Connected error reporting and the hypervisor
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neauoire
parent
b94c52cbbf
commit
ed1f6e6263
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@ -9,22 +9,97 @@
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%AUTO-Y { #02 .Screen/auto DEO }
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%AUTO-YADDR { #06 .Screen/auto DEO }
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%HALT { #010f DEO }
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%EMIT { #18 DEO }
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%PRINT { ;print-str JSR2 #0a EMIT }
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%DEBUG { ;print-hex/byte JSR2 #0a EMIT }
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%DEBUG2 { ;print-hex JSR2 #0a EMIT }
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%MODALW { #0024 }
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%MODALH { #0009 }
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%RTN { JMP2r }
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%2// { #01 SFT2 }
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%8** { #30 SFT2 }
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( devices )
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|00 @System &vector $2 &wst $1 &rst $1 &eaddr $2 &ecode $1 &pad $1 &r $2 &g $2 &b $2 &debug $1 &halt $1
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|20 @Screen &vector $2 &width $2 &height $2 &auto $1 &pad $1 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1
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( variables )
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|0000
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@center
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&x $2 &y $2
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@modal
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&x $2 &y $2
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( init )
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|0100 ( -> )
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.Screen/width DEI2 2//
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DUP2 .center/x STZ2
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MODALW #31 SFT2 -- .modal/x STZ2
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.Screen/height DEI2 2//
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DUP2 .center/y STZ2
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MODALH #31 SFT2 -- .modal/y STZ2
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;draw-cross JSR2
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;draw-stacks JSR2
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.System/eaddr DEI2 #0000 !! ;on-error JCN2
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BRK
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@on-error ( -> )
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( background )
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#00 .Screen/auto DEO
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;bg-icn .Screen/addr DEO2
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MODALH #0000
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&ver
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DUP2 8** .modal/y LDZ2 ++ .Screen/y DEO2
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MODALW #0000
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&hor
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DUP2 8** .modal/x LDZ2 ++ .Screen/x DEO2
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#42 .Screen/sprite DEO
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INC2 GTH2k ,&hor JCN
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POP2 POP2
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INC2 GTH2k ,&ver JCN
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POP2 POP2
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( corners )
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;corner-icn .Screen/addr DEO2
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.modal/x LDZ2 .Screen/x DEO2
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.modal/y LDZ2 .Screen/y DEO2
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#42 .Screen/sprite DEO
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.modal/x LDZ2 MODALW #0001 -- 8** ++ .Screen/x DEO2
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#52 .Screen/sprite DEO
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.modal/y LDZ2 MODALH #0001 -- 8** ++ .Screen/y DEO2
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#72 .Screen/sprite DEO
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.modal/x LDZ2 .Screen/x DEO2
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#62 .Screen/sprite DEO
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( text )
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.modal/x LDZ2 #0010 ++ .Screen/x DEO2
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.modal/y LDZ2 #0010 ++ .Screen/y DEO2
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;error-txts/0 #4f ;draw-str JSR2
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;at-txt #4f ;draw-str JSR2
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.System/eaddr DEI2 #47 ;draw-short JSR2
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#0000 .System/eaddr DEO2
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BRK
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@draw-stacks ( -- )
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AUTO-YADDR
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#0010 #0000
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@ -33,23 +108,23 @@
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#0010 .Screen/y DEO2
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DUP2 #0018 ** #0010 ++ .Screen/x DEO2
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DUP #fe00 LDA ( ptr ) EQU #41 + STH
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DUP2 #fe01 ++ LDA STHr ;draw-hex JSR2
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DUP2 #fe01 ++ LDA STHr ;draw-byte JSR2
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( return stack )
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#0028 .Screen/y DEO2
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DUP2 #0018 ** #0010 ++ .Screen/x DEO2
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DUP #ff00 LDA ( ptr ) EQU #41 + STH
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DUP2 #ff01 ++ LDA STHr ;draw-hex JSR2
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DUP2 #ff01 ++ LDA STHr ;draw-byte JSR2
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INC2 GTH2k ,&wst JCN
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POP2 POP2
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BRK
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RTN
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@draw-cross ( -- )
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( ver )
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AUTO-Y
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#0000 .Screen/y DEO2
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.Screen/width DEI2 2// .Screen/x DEO2
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.center/x LDZ2 .Screen/x DEO2
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.Screen/height DEI2 #0000
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&ver
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#43 .Screen/pixel DEO
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@ -60,7 +135,7 @@ BRK
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( hor )
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AUTO-X
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#0000 .Screen/x DEO2
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.Screen/height DEI2 2// .Screen/y DEO2
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.center/y LDZ2 .Screen/y DEO2
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.Screen/width DEI2 #0000
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&hor
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#43 .Screen/pixel DEO
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@ -70,7 +145,26 @@ BRK
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RTN
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@draw-hex ( byte color -- )
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@draw-str ( text* color -- )
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AUTO-YADDR
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STH
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&while
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LDAk STHkr ,draw-char JSR
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INC2 LDAk ,&while JCN
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POP2
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POPr
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RTN
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@draw-short ( short* color -- )
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STH SWP STHkr ,draw-byte JSR
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STHr ,draw-byte JSR
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RTN
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@draw-byte ( byte color -- )
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STH
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DUP #04 SFT ,&parse JSR STHkr ,draw-char JSR
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@ -90,4 +184,31 @@ RTN
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JMP2r
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@print-hex ( value* -- )
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SWP ,&byte JSR
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&byte ( byte -- )
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STHk #04 SFT ,&parse JSR #18 DEO
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STHr #0f AND ,&parse JSR #18 DEO
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JMP2r
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&parse ( byte -- char ) DUP #09 GTH ,&above JCN #30 ADD JMP2r
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&above #57 ADD JMP2r
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JMP2r
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@error-txts
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&0 "Working-stack 20 "underflow $1
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&1 "Return-stack 20 "underflow $1
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&2 "Working-stack 20 "overflow $1
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&3 "Return-stack 20 "overflow $1
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&4 "Working-stack 20 "division 20 "by 20 "zero $1
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&5 "Return-stack 20 "division 20 "by 20 "zero $1
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@at-txt
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', 20 "at 20 $1
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@bg-icn
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ffff ffff ffff ffff
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@corner-icn
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1f7f 7fff ffff ffff
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~projects/assets/msx01x02.tal
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@ -14,6 +14,8 @@ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE.
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*/
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Uxn hypervisor;
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static const char *errors[] = {
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"Working-stack underflow",
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"Return-stack underflow",
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@ -27,14 +29,27 @@ uxn_halt(Uxn *u, Uint8 error, Uint16 addr)
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{
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Device *d = &u->dev[0];
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Uint16 vec = d->vector;
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if(vec) {
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d->vector = 0; /* need to rearm to run System/vector again */
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/* hypervisor */
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d = &hypervisor.dev[0];
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vec = d->vector;
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DEVPOKE16(0x4, addr);
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d->dat[0x6] = error;
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uxn_eval(&hypervisor, PAGE_PROGRAM);
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/* core */
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d = &u->dev[0];
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DEVPOKE16(0x4, addr);
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d->dat[0x6] = error;
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vec = d->vector;
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if(vec) {
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d->vector = 0; /* need to rearm to run System/vector again */
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if(error != 2) /* working stack overflow has special treatment */
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vec += 0x0004;
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return uxn_eval(u, vec);
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}
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fprintf(stderr, "Halted: %s#%04x, at 0x%04x\n", errors[error], u->ram[addr], addr);
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return 0;
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}
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@ -12,3 +12,5 @@ WITH REGARD TO THIS SOFTWARE.
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Uint8 system_dei(Device *d, Uint8 port);
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void system_deo(Device *d, Uint8 port);
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void system_deo_special(Device *d, Uint8 port);
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extern Uxn hypervisor;
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@ -44,7 +44,6 @@ static SDL_Rect gRect;
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static Device *devsystem, *devscreen, *devmouse, *devctrl, *devaudio0, *devconsole;
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static Uint8 zoom = 1;
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static Uint32 stdin_event, audio0_event;
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static Uxn hypervisor;
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static int
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clamp(int val, int min, int max)
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@ -283,10 +282,10 @@ start(Uxn *u, char *rom)
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return error("Boot", "Failed to start uxn.");
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if(!uxn_boot(u, (Stack *)(shadow + 0xfe00), (Stack *)(shadow + 0xff00), memory))
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return error("Boot", "Failed to start uxn.");
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if(!load(u, rom))
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return error("Boot", "Failed to load rom.");
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if(!load(&hypervisor, "hypervisor.rom"))
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error("Hypervisor", "No debugger found.");
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if(!load(u, rom))
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return error("Boot", "Failed to load rom.");
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/* system */ devsystem = uxn_port(u, 0x0, system_dei, system_deo);
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/* console */ devconsole = uxn_port(u, 0x1, nil_dei, console_deo);
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@ -306,6 +305,7 @@ start(Uxn *u, char *rom)
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/* unused */ uxn_port(u, 0xf, nil_dei, nil_deo);
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/* Hypervisor */
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uxn_port(&hypervisor, 0x0, system_dei, system_deo);
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uxn_port(&hypervisor, 0x1, nil_dei, console_deo);
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uxn_port(&hypervisor, 0x2, screen_dei, screen_deo);
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