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forth: Word-ified "(print)"

This commit is contained in:
Virgil Dupras 2020-03-26 11:51:29 -04:00
parent 42abbe75aa
commit d1f572d2ed

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@ -696,16 +696,36 @@ EMIT:
.dw $-EMIT .dw $-EMIT
.db 7 .db 7
PRINT: PRINT:
.dw compiledWord ; a
; BBR mark
.dw DUP ; a a
.dw .getc ; a c
.dw DUP ; a c f
.dw CSKIP ; a c
; zero, end of string
.dw FBR
.db 12
.dw EMIT ; a
.dw NUMBER ; a 1
.dw 1
.dw PLUS ; a+1
.dw BBR
.db 21
; FBR mark
.dw DROP
.dw DROP
.dw EXIT
; Yes, very much like C@, but it has already been Forth-ified...
.getc:
.dw nativeWord .dw nativeWord
pop hl pop hl
call chkPS call chkPS
.loop: ld l, (hl)
ld a, (hl) ; load character to send ld h, 0
or a ; is it zero? push hl
jp z, next ; if yes, we're finished jp next
call PUTC
inc hl
jr .loop
.db "C," .db "C,"
.dw $-PRINT .dw $-PRINT