VolksForth/sources/Apple1/tools.fth
2020-07-20 23:47:02 +02:00

256 lines
16 KiB
Forth

\ *** Block No. 0 Hexblock 0
\ Development Tools cas 26jan06
Interactive Tracer
One-Step Debugger
Traps
\ *** Block No. 1 Hexblock 1
\ TOOLS LOADSCREEN 22MAR85RE)
ONLYFORTH
\NEEDS CODE abort( Assembler is needed )
VOCABULARY TOOLS
TOOLS ALSO DEFINITIONS
hex
1 &11 +THRU
decimal
ONLYFORTH
\ *** Block No. 2 Hexblock 2
\ HANDLE STEPS BP 10 02 85)
ASSEMBLER ALSO DEFINITIONS
ONLY FORTH ALSO TOOLS ALSO DEFINITIONS
| VARIABLE (W | VARIABLE RPT
| CODE STEP
RPT DEC RP X) LDA IP STA
RP )Y LDA IP 1+ STA RP 2INC
(W LDA W STA (W 1+ LDA W 1+ STA
W 1- JMP END-CODE
| CREATE NEXTSTEP ] STEP [
\ *** Block No. 3 Hexblock 3
\ THROW STATUS ON R-STACK B 23JUL85RE)
| CREATE NPULL 0 ]
RP@ COUNT 2DUP + RP! R> SWAP CMOVE ;
: NPUSH ( ADDR LEN -)
R> -ROT OVER >R RP@ OVER 1+ - DUP RP! PLACE
NPULL >R >R ;
| : ONELINE .STATUS SPACE QUERY INTERPRET
-82 ALLOT RDROP ( DELETE QUIT FROM TNEXT ) ;
\ *** Block No. 4 Hexblock 4
\ TRAP AND DISPLAY KS 26MAR85RE)
LABEL TNEXT
IP 2INC RP LDA RPT CMP 0<> ?[
[[ W 1- JMP SWAP ]?
RP 1+ LDA RPT 1+ CMP 0= ?]
LABEL DOTRACE
RPT INC ( DISABLE TRACER )
W LDA (W STA W 1+ LDA (W 1+ STA
;C: R@ NEXTSTEP >R
INPUT PUSH KEYBOARD
OUTPUT PUSH DISPLAY
CR 2- DUP 4 U.R @ DUP 5 U.R 2 SPACES
>NAME .NAME 1C COL - 0 MAX SPACES .S
STATE PUSH BLK PUSH >IN PUSH
[ ' 'QUIT >BODY ] LITERAL PUSH
[ ' >INTERPRET >BODY ] LITERAL PUSH
\ *** Block No. 5 Hexblock 5
\
#TIB PUSH TIB #TIB @ NPUSH R0 PUSH
RP@ R0 ! 082 ALLOT
['] ONELINE IS 'QUIT QUIT ; -2 ALLOT
\ *** Block No. 6 Hexblock 6
\ TRACER COMMANDS BP 23JUL85RE)
| CODE (TRACE TNEXT 0 100 M/MOD
# LDA NEXT 0C + STA
# LDA NEXT 0B + STA
04C # LDA NEXT 0A + STA NEXT JMP END-CODE
: TRACE' RP@ 2- RPT ! ' (TRACE EXECUTE END-TRACE ;
: BREAK RP@ 2+ RPT ! (TRACE ; RESTRICT
: TRACEL: CREATE , DOES> @ RPT +! ;
-6 TRACEL: +DO 6 TRACEL: -DO
-2 TRACEL: +R 2 TRACEL: -R
-6 TRACEL: +PUSH 6 TRACEL: -PUSH
\ *** Block No. 7 Hexblock 7
\ WATCH TRAP BP 10 02 85 )
| VARIABLE WATCHPT 2 ALLOT
LABEL WNEXT IP 2INC
WATCHPT LDA N STA WATCHPT 1+ LDA N 1+ STA
N X) LDA WATCHPT 2+ CMP 0<> ?[
[[ RP LDA RPT STA RP 1+ LDA RPT 1+ STA
( SET TO TNEXT) TNEXT 0 100 M/MOD
# LDA NEXT 0C + STA # LDA NEXT 0B + STA
DOTRACE JMP SWAP ]?
N )Y LDA WATCHPT 3 + CMP 0= ?] W 1- JMP END-CODE
\ *** Block No. 8 Hexblock 8
\ WATCH COMMANDS BP 10 02 85 )
| CODE (WATCH WNEXT 0 100 M/MOD
# LDA NEXT 0C + STA
# LDA NEXT 0B + STA
04C # LDA NEXT 0A + STA NEXT JMP END-CODE
: WATCH' ( ADR -- )
DUP WATCHPT ! @ WATCHPT 2+ ! ' (WATCH EXECUTE END-TRACE ;
: CONT ( -) WATCHPT @ @ WATCHPT 2+ ! (WATCH ;
( SYNTAX : <VARNAME> WATCH' <PROCEDURE> )
\ *** Block No. 9 Hexblock 9
\ TOOLS FOR DECOMPILING, KS 4 APR 83 )
( INTERACTIVE USE )
| : ?: DUP 4 U.R ." :" ;
| : @? DUP @ 6 U.R ;
| : C? DUP C@ 3 .R ;
| : BL 024 COL - 0 MAX SPACES ;
: S ( ADR - ADR+) ( PRINT LITERAL STRING)
?: SPACE C? 4 SPACES DUP COUNT TYPE
DUP C@ + 1+ BL ; ( COUNT + RE)
: N ( ADR - ADR+2) ( PRINT NAME OF NEXT WORD BY ITS CFA)
?: @? 2 SPACES DUP @ >NAME .NAME 2+ BL ;
: L ( ADR - ADR+2) ( PRINT LITERAL VALUE) ?: @? 2+ BL ;
\ *** Block No. 10 Hexblock A
\ TOOLS FOR DECOMPILING, INTERACTIVE )
: D ( ADR N - ADR+N) ( DUMP N BYTES)
2DUP SWAP ?: 3 SPACES SWAP 0 DO C? 1+ LOOP
4 SPACES -ROT TYPE BL ;
: C ( ADR - ADR+1) ( PRINT BYTE AS UNSIGNED VALUE) 1 D ;
: B ( ADR - ADR+2) ( PRINT BRANCH TARGET LOCATION )
?: @? DUP @ OVER + 6 U.R 2+ BL ;
( USED FOR : )
( NAME STRING LITERAL DUMP CLIT BRANCH )
( - - - - - - )
\ *** Block No. 11 Hexblock B
\ DEBUGGING UTILITIES BP 19 02 85 )
: UNRAVEL \ UNRAVEL PERFORM (ABORT"
RDROP RDROP RDROP CR ." TRACE DUMP IS " CR
BEGIN RP@ R0 @ -
WHILE R> DUP 8 U.R SPACE 2- @ >NAME .NAME CR
REPEAT (ERROR ;
' UNRAVEL ERRORHANDLER !
\ *** Block No. 12 Hexblock C
\ *** Block No. 13 Hexblock D
\ *** Block No. 14 Hexblock E