From a19907b3fbf2f3ae36e4f679b83fe1212ec7eeff Mon Sep 17 00:00:00 2001 From: Tobias Girstmair Date: Thu, 16 Jul 2020 12:11:19 +0200 Subject: [PATCH] clean up registers --- foo.S | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/foo.S b/foo.S index b88b476..ceb50b7 100644 --- a/foo.S +++ b/foo.S @@ -9,23 +9,21 @@ #define i0 r17 #define i1 r18 #define i2 r19 -; XXX: move registers down! -#define n r21 -#define s r22 -#define t r23 //==Ml -#define x r24 //==a1==Mh -#define _ r25 //==a2 +#define n r20 +#define s r21 +#define t r22 //==Ml +#define x r23 //==a1==Mh +#define _ r24 //==a2 +#define one r25 #define Xlo r26 #define Xhi r27 -#define one r28 +; r28 ; r29 ; r30 Zlo ; r31 Zhi ; aliases: #define Ml t //mod3 vars #define Mh x // -"- -#define a1 x //mul_ vars -#define a2 _ // -"- /* I/O REGISTERS */ OCR0AL = 0x26 @@ -91,6 +89,8 @@ mod3: ; mod3(Mh.Ml) -> t #undef tmp g: ; g(i, t) -> t + #define a1 x + #define a2 _ CLR a1 #define tmp _ @@ -162,6 +162,8 @@ g: ; g(i, t) -> t LSR a1 MOV t, a1 ;;TODO: use a1 in loop: directly + #undef a1 + #undef a2 RET main: ; setup routine -- 2.39.3