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Added function setdss to library 'stddef'

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This commit is contained in:
Curtis F Kaylor 2018-07-30 18:35:35 -04:00
parent 5b09345f3c
commit cca4e7aea1
3 changed files with 14 additions and 0 deletions
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7
doc/stddef.txt
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@ -53,6 +53,13 @@ The following functions are defined:
most significant byte, passed in the Y most significant byte, passed in the Y
register, to desthi. register, to desthi.
setdss(); Sets the destination pointer to the source
pointer.
Note: Calls the getsrc function, followed by
the setdst function, copying srclo and srchi
to dstlo and dsthi, respectively.
setsrd(); Sets the source pointer to the destination setsrd(); Sets the source pointer to the destination
pointer. pointer.

4
include/stddef.a02
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@ -28,6 +28,10 @@ RESRXY: LDX TEMP1 ;Load X Index
LDY TEMP2 ;Load Y Index LDY TEMP2 ;Load Y Index
RTS RTS
;Set Destinatioon Pointer to Source Pointer
SETDSS: JSR GETSRC ;Get Destination Pointer
JMP SETDST ;Store in Source Pointer
;Restore Destination Pointer ;Restore Destination Pointer
RESDST: JSR RESRXY ;Load Address and Drop into SETDST RESDST: JSR RESRXY ;Load Address and Drop into SETDST

3
include/stddef.h02
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@ -37,6 +37,9 @@ void savrxy();
/* Save Source Pointer */ /* Save Source Pointer */
void savsrc(); void savsrc();
/* Set Destination Pointer to Source Pointer */
void setdss();
/* Set Destination Pointer * /* Set Destination Pointer *
* Args: &d - Destination address */ * Args: &d - Destination address */
void setdst(); void setdst();