void glk_main(void)
{
FILE *f;
int vb,no;
Bottom = glk_window_open(0, 0, 0, wintype_TextBuffer, 1);
if(Bottom == NULL)
glk_exit();
glk_set_window(Bottom);
if(game_file == NULL)
Fatal("No game provided");
f = fopen(game_file, "r");
if(f==NULL)
Fatal("Cannot open game");
if (Options & TRS80_STYLE)
{
Width = 64;
TopHeight = 11;
}
else
{
Width = 80;
TopHeight = 10;
}
if(split_screen)
{
Top = glk_window_open(Bottom, winmethod_Above | winmethod_Fixed, TopHeight, wintype_TextGrid, 0);
if(Top == NULL)
{
split_screen = 0;
Top = Bottom;
}
}
else
{
Top = Bottom;
}
Output("\
Scott Free, A Scott Adams game driver in C.\n\
Release 1.14, (c) 1993,1994,1995 Swansea University Computer Society.\n\
Distributed under the GNU software license\n\n");
LoadDatabase(f,(Options&DEBUGGING)?1:0);
fclose(f);
srand(time(NULL));
while(1)
{
glk_tick();
PerformActions(0,0);
Look();
if(GetInput(&vb,&no) == -1)
continue;
switch(PerformActions(vb,no))
{
case -1:Output("I don't understand your command. ");
break;
case -2:Output("I can't do that yet. ");
break;
}
/* Brian Howarth games seem to use -1 for forever */
if(Items[LIGHT_SOURCE].Location/*==-1*/!=DESTROYED && GameHeader.LightTime!= -1)
{
GameHeader.LightTime--;
if(GameHeader.LightTime<1)
{
BitFlags|=(1<<LIGHTOUTBIT);
if(Items[LIGHT_SOURCE].Location==CARRIED ||
Items[LIGHT_SOURCE].Location==MyLoc)
{
if(Options&SCOTTLIGHT)
Output("Light has run out! ");
else
Output("Your light has run out. ");
}
if(Options&PREHISTORIC_LAMP)
Items[LIGHT_SOURCE].Location=DESTROYED;
}
else if(GameHeader.LightTime<25)
{
if(Items[LIGHT_SOURCE].Location==CARRIED ||
Items[LIGHT_SOURCE].Location==MyLoc)
{
if(Options&SCOTTLIGHT)
{
Output("Light runs out in ");
OutputNumber(GameHeader.LightTime);
Output(" turns. ");
}
else
{
if(GameHeader.LightTime%5==0)
Output("Your light is growing dim. ");
}
}
}
}
}
}
void gidispatch_call(glui32 funcnum, glui32 numargs, gluniversal_t *arglist)
{
gidispatch_function_t *gidispatch_function;
char *prototype;
int argument = 0;
int slot = 0;
gidispatch_function = gidispatch_get_function_by_id(funcnum);
prototype = gidispatch_prototype(funcnum);
printf("DEBUG: dispatch call name=%s, prototype=%s, numargs=%u -- ", gidispatch_function->name, prototype, (unsigned int)numargs);
if (strcmp(prototype, "4IuIuIuIs") == 0) {
printf("%u, %u, %u, %d\n", arglist[0].uint, arglist[1].uint, arglist[2].uint, arglist[3].sint);
} else if (strcmp(prototype, "3IuIu:Iu") == 0) {
printf("%u, %u, returning a glui32\n", arglist[0].uint, arglist[1].uint);
} else if (strcmp(prototype, "3Qa<Iu:Qa") == 0) {
printf("win at %p, outref to a glui32, returning a winid_t\n", arglist[0].opaqueref);
} else if (strcmp(prototype, "3Qc<Iu:Qc") == 0) {
printf("fileref at %p, outref to a glui32, returning a frefid_t\n", arglist[0].opaqueref);
} else if (strcmp(prototype, "1Qa:") == 0) {
printf("win at %p\n", arglist[0].opaqueref);
} else if (strcmp(prototype, "6QaIuIuIuIu:Qa") == 0) {
printf("win at %p, %u, %u, %u, %u, returning a winid_t\n", arglist[0].opaqueref, arglist[1].uint, arglist[2].uint, arglist[3].uint, arglist[4].uint);
} else if (strcmp(prototype, "4IuIuIuIs:") == 0) {
printf("%u, %u, %u, %d\n", arglist[0].uint, arglist[1].uint, arglist[2].uint, arglist[3].sint);
} else if (strcmp(prototype, "1Qb:") == 0) {
printf("stream at %p\n", arglist[0].opaqueref);
} else if (strcmp(prototype, "1Iu:") == 0) {
printf("%u\n", arglist[0].uint);
} else if (strcmp(prototype, "2Qb<[2IuIu]:") == 0) {
printf("stream at %p, some struct stuff here\n", arglist[0].opaqueref);
} else if (strcmp(prototype, "3IuIuIu:") == 0) {
printf("%u, %u, %u\n", arglist[0].uint, arglist[1].uint, arglist[2].uint);
} else if (strcmp(prototype, "1:Qb") == 0) {
printf("returning a strid_t\n");
} else if (strcmp(prototype, "4&+#!IuIuIu:Qb") == 0) {
printf("retained, nonnull, array of glui32 at %p for length %u, %u, %u, returning a strid_t\n", arglist[1].array, arglist[2].uint, arglist[3].uint, arglist[4].uint);
} else if (strcmp(prototype, "2Qc:Iu") == 0) {
printf("fileref at %p, returning a glui32\n", arglist[0].opaqueref);
} else if (strcmp(prototype, "1<+[4IuQaIuIu]:") == 0) {
printf("some struct stuff here, nonnull\n");
} else if (strcmp(prototype, "1:Qb") == 0) {
printf("returning a strid_t\n");
} else if (strcmp(prototype, "2Qb:Is") == 0) {
printf("stream at %p, returning a glsi32\n", arglist[0].opaqueref);
} else if (strcmp(prototype, "2Qc:Iu") == 0) {
printf("fileref at %p, returning a glui32\n", arglist[0].opaqueref);
} else if (strcmp(prototype, "3Qa&+#!CnIu:") == 0) {
printf("win at %p, retained, nonnull, array of char at %p for length %u, %u\n", arglist[0].opaqueref, arglist[2].array, arglist[3].uint, arglist[4].uint);
} else if (strcmp(prototype, "3Qb<Iu:Qb") == 0) {
printf("stream at %p, outref to a glui32, returning a strid_t\n", arglist[0].opaqueref);
} else if (strcmp(prototype, "4&+#!CnIuIu:Qb") == 0) {
printf("retained, nonnull, array of char at %p for length %u, %u, %u, returning a strid_t\n", arglist[1].array, arglist[2].uint, arglist[3].uint, arglist[4].uint);
} else if (strcmp(prototype, "4&+#!IuIuIu:Qb") == 0) {
printf("retained, nonnull, array of glui32 at %p for length %u, %u, %u, returning a strid_t\n", arglist[1].array, arglist[2].uint, arglist[3].uint, arglist[4].uint);
} else if (strcmp(prototype, "4IuSIu:Qc") == 0) {
printf("%u, %s, %u, returning a frefid_t\n", arglist[0].uint, arglist[1].charstr, arglist[2].uint);
} else if (strcmp(prototype, "4QcIuIu:Qb") == 0) {
printf("fileref at %p, %u, %u, returning a strid_t\n", arglist[0].opaqueref, arglist[1].uint, arglist[2].uint);
} else if (strcmp(prototype, "3Qa<Iu<Iu:") == 0) {
printf("win at %p, outref to a glui32, outref to a glui32\n", arglist[0].opaqueref);
} else if (strcmp(prototype, "6QaIuIsIsIuIu:") == 0) {
printf("win at %p, %u, %d, %d, %u, %u\n", arglist[0].opaqueref, arglist[1].uint, arglist[2].sint, arglist[3].sint, arglist[4].uint, arglist[5].uint);
} else if (strcmp(prototype, "4Iu<Iu<Iu:Iu") == 0) {
printf("%u, outref to a glui32, outref to a glui32, returning a glui32\n", arglist[0].uint);
} else {
printf("unhandled prototype\n");
}
switch (funcnum) {
case 0x0004: /* gestalt */
arglist[3].uint = glk_gestalt(arglist[0].uint, arglist[1].uint);
break;
case 0x0005: /* gestalt_ext */
if (arglist[2].ptrflag) {
arglist[6].uint = glk_gestalt_ext(arglist[0].uint, arglist[1].uint,
arglist[3].array, arglist[4].uint);
}
else {
arglist[4].uint = glk_gestalt_ext(arglist[0].uint, arglist[1].uint,
NULL, 0);
}
break;
case 0x0020: /* window_iterate */
if (arglist[1].ptrflag)
arglist[4].opaqueref = glk_window_iterate(arglist[0].opaqueref, &arglist[2].uint);
else
arglist[3].opaqueref = glk_window_iterate(arglist[0].opaqueref, NULL);
break;
case 0x0023: /* window_open */
arglist[6].opaqueref = glk_window_open(arglist[0].opaqueref, arglist[1].uint,
arglist[2].uint, arglist[3].uint, arglist[4].uint);
break;
case 0x0025: /* window_get_size */
{
int ix = 1;
glui32 *ptr1, *ptr2;
if (!arglist[ix].ptrflag) {
ptr1 = NULL;
}
else {
ix++;
ptr1 = &(arglist[ix].uint);
}
ix++;
if (!arglist[ix].ptrflag) {
ptr2 = NULL;
}
else {
ix++;
ptr2 = &(arglist[ix].uint);
}
ix++;
glk_window_get_size(arglist[0].opaqueref, ptr1, ptr2);
}
break;
case 0x0028: /* window_get_type */
arglist[2].uint = glk_window_get_type(arglist[0].opaqueref);
break;
case 0x002A: /* window_clear */
glk_window_clear(arglist[0].opaqueref);
break;
case 0x002B: /* window_move_cursor */
glk_window_move_cursor(arglist[0].opaqueref, arglist[1].uint,
arglist[2].uint);
break;
case 0x002F: /* set_window */
glk_set_window(arglist[0].opaqueref);
break;
case 0x0040: /* stream_iterate */
if (arglist[1].ptrflag)
arglist[4].opaqueref = glk_stream_iterate(arglist[0].opaqueref, &arglist[2].uint);
else
arglist[3].opaqueref = glk_stream_iterate(arglist[0].opaqueref, NULL);
break;
case 0x0042: /* stream_open_file */
arglist[4].opaqueref = glk_stream_open_file(arglist[0].opaqueref, arglist[1].uint,
arglist[2].uint);
break;
case 0x0043: /* stream_open_memory */
if (arglist[0].ptrflag)
arglist[6].opaqueref = glk_stream_open_memory(arglist[1].array,
arglist[2].uint, arglist[3].uint, arglist[4].uint);
else
arglist[4].opaqueref = glk_stream_open_memory(NULL,
0, arglist[1].uint, arglist[2].uint);
break;
case 0x0044: /* stream_close */
if (arglist[1].ptrflag) {
stream_result_t dat;
glk_stream_close(arglist[0].opaqueref, &dat);
arglist[2].uint = dat.readcount;
arglist[3].uint = dat.writecount;
}
else {
glk_stream_close(arglist[0].opaqueref, NULL);
}
break;
case 0x0047: /* stream_set_current */
glk_stream_set_current(arglist[0].opaqueref);
break;
case 0x0048: /* stream_get_current */
arglist[1].opaqueref = glk_stream_get_current();
break;
case 0x0061: /* fileref_create_by_name */
arglist[4].opaqueref = glk_fileref_create_by_name(arglist[0].uint,
arglist[1].charstr, arglist[2].uint);
break;
case 0x0062: /* fileref_create_by_prompt */
arglist[4].opaqueref = glk_fileref_create_by_prompt(arglist[0].uint,
arglist[1].uint, arglist[2].uint);
break;
case 0x0067: /* fileref_does_file_exist */
arglist[2].uint = glk_fileref_does_file_exist(arglist[0].opaqueref);
break;
case 0x0086: /* set_style */
glk_set_style(arglist[0].uint);
break;
case 0x0087: /* set_style_stream */
glk_set_style_stream(arglist[0].opaqueref, arglist[1].uint);
break;
case 0x0090: /* get_char_stream */
arglist[2].sint = glk_get_char_stream(arglist[0].opaqueref);
break;
case 0x00B0: /* stylehint_set */
glk_stylehint_set(arglist[0].uint, arglist[1].uint,
arglist[2].uint, arglist[3].sint);
break;
case 0x00C0: /* select */
if (arglist[0].ptrflag) {
event_t dat;
glk_select(&dat);
arglist[1].uint = dat.type;
arglist[2].opaqueref = dat.win;
arglist[3].uint = dat.val1;
arglist[4].uint = dat.val2;
}
else {
glk_select(NULL);
}
break;
case 0x00D0: /* request_line_event */
if (arglist[1].ptrflag)
glk_request_line_event(arglist[0].opaqueref, arglist[2].array,
arglist[3].uint, arglist[4].uint);
else
glk_request_line_event(arglist[0].opaqueref, NULL,
0, arglist[2].uint);
break;
case 0x00D2: /* request_char_event */
glk_request_char_event(arglist[0].opaqueref);
break;
case 0x00E0: /* image_get_info */
{
int ix = 1;
glui32 *ptr1, *ptr2;
if (!arglist[ix].ptrflag) {
ptr1 = NULL;
}
else {
ix++;
ptr1 = &(arglist[ix].uint);
}
ix++;
if (!arglist[ix].ptrflag) {
ptr2 = NULL;
}
else {
ix++;
ptr2 = &(arglist[ix].uint);
}
ix++;
ix++;
arglist[ix].uint = glk_image_get_info(arglist[0].uint, ptr1, ptr2);
}
break;
case 0x00E1: /* image_draw */
arglist[5].uint = glk_image_draw(arglist[0].opaqueref,
arglist[1].uint,
arglist[2].sint, arglist[3].sint);
break;
case 0x00E2: /* image_draw_scaled */
arglist[7].uint = glk_image_draw_scaled(arglist[0].opaqueref,
arglist[1].uint,
arglist[2].sint, arglist[3].sint,
arglist[4].uint, arglist[5].uint);
break;
case 0x00EA: /* window_fill_rect */
glk_window_fill_rect(arglist[0].opaqueref, arglist[1].uint,
arglist[2].sint, arglist[3].sint,
arglist[4].uint, arglist[5].uint);
break;
case 0x0128: /* put_char_uni */
glk_put_char_uni(arglist[0].uint);
break;
case 0x0139: /* stream_open_memory_uni */
if (arglist[0].ptrflag)
arglist[6].opaqueref = glk_stream_open_memory_uni(arglist[1].array,
arglist[2].uint, arglist[3].uint, arglist[4].uint);
else
arglist[4].opaqueref = glk_stream_open_memory_uni(NULL,
0, arglist[1].uint, arglist[2].uint);
break;
default:
printf("Unhandled call to %s via dispatch\n", gidispatch_function->name);
#if 0
case 0x0001: /* exit */
glk_exit();
break;
case 0x0002: /* set_interrupt_handler */
/* cannot be invoked through dispatch layer */
break;
case 0x0003: /* tick */
glk_tick();
break;
case 0x0021: /* window_get_rock */
arglist[2].uint = glk_window_get_rock(arglist[0].opaqueref);
break;
case 0x0022: /* window_get_root */
arglist[1].opaqueref = glk_window_get_root();
break;
case 0x0024: /* window_close */
if (arglist[1].ptrflag) {
stream_result_t dat;
glk_window_close(arglist[0].opaqueref, &dat);
arglist[2].uint = dat.readcount;
arglist[3].uint = dat.writecount;
}
else {
glk_window_close(arglist[0].opaqueref, NULL);
}
break;
case 0x0026: /* window_set_arrangement */
glk_window_set_arrangement(arglist[0].opaqueref, arglist[1].uint,
arglist[2].uint, arglist[3].opaqueref);
break;
case 0x0027: /* window_get_arrangement */
{
int ix = 1;
glui32 *ptr1, *ptr2;
winid_t *ptr3;
if (!arglist[ix].ptrflag) {
ptr1 = NULL;
}
else {
ix++;
ptr1 = &(arglist[ix].uint);
}
ix++;
if (!arglist[ix].ptrflag) {
ptr2 = NULL;
}
else {
ix++;
ptr2 = &(arglist[ix].uint);
}
ix++;
if (!arglist[ix].ptrflag) {
ptr3 = NULL;
}
else {
ix++;
ptr3 = (winid_t *)(&(arglist[ix].opaqueref));
}
ix++;
glk_window_get_arrangement(arglist[0].opaqueref, ptr1, ptr2, ptr3);
}
break;
case 0x0029: /* window_get_parent */
arglist[2].opaqueref = glk_window_get_parent(arglist[0].opaqueref);
break;
case 0x002C: /* window_get_stream */
arglist[2].opaqueref = glk_window_get_stream(arglist[0].opaqueref);
break;
case 0x002D: /* window_set_echo_stream */
glk_window_set_echo_stream(arglist[0].opaqueref, arglist[1].opaqueref);
break;
case 0x002E: /* window_get_echo_stream */
arglist[2].opaqueref = glk_window_get_echo_stream(arglist[0].opaqueref);
break;
case 0x0030: /* window_get_sibling */
arglist[2].opaqueref = glk_window_get_sibling(arglist[0].opaqueref);
break;
case 0x0041: /* stream_get_rock */
arglist[2].uint = glk_stream_get_rock(arglist[0].opaqueref);
break;
case 0x0045: /* stream_set_position */
glk_stream_set_position(arglist[0].opaqueref, arglist[1].sint,
arglist[2].uint);
break;
case 0x0046: /* stream_get_position */
arglist[2].uint = glk_stream_get_position(arglist[0].opaqueref);
break;
case 0x0048: /* stream_get_current */
arglist[1].opaqueref = glk_stream_get_current();
break;
case 0x0060: /* fileref_create_temp */
arglist[3].opaqueref = glk_fileref_create_temp(arglist[0].uint,
arglist[1].uint);
break;
case 0x0063: /* fileref_destroy */
glk_fileref_destroy(arglist[0].opaqueref);
break;
case 0x0064: /* fileref_iterate */
if (arglist[1].ptrflag)
arglist[4].opaqueref = glk_fileref_iterate(arglist[0].opaqueref, &arglist[2].uint);
else
arglist[3].opaqueref = glk_fileref_iterate(arglist[0].opaqueref, NULL);
break;
case 0x0065: /* fileref_get_rock */
arglist[2].uint = glk_fileref_get_rock(arglist[0].opaqueref);
break;
case 0x0066: /* fileref_delete_file */
glk_fileref_delete_file(arglist[0].opaqueref);
break;
case 0x0068: /* fileref_create_from_fileref */
arglist[4].opaqueref = glk_fileref_create_from_fileref(arglist[0].uint,
arglist[1].opaqueref, arglist[2].uint);
break;
case 0x0080: /* put_char */
glk_put_char(arglist[0].uch);
break;
case 0x0081: /* put_char_stream */
glk_put_char_stream(arglist[0].opaqueref, arglist[1].uch);
break;
case 0x0082: /* put_string */
glk_put_string(arglist[0].charstr);
break;
case 0x0083: /* put_string_stream */
glk_put_string_stream(arglist[0].opaqueref, arglist[1].charstr);
break;
case 0x0084: /* put_buffer */
if (arglist[0].ptrflag)
glk_put_buffer(arglist[1].array, arglist[2].uint);
else
glk_put_buffer(NULL, 0);
break;
case 0x0085: /* put_buffer_stream */
if (arglist[1].ptrflag)
glk_put_buffer_stream(arglist[0].opaqueref,
arglist[2].array, arglist[3].uint);
else
glk_put_buffer_stream(arglist[0].opaqueref,
NULL, 0);
break;
case 0x0091: /* get_line_stream */
if (arglist[1].ptrflag)
arglist[5].uint = glk_get_line_stream(arglist[0].opaqueref,
arglist[2].array, arglist[3].uint);
else
arglist[3].uint = glk_get_line_stream(arglist[0].opaqueref,
NULL, 0);
break;
case 0x0092: /* get_buffer_stream */
if (arglist[1].ptrflag)
arglist[5].uint = glk_get_buffer_stream(arglist[0].opaqueref,
arglist[2].array, arglist[3].uint);
else
arglist[3].uint = glk_get_buffer_stream(arglist[0].opaqueref,
NULL, 0);
break;
case 0x00A0: /* char_to_lower */
arglist[2].uch = glk_char_to_lower(arglist[0].uch);
break;
case 0x00A1: /* char_to_upper */
arglist[2].uch = glk_char_to_upper(arglist[0].uch);
break;
case 0x00B1: /* stylehint_clear */
glk_stylehint_clear(arglist[0].uint, arglist[1].uint,
arglist[2].uint);
break;
case 0x00B2: /* style_distinguish */
arglist[4].uint = glk_style_distinguish(arglist[0].opaqueref, arglist[1].uint,
arglist[2].uint);
break;
case 0x00B3: /* style_measure */
if (arglist[3].ptrflag)
arglist[6].uint = glk_style_measure(arglist[0].opaqueref, arglist[1].uint,
arglist[2].uint, &(arglist[4].uint));
else
arglist[5].uint = glk_style_measure(arglist[0].opaqueref, arglist[1].uint,
arglist[2].uint, NULL);
break;
case 0x00C1: /* select_poll */
if (arglist[0].ptrflag) {
event_t dat;
glk_select_poll(&dat);
arglist[1].uint = dat.type;
arglist[2].opaqueref = dat.win;
arglist[3].uint = dat.val1;
arglist[4].uint = dat.val2;
}
else {
glk_select_poll(NULL);
}
break;
case 0x00D1: /* cancel_line_event */
if (arglist[1].ptrflag) {
event_t dat;
glk_cancel_line_event(arglist[0].opaqueref, &dat);
arglist[2].uint = dat.type;
arglist[3].opaqueref = dat.win;
arglist[4].uint = dat.val1;
arglist[5].uint = dat.val2;
}
else {
glk_cancel_line_event(arglist[0].opaqueref, NULL);
}
break;
case 0x00D3: /* cancel_char_event */
glk_cancel_char_event(arglist[0].opaqueref);
break;
case 0x00D4: /* request_mouse_event */
glk_request_mouse_event(arglist[0].opaqueref);
break;
case 0x00D5: /* cancel_mouse_event */
glk_cancel_mouse_event(arglist[0].opaqueref);
break;
case 0x00D6: /* request_timer_events */
glk_request_timer_events(arglist[0].uint);
break;
#ifdef GLK_MODULE_IMAGE
case 0x00E8: /* window_flow_break */
glk_window_flow_break(arglist[0].opaqueref);
break;
case 0x00E9: /* window_erase_rect */
glk_window_erase_rect(arglist[0].opaqueref,
arglist[1].sint, arglist[2].sint,
arglist[3].uint, arglist[4].uint);
break;
case 0x00EB: /* window_set_background_color */
glk_window_set_background_color(arglist[0].opaqueref, arglist[1].uint);
break;
#endif /* GLK_MODULE_IMAGE */
#ifdef GLK_MODULE_SOUND
case 0x00F0: /* schannel_iterate */
if (arglist[1].ptrflag)
arglist[4].opaqueref = glk_schannel_iterate(arglist[0].opaqueref, &arglist[2].uint);
else
arglist[3].opaqueref = glk_schannel_iterate(arglist[0].opaqueref, NULL);
break;
case 0x00F1: /* schannel_get_rock */
arglist[2].uint = glk_schannel_get_rock(arglist[0].opaqueref);
break;
case 0x00F2: /* schannel_create */
arglist[2].opaqueref = glk_schannel_create(arglist[0].uint);
break;
case 0x00F3: /* schannel_destroy */
glk_schannel_destroy(arglist[0].opaqueref);
break;
case 0x00F8: /* schannel_play */
arglist[3].uint = glk_schannel_play(arglist[0].opaqueref, arglist[1].uint);
break;
case 0x00F9: /* schannel_play_ext */
arglist[5].uint = glk_schannel_play_ext(arglist[0].opaqueref,
arglist[1].uint, arglist[2].uint, arglist[3].uint);
break;
case 0x00FA: /* schannel_stop */
glk_schannel_stop(arglist[0].opaqueref);
break;
case 0x00FB: /* schannel_set_volume */
glk_schannel_set_volume(arglist[0].opaqueref, arglist[1].uint);
break;
case 0x00FC: /* sound_load_hint */
glk_sound_load_hint(arglist[0].uint, arglist[1].uint);
break;
#endif /* GLK_MODULE_SOUND */
#ifdef GLK_MODULE_HYPERLINKS
case 0x0100: /* set_hyperlink */
glk_set_hyperlink(arglist[0].uint);
break;
case 0x0101: /* set_hyperlink_stream */
glk_set_hyperlink_stream(arglist[0].opaqueref, arglist[1].uint);
break;
case 0x0102: /* request_hyperlink_event */
glk_request_hyperlink_event(arglist[0].opaqueref);
break;
case 0x0103: /* cancel_hyperlink_event */
glk_cancel_hyperlink_event(arglist[0].opaqueref);
break;
#endif /* GLK_MODULE_HYPERLINKS */
#ifdef GLK_MODULE_UNICODE
case 0x0120: /* buffer_to_lower_case_uni */
if (arglist[0].ptrflag)
arglist[5].uint = glk_buffer_to_lower_case_uni(arglist[1].array, arglist[2].uint, arglist[3].uint);
else
arglist[3].uint = glk_buffer_to_lower_case_uni(NULL, 0, arglist[1].uint);
break;
case 0x0121: /* buffer_to_upper_case_uni */
if (arglist[0].ptrflag)
arglist[5].uint = glk_buffer_to_upper_case_uni(arglist[1].array, arglist[2].uint, arglist[3].uint);
else
arglist[3].uint = glk_buffer_to_upper_case_uni(NULL, 0, arglist[1].uint);
break;
case 0x0122: /* buffer_to_title_case_uni */
if (arglist[0].ptrflag)
arglist[6].uint = glk_buffer_to_title_case_uni(arglist[1].array, arglist[2].uint, arglist[3].uint, arglist[4].uint);
else
arglist[4].uint = glk_buffer_to_title_case_uni(NULL, 0, arglist[1].uint, arglist[2].uint);
break;
case 0x0129: /* put_string_uni */
glk_put_string_uni(arglist[0].unicharstr);
break;
case 0x012A: /* put_buffer_uni */
if (arglist[0].ptrflag)
glk_put_buffer_uni(arglist[1].array, arglist[2].uint);
else
glk_put_buffer_uni(NULL, 0);
break;
case 0x012B: /* put_char_stream_uni */
glk_put_char_stream_uni(arglist[0].opaqueref, arglist[1].uint);
break;
case 0x012C: /* put_string_stream_uni */
glk_put_string_stream_uni(arglist[0].opaqueref, arglist[1].unicharstr);
break;
case 0x012D: /* put_buffer_stream_uni */
if (arglist[1].ptrflag)
glk_put_buffer_stream_uni(arglist[0].opaqueref,
arglist[2].array, arglist[3].uint);
else
glk_put_buffer_stream_uni(arglist[0].opaqueref,
NULL, 0);
break;
case 0x0130: /* get_char_stream_uni */
arglist[2].sint = glk_get_char_stream_uni(arglist[0].opaqueref);
break;
case 0x0131: /* get_buffer_stream_uni */
if (arglist[1].ptrflag)
arglist[5].uint = glk_get_buffer_stream_uni(arglist[0].opaqueref,
arglist[2].array, arglist[3].uint);
else
arglist[3].uint = glk_get_buffer_stream_uni(arglist[0].opaqueref,
NULL, 0);
break;
case 0x0132: /* get_line_stream_uni */
if (arglist[1].ptrflag)
arglist[5].uint = glk_get_line_stream_uni(arglist[0].opaqueref,
arglist[2].array, arglist[3].uint);
else
arglist[3].uint = glk_get_line_stream_uni(arglist[0].opaqueref,
NULL, 0);
break;
case 0x0138: /* stream_open_file_uni */
arglist[4].opaqueref = glk_stream_open_file_uni(arglist[0].opaqueref, arglist[1].uint,
arglist[2].uint);
break;
case 0x0140: /* request_char_event_uni */
glk_request_char_event_uni(arglist[0].opaqueref);
break;
case 0x0141: /* request_line_event_uni */
if (arglist[1].ptrflag)
glk_request_line_event_uni(arglist[0].opaqueref, arglist[2].array,
arglist[3].uint, arglist[4].uint);
else
glk_request_line_event_uni(arglist[0].opaqueref, NULL,
0, arglist[2].uint);
break;
#endif /* GLK_MODULE_UNICODE */
#endif /* 0 */
}
}
void process_instructions(void)
{
if(njumps <= ++ilevel)
{
jumps = realloc(jumps, ++njumps * sizeof *jumps);
if(jumps == NULL) die("unable to allocate memory for jump buffer");
}
switch(setjmp(jumps[ilevel]))
{
case 1: /* Normal break from interrupt. */
return;
case 2: /* Special break: a restart was requested. */
{
/* §6.1.3: Flags2 is preserved on a restart. */
uint16_t flags2 = WORD(0x10);
process_story();
STORE_WORD(0x10, flags2);
}
break;
}
while(1)
{
uint8_t opcode;
#if defined(ZTERP_GLK) && defined(ZTERP_GLK_TICK)
glk_tick();
#endif
ZPC(pc);
opcode = BYTE(pc++);
/* long 2OP */
if(opcode < 0x80)
{
znargs = 2;
if(opcode & 0x40) zargs[0] = variable(BYTE(pc++));
else zargs[0] = BYTE(pc++);
if(opcode & 0x20) zargs[1] = variable(BYTE(pc++));
else zargs[1] = BYTE(pc++);
op_call(TWO, opcode & 0x1f);
}
/* short 1OP */
else if(opcode < 0xb0)
{
znargs = 1;
if(opcode < 0x90) /* large constant */
{
zargs[0] = WORD(pc);
pc += 2;
}
else if(opcode < 0xa0) /* small constant */
{
zargs[0] = BYTE(pc++);
}
else /* variable */
{
zargs[0] = variable(BYTE(pc++));
}
op_call(ONE, opcode & 0x0f);
}
/* short 0OP (plus EXT) */
else if(opcode < 0xc0)
{
znargs = 0;
op_call(ZERO, opcode & 0x0f);
}
/* variable 2OP */
else if(opcode < 0xe0)
{
znargs = 0;
decode_var(BYTE(pc++));
op_call(TWO, opcode & 0x1f);
}
/* Double variable VAR */
else if(opcode == 0xec || opcode == 0xfa)
{
uint8_t types1, types2;
znargs = 0;
types1 = BYTE(pc++);
types2 = BYTE(pc++);
decode_var(types1);
decode_var(types2);
op_call(VAR, opcode & 0x1f);
}
/* variable VAR */
else
{
znargs = 0;
read_pc = pc - 1;
decode_var(BYTE(pc++));
op_call(VAR, opcode & 0x1f);
}
}
}
void decode(void)
{
unsigned optypes;
int maxoperands;
while(!exit_decoder) {
#ifdef ANDGLK
extern int do_autosave;
extern char AUTOSAVE_FILE[];
extern offset stack_pointer;
extern zword *local_vars;
extern zword frame_count;
offset save_pcp = PC;
offset save_oldpcp = oldPC;
offset save_sp = stack_pointer;
zword* save_fp = local_vars;
zword save_optypes = optypes;
zword save_maxoperands = maxoperands;
int save_frame_count = frame_count;
zword save_zargs[8] = { operand[0], operand[1], operand[2], operand[3],
operand[4], operand[5], operand[6], operand[7] };
int zarg_ix, save_zargc = 0; //zargc;
#endif
zbyte opcode = HIBYTE(PC);
//LOGD("state: PC:%x op:%x", (glui32)PC, (glui32)opcode);
oldPC = PC;
#ifdef DEBUGGING
if(do_check_watches)
check_watches();
#endif
PC++;
#ifndef NO_TICK
glk_tick(); /* tick tock hickery dock the mouse ran up the clock */
#endif
/* Top bits decide opcode/operand encoding */
switch(opcode >> 4) {
case 0: case 1: /* long 2OP */
operand[0] = HIBYTE(PC); /* small constant */
operand[1] = HIBYTE(PC+1); /* small constant */
numoperands = 2; PC += 2;
opcode += OFFSET_2OP - 0x00;
break;
case 2: case 3: /* long 2OP */
operand[0] = HIBYTE(PC); /* small constant */
operand[1] = get_var(HIBYTE(PC+1)); /* variable */
numoperands = 2; PC += 2;
opcode += OFFSET_2OP - 0x20;
break;
case 4: case 5: /* long 2OP */
operand[0] = get_var(HIBYTE(PC)); /* variable */
operand[1] = HIBYTE(PC+1); /* small constant */
numoperands = 2; PC += 2;
opcode += OFFSET_2OP - 0x40;
break;
case 6: case 7: /* long 2OP */
operand[0] = get_var(HIBYTE(PC)); /* variable */
operand[1] = get_var(HIBYTE(PC+1)); /* variable */
numoperands = 2; PC += 2;
opcode += OFFSET_2OP - 0x60;
break;
case 8: /* short 1OP */
operand[0] = HIWORD(PC); /* large constant */
numoperands = 1; PC += ZWORD_SIZE;
opcode += OFFSET_1OP - 0x80;
break;
case 9: /* short 1OP */
operand[0] = HIBYTE(PC); /* small constant */
numoperands = 1; PC += 1;
opcode += OFFSET_1OP - 0x90;
break;
case 10: /* short 1OP */
operand[0] = get_var(HIBYTE(PC)); /* variable */
numoperands = 1; PC += 1;
opcode += OFFSET_1OP - 0xa0;
break;
case 11: /* short 0OP */
if(opcode != 0xbe) {
numoperands = 0;
opcode += OFFSET_0OP - 0xb0;
break;
}
/* EXTENDED */
opcode = HIBYTE(PC); /* Get the extended opcode */
optypes = HIBYTE(PC+1);
PC += 2;
#ifndef FAST
if(OFFSET_EXT + opcode > OFFSET_END) {
n_show_error(E_INSTR, "unknown extended opcode", opcode);
break;
}
#endif
for(numoperands = 0; numoperands < 4; numoperands++) {
switch(optypes & (3 << 6)) { /* Look at the highest two bits. */
case 0 << 6:
operand[numoperands] = HIWORD(PC); PC+=ZWORD_SIZE; break;
case 1 << 6:
operand[numoperands] = HIBYTE(PC); PC++; break;
case 2 << 6:
operand[numoperands] = get_var(HIBYTE(PC)); PC++; break;
default:
goto END_OF_EXTENDED; /* inky says, "use the goto." */
}
optypes <<= 2; /* Move the next two bits into position. */
}
END_OF_EXTENDED:
opcode += OFFSET_EXT;
break;
case 12: case 13: case 14: case 15: /* variable operand count */
maxoperands = 4;
optypes = ((unsigned) HIBYTE(PC)) << 8; /* Shift left so our loop will */
/* be the same for both 4 and 8 operands */
PC++;
if(opcode == 0xec || opcode == 0xfa) { /* call_vs2 and call_vn2 */
maxoperands = 8;
optypes |= HIBYTE(PC); /* Fill the bottom 8 bits */
PC++;
}
for(numoperands = 0; numoperands < maxoperands; numoperands++) {
switch(optypes & (3 << 14)) { /* Look at the highest two bits. */
case 0 << 14:
operand[numoperands] = HIWORD(PC); PC+=ZWORD_SIZE; break;
case 1 << 14:
operand[numoperands] = HIBYTE(PC); PC++; break;
case 2 << 14:
operand[numoperands] = get_var(HIBYTE(PC)); PC++; break;
default:
goto END_OF_VARIABLE;
}
optypes <<= 2; /* Move the next two bits into position. */
}
END_OF_VARIABLE:
opcode += OFFSET_2OP - 0xc0;
break;
}
opcodetable[opcode]();
#ifdef ANDGLK
if (do_autosave) {
PC = save_pcp;
oldPC = save_oldpcp;
stack_pointer = save_sp;
local_vars = save_fp;
numoperands = save_zargc;
frame_count = save_frame_count;
for (zarg_ix=0; zarg_ix<8; ++zarg_ix)
operand[zarg_ix] = save_zargs[zarg_ix];
optypes = save_optypes;
maxoperands = save_maxoperands;
savegame();
do_autosave = 0;
AUTOSAVE_FILE[0] = '\0';
continue;
}
#endif
}
}
