Left Arrow", "", "Right Arrow",
"", "End",
/* 80-89 */
"Down Arrow", "PgDn", "Ins", "Del", "Shift-F1", "Shift-F2", "Shift-F3",
"Shift-F4", "Shift-F5", "Shift-F6",
/* 90-99 */
"Shift-F7", "Shift-F8", "Shift-F9", "Shift-F10", "Ctrl-F1", "Ctrl-F2",
"Ctrl-F3", "Ctrl-F4", "Ctrl-F5", "Ctrl-F6",
/* 100-109 */
"Ctrl-F7", "Ctrl-F8", "Ctrl-F9", "Ctrl-F10", "Alt-F1", "Alt-F2", "Alt-F2",
"Alt-F4", "Alt-F5", "Alt-F6",
/* 110-119 */
"Alt-F7", "Alt-F8", "Alt-F9", "Alt-F10", "Ctrl-PrtSc", "Ctrl-Left Arrow",
"Ctrl-Right Arrow", "Ctrl-End", "Ctrl-PgDn", "Ctrl-Home",
/* 120-129 */
"Alt-1", "Alt-2", "Alt-3", "Alt-4", "Alt-5", "Alt-6", "Alt-7", "Alt-8",
"Alt-9", "Alt-0",
/* 130-139 */
"Alt--", "Alt-=", "Ctrl-PgUp", "", "", "", "", "", "", "",
/* 140-149 */
"", "Ctrl-PgUp", "Ctrl--", "", "Alt-+", "Ctrl-PgDn", "Ctrl-Ins", "", "", "",
/* 150-159 */
"Ctrl-*", "", "", "", "", "", "", "", "", "",
/* 160-169 */
"", "", "Ctrl-On", "", "SETUP|&...", "Alt-Tab", "", "Alt-&...", "FILER", "",
/* 170-179 */
"Ctrl-&...", "Alt-FILER", "COMM|cc:MAIL", "", "Ctrl-FILER", "Alt-COMM|cc:MAIL",
"APPT", "", "Ctrl-COMM|cc:MAIL", "Alt-APPT",
/* 180-189 */
"PHONE", "", "Ctrl-APPT", "Alt-PHONE", "MEMO", "", "Ctrl-PHONE",
"Alt-MEMO", "123", "",
/* 190-199 */
"Ctrl-MEMO", "Alt-123", "CALC", "", "Ctrl-123", "Alt-CALC", "", "",
"Ctrl-CALC", "",
/* 200-209 */
"MENU", "Shift-MENU", "Ctrl-MENU", "Alt-MENU", "", "", "", "", "ZOOM", "DATE",
/* 210-219 */
"TIME", "", "CUT", "COPY", "PASTE", "", "", "", "", "",
/* 220-229 */
"", "", "", "", "", "", "", "", "", "",
/* 230-239 */
"", "", "", "", "", "", "", "", "", "",
/* 240-249 */
"", "", "", "", "", "", "", "", "", "",
/* 250-255 */
"", "", "", "", "", "" };
char *ApState(int state);
char *Carat(int chr);
void Command(char *str);
void Display(void);
void Disp_Help(void);
void Disp_Apps(void);
void Disp_ApLong(void);
void Disp_Chains(void);
void Disp_Mem(void);
void Disp_Chars(void);
FLAG GetFile(char *prompt, char *fname, FLAG usestar);
FLAG GetHex(char *prompt, unsigned *val, unsigned mx);
int GetKey(char *prompt);
FLAG GetMenu(void);
FLAG GetStr(char *prompt, char *buf, char *deflt);
char *Label(int chr);
void Push_Task(void);
void Refresh(void);
void ToClip(void);
void ToFile(void);
void To_Help(int fd, int clip);
void To_Apps(int fd, int clip);
void To_ApLong(int fd, int clip);
void To_Chains(int fd, int clip);
void To_Mem(int fd, int clip);
void To_Chars(int fd, int clip);
FLAG To_Write(int fd, int clip, char *buf, int len);
/* ------------------------------------------------------------ */
void
main(void)
{
int amt;
unsigned key;
EVENT e;
m_init();
if (JGetType() == 'C') is100 = TRUE;
Refresh();
links[0].seg = 0;
links[0].size = 1;
links[0].owner = 0;
xstrcpy(links[0].name, "[uninitialized]");
e.kind = E_KEY;
do {
if (curt->cur > curt->num - 1) curt->cur = curt->num - 1;
if (curt->num == 0) curt->cur = 0;
/* ensure that the APPS and APLONG selections stay in sync */
if (curt == &t[DAPPS]) t[DAPLONG].cur = curt->cur;
if (curt == &t[DAPLONG]) t[DAPPS].cur = curt->cur;
if (e.kind == E_KEY) Display();
m_event(&e);
switch (e.kind) {
case E_NONE:
m_posttime();
break;
case E_KEY:
switch (e.data) {
case CR:
if (curt == &t[DAPPS]) {
Push_Task();
curt = &t[DAPLONG];
}
else if (curt == &t[DAPLONG]) {
Push_Task();
curt = &t[DMEM];
curt->start = acbs[t[DAPPS].cur].ds;
curt->num = APPSEGSIZE;
curt->cur = 0;
}
else if (curt == &t[DCHAINS]) {
Push_Task();
curt = &t[DMEM];
curt->start = links[t[DCHAINS].cur].seg;
curt->num = links[t[DCHAINS].cur].size;
curt->cur = 0;
}
break;
case ESC:
curt = last[NUM_LAST - 1];
for (amt = NUM_LAST - 1; amt > 0; amt--) {
last[amt] = last[amt - 1];
}
last[0] = &t[DAPPS];
break;
case 0x3b00: /* F1 */
Push_Task();
curt = &t[DHELP];
break;
case 0x3c00: /* F2 */
Push_Task();
t[DCHAINS].num = GetChain(links, NUMLINKS);
curt = &t[DCHAINS];
Refresh();
break;
case 0x3d00: /* F3 */
Push_Task();
curt = &t[DAPPS];
break;
case 0x3e00: /* F4 */
Push_Task();
curt = &t[DMEM];
break;
case 0x3f00: /* F5 */
Push_Task();
curt = &t[DAPLONG];
break;
case 0x4000: /* F6 */
Push_Task();
curt = &t[DCHARS];
break;
case 0x4100: /* F7 */
key = t[DMEM].start;
if (GetHex("Paragraph to show:", &key,
0xFFFF)) {
Push_Task();
curt = &t[DMEM];
curt->start = key;
curt->cur = 0;
}
break;
case 0x4200: /* F8 */
Push_Task();
curt = &t[DCHARS];
key = GetKey("Press key to view");
if (key > 0xff) {
key >>= 8;
key &= 0xff;
key += 256;
}
curt->cur = key;
break;
case 0x4300: /* F9 */
key = t[DMEM].num;
if (GetHex("Memory block length in pargraphs:",
&key, 0xFFFF)) {
Push_Task();
curt = &t[DMEM];
curt->num = key;
}
break;
case 0x4400: /* F10 */
key = curt->cur;
if (GetHex("view starting at offset:", &key,
curt->num)) {
curt->cur = key;
}
break;
case 0x4700: /* Home */
curt->cur = 0;
break;
case 0x4800: /* Up */
if (curt->cur >= 1) curt->cur--;
break;
case 0x4900: /* PgUp */
if (curt->cur >= curt->height)
curt->cur -= curt->height;
else curt->cur = 0;
break;
case 0x4b00: /* Left */
amt = curt->num / 10;
if (amt < 1) amt = 1;
if (curt->cur >= amt)
curt->cur -= amt;
else curt->cur = 0;
break;
case 0x4d00: /* Right */
amt = curt->num / 10;
if (amt < 1) amt = 1;
curt->cur += amt;
break;
case 0x4f00: /* End */
curt->cur = curt->num - 1;
break;
case 0x5000: /* Down */
curt->cur++;
break;
case 0x5100: /* PgDn */
curt->cur += curt->height;
break;
case 0xc800: /* MENU */
GetMenu();
break;
default:
m_thud();
break;
}
break;
case E_ACTIV:
Refresh();
Display();
break;
}
} while (!isterm && e.kind != E_TERM);
m_fini();
}
/* ------------------------------------------------------------ */
/* Return a pointer to a static buffer that contains a description
of the applcation's state information. */
char *
ApState(int state)
{
int cnt;
for (cnt = 0; cnt < NUM_AP_STATES; cnt++) {
if (state == aps[cnt].state) return(aps[cnt].name);
}
xsprintf(chars_buf, "??st %x", state);
return(chars_buf);
}
/* ------------------------------------------------------------ */
/* Return a pointer to a static buffer that contains the carat
notation form of the supplied character. */
char *
Carat(int chr)
{
char *buf = chars_buf;
chr &= 0xff;
if (chr & 0x80) {
*buf++ = '~';
chr &= 0x7f;
}
if (chr < SP || chr == DEL) {
*buf++ = '^';
chr ^= '@';
}
*buf++ = chr;
*buf = NUL;
strcat(chars_buf, " ");
chars_buf[3] = NUL;
return(chars_buf);
}
/* ------------------------------------------------------------ */
/* Execute an external command. If STR is not NULL, prompt. */
void
Command(char *str)
{
char buf[BUFFSIZE];
if (str == NULL) {
GetStr("Command to execute:", buf, "");
}
else xstrcpy(buf, str);
strcat(buf, "\r\n");
m_spawn(buf, strlen(buf) - 2, 2, buf);
}
/* ------------------------------------------------------------ */
void
Display(void)
{
char buf[41]; /* we know how big the screen is */
int start; /* this stuff is for calculating the slider bar */
int stop;
unsigned ustart;
unsigned ustop;
unsigned tmp;
VidCurOff(); /* force the cursor off */
/* display the top line */
m_disp(-3, 0, "MemUtil V2.3 ", 40, 0, 0);
/* build the slider bar, using 16-bit
arithmetic */
memset(buf, '\xCD', 40);
if (curt->num > 0) {
if (curt->num > 512) { /* losing precision isn't so bad... */
tmp = curt->num / 40;
ustart = curt->cur / tmp;
if (ustart > 39) ustart = 39;
ustop = (curt->cur + curt->height) / tmp;
if (ustop <= ustart) ustop = ustart + 1;
if (ustop > 40) ustop = 40;
memset(&buf[ustart], '\xC4', ustop - ustart);
}
else { /* don't worry about overflow */
start = (curt->cur * 40) / curt->num;
if (start < 0) start = 0;
if (start > 39) start = 39;
stop = ((curt->cur + curt->height) * 40 ) / curt->num;
if (stop <= start) stop = start + 1;
if (stop > 40) stop = 40;
memset(&buf[start], '\xC4', stop - start);
}
}
m_disp(-2, 0, buf, 40, 0, 0);
/* select the per-task display */
switch (curt->disp) {
case DHELP: Disp_Help(); break;
case DAPPS: Disp_Apps(); break;
case DAPLONG: Disp_ApLong(); break;
case DCHAINS: Disp_Chains(); break;
case DMEM: Disp_Mem(); break;
case DCHARS: Disp_Chars(); break;
}
/* put up the function key labels; note the
"1" in the second-to-last position that
specifies inverse video */
m_disp(11, 0, "Help Apps ApLong Para Length ", 40, 1, 0);
m_disp(12, 0, " Chains Mem Chars Key Offset ", 40, 1, 0);
}
/* ------------------------------------------------------------ */
/* Display the help screen. */
void
Disp_Help(void)
{
char buf[BUFFSIZE];
int cnt;
/* Loop until you get to the end of the screen or
run out of objects. */
for (cnt = 0; cnt < HEIGHT && cnt + curt->cur < curt->num; cnt++) {
/* Put into a buffer, with 40 trailing spaces
xsprintf is a private version of sprintf that
has somewhat different performance tradeoffs. */
xsprintf(buf, "%s ",
Help_Line(curt->cur + cnt));
/* Display the first 40 characters of the
buffer. */
m_disp(-1 + cnt, 0, buf, 40, 0, 0);
}
/* If you ran out of lines and have not run
out of screen, blank the rest of the screen. */
if (cnt < HEIGHT) {
m_clear(-1 + cnt, 0, HEIGHT - (-1 + cnt), 40);
}
}
/* ------------------------------------------------------------ */
/* Display the application activity screen. */
void
Disp_Apps(void)
{
struct acb *a;
struct task k;
char buf[BUFFSIZE];
char nbuf[80];
char sbuf[80];
char kbuf[80];
char *name;
unsigned key;
int state;
int cnt;
for (cnt = 0; cnt < HEIGHT && cnt + curt->cur < curt->num; cnt++) {
if (is100) {
k = sys_tasks[curt->cur + cnt];
name = k.t_extname;
key = k.t_hotkey;
state = k.t_state;
}
else {
a = &acbs[curt->cur + cnt];
name = a->name;
key = a->hot_key;
state = a->state;
}
if (*name == NUL)
xstrcpy(kbuf, " ");
else {
if (key >= 256) {
xstrncpy(kbuf, Label((key >> 8) & 0xff));
}
else {
xstrcpy(kbuf, Carat(key));
}
kbuf[13] = NUL;
strcat(kbuf, " ");
kbuf[13] = NUL;
}
if (*name == NUL) {
xstrcpy(nbuf, "[none] ");
}
else {
xstrncpy(nbuf, name);
nbuf[15] = NUL;
strcat(nbuf, " ");
nbuf[15] = NUL;
}
if (*name == NUL) {
xstrcpy(sbuf, " ");
}
else {
xstrncpy(sbuf, ApState(state));
sbuf[9] = NUL;
strcat(sbuf, " ");
sbuf[9] = NUL;
}
xsprintf(buf, "%s %s %s", kbuf, nbuf, sbuf);
m_disp(-1 + cnt, 0, buf, 40, 0, 0);
}
if (cnt < HEIGHT) {
m_clear(-1 + cnt, 0, HEIGHT - (-1 + cnt), 40);
}
}
/* ------------------------------------------------------------ */
/* Display the application activity screen. */
void
Disp_ApLong(void)
{
struct acb *a;
struct task k;
char buf[BUFFSIZE];
char buf2[13];
char buf3[128];
char fname[30]; /* exactly legal apname file name size + 1 */
int cnt;
unsigned amt;
if (is100) {
k = sys_tasks[curt->cur];
xstrncpy(buf2, k.t_extname);
xsprintf(buf, "%s ",
buf2);
m_disp(-1, 0, buf, 40, 0, 0);
xsprintf(buf, " status %s ",
ApState(k.t_state));
m_disp(0, 0, buf, 40, 0, 0);
if (k.t_hotkey >= 256) {
xsprintf(buf, " hot key %s ",
Label((k.t_hotkey >> 8) & 0xff));
}
else {
xsprintf(buf, " hot key %s ",
Carat(k.t_hotkey));
}
m_disp(1, 0, buf, 40, 0, 0);
if (k.t_seg_image == 0) {
m_disp(2, 0, " ", 40, 0, 0);
}
else {
amt = k.t_seg_image + (k.t_off_image >> 4);
BlockGet(buf3, sizeof(buf3), amt);
amt = k.t_off_image & 0xf;
xstrncpy(fname, &buf3[amt + 56]);
xsprintf(buf, "%s ", fname);
m_disp(2, 0, buf, 40, 0, 0);
}
xsprintf(buf, " stack %x:%x far size %x far off %x ",
k.t_ss, k.t_sp, k.t_far_size, k.t_far_off);
m_disp(3, 0, buf, 40, 0, 0);
xsprintf(buf, " imagevec %x:%x far rsvrd %x ",
k.t_seg_image, k.t_off_image, k.t_far_rsvrd);
m_disp(4, 0, buf, 40, 0, 0);
xsprintf(buf, " DS %x page count %x %x ",
k.t_ds, k.t_pagecount[0], k.t_pagecount[1]);
m_disp(5, 0, buf, 40, 0, 0);
xsprintf(buf, " mem seg %x rsrc seg %x ver %x ",
k.t_memseg, k.t_rsrc_seg, k.t_sys_ver);
m_disp(6, 0, buf, 40, 0, 0);
xsprintf(buf, " flags %x no wait %x lock %x ",
k.t_is123, k.t_nowait, k.t_lock_state);
m_disp(7, 0, buf, 40, 0, 0);
xsprintf(buf, " phy page %x %x logic page %x %x ",
k.t_phypage[0], k.t_phypage[1],
k.t_logicalpage[0], k.t_logicalpage[1]);
m_disp(8, 0, buf, 40, 0, 0);
xsprintf(buf, " chip selection %2x %2x ic u loc %x ",
k.t_chipsel[0], k.t_chipsel[1], k.t_ic_u_loc);
m_disp(9, 0, buf, 40, 0, 0);
xsprintf(buf, " sp status %x sp link %x ic o loc %x ",
k.t_sp_status, k.t_sp_link, k.t_ic_o_loc);
m_disp(10, 0, buf, 40, 0, 0);
}
else {
a = &acbs[curt->cur];
xstrncpy(buf2, a->name);
xsprintf(buf, "%s ",
buf2);
m_disp(-1, 0, buf, 40, 0, 0);
xsprintf(buf, " status %s ",
ApState(a->state));
m_disp(0, 0, buf, 40, 0, 0);
if (a->hot_key >= 256) {
xsprintf(buf, " hot key %s ",
Label((a->hot_key >> 8) & 0xff));
}
else {
xsprintf(buf, " hot key %s ",
Carat(a->hot_key));
}
m_disp(1, 0, buf, 40, 0, 0);
if (curt->cur < DEFAULTAPP || a->imagev_seg == 0) {
m_disp(2, 0, " ", 40, 0, 0);
}
else {
amt = a->imagev_seg + (a->imagev_off >> 4);
BlockGet(buf3, sizeof(buf3), amt);
amt = a->imagev_off & 0xf;
xstrncpy(fname, &buf3[amt + 56]);
xsprintf(buf, "%s ", fname);
m_disp(2, 0, buf, 40, 0, 0);
}
xsprintf(buf, " stack %x:%x ",
a->ss, a->sp);
m_disp(3, 0, buf, 40, 0, 0);
xsprintf(buf, " imagevec %x:%x ",
a->imagev_seg, a->imagev_off);
m_disp(4, 0, buf, 40, 0, 0);
xsprintf(buf, " DS %x ", a->ds);
m_disp(5, 0, buf, 40, 0, 0);
xsprintf(buf, " mem seg %x rsrc seg %x ",
a->mem_seg, a->rsrc_seg);
m_disp(6, 0, buf, 40, 0, 0);
xsprintf(buf, " flags %x no wait %x ",
a->flags, a->nowait);
m_disp(7, 0, buf, 40, 0, 0);
xsprintf(buf, " memory mapping %2x %2x %2x %2x %2x %2x ",
a->membank[0], a->membank[1], a->membank[2],
a->membank[3], a->membank[4], a->membank[5]);
m_disp(8, 0, buf, 40, 0, 0);
xsprintf(buf, " chip selection %2x %2x %2x %2x %2x %2x ",
a->chipsel[0], a->chipsel[1], a->chipsel[2],
a->chipsel[3], a->chipsel[4], a->chipsel[5]);
m_disp(9, 0, buf, 40, 0, 0);
m_disp(10, 0, " ", 40, 0, 0);
}
}
/* ------------------------------------------------------------ */
/* Display the memory chains screen. */
void
Disp_Chains(void)
{
char buf[BUFFSIZE];
int cnt;
for (cnt = 0; cnt < HEIGHT && cnt + curt->cur < curt->num; cnt++) {
xsprintf(buf, "at %4x len %4x %4x:%s ",
links[cnt + curt->cur].seg,
links[cnt + curt->cur].size,
links[cnt + curt->cur].owner,
links[cnt + curt->cur].name);
m_disp(-1 + cnt, 0, buf, 40, 0, 0);
}
if (cnt < HEIGHT) {
xsprintf(buf, "last paragraph %x ",
links[curt->num].seg + links[curt->num].size + 1);
m_disp(-1 + cnt, 0, buf, 40, 0, 0);
cnt++;
}
if (cnt < HEIGHT) {
m_clear(-1 + cnt, 0, HEIGHT - (-1 + cnt), 40);
}
}
/* ------------------------------------------------------------ */
/* Display a memory block. */
void
Disp_Mem(void)
{
char buf[BUFFSIZE];
char data[(HEIGHT / 2) * 16];
int row;
unsigned para;
unsigned offset;
int cnt;
char c;
para = curt->start + curt->cur;
offset = curt->cur;
BlockGet(data, sizeof(data), para);
for (row = 0; row < HEIGHT && offset < curt->num; row++, para++, offset++) {
xsprintf(buf, "%4x ", para);
for (cnt = 0; cnt < 8; cnt++) {
xsprintf(&buf[8 + cnt * 3], "%2x ",
data[(row / 2) * 16 + cnt]);
}
for (cnt = 0; cnt < 8; cnt++) {
c = data[(row / 2) * 16 + cnt];
if (c < SP || c > '~') c = '.';
buf[32 + cnt] = c;
}
m_disp(-1 + row, 0, buf, strlen(buf), 0, 0);
row++;
xsprintf(buf, " (%4x) ", offset);
for (cnt = 0; cnt < 8; cnt++) {
xsprintf(&buf[8 + cnt * 3], "%2x ",
data[(row / 2) * 16 + cnt + 8]);
}
for (cnt = 0; cnt < 8; cnt++) {
c = data[(row / 2) * 16 + cnt + 8];
if (c < SP || c > '~') c = '.';
buf[32 + cnt] = c;
}
m_disp(-1 + row, 0, buf, strlen(buf), 0, 0);
}
if (row < HEIGHT) {
m_clear(-1 + row, 0, HEIGHT - (-1 + row), 40);
}
}
/* ------------------------------------------------------------ */
/* Display the characters screen. */
void
Disp_Chars(void)
{
char buf[BUFFSIZE];
int cnt;
int which;
for (cnt = 0, which = curt->cur; cnt < HEIGHT && which < 256;
cnt++, which++) {
xsprintf(buf, "%2x %3dd %03oo %s %c ",
which, which, which, Carat(which & 0xff), which);
m_disp(-1 + cnt, 0, buf, 40, 0, 0);
}
for ( ; cnt < HEIGHT && which < 512; cnt++, which++) {
xsprintf(buf, "%2x00 %s ",
which & 0xFF, Label(which & 0xff));
m_disp(-1 + cnt, 0, buf, 40, 0, 0);
}
if (cnt < HEIGHT) {
m_clear(-1 + cnt , 0, HEIGHT - (-1 + cnt), 40);
}
}
/* ------------------------------------------------------------ */
/* Get a file name using the file getter. Return True on success or
False on abort. */
FLAG
GetFile(char *prompt, char *fname, FLAG usestar)
{
FILEINFO fi[100]; /* Can display up to 100 files at
once. Change this constant to change
the maximum number of files that can
be displayed at once.*/
FMENU f; /* file menu extra data structure */
EDITDATA ed; /* you've seen these */
EVENT e;
FLAG isdone = FALSE;
FLAG ok = TRUE;
char dn[FNAMEMAX]; /* working copy of the directory part */
char fn[FNAMEMAX]; /* working copy of the file part */
char *cptr; /* scratch variable */
if (is100) return(GetStr(prompt, fname, ""));
xstrcpy(dn, fname); /* make a copy of the name */
/* This code splits the full name into the directory
and file parts. It starts at the end and searches
backwards until it finds a /, \, or :. If there isn't
one, it sets the directory part to "". If there isn't
a file part, that is set to "". */
for (cptr = dn + strlen(dn); cptr > dn; --cptr) {
if (*cptr == ':' || *cptr == '/' || *cptr == '\\') break;
}
if (*cptr == ':' || *cptr == '/' || *cptr == '\\') {
xstrcpy(fn, cptr + 1);
*(cptr + 1) = NUL;
}
else {
xstrcpy(fn, cptr);
*cptr = NUL;
}
/* If there is no file part or usestar is True, force
the file name to "*.*". */
if (*fn == NUL || usestar) {
xstrcpy(fn, "*.*");
}
/* Initialize the required parts of the file menu
structure. */
f.fm_path = dn; /* directory name part */
f.fm_pattern = fn; /* file name part */
f.fm_buffer = fi; /* place to put the working names */
f.fm_buf_size = sizeof(fi); /* how big (many) */
f.fm_startline = -2; /* top line... *sigh* */
f.fm_startcol = 0; /* left edge */
f.fm_numlines = 14; /* leave 2 lines for 95buddy */
f.fm_numcols = 40; /* and all columns */
f.fm_filesperline = 3; /* can fit this many across */
/* Now, set up the edit buffer part. Just copy these
values... */
ed.prompt_window = 1;
ed.prompt_line_length = 0;
ed.message_line = prompt;
ed.message_line_length = strlen(prompt);
/* clear the screen */
m_clear(-3, 0, 16, 40);
/* start things up */
if (fmenu_init(&f, &ed, "", 0, 0) != RET_OK) {
GetKey("can't init file getter");
return(FALSE);
}
/* the usual, you've seen all this */
VidCurOff();
e.kind = E_KEY;
while (!isdone) {
if (e.kind == E_KEY || e.kind == E_ACTIV) fmenu_dis(&f, &ed);
m_event(&e);
switch (e.kind) {
case E_ACTIV:
VidCurOff();
Refresh();
break;
case E_TERM:
isterm = TRUE;
isdone = TRUE;
break;
case E_BREAK:
ok = FALSE;
isdone = TRUE;
break;
case E_KEY:
if (e.data == ESC) { /* handle Esc */
ok = FALSE;
isdone = TRUE;
}
else { /* this routine has multiple
return values, which tell you
what to do */
switch (fmenu_key(&f, &ed, e.data)) {
case RET_UNKNOWN: /* bad key */
case RET_BAD:
m_thud();
break;
case RET_OK: /* keep goin' */
break;
case RET_REDISPLAY: /* reshow the
screen */
break;
case RET_ACCEPT: /* done, ok */
isdone = TRUE;
break;
case RET_ABORT: /* done, cancel */
ok = FALSE;
isdone = TRUE;
break;