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paolo.iocco
2023-03-13 08:36:51 +00:00
parent 5347889cd2
commit f29dcc4188
5439 changed files with 1065799 additions and 0 deletions
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trunk/workspace/AVR-Computer/msbasic/misc1.s Normal file
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.segment "CODE"
; ----------------------------------------------------------------------------
; CONVERT LINE NUMBER
; ----------------------------------------------------------------------------
LINGET:
ldx #$00
stx LINNUM
stx LINNUM+1
L28BE:
bcs L28B7
sbc #$2F
sta CHARAC
lda LINNUM+1
sta INDEX
cmp #$19
bcs L28A0
; <<<<<DANGEROUS CODE>>>>>
; NOTE THAT IF (A) = $AB ON THE LINE ABOVE,
; ON.1 WILL COMPARE = AND CAUSE A CATASTROPHIC
; JUMP TO $22D9 (FOR GOTO), OR OTHER LOCATIONS
; FOR OTHER CALLS TO LINGET.
;
; YOU CAN SEE THIS IS YOU FIRST PUT "BRK" IN $22D9,
; THEN TYPE "GO TO 437761".
;
; ANY VALUE FROM 437760 THROUGH 440319 WILL CAUSE
; THE PROBLEM. ($AB00 - $ABFF)
; <<<<<DANGEROUS CODE>>>>>
lda LINNUM
asl a
rol INDEX
asl a
rol INDEX
adc LINNUM
sta LINNUM
lda INDEX
adc LINNUM+1
sta LINNUM+1
asl LINNUM
rol LINNUM+1
lda LINNUM
adc CHARAC
sta LINNUM
bcc L28EC
inc LINNUM+1
L28EC:
jsr CHRGET
jmp L28BE
; ----------------------------------------------------------------------------
; "LET" STATEMENT
;
; LET <VAR> = <EXP>
; <VAR> = <EXP>
; ----------------------------------------------------------------------------
LET:
jsr PTRGET
sta FORPNT
sty FORPNT+1
lda #TOKEN_EQUAL
jsr SYNCHR
.ifndef CONFIG_SMALL
lda VALTYP+1
pha
.endif
lda VALTYP
pha
jsr FRMEVL
pla
rol a
jsr CHKVAL
bne LETSTRING
.ifndef CONFIG_SMALL
pla
LET2:
bpl L2923
jsr ROUND_FAC
jsr AYINT
ldy #$00
lda FAC+3
sta (FORPNT),y
iny
lda FAC+4
sta (FORPNT),y
rts
L2923:
.endif
; ----------------------------------------------------------------------------
; REAL VARIABLE = EXPRESSION
; ----------------------------------------------------------------------------
jmp SETFOR
LETSTRING:
.ifndef CONFIG_SMALL
pla
.endif
; ----------------------------------------------------------------------------
; INSTALL STRING, DESCRIPTOR ADDRESS IS AT FAC+3,4
; ----------------------------------------------------------------------------
PUTSTR:
.ifdef CONFIG_CBM_ALL
ldy FORPNT+1
.ifdef CBM1
cpy #$D0 ; TI$
.else
cpy #$DE
.endif
bne LC92B
jsr FREFAC
cmp #$06
.ifdef CBM2
bne IQERR1
.else
jne IQERR
.endif
ldy #$00
sty FAC
sty FACSIGN
LC8E8:
sty STRNG2
jsr LC91C
jsr MUL10
inc STRNG2
ldy STRNG2
jsr LC91C
jsr COPY_FAC_TO_ARG_ROUNDED
tax
beq LC902
inx
txa
jsr LD9BF
LC902:
ldy STRNG2
iny
cpy #$06
bne LC8E8
jsr MUL10
jsr QINT
ldx #$02
sei
LC912:
lda FAC+2,x
sta TISTR,x
dex
bpl LC912
cli
rts
LC91C:
lda (INDEX),y
jsr CHRGOT2
bcc LC926
IQERR1:
jmp IQERR
LC926:
sbc #$2F
jmp ADDACC
LC92B:
.endif
ldy #$02
lda (FAC_LAST-1),y
cmp FRETOP+1
bcc L2946
bne L2938
dey
lda (FAC_LAST-1),y
cmp FRETOP
bcc L2946
L2938:
ldy FAC_LAST
cpy VARTAB+1
bcc L2946
bne L294D
lda FAC_LAST-1
cmp VARTAB
bcs L294D
L2946:
lda FAC_LAST-1
ldy FAC_LAST
jmp L2963
L294D:
ldy #$00
lda (FAC_LAST-1),y
jsr STRINI
lda DSCPTR
ldy DSCPTR+1
sta STRNG1
sty STRNG1+1
jsr MOVINS
lda #FAC
ldy #$00
L2963:
sta DSCPTR
sty DSCPTR+1
jsr FRETMS
ldy #$00
lda (DSCPTR),y
sta (FORPNT),y
iny
lda (DSCPTR),y
sta (FORPNT),y
iny
lda (DSCPTR),y
sta (FORPNT),y
rts
.ifdef CONFIG_FILE
PRINTH:
jsr CMD
jmp LCAD6
CMD:
jsr GETBYT
beq LC98F
lda #$2C
jsr SYNCHR
LC98F:
php
jsr CHKOUT
stx CURDVC
plp
jmp PRINT
.endif