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56 lines
1.0 KiB
Plaintext
56 lines
1.0 KiB
Plaintext
NEW
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PREFIX /A2OSX.BUILD
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AUTO 4,1
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*/--------------------------------------
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* # GetArg.A
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* ## In:
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* A = argument index.
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* ## Out:
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* CC : success
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* Y,A = CStr To Arg[A]
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* CS : Out Of Bound
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*\--------------------------------------
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K.GetArg.A pha save requested arg#
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ldy #S.PS.hARGS
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lda (pPs),y
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jsr K.GetMemPtr.A
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plx we want 0 ?
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beq .80 yes, returns MemPtr
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>STYA ZPPtr1 no, save it
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.1 lda (ZPPtr1) end of ARG[]
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beq .9 yes, not found....
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.3 inc ZPPtr1 skip next one....
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bne .4
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inc ZPPtr1+1
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.4 lda (ZPPtr1)
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bne .3
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inc ZPPtr1 ....and point to next, or ending 0
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bne .5
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inc ZPPtr1+1
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.5 dex
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bne .1 stop here....
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lda (ZPPtr1) at end of ARGS[] ?
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beq .9
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.8 >LDYA ZPPtr1
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.80 clc
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rts
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.9 sec
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rts
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*--------------------------------------
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MAN
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SAVE /A2OSX.SRC/SYS/KERNEL.S.ARG
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LOAD /A2OSX.SRC/SYS/KERNEL.S
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ASM
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