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75 lines
1.3 KiB
Plaintext
75 lines
1.3 KiB
Plaintext
NEW
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AUTO 3,1
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*/--------------------------------------
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* # StrVGet
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* ## ASM
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* `>PUSHB hSTRV`
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* `>PUSHB index`
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* `>PUSHW ptr`
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* `>SYSCALL StrVGet`
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* ## RETURN VALUE
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* CC: Y,A = Ptr
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* CS: Y,A = NULL
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*\--------------------------------------
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K.StrVGet >PULLW FORPNT ptr
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*/--------------------------------------
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* # StrVShift
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* ## ASM
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* `>PUSHB hSTRV`
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* `>PUSHB index`
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* `>SYSCALL StrVShift`
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* ## RETURN VALUE
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*\--------------------------------------
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K.StrVShift >PULLA index
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eor #$ff
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tay
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>PULLA hSTRV
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jmp K.SYSCALL.JMPX
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*/--------------------------------------
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* # StrVAdd
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* ## ASM
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* `>PUSHB hSTRV`
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* `>PUSHW str`
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* `>SYSCALL StrVAdd`
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* ## RETURN VALUE
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* CC : str added to hSTRV
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* CS : hSTRV full
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*\--------------------------------------
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K.StrVAdd >PULLW TXTPTR str
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>PULLA
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jmp K.SYSCALL.JMPX
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*--------------------------------------
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STRV.Ptr1Ptr2cpy
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ldx #0
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ldy #0
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.4 lda (ZPPtr1),y
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sta (ZPPtr2),y
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beq .6
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.5 iny
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bne .4
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inc ZPPtr1+1
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inc ZPPtr2+1
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bra .4
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.6 inx
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iny
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bne .7
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inc ZPPtr1+1
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inc ZPPtr2+1
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.7 lda (ZPPtr1),y
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sta (ZPPtr2),y Ending \0 ?
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bne .5
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rts
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*--------------------------------------
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MAN
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SAVE usr/src/sys/kernel.s.strv
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LOAD usr/src/sys/kernel.s
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ASM
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