mirror of
https://github.com/cc65/cc65.git
synced 2024-11-04 17:04:58 +00:00
53dd513176
which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81
20 lines
263 B
ArmAsm
20 lines
263 B
ArmAsm
;
|
|
; Ullrich von Bassewitz, 06.08.1998
|
|
;
|
|
; CC65 runtime: Scale the primary register by 4
|
|
;
|
|
|
|
.export asrax2
|
|
.importzp tmp1
|
|
|
|
asrax2: stx tmp1
|
|
cpx #$80 ; Put bit 7 into carry
|
|
ror tmp1
|
|
ror a
|
|
cpx #$80
|
|
ror tmp1
|
|
ror a
|
|
ldx tmp1
|
|
rts
|
|
|