- initial import

1 files changed, 353 insertions, 0 deletions

diff --git a/tests/testbios.c b/tests/testbios.c
new file mode 100644
index 0000000..99da5a6
--- /dev/null
+++ b/tests/testbios.c
@@ -0,0 +1,353 @@
+/* 

+   This is a little turbo C program that executes

+   several int10, and let you inspect the content

+   of the vgabios area

+

+   It is used to test the behavior of the vgabios

+*/

+

+#include <stdio.h>

+#include <dos.h>

+#include <conio.h>

+

+

+typedef unsigned char  Bit8u;

+typedef unsigned short Bit16u;

+

+typedef struct

+{Bit8u initial;

+ Bit8u current;

+ Bit16u nbcols;

+ Bit16u regen;

+ Bit16u start;

+ Bit16u curpos[8];

+ Bit8u curtyp;

+ Bit8u curpage;

+ Bit16u crtc;

+ Bit16u msr;

+ Bit16u cgapal;

+ Bit8u nbrows;

+ Bit16u cheight;

+ Bit8u ctl;

+ Bit8u switches;

+ Bit8u modeset;

+ Bit8u dcc;

+ Bit16u vsseg;

+ Bit16u vsoffset;

+} BIOSAREA;

+

+void int10ax0003(struct REGPACK *regs)

+{

+ regs->r_ax=0x0003;

+ intr(0x10,regs);

+}

+

+void int10ax02(struct REGPACK *regs)

+{

+ regs->r_ax=0x0200;

+ regs->r_bx=0x0000;

+ regs->r_dx=0x1710;

+ intr(0x10,regs);

+ printf("We are now at 24/17");

+}

+

+void int10ax03(struct REGPACK *regs)

+{

+ regs->r_ax=0x0300;

+ regs->r_bx=0x0000;

+ intr(0x10,regs);

+ printf("\nCursor is ax%04x cx%04x dx%04x\n",regs->r_ax,regs->r_cx,regs->r_dx);

+}

+

+void int10ax0501(struct REGPACK *regs)

+{

+ regs->r_ax=0x0501;

+ intr(0x10,regs);

+ regs->r_ax=0x0e61;

+ regs->r_bx=0x0000;

+ intr(0x10,regs);

+ printf("We are now on page 2");

+}

+

+void int10ax0602(struct REGPACK *regs)

+{

+ regs->r_ax=0x0602;

+ regs->r_bx=0x0700;

+ regs->r_cx=0x0101;

+ regs->r_dx=0x0a0a;

+ intr(0x10,regs);

+ printf("Scrolled 2 up");

+}

+

+void int10ax0702(struct REGPACK *regs)

+{

+ regs->r_ax=0x0702;

+ regs->r_bx=0x0700;

+ regs->r_cx=0x0101;

+ regs->r_dx=0x0a0a;

+ intr(0x10,regs);

+ printf("Scrolled 2 down");

+}

+

+void int10ax08(struct REGPACK *regs)

+{

+ regs->r_ax=0x0800;

+ regs->r_bx=0x0000;

+ intr(0x10,regs);

+}

+

+void int10ax09(struct REGPACK *regs)

+{

+ char attr;

+ regs->r_ax=0x0501;

+ intr(0x10,regs);

+ for(attr=0;attr<16;attr++)

+  {printf("%02x ",attr);

+   regs->r_ax=0x0961+attr;

+   regs->r_bx=0x0100+attr;

+   regs->r_cx=0x0016;

+   intr(0x10,regs);

+   printf("\n");

+  }

+}

+

+void int10ax0a(struct REGPACK *regs)

+{

+ regs->r_ax=0x0501;

+ intr(0x10,regs);

+ regs->r_ax=0x0a62;

+ regs->r_bx=0x0101;

+ regs->r_cx=0x0016;

+ intr(0x10,regs);

+}

+

+void int10ax0f(struct REGPACK *regs)

+{

+ regs->r_ax=0x0501;

+ intr(0x10,regs);

+ regs->r_ax=0x0f00;

+ intr(0x10,regs);

+}

+

+void int10ax1b(struct REGPACK *regs)

+{unsigned char table[64];

+ unsigned char far *ptable;

+ int  i;

+

+ regs->r_ax=0x0501;

+ intr(0x10,regs);

+ regs->r_ax=0x1b00;

+ regs->r_bx=0x0000;

+ ptable=&table;

+ regs->r_es=FP_SEG(ptable);

+ regs->r_di=FP_OFF(ptable);

+ printf("Read state info in %04x:%04x\n",regs->r_es,regs->r_di);

+ intr(0x10,regs);

+

+ for(i=0;i<64;i++)

+  {if(i%16==0)printf("\n%02x ",i);

+   printf("%02x ",table[i]);

+  }

+ printf("\n");

+}

+

+static unsigned char var[64];

+

+void int10ax13(struct REGPACK *regs)

+{unsigned char far *pvar;

+

+ pvar=&var;

+

+ regs->r_ax=0x1300;

+ regs->r_bx=0x000b;

+ regs->r_dx=0x1010;

+ regs->r_cx=0x0002;

+ regs->r_es=FP_SEG(pvar);

+ regs->r_bp=FP_OFF(pvar);

+ pokeb(regs->r_es,regs->r_bp,'t');

+ pokeb(regs->r_es,regs->r_bp+1,'b');

+ printf("Writing from %04x:%04x\n",regs->r_es,regs->r_bp);

+ intr(0x10,regs);

+ 

+}

+

+void switch_50(struct REGPACK *regs)

+{

+ regs->r_ax=0x1202;

+ regs->r_bx=0x3000;

+ intr(0x10,regs);

+ regs->r_ax=0x0003;

+ intr(0x10,regs);

+ regs->r_ax=0x1112;

+ regs->r_bx=0x0000;

+ intr(0x10,regs);

+}

+

+char exec_function(struct REGPACK *regs)

+{char c;

+

+ printf("--- Functions --------------------\n");

+ printf("a. int10 ax0003\t");

+ printf("b. int10 ax02\t");

+ printf("c. int10 ax03\t");

+ printf("d. int10 ax0501\n");

+ printf("e. int10 ax0602\t");

+ printf("f. int10 ax0702\t");

+ printf("g. int10 ax08\t");

+ printf("h. int10 ax09\t");

+ printf("i. int10 ax0a\n");

+ printf("j. int10 ax0f\t");

+ printf("k. int10 ax1b\t");

+ printf("l. int10 ax13\n");

+ printf("q. Quit\t");

+ printf("r. switch to 50 lines\n");

+ c=getche();

+ 

+ switch(c)

+  {case 'a':

+    int10ax0003(regs);

+    break;

+   case 'b':

+    int10ax02(regs);

+    break;

+   case 'c':

+    int10ax03(regs);

+    break;

+   case 'd':

+    int10ax0501(regs);

+    break;

+   case 'e':

+    int10ax0602(regs);

+    break;

+   case 'f':

+    int10ax0702(regs);

+    break;

+   case 'g':

+    int10ax08(regs);

+    break;

+   case 'h':

+    int10ax09(regs);

+    break;

+   case 'i':

+    int10ax0a(regs);

+    break;

+   case 'j':

+    int10ax0f(regs);

+    break;

+   case 'k':

+    int10ax1b(regs);

+    break;

+   case 'l':

+    int10ax13(regs);

+    break;

+   case 'q':

+    break;

+   case 'r':

+    switch_50(regs);

+    break;

+   default:

+    printf("No such function!\n");

+  }

+

+ if(c=='q')return 1;

+ while(kbhit()==0);

+ c=getch();

+ 

+ return 0;

+}

+

+void read_bios_area(BIOSAREA *biosarea)

+{

+ biosarea->initial=peekb(0x40,0x10);

+ biosarea->current=peekb(0x40,0x49);

+ biosarea->nbcols=peek(0x40,0x4a);

+ biosarea->regen=peek(0x40,0x4c);

+ biosarea->start=peek(0x40,0x4e);

+ biosarea->curpos[0]=peek(0x40,0x50);

+ biosarea->curpos[1]=peek(0x40,0x52);

+ biosarea->curpos[2]=peek(0x40,0x54);

+ biosarea->curpos[3]=peek(0x40,0x56);

+ biosarea->curpos[4]=peek(0x40,0x58);

+ biosarea->curpos[5]=peek(0x40,0x5a);

+ biosarea->curpos[6]=peek(0x40,0x5c);

+ biosarea->curpos[7]=peek(0x40,0x5e);

+ biosarea->curtyp=peek(0x40,0x60);

+ biosarea->curpage=peekb(0x40,0x62);

+ biosarea->crtc=peek(0x40,0x63);

+ biosarea->msr=peekb(0x40,0x65);

+ biosarea->cgapal=peekb(0x40,0x66);

+ biosarea->nbrows=peekb(0x40,0x84);

+ biosarea->cheight=peek(0x40,0x85);

+ biosarea->ctl=peekb(0x40,0x87);

+ biosarea->switches=peekb(0x40,0x88);

+ biosarea->modeset=peekb(0x40,0x89);

+ biosarea->dcc=peekb(0x40,0x8a);

+ biosarea->vsseg=peek(0x40,0xa8);

+ biosarea->vsoffset=peek(0x40,0xaa);

+}

+

+void show_bios_area(BIOSAREA *biosarea)

+{

+ printf("--- BIOS area --------------------\n");

+ printf("initial : %02x\t",biosarea->initial);

+ printf("current : %02x\t",biosarea->current);

+ printf("nbcols  : %04x\t",biosarea->nbcols);

+ printf("regen   : %04x\t",biosarea->regen);

+ printf("start   : %04x\n",biosarea->start);

+ printf("curpos  : %04x %04x %04x %04x %04x %04x %04x %04x\n",

+   biosarea->curpos[0], biosarea->curpos[1], biosarea->curpos[2], biosarea->curpos[3],

+   biosarea->curpos[4], biosarea->curpos[5], biosarea->curpos[6], biosarea->curpos[7]);

+ printf("curtyp  : %04x\t",biosarea->curtyp);

+ printf("curpage : %02x\t",biosarea->curpage);

+ printf("crtc    : %04x\t",biosarea->crtc);

+ printf("msr     : %04x\n",biosarea->msr);

+ printf("cgapal  : %04x\t",biosarea->cgapal);

+ printf("nbrows-1: %02x\t",biosarea->nbrows);

+ printf("cheight : %04x\t",biosarea->cheight);

+ printf("ctl     : %02x\n",biosarea->ctl);

+ printf("switches: %02x\t",biosarea->switches);

+ printf("modeset : %02x\t",biosarea->modeset);

+ printf("dcc     : %02x\t",biosarea->dcc);

+ printf("vs      : %04x:%04x\n",biosarea->vsseg,biosarea->vsoffset);

+}

+

+void show_regs(struct REGPACK *regs)

+{

+ printf("--- Registers --------------------\n");

+ printf("ax %04x\t",regs->r_ax);

+ printf("bx %04x\t",regs->r_bx);

+ printf("cx %04x\t",regs->r_cx);

+ printf("dx %04x\t",regs->r_dx);

+ printf("ds %04x\t",regs->r_ds);

+ printf("si %04x\t",regs->r_si);

+ printf("es %04x\t",regs->r_es);

+ printf("di %04x\n",regs->r_di);

+}

+

+void reset_videomode()

+{

+ struct REGPACK regs;

+

+ regs.r_ax=0x0003;

+ intr(0x10,&regs);

+}

+

+void main()

+{

+

+ BIOSAREA biosarea;

+ struct REGPACK regs;

+

+ directvideo=0;

+ 

+ while(1)

+  {

+   read_bios_area(&biosarea);

+

+   reset_videomode();

+   show_bios_area(&biosarea);

+   show_regs(&regs);

+

+   if(exec_function(&regs)!=0)break;

+  }

+}