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/*
* reg.cc -- handle events in the registers window
*/
#include "picsim.hh"
void
reg_refresh( Widget w, XEvent *ev, String *prms, Cardinal *nprm )
{
GC gc;
XGCValues xgcv;
XFontStruct *xfsp;
Dimension w_height, w_width;
short c_width;
int a, b, i, j, k, dv;
u_char v;
char buf[32];
XtVaGetValues( W.rdata,
XtNforeground, &xgcv.foreground,
XtNbackground, &xgcv.background,
XtNheight, &w_height,
XtNwidth, &w_width,
XtNfont, &xfsp,
NULL );
xgcv.font = xfsp->fid;
gc = XCreateGC( XtDisplay(W.rdata), XtWindow(W.rdata),
GCForeground | GCBackground | GCFont,
&xgcv );
/*
* count the implemented regsters in the page we're looking at
*/
k = 0;
for (i = 0; i < 128; i++) {
a = Pic.reg_file[Pic.vreg][i].redirect_page;
b = Pic.reg_file[Pic.vreg][i].redirect_reg;
if (Pic.reg_file[a][b].implemented) ++k;
}
k = (k + 1) >> 1;
dv = xfsp->ascent + xfsp->descent;
c_width = xfsp->max_bounds.width;
for (i = j = 0; i < 128; i++) {
a = Pic.reg_file[Pic.vreg][i].redirect_page;
b = Pic.reg_file[Pic.vreg][i].redirect_reg;
if (!Pic.reg_file[a][b].implemented) continue;
v = Pic.reg_file[a][b].value & Pic.reg_file[a][b].implemented;
if (c_width * 16 * 2 <= w_width) {
if (Pic.reg_file[a][b].name)
sprintf( buf, "%.6s:0x%02X '%c'",
Pic.reg_file[a][b].name,
v,
((v >= ' ' && v <= '~') ? v : '.'));
else
sprintf( buf, " F%02X:0x%02X '%c'",
i,
v,
((v >= ' ' && v <= '~') ? v : '.'));
} else {
if (Pic.reg_file[a][b].name)
sprintf( buf, "%.6s:0x%02X", Pic.reg_file[a][b].name, v );
else
sprintf( buf, " F%02X:0x%02X", i, v );
}
if (Pic.reg_file[a][b].modified_last) {
Pixel temp = xgcv.foreground;
xgcv.foreground = xgcv.background;
xgcv.background = temp;
XChangeGC( XtDisplay(W.rdata), gc,
GCForeground | GCBackground, &xgcv );
}
XDrawImageString( XtDisplay(W.rdata), XtWindow(W.rdata), gc,
(j < k) ? 2 : w_width / 2,
(j % k + 1) * dv,
buf, strlen( buf ) );
if (Pic.reg_file[a][b].modified_last) {
Pixel temp = xgcv.foreground;
xgcv.foreground = xgcv.background;
xgcv.background = temp;
XChangeGC( XtDisplay(W.rdata), gc,
GCForeground | GCBackground, &xgcv );
}
++j;
}
XFreeGC( XtDisplay(W.rdata), gc );
}
/*
* Display changed registers in reverse video, and reset all previously-
* reversed registers to normal video (if they weren't modified again)
*/
void
reg_update( void )
{
GC gc;
XGCValues xgcv;
XFontStruct *xfsp;
Dimension w_height, w_width;
short c_width;
int a, b, i, j, k, dv;
u_char v;
char buf[32];
XtVaGetValues( W.rdata,
XtNforeground, &xgcv.foreground,
XtNbackground, &xgcv.background,
XtNheight, &w_height,
XtNwidth, &w_width,
XtNfont, &xfsp,
NULL );
xgcv.font = xfsp->fid;
gc = XCreateGC( XtDisplay(W.rdata), XtWindow(W.rdata),
GCForeground | GCBackground | GCFont,
&xgcv );
/*
* count the implemented regsters in the page we're looking at
*/
k = 0;
for (i = 0; i < 128; i++) {
a = Pic.reg_file[Pic.vreg][i].redirect_page;
b = Pic.reg_file[Pic.vreg][i].redirect_reg;
if (Pic.reg_file[a][b].implemented) ++k;
}
k = (k + 1) >> 1;
dv = xfsp->ascent + xfsp->descent;
c_width = xfsp->max_bounds.width;
for (i = j = 0; i < 128; i++) {
a = Pic.reg_file[Pic.vreg][i].redirect_page;
b = Pic.reg_file[Pic.vreg][i].redirect_reg;
if (!Pic.reg_file[a][b].implemented) continue;
if (!(Pic.reg_file[a][b].modified||Pic.reg_file[a][b].modified_last)) {
++j;
continue;
}
v = Pic.reg_file[a][b].value & Pic.reg_file[a][b].implemented;
if (c_width * 16 * 2 <= w_width) {
if (Pic.reg_file[a][b].name)
sprintf( buf, "%.6s:0x%02X '%c'",
Pic.reg_file[a][b].name,
v,
((v >= ' ' && v <= '~') ? v : '.'));
else
sprintf( buf, " F%02X:0x%02X '%c'",
i,
v,
((v >= ' ' && v <= '~') ? v : '.'));
} else {
if (Pic.reg_file[a][b].name)
sprintf( buf, "%.6s:0x%02X", Pic.reg_file[a][b].name, v );
else
sprintf( buf, " F%02X:0x%02X", i, v );
}
if (Pic.reg_file[a][b].modified) {
Pixel temp = xgcv.foreground;
xgcv.foreground = xgcv.background;
xgcv.background = temp;
XChangeGC( XtDisplay(W.rdata), gc,
GCForeground | GCBackground, &xgcv );
}
XDrawImageString( XtDisplay(W.rdata), XtWindow(W.rdata), gc,
(j < k) ? 2 : w_width / 2,
(j % k + 1) * dv,
buf, strlen( buf ) );
if (Pic.reg_file[a][b].modified) {
Pixel temp = xgcv.foreground;
xgcv.foreground = xgcv.background;
xgcv.background = temp;
XChangeGC( XtDisplay(W.rdata), gc,
GCForeground | GCBackground, &xgcv );
}
Pic.reg_file[a][b].modified_last = Pic.reg_file[a][b].modified;
Pic.reg_file[a][b].modified = 0;
++j;
}
XFreeGC( XtDisplay(W.rdata), gc );
}
void
reg_switch( Widget w, XEvent *ev, String *prms, Cardinal *nprm )
{
char buf[32];
if (*nprm == 1) {
if (!strcmp( *prms, "next" )) {
Pic.vreg += 1;
if (Pic.vreg >= Pic.reg_pages) Pic.vreg = 0;
} else
if (!strcmp( *prms, "prev" )) {
Pic.vreg -= 1;
if (Pic.vreg < 0) Pic.vreg = Pic.reg_pages - 1;
} else
goto reg_switch_usage;
sprintf( buf, "Page %d", Pic.vreg );
XtVaSetValues( W.rpage, XtNlabel, (XtPointer)buf, NULL );
reg_refresh( W.rdata, ev, prms, nprm );
return;
}
reg_switch_usage:
fputs( "usage: reg-switch( [ next | prev ] )\n", stderr );
}
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