mirror of
https://github.com/hsoft/collapseos.git
synced 2024-11-23 15:38:06 +11:00
forth: make prev word field relative
This should help with upcoming challenges in bootstrapping z80 code compiled through Forth.
This commit is contained in:
Virgil Dupras
parent
00de336976
commit
ffe61a12f8
@ -7,7 +7,7 @@ AVRABIN = zasm/avra
|
||||
SHELLAPPS = zasm ed
|
||||
SHELLTGTS = ${SHELLAPPS:%=cfsin/%}
|
||||
# Those Forth source files are in a particular order
|
||||
FORTHSRCS = core.fs str.fs parse.fs readln.fs fmt.fs high.fs z80a.fs
|
||||
FORTHSRCS = core.fs str.fs parse.fs readln.fs fmt.fs high.fs z80a.fs dummy.fs
|
||||
FORTHSRC_PATHS = ${FORTHSRCS:%=../forth/%}
|
||||
CFSIN_CONTENTS = $(SHELLTGTS) cfsin/user.h
|
||||
OBJS = emul.o libz80/libz80.o
|
||||
|
||||
@ -34,6 +34,6 @@ emulPutC:
|
||||
out (STDIO_PORT), a
|
||||
ret
|
||||
|
||||
.dw 0 ; placeholder used in glue1.
|
||||
CODE_END:
|
||||
.out LATEST
|
||||
.out $ ; should be the same as in glue1
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
; Warning: The offsets of native dict entries must be exactly the same between
|
||||
; glue0.asm and glue1.asm
|
||||
.equ LATEST CODE_END ; override
|
||||
.equ LATEST RAMSTART ; override
|
||||
.equ STDIO_PORT 0x00
|
||||
|
||||
jp init
|
||||
@ -26,9 +26,6 @@ emulPutC:
|
||||
out (STDIO_PORT), a
|
||||
ret
|
||||
|
||||
.out $ ; should be the same as in glue0, minus 2
|
||||
; stage0 spits, at the beginning of the binary, the address of the latest word
|
||||
; Therefore, we can set the LATEST label to here and we should be good.
|
||||
CODE_END:
|
||||
.out $ ; should be the same as in glue0
|
||||
.bin "core.bin"
|
||||
RAMSTART:
|
||||
|
||||
@ -71,9 +71,6 @@ int main(int argc, char *argv[])
|
||||
|
||||
#ifndef DEBUG
|
||||
// We're done, now let's spit dict data
|
||||
// let's start with LATEST spitting.
|
||||
putchar(m->mem[CURRENT]);
|
||||
putchar(m->mem[CURRENT+1]);
|
||||
uint16_t here = m->mem[HERE] + (m->mem[HERE+1] << 8);
|
||||
for (int i=sizeof(KERNEL); i<here; i++) {
|
||||
putchar(m->mem[i]);
|
||||
|
||||
4
forth/dummy.fs
Normal file
4
forth/dummy.fs
Normal file
@ -0,0 +1,4 @@
|
||||
( When building a compiled dict, always include this unit at
|
||||
the end of it so that Forth knows how to hook LATEST into
|
||||
it )
|
||||
WORD _______ (entry)
|
||||
180
forth/forth.asm
180
forth/forth.asm
@ -119,12 +119,10 @@ forthMain:
|
||||
push af \ push af \ push af
|
||||
ld (INITIAL_SP), sp
|
||||
ld ix, RS_ADDR
|
||||
; LATEST is a *indirect* label to the latest entry of the dict. See
|
||||
; default at the bottom of dict.asm. This indirection allows us to
|
||||
; override latest to a value set in a binary dict compiled separately,
|
||||
; for example by the stage0 bin.
|
||||
; LATEST is a label to the latest entry of the dict. This can be
|
||||
; overridden if a binary dict has been grafted to the end of this
|
||||
; binary
|
||||
ld hl, LATEST
|
||||
call intoHL
|
||||
ld (CURRENT), hl
|
||||
ld hl, HERE_INITIAL
|
||||
ld (HERE), hl
|
||||
@ -416,9 +414,12 @@ find:
|
||||
call strncmp
|
||||
pop de ; <-- lvl 1, return to wordref
|
||||
jr z, .end ; found
|
||||
push hl ; .prev destroys HL
|
||||
call .prev
|
||||
pop hl
|
||||
jr nz, .inner
|
||||
; Z set? end of dict unset Z
|
||||
xor a
|
||||
inc a
|
||||
.end:
|
||||
pop bc
|
||||
@ -429,15 +430,21 @@ find:
|
||||
; Z is set if DE point to 0 (no entry). NZ if not.
|
||||
.prev:
|
||||
dec de \ dec de \ dec de ; prev field
|
||||
push de ; --> lvl 1
|
||||
ex de, hl
|
||||
call intoHL
|
||||
ex de, hl ; de preserved by intoHL, so no push/pop needed
|
||||
; DE points to prev. Is it zero?
|
||||
xor a
|
||||
or d
|
||||
ex de, hl ; DE contains prev offset
|
||||
pop hl ; <-- lvl 1
|
||||
; HL is prev field's addr
|
||||
; Is offset zero?
|
||||
ld a, d
|
||||
or e
|
||||
; Z will be set if DE is zero
|
||||
ret
|
||||
ret z ; no prev entry
|
||||
; get absolute addr from offset
|
||||
; carry cleared from "or e"
|
||||
sbc hl, de
|
||||
ex de, hl ; result in DE
|
||||
ret ; NZ set from SBC
|
||||
|
||||
; Checks flags Z and S and sets BC to 0 if Z, 1 if C and -1 otherwise
|
||||
flagsToBC:
|
||||
@ -519,11 +526,14 @@ chkPS:
|
||||
; It's important that this part is at the end of the resulting binary.
|
||||
; A dictionary entry has this structure:
|
||||
; - 7b name (zero-padded)
|
||||
; - 2b prev pointer
|
||||
; - 2b prev offset
|
||||
; - 1b flags (bit 0: IMMEDIATE)
|
||||
; - 2b code pointer
|
||||
; - Parameter field (PF)
|
||||
;
|
||||
; The prev offset is the number of bytes between the prev field and the
|
||||
; previous word's code pointer.
|
||||
;
|
||||
; The code pointer point to "word routines". These routines expect to be called
|
||||
; with IY pointing to the PF. They themselves are expected to end by jumping
|
||||
; to the address at (IP). They will usually do so with "jp next".
|
||||
@ -642,7 +652,7 @@ EXIT:
|
||||
; ( R:I -- )
|
||||
.db "QUIT"
|
||||
.fill 3
|
||||
.dw EXIT
|
||||
.dw $-EXIT
|
||||
.db 0
|
||||
QUIT:
|
||||
.dw compiledWord
|
||||
@ -659,7 +669,7 @@ QUIT:
|
||||
|
||||
.db "ABORT"
|
||||
.fill 2
|
||||
.dw QUIT
|
||||
.dw $-QUIT
|
||||
.db 0
|
||||
ABORT:
|
||||
.dw compiledWord
|
||||
@ -685,7 +695,7 @@ abortUnderflow:
|
||||
|
||||
.db "BYE"
|
||||
.fill 4
|
||||
.dw ABORT
|
||||
.dw $-ABORT
|
||||
.db 0
|
||||
BYE:
|
||||
.dw nativeWord
|
||||
@ -700,7 +710,7 @@ BYE:
|
||||
; ( c -- )
|
||||
.db "EMIT"
|
||||
.fill 3
|
||||
.dw BYE
|
||||
.dw $-BYE
|
||||
.db 0
|
||||
EMIT:
|
||||
.dw nativeWord
|
||||
@ -711,7 +721,7 @@ EMIT:
|
||||
jp next
|
||||
|
||||
.db "(print)"
|
||||
.dw EMIT
|
||||
.dw $-EMIT
|
||||
.db 0
|
||||
PRINT:
|
||||
.dw nativeWord
|
||||
@ -728,7 +738,7 @@ PRINT:
|
||||
; ( c port -- )
|
||||
.db "PC!"
|
||||
.fill 4
|
||||
.dw PRINT
|
||||
.dw $-PRINT
|
||||
.db 0
|
||||
PSTORE:
|
||||
.dw nativeWord
|
||||
@ -741,7 +751,7 @@ PSTORE:
|
||||
; ( port -- c )
|
||||
.db "PC@"
|
||||
.fill 4
|
||||
.dw PSTORE
|
||||
.dw $-PSTORE
|
||||
.db 0
|
||||
PFETCH:
|
||||
.dw nativeWord
|
||||
@ -754,7 +764,7 @@ PFETCH:
|
||||
|
||||
.db "C,"
|
||||
.fill 5
|
||||
.dw PFETCH
|
||||
.dw $-PFETCH
|
||||
.db 0
|
||||
CWR:
|
||||
.dw nativeWord
|
||||
@ -769,7 +779,7 @@ CWR:
|
||||
|
||||
.db ","
|
||||
.fill 6
|
||||
.dw CWR
|
||||
.dw $-CWR
|
||||
.db 0
|
||||
WR:
|
||||
.dw nativeWord
|
||||
@ -782,7 +792,7 @@ WR:
|
||||
|
||||
|
||||
.db "ROUTINE"
|
||||
.dw WR
|
||||
.dw $-WR
|
||||
.db 1 ; IMMEDIATE
|
||||
ROUTINE:
|
||||
.dw compiledWord
|
||||
@ -818,6 +828,9 @@ ROUTINE:
|
||||
jr z, .end
|
||||
ld de, NUMBER
|
||||
cp 'N'
|
||||
jr z, .end
|
||||
ld de, chkPS
|
||||
cp 'P'
|
||||
jr nz, .notgood
|
||||
; continue to end on match
|
||||
.end:
|
||||
@ -834,7 +847,7 @@ ROUTINE:
|
||||
|
||||
; ( addr -- )
|
||||
.db "EXECUTE"
|
||||
.dw ROUTINE
|
||||
.dw $-ROUTINE
|
||||
.db 0
|
||||
EXECUTE:
|
||||
.dw nativeWord
|
||||
@ -851,7 +864,7 @@ EXECUTE:
|
||||
|
||||
.db ";"
|
||||
.fill 6
|
||||
.dw EXECUTE
|
||||
.dw $-EXECUTE
|
||||
.db 1 ; IMMEDIATE
|
||||
ENDDEF:
|
||||
.dw compiledWord
|
||||
@ -866,7 +879,7 @@ ENDDEF:
|
||||
|
||||
.db ":"
|
||||
.fill 6
|
||||
.dw ENDDEF
|
||||
.dw $-ENDDEF
|
||||
.db 1 ; IMMEDIATE
|
||||
DEFINE:
|
||||
.dw compiledWord
|
||||
@ -911,7 +924,7 @@ DEFINE:
|
||||
|
||||
.db "DOES>"
|
||||
.fill 2
|
||||
.dw DEFINE
|
||||
.dw $-DEFINE
|
||||
.db 0
|
||||
DOES:
|
||||
.dw nativeWord
|
||||
@ -932,7 +945,7 @@ DOES:
|
||||
|
||||
|
||||
.db "IMMEDIA"
|
||||
.dw DOES
|
||||
.dw $-DOES
|
||||
.db 0
|
||||
IMMEDIATE:
|
||||
.dw nativeWord
|
||||
@ -944,7 +957,7 @@ IMMEDIATE:
|
||||
|
||||
.db "IMMED?"
|
||||
.fill 1
|
||||
.dw IMMEDIATE
|
||||
.dw $-IMMEDIATE
|
||||
.db 0
|
||||
ISIMMED:
|
||||
.dw nativeWord
|
||||
@ -962,7 +975,7 @@ ISIMMED:
|
||||
; ( n -- )
|
||||
.db "LITN"
|
||||
.fill 3
|
||||
.dw ISIMMED
|
||||
.dw $-ISIMMED
|
||||
.db 0
|
||||
LITN:
|
||||
.dw nativeWord
|
||||
@ -977,7 +990,7 @@ LITN:
|
||||
|
||||
.db "SCPY"
|
||||
.fill 3
|
||||
.dw LITN
|
||||
.dw $-LITN
|
||||
.db 0
|
||||
SCPY:
|
||||
.dw nativeWord
|
||||
@ -990,7 +1003,7 @@ SCPY:
|
||||
|
||||
.db "(find)"
|
||||
.fill 1
|
||||
.dw SCPY
|
||||
.dw $-SCPY
|
||||
.db 0
|
||||
FIND_:
|
||||
.dw nativeWord
|
||||
@ -1010,7 +1023,7 @@ FIND_:
|
||||
|
||||
.db "'"
|
||||
.fill 6
|
||||
.dw FIND_
|
||||
.dw $-FIND_
|
||||
.db 0
|
||||
FIND:
|
||||
.dw compiledWord
|
||||
@ -1022,7 +1035,7 @@ FIND:
|
||||
|
||||
.db "[']"
|
||||
.fill 4
|
||||
.dw FIND
|
||||
.dw $-FIND
|
||||
.db 0b01 ; IMMEDIATE
|
||||
FINDI:
|
||||
.dw compiledWord
|
||||
@ -1044,7 +1057,7 @@ FINDERR:
|
||||
; ( -- c )
|
||||
.db "KEY"
|
||||
.fill 4
|
||||
.dw FINDI
|
||||
.dw $-FINDI
|
||||
.db 0
|
||||
KEY:
|
||||
.dw nativeWord
|
||||
@ -1073,7 +1086,7 @@ CIN:
|
||||
; 32 CMP 1 -
|
||||
.db "WS?"
|
||||
.fill 4
|
||||
.dw KEY
|
||||
.dw $-KEY
|
||||
.db 0
|
||||
ISWS:
|
||||
.dw compiledWord
|
||||
@ -1087,7 +1100,7 @@ ISWS:
|
||||
|
||||
.db "NOT"
|
||||
.fill 4
|
||||
.dw ISWS
|
||||
.dw $-ISWS
|
||||
.db 0
|
||||
NOT:
|
||||
.dw nativeWord
|
||||
@ -1107,7 +1120,7 @@ NOT:
|
||||
; C< DUP 32 CMP 1 - SKIP? EXIT DROP TOWORD
|
||||
.db "TOWORD"
|
||||
.fill 1
|
||||
.dw NOT
|
||||
.dw $-NOT
|
||||
.db 0
|
||||
TOWORD:
|
||||
.dw compiledWord
|
||||
@ -1124,7 +1137,7 @@ TOWORD:
|
||||
; HL point to WORDBUF.
|
||||
.db "WORD"
|
||||
.fill 3
|
||||
.dw TOWORD
|
||||
.dw $-TOWORD
|
||||
.db 0
|
||||
WORD:
|
||||
.dw compiledWord
|
||||
@ -1171,7 +1184,7 @@ WORD:
|
||||
|
||||
|
||||
.db "(parsed"
|
||||
.dw WORD
|
||||
.dw $-WORD
|
||||
.db 0
|
||||
PARSED:
|
||||
.dw nativeWord
|
||||
@ -1192,7 +1205,7 @@ PARSED:
|
||||
|
||||
|
||||
.db "(parse)"
|
||||
.dw PARSED
|
||||
.dw $-PARSED
|
||||
.db 0
|
||||
PARSE:
|
||||
.dw compiledWord
|
||||
@ -1222,7 +1235,7 @@ PARSEI:
|
||||
; Spit name (in (HL)) + prev in (HERE) and adjust (HERE) and (CURRENT)
|
||||
; HL points to new (HERE)
|
||||
.db "(entry)"
|
||||
.dw PARSE
|
||||
.dw $-PARSE
|
||||
.db 0
|
||||
ENTRYHEAD:
|
||||
.dw nativeWord
|
||||
@ -1233,6 +1246,11 @@ ENTRYHEAD:
|
||||
ld de, (CURRENT)
|
||||
ld a, NAMELEN
|
||||
call addHL
|
||||
push hl ; --> lvl 1
|
||||
or a ; clear carry
|
||||
sbc hl, de
|
||||
ex de, hl
|
||||
pop hl ; <-- lvl 1
|
||||
call DEinHL
|
||||
; Set word flags: not IMMED, so it's 0
|
||||
xor a
|
||||
@ -1250,7 +1268,7 @@ ENTRYHEAD:
|
||||
; this word is not documented in dictionary.txt
|
||||
.db "(sysv)"
|
||||
.fill 1
|
||||
.dw ENTRYHEAD
|
||||
.dw $-ENTRYHEAD
|
||||
.db 0
|
||||
SYSV:
|
||||
.dw compiledWord
|
||||
@ -1278,21 +1296,21 @@ SYSV:
|
||||
|
||||
.db "HERE"
|
||||
.fill 3
|
||||
.dw SYSV
|
||||
.dw $-SYSV
|
||||
.db 0
|
||||
HERE_: ; Caution: conflicts with actual variable name
|
||||
.dw sysvarWord
|
||||
.dw HERE
|
||||
|
||||
.db "CURRENT"
|
||||
.dw HERE_
|
||||
.dw $-HERE_
|
||||
.db 0
|
||||
CURRENT_:
|
||||
.dw sysvarWord
|
||||
.dw CURRENT
|
||||
|
||||
.db "(parse*"
|
||||
.dw CURRENT_
|
||||
.dw $-CURRENT_
|
||||
.db 0
|
||||
PARSEPTR_:
|
||||
.dw sysvarWord
|
||||
@ -1300,7 +1318,7 @@ PARSEPTR_:
|
||||
|
||||
.db "FLAGS"
|
||||
.fill 2
|
||||
.dw PARSEPTR_
|
||||
.dw $-PARSEPTR_
|
||||
.db 0
|
||||
FLAGS_:
|
||||
.dw sysvarWord
|
||||
@ -1309,7 +1327,7 @@ FLAGS_:
|
||||
; ( n a -- )
|
||||
.db "!"
|
||||
.fill 6
|
||||
.dw FLAGS_
|
||||
.dw $-FLAGS_
|
||||
.db 0
|
||||
STORE:
|
||||
.dw nativeWord
|
||||
@ -1323,7 +1341,7 @@ STORE:
|
||||
; ( n a -- )
|
||||
.db "C!"
|
||||
.fill 5
|
||||
.dw STORE
|
||||
.dw $-STORE
|
||||
.db 0
|
||||
CSTORE:
|
||||
.dw nativeWord
|
||||
@ -1336,7 +1354,7 @@ CSTORE:
|
||||
; ( a -- n )
|
||||
.db "@"
|
||||
.fill 6
|
||||
.dw CSTORE
|
||||
.dw $-CSTORE
|
||||
.db 0
|
||||
FETCH:
|
||||
.dw nativeWord
|
||||
@ -1349,7 +1367,7 @@ FETCH:
|
||||
; ( a -- c )
|
||||
.db "C@"
|
||||
.fill 5
|
||||
.dw FETCH
|
||||
.dw $-FETCH
|
||||
.db 0
|
||||
CFETCH:
|
||||
.dw nativeWord
|
||||
@ -1363,7 +1381,7 @@ CFETCH:
|
||||
; ( a -- )
|
||||
.db "DROP"
|
||||
.fill 3
|
||||
.dw CFETCH
|
||||
.dw $-CFETCH
|
||||
.db 0
|
||||
DROP:
|
||||
.dw nativeWord
|
||||
@ -1373,7 +1391,7 @@ DROP:
|
||||
; ( a b -- b a )
|
||||
.db "SWAP"
|
||||
.fill 3
|
||||
.dw DROP
|
||||
.dw $-DROP
|
||||
.db 0
|
||||
SWAP:
|
||||
.dw nativeWord
|
||||
@ -1386,7 +1404,7 @@ SWAP:
|
||||
; ( a b c d -- c d a b )
|
||||
.db "2SWAP"
|
||||
.fill 2
|
||||
.dw SWAP
|
||||
.dw $-SWAP
|
||||
.db 0
|
||||
SWAP2:
|
||||
.dw nativeWord
|
||||
@ -1404,7 +1422,7 @@ SWAP2:
|
||||
; ( a -- a a )
|
||||
.db "DUP"
|
||||
.fill 4
|
||||
.dw SWAP2
|
||||
.dw $-SWAP2
|
||||
.db 0
|
||||
DUP:
|
||||
.dw nativeWord
|
||||
@ -1417,7 +1435,7 @@ DUP:
|
||||
; ( a b -- a b a b )
|
||||
.db "2DUP"
|
||||
.fill 3
|
||||
.dw DUP
|
||||
.dw $-DUP
|
||||
.db 0
|
||||
DUP2:
|
||||
.dw nativeWord
|
||||
@ -1433,7 +1451,7 @@ DUP2:
|
||||
; ( a b -- a b a )
|
||||
.db "OVER"
|
||||
.fill 3
|
||||
.dw DUP2
|
||||
.dw $-DUP2
|
||||
.db 0
|
||||
OVER:
|
||||
.dw nativeWord
|
||||
@ -1448,7 +1466,7 @@ OVER:
|
||||
; ( a b c d -- a b c d a b )
|
||||
.db "2OVER"
|
||||
.fill 2
|
||||
.dw OVER
|
||||
.dw $-OVER
|
||||
.db 0
|
||||
OVER2:
|
||||
.dw nativeWord
|
||||
@ -1468,7 +1486,7 @@ OVER2:
|
||||
; ( a b c -- b c a)
|
||||
.db "ROT"
|
||||
.fill 4
|
||||
.dw OVER2
|
||||
.dw $-OVER2
|
||||
.db 0
|
||||
ROT:
|
||||
.dw nativeWord
|
||||
@ -1483,7 +1501,7 @@ ROT:
|
||||
|
||||
.db ">R"
|
||||
.fill 5
|
||||
.dw ROT
|
||||
.dw $-ROT
|
||||
.db 0
|
||||
P2R:
|
||||
.dw nativeWord
|
||||
@ -1494,7 +1512,7 @@ P2R:
|
||||
|
||||
.db "R>"
|
||||
.fill 5
|
||||
.dw P2R
|
||||
.dw $-P2R
|
||||
.db 0
|
||||
R2P:
|
||||
.dw nativeWord
|
||||
@ -1504,7 +1522,7 @@ R2P:
|
||||
|
||||
.db "I"
|
||||
.fill 6
|
||||
.dw R2P
|
||||
.dw $-R2P
|
||||
.db 0
|
||||
I:
|
||||
.dw nativeWord
|
||||
@ -1515,7 +1533,7 @@ I:
|
||||
|
||||
.db "I'"
|
||||
.fill 5
|
||||
.dw I
|
||||
.dw $-I
|
||||
.db 0
|
||||
IPRIME:
|
||||
.dw nativeWord
|
||||
@ -1526,7 +1544,7 @@ IPRIME:
|
||||
|
||||
.db "J"
|
||||
.fill 6
|
||||
.dw IPRIME
|
||||
.dw $-IPRIME
|
||||
.db 0
|
||||
J:
|
||||
.dw nativeWord
|
||||
@ -1538,7 +1556,7 @@ J:
|
||||
; ( a b -- c ) A + B
|
||||
.db "+"
|
||||
.fill 6
|
||||
.dw J
|
||||
.dw $-J
|
||||
.db 0
|
||||
PLUS:
|
||||
.dw nativeWord
|
||||
@ -1552,7 +1570,7 @@ PLUS:
|
||||
; ( a b -- c ) A - B
|
||||
.db "-"
|
||||
.fill 6
|
||||
.dw PLUS
|
||||
.dw $-PLUS
|
||||
.db 0
|
||||
MINUS:
|
||||
.dw nativeWord
|
||||
@ -1567,7 +1585,7 @@ MINUS:
|
||||
; ( a b -- c ) A * B
|
||||
.db "*"
|
||||
.fill 6
|
||||
.dw MINUS
|
||||
.dw $-MINUS
|
||||
.db 0
|
||||
MULT:
|
||||
.dw nativeWord
|
||||
@ -1594,7 +1612,7 @@ MULT:
|
||||
|
||||
.db "/MOD"
|
||||
.fill 3
|
||||
.dw MULT
|
||||
.dw $-MULT
|
||||
.db 0
|
||||
DIVMOD:
|
||||
.dw nativeWord
|
||||
@ -1609,7 +1627,7 @@ DIVMOD:
|
||||
|
||||
.db "AND"
|
||||
.fill 4
|
||||
.dw DIVMOD
|
||||
.dw $-DIVMOD
|
||||
.db 0
|
||||
AND:
|
||||
.dw nativeWord
|
||||
@ -1627,7 +1645,7 @@ AND:
|
||||
|
||||
.db "OR"
|
||||
.fill 5
|
||||
.dw AND
|
||||
.dw $-AND
|
||||
.db 0
|
||||
OR:
|
||||
.dw nativeWord
|
||||
@ -1645,7 +1663,7 @@ OR:
|
||||
|
||||
.db "XOR"
|
||||
.fill 4
|
||||
.dw OR
|
||||
.dw $-OR
|
||||
.db 0
|
||||
XOR:
|
||||
.dw nativeWord
|
||||
@ -1667,7 +1685,7 @@ XOR:
|
||||
|
||||
.db "0"
|
||||
.fill 6
|
||||
.dw XOR
|
||||
.dw $-XOR
|
||||
.db 0
|
||||
ZERO:
|
||||
.dw nativeWord
|
||||
@ -1677,7 +1695,7 @@ ZERO:
|
||||
|
||||
.db "1"
|
||||
.fill 6
|
||||
.dw ZERO
|
||||
.dw $-ZERO
|
||||
.db 0
|
||||
ONE:
|
||||
.dw nativeWord
|
||||
@ -1688,7 +1706,7 @@ ONE:
|
||||
; ( a1 a2 -- b )
|
||||
.db "SCMP"
|
||||
.fill 3
|
||||
.dw ONE
|
||||
.dw $-ONE
|
||||
.db 0
|
||||
SCMP:
|
||||
.dw nativeWord
|
||||
@ -1703,7 +1721,7 @@ SCMP:
|
||||
; ( n1 n2 -- f )
|
||||
.db "CMP"
|
||||
.fill 4
|
||||
.dw SCMP
|
||||
.dw $-SCMP
|
||||
.db 0
|
||||
CMP:
|
||||
.dw nativeWord
|
||||
@ -1721,7 +1739,7 @@ CMP:
|
||||
; to after null-termination.
|
||||
.db "SKIP?"
|
||||
.fill 2
|
||||
.dw CMP
|
||||
.dw $-CMP
|
||||
.db 0
|
||||
CSKIP:
|
||||
.dw nativeWord
|
||||
@ -1779,7 +1797,7 @@ CSKIP:
|
||||
; contain 3. Add this value to RS.
|
||||
.db "(fbr)"
|
||||
.fill 2
|
||||
.dw CSKIP
|
||||
.dw $-CSKIP
|
||||
.db 0
|
||||
FBR:
|
||||
.dw nativeWord
|
||||
@ -1793,7 +1811,7 @@ FBR:
|
||||
|
||||
.db "(bbr)"
|
||||
.fill 2
|
||||
.dw FBR
|
||||
.dw $-FBR
|
||||
.db 0
|
||||
BBR:
|
||||
.dw nativeWord
|
||||
@ -1805,5 +1823,11 @@ BBR:
|
||||
ld (IP), hl
|
||||
jp next
|
||||
|
||||
; To allow dict binaries to "hook themselves up", we always end such binary
|
||||
; with a dummy, *empty* entry. Therefore, we can have a predictable place for
|
||||
; getting a prev label.
|
||||
|
||||
.db "_______"
|
||||
.dw $-BBR
|
||||
.db 0
|
||||
LATEST:
|
||||
.dw BBR
|
||||
|
||||
Loading…
Reference in New Issue
Block a user