cc65/libsrc/runtime/subysp.s

;
; Piotr Fusik, 24.10.2003
; originally by Ullrich von Bassewitz
;
; CC65 runtime: Decrement the stackpointer by value in y
;

        .export         subysp
        .importzp       sp

.proc   subysp

        tya
        eor     #$ff
        sec
        adc     sp
        sta     sp
        bcs     @L1
        dec     sp+1
@L1:    rts

.endproc
More module splits git-svn-id: svn://svn.cc65.org/cc65/trunk@393 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-10-25 19:53:22 +00:00			`;`
Runtime function improvements by Piotr Fusik git-svn-id: svn://svn.cc65.org/cc65/trunk@2577 b7a2c559-68d2-44c3-8de9-860c34a00d81 2003-10-28 08:47:47 +00:00			`; Piotr Fusik, 24.10.2003`
			`; originally by Ullrich von Bassewitz`
More module splits git-svn-id: svn://svn.cc65.org/cc65/trunk@393 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-10-25 19:53:22 +00:00			`;`
			`; CC65 runtime: Decrement the stackpointer by value in y`
			`;`

Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 13:56:54 +02:00			`.export subysp`
			`.importzp sp`
More module splits git-svn-id: svn://svn.cc65.org/cc65/trunk@393 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-10-25 19:53:22 +00:00
Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 13:56:54 +02:00			`.proc subysp`
More module splits git-svn-id: svn://svn.cc65.org/cc65/trunk@393 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-10-25 19:53:22 +00:00
Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 13:56:54 +02:00			`tya`
			`eor #$ff`
			`sec`
			`adc sp`
			`sta sp`
			`bcs @L1`
			`dec sp+1`
			`@L1: rts`
More module splits git-svn-id: svn://svn.cc65.org/cc65/trunk@393 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-10-25 19:53:22 +00:00
			`.endproc`