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GUI: Added disassembly window

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This commit is contained in:
(Tim) Efthimis Kritikos 2024-01-29 12:48:53 +00:00
parent 0cfbf253c9
commit d14c27382b
5 changed files with 88 additions and 6 deletions
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4
Makefile
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@ -1,6 +1,6 @@
all:first
first:gui.o main.o simdata.o
first:gui.o main.o simdata.o assembly.o
gcc -ggdb $^ -fsanitize=address -lncurses -ltinfo -o $@
%.o:%.c
@ -8,4 +8,4 @@ first:gui.o main.o simdata.o
.PHONY: clean
clean:
rm -f gui.o main.o simdata.o
rm -f gui.o main.o simdata.o assembly.o

17
assembly.c Normal file
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@ -0,0 +1,17 @@
#include "assembly.h"
#include <string.h>
#include <stdlib.h>
// Max instruction width is 25 characters without the null char
char *disassemble(uint32_t opcode){
char *ret=malloc(26);
if (!ret)
return NULL;
if(opcode!=0x01ABCDEF)
memcpy(ret,"placeholder",12);
else
memcpy(ret,"easter egg",11);
return ret;
}

3
assembly.h Normal file
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@ -0,0 +1,3 @@
#include "stdint.h"
char* disassemble(uint32_t opcode);

68
gui.c
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@ -20,8 +20,11 @@
#include <ncurses.h>
#include <string.h>
#include "simdata.h"
#include "assembly.h"
#include <stdlib.h>
#define GENERAL_STACK_MAX_WIDTH 16
#define GENERAL_DISAS_WIDTH 41
int terminal_width;
int terminal_height;
@ -29,6 +32,7 @@ int terminal_height;
WINDOW *tabs;
WINDOW *general_memdump;
WINDOW *general_stack;
WINDOW *general_disas;
int monochrome;
@ -50,6 +54,8 @@ int gui_ncurses_refresh(){
return 1;
if(wrefresh(general_stack)==ERR)
return 1;
if(wrefresh(general_disas)==ERR)
return 1;
return 0;
}
@ -126,12 +132,19 @@ int start_gui(){
mvprintw((terminal_height-3)/2+3,terminal_width/2-15,"Initialising the simulator...");
tabs = newwin(1,terminal_width,0,0);
update_tabs();
int len;
int x=4;
general_memdump=newwin(terminal_height*0.8,terminal_width/2,x,5);
x+=terminal_width/2;
x++;
x+=3;
int len=(terminal_width/6)>GENERAL_STACK_MAX_WIDTH?GENERAL_STACK_MAX_WIDTH:(terminal_width/6);
len=(terminal_width/6)>GENERAL_DISAS_WIDTH?GENERAL_DISAS_WIDTH:(terminal_width/6);
general_disas=newwin(terminal_height*0.8,len,4,x);
x+=len;
x+=3;
len=(terminal_width/6)>GENERAL_STACK_MAX_WIDTH?GENERAL_STACK_MAX_WIDTH:(terminal_width/6);
general_stack=newwin(terminal_height*0.8,len,4,x);
x+=len;
@ -156,6 +169,55 @@ int gui_error(char *str){
wattroff(error_win,COLOR_PAIR(1));
}
int update_general_disas(struct simdata_t *simdata){
int width,height;
getmaxyx(general_disas,height,width);
box(general_disas, 0 , 0);
int offset_arrow;
if(width<41)
offset_arrow=2;
else
offset_arrow=3;
mvwprintw(general_disas,0,width/2-7,"[ DISASSEMBLY ]");
if(width<18){
mvwprintw(general_disas,1,1,"too small window");
}else{
uint32_t ADDRESS=(simdata->PC-(height/2-2)*3)&0x00FFFFFF;
for (int i=2;i<height-2;i++){
int overall_offset=offset_arrow-2;
mvwaddch(general_disas,i,11+overall_offset,ACS_VLINE);
if(ADDRESS==simdata->PC)
wattron(general_disas,A_BOLD);
mvwprintw(general_disas,i,4+overall_offset,"%06X",ADDRESS);
char* disas=disassemble(*(uint32_t*)(simdata->RAM+ADDRESS));
int space_left=width-14-2+(overall_offset?0:1);
if(space_left<25)
disas[space_left+1]=0;
mvwprintw(general_disas,i,13+overall_offset,"%s",disas);
if(ADDRESS==simdata->PC)
wattroff(general_disas,A_BOLD);
ADDRESS=(ADDRESS+3)&0xFFFFFF;
free(disas);
}
mvwaddch(general_disas,height/2,offset_arrow,ACS_RARROW);
mvwaddch(general_disas,height/2,offset_arrow-1,ACS_ULCORNER);
mvwaddch(general_disas,height/2+1,offset_arrow-1,ACS_VLINE);
mvwaddch(general_disas,height/2+2,offset_arrow-1,ACS_VLINE);
mvwaddch(general_disas,height/2+3,offset_arrow-1,ACS_VLINE);
mvwaddch(general_disas,height/2+4,offset_arrow-1,ACS_VLINE);
mvwaddch(general_disas,height/2+5,offset_arrow-1,ACS_VLINE);
mvwaddch(general_disas,height/2+6,offset_arrow-1,'P');
if(offset_arrow==2)
mvwaddch(general_disas,height/2+7,offset_arrow-1,'C');
else
mvwaddch(general_disas,height/2+6,offset_arrow,'C');
}
return 0;
}
int update_general_stack(struct simdata_t *simdata){
int width,height;
getmaxyx(general_stack,height,width);
@ -209,9 +271,7 @@ int update_general_stack(struct simdata_t *simdata){
else
mvwaddch(general_stack,height/2+4,offset_arrow,'P');
}
if(height!=1433241)
return 0;
return 1;
}
int update_general_memdump(struct simdata_t *simdata){
@ -251,6 +311,8 @@ int update_gui(struct simdata_t *simdata){
return 1;
if(update_general_stack(simdata))
return 1;
if(update_general_disas(simdata))
return 1;
if(gui_ncurses_refresh())
return 1;
return 0;