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bbd62dc97c
mal/basic/core.in.bas
Joel Martin 5bbc7a1fb8 bash, basic: add number?, fn?, and macro?
2017-10-11 15:58:36 -04:00

637 lines
16 KiB
QBasic
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REM APPLY should really be in types.in.bas but it is here because it
REM calls DO_TCO_FUNCTION so it will cause syntax errors for steps1-3
REM if it is in types.in.bas because there are unresolved labels.
REM APPLY(F, AR) -> R
REM - restores E
REM - call using GOTO and with return label/address on the stack
SUB APPLY
REM if metadata, get the actual object
GOSUB TYPE_F
IF T=14 THEN F=Z%(F+1):GOSUB TYPE_F
ON T-8 GOTO APPLY_FUNCTION,APPLY_MAL_FUNCTION,APPLY_MAL_FUNCTION
APPLY_FUNCTION:
REM regular function
IF Z%(F+1)<64 THEN GOSUB DO_FUNCTION:GOTO APPLY_DONE
REM for recur functions (apply, map, swap!), use GOTO
IF Z%(F+1)>64 THEN CALL DO_TCO_FUNCTION
GOTO APPLY_DONE
APPLY_MAL_FUNCTION:
Q=E:GOSUB PUSH_Q: REM save the current environment
REM create new environ using env and params stored in the
REM function and bind the params to the apply arguments
C=Z%(F+3):A=Z%(F+2):B=AR:GOSUB ENV_NEW_BINDS
A=Z%(F+1):E=R:CALL EVAL
AY=E:GOSUB RELEASE: REM release the new environment
GOSUB POP_Q:E=Q: REM pop/restore the saved environment
APPLY_DONE:
END SUB
REM DO_TCO_FUNCTION(F, AR)
SUB DO_TCO_FUNCTION
G=Z%(F+1)
REM Get argument values
A=Z%(AR+2)
B=Z%(Z%(AR+1)+2)
REM PRINT "F:"+STR$(F)+", Z%(F):"+STR$(Z%(F))+", G:"+STR$(G)
ON G-64 GOTO DO_APPLY,DO_MAP,DO_SWAP_BANG
DO_APPLY:
F=A
AR=Z%(AR+1)
A=AR:GOSUB COUNT:C=R
A=Z%(AR+2)
REM no intermediate args, but not a list, so convert it first
GOSUB TYPE_A
IF C<=1 AND T<>6 THEN T=6:GOSUB FORCE_SEQ_TYPE:GOTO DO_APPLY_2
REM no intermediate args, just call APPLY directly
IF C<=1 THEN GOTO DO_APPLY_1
REM prepend intermediate args to final args element
A=AR:B=0:C=C-1:GOSUB SLICE
REM release the terminator of new list (we skip over it)
REM we already checked for an empty list above, so R6 is pointer
REM a real non-empty list
AY=Z%(R6+1):GOSUB RELEASE
REM attach end of slice to final args element
A2=Z%(A+2)
Z%(R6+1)=A2
Z%(A2)=Z%(A2)+32
GOTO DO_APPLY_2
DO_APPLY_1:
AR=A:CALL APPLY
GOTO DO_TCO_FUNCTION_DONE
DO_APPLY_2:
GOSUB PUSH_R: REM push/save new args for release
AR=R:CALL APPLY
REM pop/release new args
GOSUB POP_Q:AY=Q
GOSUB RELEASE
GOTO DO_TCO_FUNCTION_DONE
DO_MAP:
F=A
REM setup the stack for the loop
T=6:GOSUB MAP_LOOP_START
DO_MAP_LOOP:
IF Z%(B+1)=0 THEN GOTO DO_MAP_DONE
REM create argument list for apply
T=6:L=6:M=Z%(B+2):GOSUB ALLOC
GOSUB PUSH_R: REM push argument list
Q=F:GOSUB PUSH_Q: REM push F
Q=B:GOSUB PUSH_Q: REM push B
AR=R:CALL APPLY
GOSUB POP_Q:B=Q: REM pop B
GOSUB POP_Q:F=Q: REM pop F
GOSUB POP_Q: REM pop apply args and release them
AY=Q:GOSUB RELEASE
REM main value is result of apply
M=R
B=Z%(B+1): REM go to the next element
REM if error, release the unattached element
IF ER<>-2 THEN AY=R:GOSUB RELEASE:GOTO DO_MAP_DONE
REM update the return sequence structure
REM release N since list takes full ownership
C=1:T=6:GOSUB MAP_LOOP_UPDATE
GOTO DO_MAP_LOOP
DO_MAP_DONE:
REM cleanup stack and get return value
GOSUB MAP_LOOP_DONE
GOTO DO_TCO_FUNCTION_DONE
DO_SWAP_BANG:
F=B
REM add atom to front of the args list
T=6:L=Z%(Z%(AR+1)+1):M=Z%(A+1):GOSUB ALLOC: REM cons
AR=R
REM push args for release after
Q=AR:GOSUB PUSH_Q
REM push atom
GOSUB PUSH_A
CALL APPLY
REM pop atom
GOSUB POP_A
REM pop and release args
GOSUB POP_Q:AY=Q
GOSUB RELEASE
REM use reset to update the value
B=R:GOSUB DO_RESET_BANG
REM but decrease ref cnt of return by 1 (not sure why)
AY=R:GOSUB RELEASE
GOTO DO_TCO_FUNCTION_DONE
DO_TCO_FUNCTION_DONE:
END SUB
REM DO_FUNCTION(F, AR)
DO_FUNCTION:
REM Get the function number
G=Z%(F+1)
REM Get argument values
A=Z%(AR+2):A1=Z%(A+1)
B=Z%(Z%(AR+1)+2):B1=Z%(B+1)
REM Switch on the function number
REM MEMORY DEBUGGING:
REM IF G>59 THEN ER=-1:E$="unknown function"+STR$(G):RETURN
ON INT(G/10)+1 GOTO DO_1_9,DO_10_19,DO_20_29,DO_30_39,DO_40_49,DO_50_59,DO_60_69
DO_1_9:
ON G GOTO DO_EQUAL_Q,DO_THROW,DO_NIL_Q,DO_TRUE_Q,DO_FALSE_Q,DO_STRING_Q,DO_SYMBOL,DO_SYMBOL_Q,DO_KEYWORD
DO_10_19:
ON G-9 GOTO DO_KEYWORD_Q,DO_NUMBER_Q,DO_FN_Q,DO_MACRO_Q,DO_PR_STR,DO_STR,DO_PRN,DO_PRINTLN,DO_READ_STRING,DO_READLINE
DO_20_29:
ON G-19 GOTO DO_SLURP,DO_LT,DO_LTE,DO_GT,DO_GTE,DO_ADD,DO_SUB,DO_MULT,DO_DIV,DO_TIME_MS
DO_30_39:
ON G-29 GOTO DO_LIST,DO_LIST_Q,DO_VECTOR,DO_VECTOR_Q,DO_HASH_MAP,DO_MAP_Q,DO_ASSOC,DO_THROW,DO_GET,DO_CONTAINS
DO_40_49:
ON G-39 GOTO DO_KEYS,DO_VALS,DO_SEQUENTIAL_Q,DO_CONS,DO_CONCAT,DO_NTH,DO_FIRST,DO_REST,DO_EMPTY_Q,DO_COUNT
DO_50_59:
ON G-49 GOTO DO_CONJ,DO_SEQ,DO_WITH_META,DO_META,DO_ATOM,DO_ATOM_Q,DO_DEREF,DO_RESET_BANG,DO_EVAL,DO_READ_FILE
DO_60_69:
ON G-59 GOTO DO_PR_MEMORY_SUMMARY
DO_EQUAL_Q:
GOSUB EQUAL_Q
GOTO RETURN_TRUE_FALSE
DO_THROW:
ER=A
Z%(ER)=Z%(ER)+32
R=-1
RETURN
DO_NIL_Q:
R=A=0
GOTO RETURN_TRUE_FALSE
DO_TRUE_Q:
R=A=4
GOTO RETURN_TRUE_FALSE
DO_FALSE_Q:
R=A=2
GOTO RETURN_TRUE_FALSE
DO_STRING_Q:
R=0
GOSUB TYPE_A
IF T<>4 THEN GOTO RETURN_TRUE_FALSE
IF MID$(S$(A1),1,1)=CHR$(127) THEN GOTO RETURN_TRUE_FALSE
R=1
GOTO RETURN_TRUE_FALSE
DO_SYMBOL:
B$=S$(A1)
T=5:GOSUB STRING
RETURN
DO_SYMBOL_Q:
GOSUB TYPE_A
R=T=5
GOTO RETURN_TRUE_FALSE
DO_KEYWORD:
B$=S$(A1)
IF MID$(B$,1,1)<>CHR$(127) THEN B$=CHR$(127)+B$
T=4:GOSUB STRING
RETURN
DO_KEYWORD_Q:
R=0
GOSUB TYPE_A
IF T<>4 THEN GOTO RETURN_TRUE_FALSE
IF MID$(S$(A1),1,1)<>CHR$(127) THEN GOTO RETURN_TRUE_FALSE
R=1
GOTO RETURN_TRUE_FALSE
DO_NUMBER_Q:
GOSUB TYPE_A
R=T=2
GOTO RETURN_TRUE_FALSE
DO_FN_Q:
GOSUB TYPE_A
R=T=9 OR T=10
GOTO RETURN_TRUE_FALSE
DO_MACRO_Q:
GOSUB TYPE_A
R=T=11
GOTO RETURN_TRUE_FALSE
DO_PR_STR:
AZ=AR:B=1:B$=" ":GOSUB PR_STR_SEQ
B$=R$:T=4:GOSUB STRING
RETURN
DO_STR:
AZ=AR:B=0:B$="":GOSUB PR_STR_SEQ
B$=R$:T=4:GOSUB STRING
RETURN
DO_PRN:
AZ=AR:B=1:B$=" ":GOSUB PR_STR_SEQ
PRINT R$
R=0
GOTO INC_REF_R
DO_PRINTLN:
AZ=AR:B=0:B$=" ":GOSUB PR_STR_SEQ
PRINT R$
R=0
GOTO INC_REF_R
DO_READ_STRING:
A$=S$(A1)
GOSUB READ_STR
RETURN
DO_READLINE:
A$=S$(A1):GOSUB READLINE
IF EZ>0 THEN EZ=0:R=0:GOTO INC_REF_R
B$=R$:T=4:GOSUB STRING
RETURN
DO_SLURP:
R$=""
EZ=0
#cbm OPEN 2,8,0,S$(A1)
#qbasic A$=S$(A1)
#qbasic IF NOT _FILEEXISTS(A$) THEN ER=-1:E$="File not found":RETURN
#qbasic OPEN A$ FOR INPUT AS #2
DO_SLURP_LOOP:
C$=""
RJ=1:GOSUB READ_FILE_CHAR
#cbm IF ASC(C$)=10 THEN R$=R$+CHR$(13)
#qbasic IF ASC(C$)=10 THEN R$=R$+CHR$(10)
IF (ASC(C$)<>10) AND (C$<>"") THEN R$=R$+C$
IF EZ>0 THEN GOTO DO_SLURP_DONE
GOTO DO_SLURP_LOOP
DO_SLURP_DONE:
CLOSE 2
IF ER>-2 THEN RETURN
B$=R$:T=4:GOSUB STRING
RETURN
DO_LT:
R=A1<B1
GOTO RETURN_TRUE_FALSE
DO_LTE:
R=A1<=B1
GOTO RETURN_TRUE_FALSE
DO_GT:
R=A1>B1
GOTO RETURN_TRUE_FALSE
DO_GTE:
R=A1>=B1
GOTO RETURN_TRUE_FALSE
DO_ADD:
T=2:L=A1+B1:GOSUB ALLOC
RETURN
DO_SUB:
T=2:L=A1-B1:GOSUB ALLOC
RETURN
DO_MULT:
T=2:L=A1*B1:GOSUB ALLOC
RETURN
DO_DIV:
T=2:L=A1/B1:GOSUB ALLOC
RETURN
DO_TIME_MS:
#cbm T=2:L=INT((TI-BT)*16.667):GOSUB ALLOC
#qbasic T=2:L=INT((TIMER(0.001)-BT#)*1000):GOSUB ALLOC
RETURN
DO_LIST:
R=AR
GOTO INC_REF_R
DO_LIST_Q:
GOSUB LIST_Q
GOTO RETURN_TRUE_FALSE
DO_VECTOR:
A=AR:T=7:GOSUB FORCE_SEQ_TYPE
RETURN
DO_VECTOR_Q:
GOSUB TYPE_A
R=T=7
GOTO RETURN_TRUE_FALSE
DO_HASH_MAP:
REM setup the stack for the loop
T=8:GOSUB MAP_LOOP_START
A=AR
DO_HASH_MAP_LOOP:
IF Z%(A+1)=0 THEN GOTO DO_HASH_MAP_LOOP_DONE
M=Z%(A+2)
N=Z%(Z%(A+1)+2)
A=Z%(Z%(A+1)+1): REM skip two
REM update the return sequence structure
REM do not release M and N since we are pulling them from the
REM arguments (and not creating them here)
C=0:GOSUB MAP_LOOP_UPDATE
GOTO DO_HASH_MAP_LOOP
DO_HASH_MAP_LOOP_DONE:
REM cleanup stack and get return value
GOSUB MAP_LOOP_DONE
RETURN
DO_MAP_Q:
GOSUB TYPE_A
R=T=8
GOTO RETURN_TRUE_FALSE
DO_ASSOC:
H=A
AR=Z%(AR+1)
DO_ASSOC_LOOP:
K=Z%(AR+2)
C=Z%(Z%(AR+1)+2)
Z%(H)=Z%(H)+32
GOSUB ASSOC1:H=R
AR=Z%(Z%(AR+1)+1)
IF AR=0 OR Z%(AR+1)=0 THEN RETURN
GOTO DO_ASSOC_LOOP
DO_GET:
IF A=0 THEN R=0:GOTO INC_REF_R
H=A:K=B:GOSUB HASHMAP_GET
GOTO INC_REF_R
DO_CONTAINS:
H=A:K=B:GOSUB HASHMAP_CONTAINS
GOTO RETURN_TRUE_FALSE
DO_KEYS:
T1=0
GOTO DO_KEYS_VALS
DO_VALS:
T1=1
DO_KEYS_VALS:
REM setup the stack for the loop
T=6:GOSUB MAP_LOOP_START
DO_KEYS_VALS_LOOP:
IF Z%(A+1)=0 THEN GOTO DO_KEYS_VALS_LOOP_DONE
IF T1=0 THEN M=Z%(A+2)
IF T1=1 THEN M=Z%(A+3)
A=Z%(A+1): REM next element
REM update the return sequence structure
REM do not release N since we are pulling it from the
REM hash-map (and not creating them here)
C=0:GOSUB MAP_LOOP_UPDATE
GOTO DO_KEYS_VALS_LOOP
DO_KEYS_VALS_LOOP_DONE:
REM cleanup stack and get return value
GOSUB MAP_LOOP_DONE
RETURN
DO_SEQUENTIAL_Q:
GOSUB TYPE_A
R=T=6 OR T=7
GOTO RETURN_TRUE_FALSE
DO_CONS:
T=6:L=B:M=A:GOSUB ALLOC
RETURN
DO_CONCAT:
REM always a list
R=6:GOSUB INC_REF_R
GOSUB PUSH_R: REM current value
GOSUB PUSH_R: REM return value
DO_CONCAT_LOOP:
IF AR<16 THEN GOTO DO_CONCAT_DONE: REM no more elements
REM slice/copy current element to a list
A=Z%(AR+2)
IF A<16 THEN GOTO DO_CONCAT_LOOP_NEXT: REM skip empty elements
B=0:C=-1:GOSUB SLICE
GOSUB PEEK_Q: REM return value
REM if this is the first element, set return element
IF Q=6 THEN Q=R:GOSUB PUT_Q:GOTO DO_CONCAT_LOOP_AGAIN
REM otherwise Q<>6, so attach current to sliced
GOSUB PEEK_Q_1
Z%(Q+1)=R
DO_CONCAT_LOOP_AGAIN:
REM update current to end of sliced list
Q=R6:GOSUB PUT_Q_1
REM dec empty since no longer part of slice
AY=6:GOSUB RELEASE
DO_CONCAT_LOOP_NEXT:
REM next list element
AR=Z%(AR+1)
GOTO DO_CONCAT_LOOP
DO_CONCAT_DONE:
GOSUB POP_R: REM pop return value
GOSUB POP_Q: REM pop current
RETURN
DO_NTH:
B=B1
GOSUB COUNT
IF R<=B THEN R=-1:ER=-1:E$="nth: index out of range":RETURN
DO_NTH_LOOP:
IF B=0 THEN GOTO DO_NTH_DONE
B=B-1
A=Z%(A+1)
GOTO DO_NTH_LOOP
DO_NTH_DONE:
R=Z%(A+2)
GOTO INC_REF_R
DO_FIRST:
R=0
IF A=0 THEN GOTO INC_REF_R
IF A1<>0 THEN R=Z%(A+2)
GOTO INC_REF_R
DO_REST:
IF A=0 THEN R=6:GOTO INC_REF_R
IF A1<>0 THEN A=A1: REM get the next sequence element
T=6:GOSUB FORCE_SEQ_TYPE
RETURN
DO_EMPTY_Q:
R=A1=0
GOTO RETURN_TRUE_FALSE
DO_COUNT:
GOSUB COUNT
T=2:L=R:GOSUB ALLOC
RETURN
DO_CONJ:
R=0
GOTO INC_REF_R
DO_SEQ:
R=0
GOTO INC_REF_R
DO_WITH_META:
GOSUB TYPE_A
REM remove existing metadata first
IF T=14 THEN A=A1:GOTO DO_WITH_META
T=14:L=A:M=B:GOSUB ALLOC
RETURN
DO_META:
R=0
GOSUB TYPE_A
IF T=14 THEN R=Z%(A+2)
GOTO INC_REF_R
DO_ATOM:
T=12:L=A:GOSUB ALLOC
RETURN
DO_ATOM_Q:
GOSUB TYPE_A
R=T=12
GOTO RETURN_TRUE_FALSE
DO_DEREF:
R=A1
GOTO INC_REF_R
DO_RESET_BANG:
R=B
REM release current value
REM can't use A1 here because DO_RESET_BANG is called from swap!
AY=Z%(A+1):GOSUB RELEASE
REM inc ref by 2 for atom ownership and since we are returning it
Z%(R)=Z%(R)+64
REM update value
Z%(A+1)=R
RETURN
DO_EVAL:
Q=E:GOSUB PUSH_Q: REM push/save environment
E=D:CALL EVAL
GOSUB POP_Q:E=Q
RETURN
DO_READ_FILE:
A$=S$(A1)
GOSUB READ_FILE
RETURN
REM DO_PR_MEMORY:
REM P1=ZT:P2=-1:GOSUB PR_MEMORY
REM RETURN
DO_PR_MEMORY_SUMMARY:
REM GOSUB PR_MEMORY_SUMMARY
GOSUB PR_MEMORY_SUMMARY_SMALL
R=0
GOTO INC_REF_R
RETURN
INIT_CORE_SET_FUNCTION:
T=9:L=A:GOSUB ALLOC: REM native function
C=R:GOSUB ENV_SET_S
A=A+1
RETURN
REM INIT_CORE_NS(E)
INIT_CORE_NS:
REM create the environment mapping
REM must match DO_FUNCTION mappings
A=1
B$="=":GOSUB INIT_CORE_SET_FUNCTION: REM A=1
B$="throw":GOSUB INIT_CORE_SET_FUNCTION: REM A=2
B$="nil?":GOSUB INIT_CORE_SET_FUNCTION: REM A=3
B$="true?":GOSUB INIT_CORE_SET_FUNCTION: REM A=4
B$="false?":GOSUB INIT_CORE_SET_FUNCTION: REM A=5
B$="string?":GOSUB INIT_CORE_SET_FUNCTION: REM A=6
B$="symbol":GOSUB INIT_CORE_SET_FUNCTION: REM A=7
B$="symbol?":GOSUB INIT_CORE_SET_FUNCTION: REM A=8
B$="keyword":GOSUB INIT_CORE_SET_FUNCTION: REM A=9
B$="keyword?":GOSUB INIT_CORE_SET_FUNCTION: REM A=10
B$="number?":GOSUB INIT_CORE_SET_FUNCTION: REM A=11
B$="fn?":GOSUB INIT_CORE_SET_FUNCTION: REM A=12
B$="macro?":GOSUB INIT_CORE_SET_FUNCTION: REM A=13
B$="pr-str":GOSUB INIT_CORE_SET_FUNCTION: REM A=14
B$="str":GOSUB INIT_CORE_SET_FUNCTION: REM A=15
B$="prn":GOSUB INIT_CORE_SET_FUNCTION: REM A=16
B$="println":GOSUB INIT_CORE_SET_FUNCTION: REM A=17
B$="read-string":GOSUB INIT_CORE_SET_FUNCTION: REM A=18
B$="readline":GOSUB INIT_CORE_SET_FUNCTION: REM A=19
B$="slurp":GOSUB INIT_CORE_SET_FUNCTION: REM A=20
B$="<":GOSUB INIT_CORE_SET_FUNCTION: REM A=21
B$="<=":GOSUB INIT_CORE_SET_FUNCTION: REM A=22
B$=">":GOSUB INIT_CORE_SET_FUNCTION: REM A=23
B$=">=":GOSUB INIT_CORE_SET_FUNCTION: REM A=24
B$="+":GOSUB INIT_CORE_SET_FUNCTION: REM A=25
B$="-":GOSUB INIT_CORE_SET_FUNCTION: REM A=26
B$="*":GOSUB INIT_CORE_SET_FUNCTION: REM A=27
B$="/":GOSUB INIT_CORE_SET_FUNCTION: REM A=28
B$="time-ms":GOSUB INIT_CORE_SET_FUNCTION: REM A=29
B$="list":GOSUB INIT_CORE_SET_FUNCTION: REM A=30
B$="list?":GOSUB INIT_CORE_SET_FUNCTION: REM A=31
B$="vector":GOSUB INIT_CORE_SET_FUNCTION: REM A=32
B$="vector?":GOSUB INIT_CORE_SET_FUNCTION: REM A=33
B$="hash-map":GOSUB INIT_CORE_SET_FUNCTION: REM A=34
B$="map?":GOSUB INIT_CORE_SET_FUNCTION: REM A=35
B$="assoc":GOSUB INIT_CORE_SET_FUNCTION: REM A=36
B$="dissoc":GOSUB INIT_CORE_SET_FUNCTION: REM A=37
B$="get":GOSUB INIT_CORE_SET_FUNCTION: REM A=38
B$="contains?":GOSUB INIT_CORE_SET_FUNCTION: REM A=39
B$="keys":GOSUB INIT_CORE_SET_FUNCTION: REM A=40
B$="vals":GOSUB INIT_CORE_SET_FUNCTION: REM A=41
B$="sequential?":GOSUB INIT_CORE_SET_FUNCTION: REM A=42
B$="cons":GOSUB INIT_CORE_SET_FUNCTION: REM A=43
B$="concat":GOSUB INIT_CORE_SET_FUNCTION: REM A=44
B$="nth":GOSUB INIT_CORE_SET_FUNCTION: REM A=45
B$="first":GOSUB INIT_CORE_SET_FUNCTION: REM A=46
B$="rest":GOSUB INIT_CORE_SET_FUNCTION: REM A=47
B$="empty?":GOSUB INIT_CORE_SET_FUNCTION: REM A=48
B$="count":GOSUB INIT_CORE_SET_FUNCTION: REM A=49
B$="conj":GOSUB INIT_CORE_SET_FUNCTION: REM A=50
B$="seq":GOSUB INIT_CORE_SET_FUNCTION: REM A=51
B$="with-meta":GOSUB INIT_CORE_SET_FUNCTION: REM A=52
B$="meta":GOSUB INIT_CORE_SET_FUNCTION: REM A=53
B$="atom":GOSUB INIT_CORE_SET_FUNCTION: REM A=54
B$="atom?":GOSUB INIT_CORE_SET_FUNCTION: REM A=55
B$="deref":GOSUB INIT_CORE_SET_FUNCTION: REM A=56
B$="reset!":GOSUB INIT_CORE_SET_FUNCTION: REM A=57
B$="eval":GOSUB INIT_CORE_SET_FUNCTION: REM A=58
B$="read-file":GOSUB INIT_CORE_SET_FUNCTION: REM A=59
B$="pr-memory-summary":GOSUB INIT_CORE_SET_FUNCTION: REM A=60
REM these are in DO_TCO_FUNCTION
A=65
B$="apply":GOSUB INIT_CORE_SET_FUNCTION: REM A=65
B$="map":GOSUB INIT_CORE_SET_FUNCTION: REM A=66
B$="swap!":GOSUB INIT_CORE_SET_FUNCTION: REM A=67
RETURN
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