2021-07-03 05:07:57 +01:00
<!DOCTYPE HTML>
< html >
< head >
< meta http-equiv = "Content-Type" content = "text/html;charset=US-ASCII" >
2021-08-15 07:23:46 +01:00
< meta name = "generator" content = "ZealOS V0.16" >
2021-07-03 05:07:57 +01:00
< style type = "text/css" >
2021-07-29 03:20:15 +01:00
body {background-color:#fef1f0;}
.cF0{color:#000000;background-color:#fef1f0;}
.cF1{color:#0148a4;background-color:#fef1f0;}
.cF2{color:#3b7901;background-color:#fef1f0;}
.cF3{color:#057c7e;background-color:#fef1f0;}
.cF4{color:#bb2020;background-color:#fef1f0;}
.cF5{color:#9e42ae;background-color:#fef1f0;}
.cF6{color:#b57901;background-color:#fef1f0;}
.cF7{color:#b2b6af;background-color:#fef1f0;}
.cF8{color:#555753;background-color:#fef1f0;}
.cF9{color:#678fbb;background-color:#fef1f0;}
.cFA{color:#82bc49;background-color:#fef1f0;}
.cFB{color:#0097a2;background-color:#fef1f0;}
.cFC{color:#e26a6a;background-color:#fef1f0;}
.cFD{color:#c671bc;background-color:#fef1f0;}
.cFE{color:#c7ab00;background-color:#fef1f0;}
.cFF{color:#fef1f0;background-color:#fef1f0;}
2021-07-03 05:07:57 +01:00
< / style >
< / head >
< body >
2021-07-05 01:12:38 +01:00
< pre style = "font-family:monospace;font-size:12pt" >
2021-07-03 05:07:57 +01:00
< a name = "l1" > < / a > < span class = cF2 > /*ZealOS runs exclusively in ring 0.< / span > < span class = cF0 >
2021-07-26 20:29:49 +01:00
< a name = "l2" > < / a > < / span > < span class = cF2 > Ring 0 is part of the < / span > < a href = "https://zeal-operating-system.github.io/ZealOS/Doc/Charter.DD.html#l1" > < span class = cF4 > Charter< / span > < / a > < span class = cF2 > .< / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = "l3" > < / a > < / span > < span class = cF2 > This demo is for you to play around< / span > < span class = cF0 >
< a name = "l4" > < / a > < / span > < span class = cF2 > with ring 3.< / span > < span class = cF0 > < / span > < span class = cF2 > ZealOS is for< / span > < span class = cF0 >
< a name = "l5" > < / a > < / span > < span class = cF2 > recreational programming, after all.< / span > < span class = cF0 >
< a name = "l6" > < / a >
< a name = "l7" > < / a > < / span > < span class = cF2 > This redirects the general protection< / span > < span class = cF0 >
< a name = "l8" > < / a > < / span > < span class = cF2 > fault, switches to ring 3, and generates< / span > < span class = cF0 >
< a name = "l9" > < / a > < / span > < span class = cF2 > a fault to switch back.< / span > < span class = cF0 >
< a name = "l10" > < / a > < / span > < span class = cF2 > */< / span > < span class = cF0 >
< a name = "l11" > < / a >
< a name = "l12" > < / a > < / span > < span class = cF1 > U8< / span > < span class = cF0 > *old_stack, *new_rip;
< a name = "l13" > < / a >
< a name = "l14" > < / a > < / span > < span class = cF1 > asm< / span > < span class = cF0 > {
< a name = "l15" > < / a > INT_TO_RING0:: < / span > < span class = cF2 > //Set to handle general protection 0xD fault temporarily.< / span > < span class = cF0 >
2021-07-04 23:11:34 +01:00
< a name = "l16" > < / a > < / span > < span class = cF1 > INC< / span > < span class = cF0 > < / span > < span class = cF9 > U64< / span > < span class = cF0 > [< / span > < span class = cFD > SYS_PROGRESS1< / span > < span class = cF0 > ]
< a name = "l17" > < / a > < / span > < span class = cF1 > PUSH< / span > < span class = cF0 > < / span > < span class = cF9 > U32< / span > < span class = cF0 > < / span > < span class = cF9 > CGDT< / span > < span class = cF0 > .ds < / span > < span class = cF2 > //STACKSEG< / span > < span class = cF0 >
< a name = "l18" > < / a > < / span > < span class = cF1 > MOV< / span > < span class = cF0 > < / span > < span class = cFC > RAX< / span > < span class = cF0 > , < / span > < span class = cF9 > U64< / span > < span class = cF0 > [& old_stack]
< a name = "l19" > < / a > < / span > < span class = cF1 > PUSH< / span > < span class = cF0 > < / span > < span class = cFC > RAX< / span > < span class = cF0 >
< a name = "l20" > < / a > < / span > < span class = cF1 > PUSH< / span > < span class = cF0 > < / span > < span class = cF9 > U32< / span > < span class = cF0 > < / span > < span class = cFE > 0< / span > < span class = cF0 > < / span > < span class = cF2 > //FLAGS--interrupts off< / span > < span class = cF0 >
< a name = "l21" > < / a > < / span > < span class = cF1 > PUSH< / span > < span class = cF0 > < / span > < span class = cF9 > U32< / span > < span class = cF0 > < / span > < span class = cF9 > CGDT< / span > < span class = cF0 > .cs64
< a name = "l22" > < / a > < / span > < span class = cF1 > MOV< / span > < span class = cF0 > < / span > < span class = cFC > RAX< / span > < span class = cF0 > , < / span > < span class = cF9 > U64< / span > < span class = cF0 > [& new_rip]
< a name = "l23" > < / a > < / span > < span class = cF1 > PUSH< / span > < span class = cF0 > < / span > < span class = cFC > RAX< / span > < span class = cF0 >
< a name = "l24" > < / a > < / span > < span class = cF1 > IRET< / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = "l25" > < / a > }
< a name = "l26" > < / a >
< a name = "l27" > < / a > < / span > < span class = cF1 > U0< / span > < span class = cF0 > Ring3Demo()
< a name = "l28" > < / a > {
2021-07-04 23:11:34 +01:00
< a name = "l29" > < / a > < / span > < span class = cF1 > U8< / span > < span class = cF0 > *old_vect;
2021-07-03 05:07:57 +01:00
< a name = "l30" > < / a >
2021-07-04 23:11:34 +01:00
< a name = "l31" > < / a > < / span > < span class = cF6 > " Progress1 Before:%X\n" < / span > < span class = cF0 > , < / span > < span class = cFB > progress1< / span > < span class = cF0 > ;
< a name = "l32" > < / a > < / span > < span class = cF1 > CLI< / span > < span class = cF0 >
< a name = "l33" > < / a > old_vect = < / span > < span class = cF5 > IntEntrySet< / span > < span class = cF0 > (< / span > < span class = cFE > 0x0D< / span > < span class = cF0 > , INT_TO_RING0, < / span > < span class = cF3 > IDTET_TRAP< / span > < span class = cF0 > );
2021-07-03 05:07:57 +01:00
< a name = "l34" > < / a >
2021-07-04 23:11:34 +01:00
< a name = "l35" > < / a > < / span > < span class = cF5 > TSSBusy< / span > < span class = cF0 > (< / span > < span class = cF5 > Gs< / span > < span class = cF0 > -> tss-> tr_ring3, < / span > < span class = cF3 > OFF< / span > < span class = cF0 > );
< a name = "l36" > < / a > < / span > < span class = cF5 > RAXSet< / span > < span class = cF0 > (< / span > < span class = cF5 > Gs< / span > < span class = cF0 > -> tss-> tr_ring3 + < / span > < span class = cFE > 3< / span > < span class = cF0 > );
< a name = "l37" > < / a > < / span > < span class = cF1 > LTR< / span > < span class = cF0 > < / span > < span class = cFC > AX< / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = "l38" > < / a >
2021-07-04 23:11:34 +01:00
< a name = "l39" > < / a > < / span > < span class = cF1 > asm< / span > < span class = cF0 > < / span > < span class = cF7 > {< / span > < span class = cF0 >
< a name = "l40" > < / a > < / span > < span class = cF1 > MOV< / span > < span class = cF0 > < / span > < span class = cF9 > U64< / span > < span class = cF0 > [& old_stack], < / span > < span class = cFC > RSP< / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = "l41" > < / a >
2021-07-04 23:11:34 +01:00
< a name = "l42" > < / a > < / span > < span class = cF1 > LEA< / span > < span class = cF0 > < / span > < span class = cFC > RAX< / span > < span class = cF0 > , [R3_CALLBACK]
< a name = "l43" > < / a > < / span > < span class = cF1 > MOV< / span > < span class = cF0 > < / span > < span class = cF9 > U64< / span > < span class = cF0 > [& new_rip], < / span > < span class = cFC > RAX< / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = "l44" > < / a >
2021-07-04 23:11:34 +01:00
< a name = "l45" > < / a > < / span > < span class = cF1 > MOV< / span > < span class = cF0 > < / span > < span class = cFC > AX< / span > < span class = cF0 > , < / span > < span class = cF9 > CGDT< / span > < span class = cF0 > .ds_ring3 + < / span > < span class = cFE > 3< / span > < span class = cF0 >
< a name = "l46" > < / a > < / span > < span class = cF1 > MOV< / span > < span class = cF0 > < / span > < span class = cFC > DS< / span > < span class = cF0 > , < / span > < span class = cFC > AX< / span > < span class = cF0 >
< a name = "l47" > < / a > < / span > < span class = cF1 > MOV< / span > < span class = cF0 > < / span > < span class = cFC > ES< / span > < span class = cF0 > , < / span > < span class = cFC > AX< / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = "l48" > < / a >
2021-07-04 23:11:34 +01:00
< a name = "l49" > < / a > < / span > < span class = cF1 > PUSH< / span > < span class = cF0 > < / span > < span class = cF9 > U32< / span > < span class = cF0 > < / span > < span class = cF9 > CGDT< / span > < span class = cF0 > .ds_ring3 + < / span > < span class = cFE > 3< / span > < span class = cF0 > < / span > < span class = cF2 > //STACKSEG< / span > < span class = cF0 >
< a name = "l50" > < / a > < / span > < span class = cF1 > PUSH< / span > < span class = cF0 > < / span > < span class = cF9 > U64< / span > < span class = cF0 > [& old_stack]
< a name = "l51" > < / a > < / span > < span class = cF1 > PUSH< / span > < span class = cF0 > < / span > < span class = cF9 > U32< / span > < span class = cF0 > < / span > < span class = cFE > 0< / span > < span class = cF0 > < / span > < span class = cF2 > //FLAGS--interrupts off< / span > < span class = cF0 >
< a name = "l52" > < / a > < / span > < span class = cF1 > PUSH< / span > < span class = cF0 > < / span > < span class = cF9 > U32< / span > < span class = cF0 > < / span > < span class = cF9 > CGDT< / span > < span class = cF0 > .cs64_ring3 + < / span > < span class = cFE > 3< / span > < span class = cF0 >
< a name = "l53" > < / a > < / span > < span class = cF1 > LEA< / span > < span class = cF0 > < / span > < span class = cFC > RAX< / span > < span class = cF0 > , [R3_START]
< a name = "l54" > < / a > < / span > < span class = cF1 > PUSH< / span > < span class = cF0 > < / span > < span class = cFC > RAX< / span > < span class = cF0 >
< a name = "l55" > < / a > < / span > < span class = cF1 > IRET< / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = "l56" > < / a >
2021-07-04 23:11:34 +01:00
< a name = "l57" > < / a > R3_START:
< a name = "l58" > < / a > < / span > < span class = cF1 > INC< / span > < span class = cF0 > < / span > < span class = cF9 > U64< / span > < span class = cF0 > [< / span > < span class = cFD > SYS_PROGRESS1< / span > < span class = cF0 > ]
< a name = "l59" > < / a > < / span > < span class = cF1 > CLI< / span > < span class = cF0 > < / span > < span class = cF2 > //This causes general protection fault #13< / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = "l60" > < / a >
2021-07-04 23:11:34 +01:00
< a name = "l61" > < / a > R3_CALLBACK:
< a name = "l62" > < / a > < / span > < span class = cF1 > MOV< / span > < span class = cF0 > < / span > < span class = cFC > AX< / span > < span class = cF0 > , < / span > < span class = cF9 > CGDT< / span > < span class = cF0 > .ds
< a name = "l63" > < / a > < / span > < span class = cF1 > MOV< / span > < span class = cF0 > < / span > < span class = cFC > DS< / span > < span class = cF0 > , < / span > < span class = cFC > AX< / span > < span class = cF0 >
< a name = "l64" > < / a > < / span > < span class = cF1 > MOV< / span > < span class = cF0 > < / span > < span class = cFC > ES< / span > < span class = cF0 > , < / span > < span class = cFC > AX< / span > < span class = cF0 >
< a name = "l65" > < / a > < / span > < span class = cF7 > }< / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = "l66" > < / a >
2021-07-04 23:11:34 +01:00
< a name = "l67" > < / a > < / span > < span class = cF5 > TSSBusy< / span > < span class = cF0 > (< / span > < span class = cF5 > Gs< / span > < span class = cF0 > -> tss-> tr, < / span > < span class = cF3 > OFF< / span > < span class = cF0 > );
< a name = "l68" > < / a > < / span > < span class = cF5 > RAXSet< / span > < span class = cF0 > (< / span > < span class = cF5 > Gs< / span > < span class = cF0 > -> tss-> tr);
< a name = "l69" > < / a > < / span > < span class = cF1 > LTR< / span > < span class = cF0 > < / span > < span class = cFC > AX< / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = "l70" > < / a >
2021-07-04 23:11:34 +01:00
< a name = "l71" > < / a > < / span > < span class = cF5 > IntEntrySet< / span > < span class = cF0 > (< / span > < span class = cFE > 0x0D< / span > < span class = cF0 > , old_vect, < / span > < span class = cF3 > IDTET_IRQ< / span > < span class = cF0 > );
< a name = "l72" > < / a > < / span > < span class = cF1 > STI< / span > < span class = cF0 >
< a name = "l73" > < / a > < / span > < span class = cF6 > " Progress1 After :%X\n" < / span > < span class = cF0 > , < / span > < span class = cFB > progress1< / span > < span class = cF0 > ;
2021-07-03 05:07:57 +01:00
< a name = "l74" > < / a > }
< a name = "l75" > < / a >
< a name = "l76" > < / a > Ring3Demo;
< / span > < / pre > < / body >
< / html >
