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Remove old debugging support.

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This commit is contained in:
Andrew Alderwick 2022-01-22 21:03:34 +00:00
parent b486d9585b
commit deace3b79a
4 changed files with 0 additions and 210 deletions
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16
projects/examples/devices/system.debugger.tal
View file

@ -1,16 +0,0 @@
( devices )
|00 @System &vector $2 &wst $1 &rst $1 &eaddr $2 &ecode $1 &pad $1 &r $2 &g $2 &b $2 &debug $1 &halt $1
|10 @Console &vector $2 &read $1 &pad $5 &write $1 &error $1
( program )
|0100 @Reset ( -> )
~projects/library/debugger.tal
#0123 #4567 #89ab #cdef
LIT2r 1234 LIT2r 5678 LIT2r 9abc LIT2r def0
( BREAKPOINT )
( LIT2r 0000 DIVr )
&loop INCk ,&loop JMP
BRK

181
projects/library/debugger.tal
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@ -1,181 +0,0 @@
( in-Uxn debugger )
( To use, include this file just before the BRK in the program reset routine, e.g.:
|0100 ( -> )
( theme )
#0fe5 .System/r DEO2
#0fc5 .System/g DEO2
#0f25 .System/b DEO2
~projects/library/debugger.tal
BRK
The debugger will catch stack errors that arise after that point.
)
%BREAKPOINT { LIT2r :debug JSR2r }
@debug-start
;debug-vector .System/vector DEO2
;debug-end JMP2
@debug ( pc* -- )
#0001 SUB2 .System/eaddr DEO2
.System/ecode DEIk #07 EOR SWP DEO
,debug-vector/main JMP
@debug-vector ( -> )
STH STH STH STH ( <- only run in case of working stack overflow )
&main
( flush the working stack )
.System/wst DEI ;debug-wst/ptr STA
&flush-wst
.System/wst DEI #00 EQU ,&end-flush-wst JCN
#00 .System/wst DEI #0002 SUB2 ;debug-wst/dat ADD2 STA
,&flush-wst JMP
&end-flush-wst
( in case of working stack overflow, we need to append the four return stack bytes )
.System/ecode DEI #02 NEQ ,&skip-wst-append JCN
#00 ;debug-wst/ptr LDAk ( 00 ptr-hi ptr-lo ptr / ... z y x w )
DUP #04 ADD OVR2 STA
ROT ROT ADD2 ( start* / ... z y x w )
INC2 DUP2 #0004 ADD2 SWP2 ( end* start* / ... z y x w )
&loop
DUP2 STHr ROT ROT STA
INC2
GTH2k ,&loop JCN
POP2 POP2
&skip-wst-append
( flush the return stack )
.System/rst DEI ;debug-rst/ptr STA
&flush-rst
.System/rst DEI #00 EQU ,&end-flush-rst JCN
STHr #00 .System/rst DEI ;debug-rst/dat ADD2 STA
,&flush-rst JMP
&end-flush-rst
( Version 0.1 functionality: print the error and exit )
;debug-print-error JSR2
#01 .System/halt DEO
BRK
@debug-print-opcode ( instr -- )
DUP ,&not-brk JCN
POP ;&brk-msg ;debug-print JMP2 ( tail call )
&brk-msg "BRK 00
&not-brk
#00 OVR #1f AND #03 MUL ;&opcode-names ADD2 ( instr addr* )
LDAk .Console/write DEO INC2
LDAk .Console/write DEO INC2
LDA .Console/write DEO
DUP #1f AND ,&not-lit JCN
#7f AND
&not-lit
DUP #20 AND #00 EQU ,&not-2 JCN
LIT '2 .Console/write DEO
&not-2
DUP #80 AND #00 EQU ,&not-k JCN
LIT 'k .Console/write DEO
&not-k
#40 AND #00 EQU ,&not-r JCN
LIT 'r .Console/write DEO
&not-r
JMP2r
&opcode-names
"LITINCPOPDUPNIPSWPOVRROT
"EQUNEQGTHLTHJMPJCNJSRSTH
"LDZSTZLDRSTRLDASTADEIDEO
"ADDSUBMULDIVANDORAEORSFT
@debug-print ( addr* -- )
LDAk #00 EQU ,&end JCN
LDAk .Console/write DEO
INC2
,debug-print JMP
&end POP2 JMP2r
@debug-print-error
;&halted-msg ,debug-print JSR
#00 .System/ecode DEI #07 AND #20 SFT2 ;&messages-table ADD2
LDA2k ,debug-print JSR
INC2 INC2 LDA2 ,debug-print JSR
;&executing-msg ,debug-print JSR
.System/eaddr DEI2 LDA ;debug-print-opcode JSR2
;&at-msg ,debug-print JSR
.System/eaddr DEI2 ;debug-print-hex-short JSR2
#0a .Console/write DEO
;&wst-msg ,debug-print JSR
;&contents-msg ,debug-print JSR
;debug-wst ;debug-print-stack JSR2
#0a .Console/write DEO
;&rst-msg ,debug-print JSR
;&contents-msg ,debug-print JSR
;debug-rst ;debug-print-stack JSR2
#0a .Console/write DEO
JMP2r
&messages-table
:&wst-msg :&underflow-msg
:&rst-msg :&underflow-msg
:&wst-msg :&overflow-msg
:&rst-msg :&overflow-msg
:&wst-msg :&divzero-msg
:&rst-msg :&divzero-msg
:&emulator-msg :&interrupt-msg
:&userdef-msg :&breakpoint-msg
&halted-msg "Halted: 2000 ( #0002, at 0x0100 )
&wst-msg "Working-stack 2000
&rst-msg "Return-stack 2000
&emulator-msg "Emulator 2000
&userdef-msg "User-defined 2000
&underflow-msg "underflow 00
&overflow-msg "overflow 00
&divzero-msg "division 20 "by 20 "zero 00
&interrupt-msg "interrupt 00
&breakpoint-msg "breakpoint 00
&executing-msg 20 "executing 2000
&at-msg 20 "at 20 "0x 00
&contents-msg "contents: 00
@debug-print-hex-short ( value* -- )
SWP ,debug-print-hex-byte JSR
( fall through )
@debug-print-hex-byte ( value -- )
DUP #04 SFT ,debug-print-hex-nibble JSR
#0f AND
( fall through )
@debug-print-hex-nibble ( value -- )
#30 ADD DUP #39 GTH #27 MUL ADD
.Console/write DEO
JMP2r
@debug-print-stack ( addr* -- )
LDAk ,&not-empty JCN
POP2 ;&empty-msg ;debug-print JMP2 ( tail call )
&not-empty
LDAk STH INC2 ( dat* / count )
&loop
STHkr #00 EQU ,&end JCN
#20 .Console/write DEO
LDAk ,debug-print-hex-byte JSR
INC2
LITr 01 SUBr
,&loop JMP
&end
POP2 POPr
JMP2r
&empty-msg 20 "(empty) 00
@debug-wst &ptr $1 &dat $ff
@debug-rst &ptr $1 &dat $ff
@debug-end

12
src/devices/system.c
View file

@ -44,18 +44,6 @@ system_inspect(Uxn *u)
int
uxn_halt(Uxn *u, Uint8 error, Uint16 addr)
{
Device *d = &u->dev[0];
Uint16 vec = GETVECTOR(d);
DEVPOKE16(0x4, addr);
d->dat[0x6] = error;
if(vec) {
/* need to rearm to run System/vector again */
d->dat[0] = 0;
d->dat[1] = 0;
if(error != 2) /* working stack overflow has special treatment */
vec += 0x0004;
return uxn_eval(u, vec);
}
system_inspect(u);
fprintf(stderr, "Halted: %s#%04x, at 0x%04x\n", errors[error], u->ram[addr], addr);
return 0;

1
src/uxn.c
View file

@ -39,7 +39,6 @@ uxn_eval(Uxn *u, Uint16 pc)
Stack *src, *dst;
Device *dev;
if(!pc || u->dev[0].dat[0xf]) return 0;
if(u->wst.ptr > 0xf8) u->wst.ptr = 0xf8;
while((instr = u->ram[pc++])) {
/* Return Mode */
if(instr & 0x40) {