A2osX/SYS/KERNEL.S.STRV.txt
2020-01-24 15:21:08 +01:00

157 lines
2.7 KiB
Plaintext
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

NEW
AUTO 3,1
*/--------------------------------------
* # NewStrV
* **In:**
* A = Initial Size (Page)
* ## RETURN VALUE
* X = hStrV
* Y,A = Ptr
*\--------------------------------------
K.NewStrV
*/--------------------------------------
* # StrVGet
* **In:**
* A = hStrV
* X = index
* ## RETURN VALUE
* Y,A = Ptr
*\--------------------------------------
K.StrVGet
*/--------------------------------------
* # StrVDup
* **In:**
* Y,A = Src StrV
* ## RETURN VALUE
* X = hMem of new StrV
* A = Str Count
*\--------------------------------------
K.StrVDup >STYA ZPPtr1
>STYA ZPPtr2
ldy #0
ldx #0
.1 lda (ZPPtr2),y
beq .2
.11 iny
bne .1
inx
inc ZPPtr2+1
bra .1
.2 iny
bne .3
inx
inc ZPPtr2+1
.3 lda (ZPPtr2),y
bne .11
txa
jsr K.getmem
bcs .9
>STYA ZPPtr2
phx
ldx #0
ldy #0
.4 lda (ZPPtr1),y
.5 sta (ZPPtr2),y
beq .6
iny
bne .4
inc ZPPtr1+1
inc ZPPtr2+1
bra .4
.6 inx
iny
bne .7
inc ZPPtr1+1
inc ZPPtr2+1
.7 lda (ZPPtr1),y
bne .5
sta (ZPPtr2),y Ending \0
txa
plx hMem
clc
.9 rts
*/--------------------------------------
* # Str2StrV
* Expand String and convert to ArgV List
* ## C
* short int str2strv(char* args, char* argv[])
* ## ASM
* `>PUSHW argv`
* `>LDYA args`
* `>SYSCALL Str2StrV`
* ## RETURN VALUE
* A = Arg count
*\--------------------------------------
ARG.bInQuote .EQ ZPPtr3
*--------------------------------------
K.Str2StrV jsr K.Expand
bcs .9
>STYA ZPPtr1
stx .80+1
>PULLW ZPPtr2 Get target buffer
ldx #0 Arg Count
stz ARG.bInQuote
.1 jsr SHARED.GetCharPtr1
beq .8
cmp #C.SPACE
beq .1 skip leading spaces
.2 cmp #'"' found a quote ?
bne .3
lda ARG.bInQuote
eor #$ff
sta ARG.bInQuote
bra .7 skip quote and check next char
.3 cmp #C.SPACE
bne .6 regular char ...store...
bit ARG.bInQuote
bmi .6 between quotes... store space...
inx Found one arg !!!
lda #0 set this token End
jsr SHARED.PutCharPtr2
bra .1
.6 jsr SHARED.PutCharPtr2
.7 jsr SHARED.GetCharPtr1
bne .2
inx
.8 jsr SHARED.PutCharPtr2 set Argv[x] Ending 0
sta (ZPPtr2) set Array Ending 0
phx
.80 lda #$FF SELF MODIFIED
jsr K.FreeMem Discard expanded string
pla get back Arg Count
* clc
rts
.9 >RET 2 Discard target buffer
*--------------------------------------
MAN
SAVE USR/SRC/SYS/KERNEL.S.STRV
LOAD USR/SRC/SYS/KERNEL.S
ASM