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comparison doc/disas_examples/mips.eabi.disas @ 529:fe694c7677b4

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- mips eabi doc disas examples
author Tassilo Philipp
date Thu, 14 Apr 2022 21:18:02 +0200
parents 06c9adae114d
children
comparison
equal deleted inserted replaced
528:e56241bba0f5 529:fe694c7677b4
607 94: afc9003c sw t1,60(s8) 607 94: afc9003c sw t1,60(s8)
608 98: afca0040 sw t2,64(s8) 608 98: afca0040 sw t2,64(s8)
609 9c: afcb0044 sw t3,68(s8) 609 9c: afcb0044 sw t3,68(s8)
610 610
611 611
612
613 ; ---------- structs by value ---------->
614 ;
615 ; struct A { int i, j; long long l; };
616 ;
617 ; void leaf_call(int b, int c, int d, int e, struct A f, int g, int h)
618 ; {
619 ; }
620 ;
621 ; void nonleaf_call(int a, int b, int c, int d, int e, struct A f, int g, int h)
622 ; {
623 ; /* use some local data */
624 ; char l[100] ={ 'L'};
625 ; leaf_call(b, c, d, e, f, g, h);
626 ; }
627 ;
628 ; int main()
629 ; {
630 ; nonleaf_call(0, 1, 2, 3, 4, (struct A){5, 6, 7ll}, 8, 9);
631 ; return 0;
632 ; }
633
634
635
636 ; output from psptoolchain-20111215-psp w/ gcc 4.9.3
637
638 00000000 <leaf_call>:
639 0: 27bdffd0 addiu sp,sp,-48
640 4: afbe002c sw s8,44(sp)
641 8: afb00028 sw s0,40(sp)
642 c: 03a0f021 move s8,sp
643 10: afc40010 sw a0,16(s8)
644 14: afc50014 sw a1,20(s8)
645 18: afc60018 sw a2,24(s8)
646 1c: afc7001c sw a3,28(s8)
647 20: 01008021 move s0,t0
648 24: afc90020 sw t1,32(s8)
649 28: afca0024 sw t2,36(s8)
650 2c: 8e050000 lw a1,0(s0)
651 30: 8e040004 lw a0,4(s0)
652 34: 8e030008 lw v1,8(s0)
653 38: 8e02000c lw v0,12(s0)
654 3c: afc50000 sw a1,0(s8)
655 40: afc40004 sw a0,4(s8)
656 44: afc30008 sw v1,8(s8)
657 48: afc2000c sw v0,12(s8)
658 4c: 03c0e821 move sp,s8
659 50: 8fbe002c lw s8,44(sp)
660 54: 8fb00028 lw s0,40(sp)
661 58: 27bd0030 addiu sp,sp,48
662 5c: 03e00008 jr ra
663 60: 00000000 nop
664
665 00000064 <nonleaf_call>:
666 64: 27bdff58 addiu sp,sp,-168
667 68: afbf00a4 sw ra,164(sp)
668 6c: afbe00a0 sw s8,160(sp)
669 70: afb0009c sw s0,156(sp)
670 74: 03a0f021 move s8,sp
671 78: afc40078 sw a0,120(s8)
672 7c: afc5007c sw a1,124(s8)
673 80: afc60080 sw a2,128(s8)
674 84: afc70084 sw a3,132(s8)
675 88: afc80088 sw t0,136(s8)
676 8c: 01208021 move s0,t1
677 90: afca008c sw t2,140(s8)
678 94: afcb0090 sw t3,144(s8)
679 98: 8e050000 lw a1,0(s0)
680 9c: 8e040004 lw a0,4(s0)
681 a0: 8e030008 lw v1,8(s0)
682 a4: 8e02000c lw v0,12(s0)
683 a8: afc50000 sw a1,0(s8)
684 ac: afc40004 sw a0,4(s8)
685 b0: afc30008 sw v1,8(s8)
686 b4: afc2000c sw v0,12(s8)
687 b8: 27c30010 addiu v1,s8,16
688 bc: 24020064 li v0,100
689 c0: 00602021 move a0,v1
690 c4: 00002821 move a1,zero
691 c8: 00403021 move a2,v0
692 cc: 0c000000 jal 0 <leaf_call>
693 d0: 00000000 nop
694 d4: 2402004c li v0,76
695 d8: a3c20010 sb v0,16(s8)
696 dc: 8fc4007c lw a0,124(s8)
697 e0: 8fc50080 lw a1,128(s8)
698 e4: 8fc60084 lw a2,132(s8)
699 e8: 8fc70088 lw a3,136(s8)
700 ec: 03c04021 move t0,s8
701 f0: 8fc9008c lw t1,140(s8)
702 f4: 8fca0090 lw t2,144(s8)
703 f8: 0c000000 jal 0 <leaf_call>
704 fc: 00000000 nop
705 100: 03c0e821 move sp,s8
706 104: 8fbf00a4 lw ra,164(sp)
707 108: 8fbe00a0 lw s8,160(sp)
708 10c: 8fb0009c lw s0,156(sp)
709 110: 27bd00a8 addiu sp,sp,168
710 114: 03e00008 jr ra
711 118: 00000000 nop
712
713 0000011c <main>:
714 11c: 27bdffe8 addiu sp,sp,-24
715 120: afbf0014 sw ra,20(sp)
716 124: afbe0010 sw s8,16(sp)
717 128: 03a0f021 move s8,sp
718 12c: 24020005 li v0,5
719 130: afc20000 sw v0,0(s8)
720 134: 24020006 li v0,6
721 138: afc20004 sw v0,4(s8)
722 13c: 24020007 li v0,7
723 140: 00001821 move v1,zero
724 144: afc20008 sw v0,8(s8)
725 148: afc3000c sw v1,12(s8)
726 14c: 00002021 move a0,zero
727 150: 24050001 li a1,1
728 154: 24060002 li a2,2
729 158: 24070003 li a3,3
730 15c: 24080004 li t0,4
731 160: 03c04821 move t1,s8
732 164: 240a0008 li t2,8
733 168: 240b0009 li t3,9
734 16c: 0c000000 jal 0 <leaf_call>
735 170: 00000000 nop
736 174: 00001021 move v0,zero
737 178: 03c0e821 move sp,s8
738 17c: 8fbf0014 lw ra,20(sp)
739 180: 8fbe0010 lw s8,16(sp)
740 184: 27bd0018 addiu sp,sp,24
741 188: 03e00008 jr ra
742 18c: 00000000 nop
743
744
745
746
747 ; ---------- structs by value, complex example (multiple structs) ---------->
748 ;
749 ; struct A { int i, j; float f; };
750 ; struct B { double d; long long l; };
751 ;
752 ; void leaf_call(int b, struct A c, struct B d, int e, int f, struct A g, struct B h, int i, int j)
753 ; {
754 ; }
755 ;
756 ; void nonleaf_call(int a, int b, struct A c, struct B d, int e, int f, struct A g, struct B h, int i, int j)
757 ; {
758 ; /* use some local data */
759 ; char l[100] ={ 'L'};
760 ; leaf_call(b, c, d, e, f, g, h, i, j);
761 ; }
762 ;
763 ; int main()
764 ; {
765 ; nonleaf_call(0, 1, (struct A){2, 3, 4.f}, (struct B){5., 6ll}, 7, 8, (struct A){9, 10, 11.f}, (struct B){12., 13ll}, 14, 15);
766 ; return 0;
767 ; }
768
769
770
771 ; output from psptoolchain-20111215-psp w/ gcc 4.9.3
772
773 00000000 <leaf_call>:
774 0: 27bdff98 addiu sp,sp,-104
775 4: afbe0064 sw s8,100(sp)
776 8: afb30060 sw s3,96(sp)
777 c: afb2005c sw s2,92(sp)
778 10: afb10058 sw s1,88(sp)
779 14: afb00054 sw s0,84(sp)
780 18: 03a0f021 move s8,sp
781 1c: afc40040 sw a0,64(s8)
782 20: 00a09821 move s3,a1
783 24: 00c08821 move s1,a2
784 28: afc70044 sw a3,68(s8)
785 2c: afc80048 sw t0,72(s8)
786 30: 01209021 move s2,t1
787 34: 01408021 move s0,t2
788 38: afcb004c sw t3,76(s8)
789 3c: 8e640000 lw a0,0(s3)
790 40: 8e630004 lw v1,4(s3)
791 44: 8e620008 lw v0,8(s3)
792 48: afc40030 sw a0,48(s8)
793 4c: afc30034 sw v1,52(s8)
794 50: afc20038 sw v0,56(s8)
795 54: 8e250000 lw a1,0(s1)
796 58: 8e240004 lw a0,4(s1)
797 5c: 8e230008 lw v1,8(s1)
798 60: 8e22000c lw v0,12(s1)
799 64: afc50020 sw a1,32(s8)
800 68: afc40024 sw a0,36(s8)
801 6c: afc30028 sw v1,40(s8)
802 70: afc2002c sw v0,44(s8)
803 74: 8e440000 lw a0,0(s2)
804 78: 8e430004 lw v1,4(s2)
805 7c: 8e420008 lw v0,8(s2)
806 80: afc40010 sw a0,16(s8)
807 84: afc30014 sw v1,20(s8)
808 88: afc20018 sw v0,24(s8)
809 8c: 8e050000 lw a1,0(s0)
810 90: 8e040004 lw a0,4(s0)
811 94: 8e030008 lw v1,8(s0)
812 98: 8e02000c lw v0,12(s0)
813 9c: afc50000 sw a1,0(s8)
814 a0: afc40004 sw a0,4(s8)
815 a4: afc30008 sw v1,8(s8)
816 a8: afc2000c sw v0,12(s8)
817 ac: 03c0e821 move sp,s8
818 b0: 8fbe0064 lw s8,100(sp)
819 b4: 8fb30060 lw s3,96(sp)
820 b8: 8fb2005c lw s2,92(sp)
821 bc: 8fb10058 lw s1,88(sp)
822 c0: 8fb00054 lw s0,84(sp)
823 c4: 27bd0068 addiu sp,sp,104
824 c8: 03e00008 jr ra
825 cc: 00000000 nop
826
827 000000d0 <nonleaf_call>:
828 d0: 27bdff30 addiu sp,sp,-208
829 d4: afbf00cc sw ra,204(sp)
830 d8: afbe00c8 sw s8,200(sp)
831 dc: afb300c4 sw s3,196(sp)
832 e0: afb200c0 sw s2,192(sp)
833 e4: afb100bc sw s1,188(sp)
834 e8: afb000b8 sw s0,184(sp)
835 ec: 03a0f021 move s8,sp
836 f0: afc400a8 sw a0,168(s8)
837 f4: afc500ac sw a1,172(s8)
838 f8: 00c09821 move s3,a2
839 fc: 00e08821 move s1,a3
840 100: afc800b0 sw t0,176(s8)
841 104: afc900b4 sw t1,180(s8)
842 108: 01409021 move s2,t2
843 10c: 01608021 move s0,t3
844 110: 8e640000 lw a0,0(s3)
845 114: 8e630004 lw v1,4(s3)
846 118: 8e620008 lw v0,8(s3)
847 11c: afc40038 sw a0,56(s8)
848 120: afc3003c sw v1,60(s8)
849 124: afc20040 sw v0,64(s8)
850 128: 8e250000 lw a1,0(s1)
851 12c: 8e240004 lw a0,4(s1)
852 130: 8e230008 lw v1,8(s1)
853 134: 8e22000c lw v0,12(s1)
854 138: afc50028 sw a1,40(s8)
855 13c: afc4002c sw a0,44(s8)
856 140: afc30030 sw v1,48(s8)
857 144: afc20034 sw v0,52(s8)
858 148: 8e440000 lw a0,0(s2)
859 14c: 8e430004 lw v1,4(s2)
860 150: 8e420008 lw v0,8(s2)
861 154: afc40018 sw a0,24(s8)
862 158: afc3001c sw v1,28(s8)
863 15c: afc20020 sw v0,32(s8)
864 160: 8e050000 lw a1,0(s0)
865 164: 8e040004 lw a0,4(s0)
866 168: 8e030008 lw v1,8(s0)
867 16c: 8e02000c lw v0,12(s0)
868 170: afc50008 sw a1,8(s8)
869 174: afc4000c sw a0,12(s8)
870 178: afc30010 sw v1,16(s8)
871 17c: afc20014 sw v0,20(s8)
872 180: 27c30044 addiu v1,s8,68
873 184: 24020064 li v0,100
874 188: 00602021 move a0,v1
875 18c: 00002821 move a1,zero
876 190: 00403021 move a2,v0
877 194: 0c000000 jal 0 <leaf_call>
878 198: 00000000 nop
879 19c: 2402004c li v0,76
880 1a0: a3c20044 sb v0,68(s8)
881 1a4: 27c50038 addiu a1,s8,56
882 1a8: 27c60028 addiu a2,s8,40
883 1ac: 27c30018 addiu v1,s8,24
884 1b0: 8fc200d4 lw v0,212(s8)
885 1b4: afa20000 sw v0,0(sp)
886 1b8: 8fc400ac lw a0,172(s8)
887 1bc: 8fc700b0 lw a3,176(s8)
888 1c0: 8fc800b4 lw t0,180(s8)
889 1c4: 00604821 move t1,v1
890 1c8: 27c20008 addiu v0,s8,8
891 1cc: 00405021 move t2,v0
892 1d0: 8fcb00d0 lw t3,208(s8)
893 1d4: 0c000000 jal 0 <leaf_call>
894 1d8: 00000000 nop
895 1dc: 03c0e821 move sp,s8
896 1e0: 8fbf00cc lw ra,204(sp)
897 1e4: 8fbe00c8 lw s8,200(sp)
898 1e8: 8fb300c4 lw s3,196(sp)
899 1ec: 8fb200c0 lw s2,192(sp)
900 1f0: 8fb100bc lw s1,188(sp)
901 1f4: 8fb000b8 lw s0,184(sp)
902 1f8: 27bd00d0 addiu sp,sp,208
903 1fc: 03e00008 jr ra
904 200: 00000000 nop
905
906 00000204 <main>:
907 204: 27bdffb0 addiu sp,sp,-80
908 208: afbf004c sw ra,76(sp)
909 20c: afbe0048 sw s8,72(sp)
910 210: 03a0f021 move s8,sp
911 214: 24020002 li v0,2
912 218: afc20038 sw v0,56(s8)
913 21c: 24020003 li v0,3
914 220: afc2003c sw v0,60(s8)
915 224: 8f820000 lw v0,0(gp)
916 228: afc20040 sw v0,64(s8)
917 22c: 8f820008 lw v0,8(gp)
918 230: 8f83000c lw v1,12(gp)
919 234: afc20028 sw v0,40(s8)
920 238: afc3002c sw v1,44(s8)
921 23c: 24020006 li v0,6
922 240: 00001821 move v1,zero
923 244: afc20030 sw v0,48(s8)
924 248: afc30034 sw v1,52(s8)
925 24c: 24020009 li v0,9
926 250: afc20018 sw v0,24(s8)
927 254: 2402000a li v0,10
928 258: afc2001c sw v0,28(s8)
929 25c: 8f820010 lw v0,16(gp)
930 260: afc20020 sw v0,32(s8)
931 264: 8f820018 lw v0,24(gp)
932 268: 8f83001c lw v1,28(gp)
933 26c: afc20008 sw v0,8(s8)
934 270: afc3000c sw v1,12(s8)
935 274: 2402000d li v0,13
936 278: 00001821 move v1,zero
937 27c: afc20010 sw v0,16(s8)
938 280: afc30014 sw v1,20(s8)
939 284: 27c60038 addiu a2,s8,56
940 288: 27c70028 addiu a3,s8,40
941 28c: 27c30018 addiu v1,s8,24
942 290: 2402000e li v0,14
943 294: afa20000 sw v0,0(sp)
944 298: 2402000f li v0,15
945 29c: afa20004 sw v0,4(sp)
946 2a0: 00002021 move a0,zero
947 2a4: 24050001 li a1,1
948 2a8: 24080007 li t0,7
949 2ac: 24090008 li t1,8
950 2b0: 00605021 move t2,v1
951 2b4: 27c20008 addiu v0,s8,8
952 2b8: 00405821 move t3,v0
953 2bc: 0c000000 jal 0 <leaf_call>
954 2c0: 00000000 nop
955 2c4: 00001021 move v0,zero
956 2c8: 03c0e821 move sp,s8
957 2cc: 8fbf004c lw ra,76(sp)
958 2d0: 8fbe0048 lw s8,72(sp)
959 2d4: 27bd0050 addiu sp,sp,80
960 2d8: 03e00008 jr ra
961 2dc: 00000000 nop
962
963
964
965
966 ; ---------- returning structs by value ---------->
967 ;
968 ; struct Small { char x; };
969 ; struct Big { long long i,j,k,l; long m; }; /* bigger than 16b */
970 ;
971 ; struct Small f0()
972 ; {
973 ; struct Small s = { 132 };
974 ; return s;
975 ; }
976 ;
977 ; struct Big f1()
978 ; {
979 ; struct Big b = { 7171LL, 99LL, -99LL, -3102LL, 32 };
980 ; return b;
981 ; }
982 ;
983 ; int main()
984 ; {
985 ; struct Small s = f0();
986 ; struct Big b = f1();
987 ; return b.j + b.k + b.m + s.x;
988 ; }
989
990
991
992 ; output from psptoolchain-20111215-psp w/ gcc 4.9.3
993
994 00000000 <f0>:
995 0: 27bdfff0 addiu sp,sp,-16
996 4: afbe000c sw s8,12(sp)
997 8: 03a0f021 move s8,sp
998 c: 2402ff84 li v0,-124
999 10: a3c20000 sb v0,0(s8)
1000 14: 93c20000 lbu v0,0(s8)
1001 18: 03c0e821 move sp,s8
1002 1c: 8fbe000c lw s8,12(sp)
1003 20: 27bd0010 addiu sp,sp,16
1004 24: 03e00008 jr ra
1005 28: 00000000 nop
1006
1007 0000002c <f1>:
1008 2c: 27bdffc8 addiu sp,sp,-56
1009 30: afbf0034 sw ra,52(sp)
1010 34: afbe0030 sw s8,48(sp)
1011 38: 03a0f021 move s8,sp
1012 3c: afc40028 sw a0,40(s8)
1013 40: 3c020000 lui v0,0x0
1014 44: 03c02021 move a0,s8
1015 48: 24430000 addiu v1,v0,0
1016 4c: 24020028 li v0,40
1017 50: 00602821 move a1,v1
1018 54: 00403021 move a2,v0
1019 58: 0c000000 jal 0 <f0>
1020 5c: 00000000 nop
1021 60: 8fc20028 lw v0,40(s8)
1022 64: 00402021 move a0,v0
1023 68: 03c01821 move v1,s8
1024 6c: 24020028 li v0,40
1025 70: 00602821 move a1,v1
1026 74: 00403021 move a2,v0
1027 78: 0c000000 jal 0 <f0>
1028 7c: 00000000 nop
1029 80: 8fc20028 lw v0,40(s8)
1030 84: 03c0e821 move sp,s8
1031 88: 8fbf0034 lw ra,52(sp)
1032 8c: 8fbe0030 lw s8,48(sp)
1033 90: 27bd0038 addiu sp,sp,56
1034 94: 03e00008 jr ra
1035 98: 00000000 nop
1036
1037 0000009c <main>:
1038 9c: 27bdffc8 addiu sp,sp,-56
1039 a0: afbf0034 sw ra,52(sp)
1040 a4: afbe0030 sw s8,48(sp)
1041 a8: 03a0f021 move s8,sp
1042 ac: 0c000000 jal 0 <f0>
1043 b0: 00000000 nop
1044 b4: a3c20000 sb v0,0(s8)
1045 b8: 27c20008 addiu v0,s8,8
1046 bc: 00402021 move a0,v0
1047 c0: 0c000000 jal 0 <f0>
1048 c4: 00000000 nop
1049 c8: 8fc20010 lw v0,16(s8)
1050 cc: 8fc30014 lw v1,20(s8)
1051 d0: 00402021 move a0,v0
1052 d4: 8fc20018 lw v0,24(s8)
1053 d8: 8fc3001c lw v1,28(s8)
1054 dc: 00821021 addu v0,a0,v0
1055 e0: 8fc30028 lw v1,40(s8)
1056 e4: 00431021 addu v0,v0,v1
1057 e8: 83c30000 lb v1,0(s8)
1058 ec: 00431021 addu v0,v0,v1
1059 f0: 03c0e821 move sp,s8
1060 f4: 8fbf0034 lw ra,52(sp)
1061 f8: 8fbe0030 lw s8,48(sp)
1062 fc: 27bd0038 addiu sp,sp,56
1063 100: 03e00008 jr ra
1064 104: 00000000 nop
1065
1066
1067
1068 ; ---------- returning long long ---------->
1069 ;
1070 ; long long f()
1071 ; {
1072 ; return 7171LL;
1073 ; }
1074 ;
1075 ; int main()
1076 ; {
1077 ; return (int)f();
1078 ; }
1079
1080
1081
1082 ; output from psptoolchain-20111215-psp w/ gcc 4.9.3
1083
1084 00000000 <f>:
1085 0: 27bdfff8 addiu sp,sp,-8
1086 4: afbe0004 sw s8,4(sp)
1087 8: 03a0f021 move s8,sp
1088 c: 24021c03 li v0,7171
1089 10: 00001821 move v1,zero
1090 14: 03c0e821 move sp,s8
1091 18: 8fbe0004 lw s8,4(sp)
1092 1c: 27bd0008 addiu sp,sp,8
1093 20: 03e00008 jr ra
1094 24: 00000000 nop
1095
1096 00000028 <main>:
1097 28: 27bdfff8 addiu sp,sp,-8
1098 2c: afbf0004 sw ra,4(sp)
1099 30: afbe0000 sw s8,0(sp)
1100 34: 03a0f021 move s8,sp
1101 38: 0c000000 jal 0 <f>
1102 3c: 00000000 nop
1103 40: 03c0e821 move sp,s8
1104 44: 8fbf0004 lw ra,4(sp)
1105 48: 8fbe0000 lw s8,0(sp)
1106 4c: 27bd0008 addiu sp,sp,8
1107 50: 03e00008 jr ra
1108 54: 00000000 nop
1109
1110
1111
1112 ; ---------- passing structs with only fp parts ---------->
1113 ;
1114 ; struct A { float a; };
1115 ; struct B { float a, b; };
1116 ; struct C { float a, b, c; };
1117 ; struct D { double a; };
1118 ; struct E { double a, b; };
1119 ; struct F { double a, b, c; };
1120 ;
1121 ; void leaf_call(struct A a, struct B b, struct C c, struct D d, struct E e, struct F f)
1122 ; {
1123 ; }
1124 ;
1125 ; int main()
1126 ; {
1127 ; leaf_call((struct A){1.f}, (struct B){2.f,3.f}, (struct C){4.f,5.f,6.f}, (struct D){1.}, (struct E){2.,3.}, (struct F){4.,5.,6.});
1128 ; return 0;
1129 ; }
1130
1131
1132
1133 ; output from psptoolchain-20111215-psp w/ gcc 4.9.3
1134
1135 00000000 <leaf_call>:
1136 0: 27bdff98 addiu sp,sp,-104
1137 4: afbe0064 sw s8,100(sp)
1138 8: afb30060 sw s3,96(sp)
1139 c: afb2005c sw s2,92(sp)
1140 10: afb10058 sw s1,88(sp)
1141 14: afb00054 sw s0,84(sp)
1142 18: 03a0f021 move s8,sp
1143 1c: e7cc0040 swc1 $f12,64(s8)
1144 20: 00809821 move s3,a0
1145 24: 00a09021 move s2,a1
1146 28: afc60048 sw a2,72(s8)
1147 2c: afc7004c sw a3,76(s8)
1148 30: 01008821 move s1,t0
1149 34: 01208021 move s0,t1
1150 38: 8e630000 lw v1,0(s3)
1151 3c: 8e620004 lw v0,4(s3)
1152 40: afc30034 sw v1,52(s8)
1153 44: afc20038 sw v0,56(s8)
1154 48: 8e440000 lw a0,0(s2)
1155 4c: 8e430004 lw v1,4(s2)
1156 50: 8e420008 lw v0,8(s2)
1157 54: afc40028 sw a0,40(s8)
1158 58: afc3002c sw v1,44(s8)
1159 5c: afc20030 sw v0,48(s8)
1160 60: 8e250000 lw a1,0(s1)
1161 64: 8e240004 lw a0,4(s1)
1162 68: 8e230008 lw v1,8(s1)
1163 6c: 8e22000c lw v0,12(s1)
1164 70: afc50018 sw a1,24(s8)
1165 74: afc4001c sw a0,28(s8)
1166 78: afc30020 sw v1,32(s8)
1167 7c: afc20024 sw v0,36(s8)
1168 80: 8e070000 lw a3,0(s0)
1169 84: 8e060004 lw a2,4(s0)
1170 88: 8e050008 lw a1,8(s0)
1171 8c: 8e04000c lw a0,12(s0)
1172 90: 8e030010 lw v1,16(s0)
1173 94: 8e020014 lw v0,20(s0)
1174 98: afc70000 sw a3,0(s8)
1175 9c: afc60004 sw a2,4(s8)
1176 a0: afc50008 sw a1,8(s8)
1177 a4: afc4000c sw a0,12(s8)
1178 a8: afc30010 sw v1,16(s8)
1179 ac: afc20014 sw v0,20(s8)
1180 b0: 03c0e821 move sp,s8
1181 b4: 8fbe0064 lw s8,100(sp)
1182 b8: 8fb30060 lw s3,96(sp)
1183 bc: 8fb2005c lw s2,92(sp)
1184 c0: 8fb10058 lw s1,88(sp)
1185 c4: 8fb00054 lw s0,84(sp)
1186 c8: 27bd0068 addiu sp,sp,104
1187 cc: 03e00008 jr ra
1188 d0: 00000000 nop
1189
1190 000000d4 <main>:
1191 d4: 27bdffb0 addiu sp,sp,-80
1192 d8: afbf004c sw ra,76(sp)
1193 dc: afbe0048 sw s8,72(sp)
1194 e0: 03a0f021 move s8,sp
1195 e4: 8f820000 lw v0,0(gp)
1196 e8: afc20044 sw v0,68(s8)
1197 ec: 8f820004 lw v0,4(gp)
1198 f0: afc2003c sw v0,60(s8)
1199 f4: 8f820008 lw v0,8(gp)
1200 f8: afc20040 sw v0,64(s8)
1201 fc: 8f82000c lw v0,12(gp)
1202 100: afc20030 sw v0,48(s8)
1203 104: 8f820010 lw v0,16(gp)
1204 108: afc20034 sw v0,52(s8)
1205 10c: 8f820014 lw v0,20(gp)
1206 110: afc20038 sw v0,56(s8)
1207 114: 8f820018 lw v0,24(gp)
1208 118: 8f83001c lw v1,28(gp)
1209 11c: afc20028 sw v0,40(s8)
1210 120: afc3002c sw v1,44(s8)
1211 124: 8f820020 lw v0,32(gp)
1212 128: 8f830024 lw v1,36(gp)
1213 12c: afc20018 sw v0,24(s8)
1214 130: afc3001c sw v1,28(s8)
1215 134: 8f820028 lw v0,40(gp)
1216 138: 8f83002c lw v1,44(gp)
1217 13c: afc20020 sw v0,32(s8)
1218 140: afc30024 sw v1,36(s8)
1219 144: 8f820030 lw v0,48(gp)
1220 148: 8f830034 lw v1,52(gp)
1221 14c: afc20000 sw v0,0(s8)
1222 150: afc30004 sw v1,4(s8)
1223 154: 8f820038 lw v0,56(gp)
1224 158: 8f83003c lw v1,60(gp)
1225 15c: afc20008 sw v0,8(s8)
1226 160: afc3000c sw v1,12(s8)
1227 164: 8f820040 lw v0,64(gp)
1228 168: 8f830044 lw v1,68(gp)
1229 16c: afc20010 sw v0,16(s8)
1230 170: afc30014 sw v1,20(s8)
1231 174: 27c4003c addiu a0,s8,60
1232 178: 27c30030 addiu v1,s8,48
1233 17c: 27c20018 addiu v0,s8,24
1234 180: c7cc0044 lwc1 $f12,68(s8)
1235 184: 00602821 move a1,v1
1236 188: 8fc60028 lw a2,40(s8)
1237 18c: 8fc7002c lw a3,44(s8)
1238 190: 00404021 move t0,v0
1239 194: 03c04821 move t1,s8
1240 198: 0c000000 jal 0 <leaf_call>
1241 19c: 00000000 nop
1242 1a0: 00001021 move v0,zero
1243 1a4: 03c0e821 move sp,s8
1244 1a8: 8fbf004c lw ra,76(sp)
1245 1ac: 8fbe0048 lw s8,72(sp)
1246 1b0: 27bd0050 addiu sp,sp,80
1247 1b4: 03e00008 jr ra
1248 1b8: 00000000 nop
1249
1250
1251
1252 ; ---------- single-field structs by values (and small array fields) ---------->
1253 ;
1254 ; struct C { char c; };
1255 ; struct S { short s; };
1256 ; struct I { int i; };
1257 ; struct F { float f; };
1258 ; struct D { double d; };
1259 ;
1260 ; struct C2 { char c[2]; };
1261 ; struct C3 { char c[3]; };
1262 ;
1263 ; void leaf_call(struct C2 a, struct C b, struct S c, struct I d, struct F e, struct D f, struct C3 g)
1264 ; {
1265 ; }
1266 ;
1267 ; int main()
1268 ; {
1269 ; leaf_call((struct C2){{0,1}}, (struct C){2}, (struct S){3}, (struct I){4}, (struct F){5.f}, (struct D){6.}, (struct C3){{7,8,9}});
1270 ; return 0;
1271 ; }
1272
1273
1274
1275 ; output from psptoolchain-20111215-psp w/ gcc 4.9.3
1276
1277 00000000 <leaf_call>:
1278 0: 27bdffd8 addiu sp,sp,-40
1279 4: afbe0024 sw s8,36(sp)
1280 8: 03a0f021 move s8,sp
1281 c: a7c40000 sh a0,0(s8)
1282 10: a3c50004 sb a1,4(s8)
1283 14: a7c60008 sh a2,8(s8)
1284 18: afc7000c sw a3,12(s8)
1285 1c: e7cc0010 swc1 $f12,16(s8)
1286 20: afc80018 sw t0,24(s8)
1287 24: afc9001c sw t1,28(s8)
1288 28: afca0014 sw t2,20(s8)
1289 2c: 03c0e821 move sp,s8
1290 30: 8fbe0024 lw s8,36(sp)
1291 34: 27bd0028 addiu sp,sp,40
1292 38: 03e00008 jr ra
1293 3c: 00000000 nop
1294
1295 00000040 <main>:
1296 40: 27bdffd0 addiu sp,sp,-48
1297 44: afbf002c sw ra,44(sp)
1298 48: afbe0028 sw s8,40(sp)
1299 4c: 03a0f021 move s8,sp
1300 50: a3c00020 sb zero,32(s8)
1301 54: 24020001 li v0,1
1302 58: a3c20021 sb v0,33(s8)
1303 5c: 24020002 li v0,2
1304 60: a3c2001c sb v0,28(s8)
1305 64: 24020003 li v0,3
1306 68: a7c20018 sh v0,24(s8)
1307 6c: 24020004 li v0,4
1308 70: afc20014 sw v0,20(s8)
1309 74: 8f820000 lw v0,0(gp)
1310 78: afc20010 sw v0,16(s8)
1311 7c: 8f820008 lw v0,8(gp)
1312 80: 8f83000c lw v1,12(gp)
1313 84: afc20008 sw v0,8(s8)
1314 88: afc3000c sw v1,12(s8)
1315 8c: 24020007 li v0,7
1316 90: a3c20000 sb v0,0(s8)
1317 94: 24020008 li v0,8
1318 98: a3c20001 sb v0,1(s8)
1319 9c: 24020009 li v0,9
1320 a0: a3c20002 sb v0,2(s8)
1321 a4: 8fc40020 lw a0,32(s8)
1322 a8: 93c5001c lbu a1,28(s8)
1323 ac: 97c60018 lhu a2,24(s8)
1324 b0: 8fc70014 lw a3,20(s8)
1325 b4: c7cc0010 lwc1 $f12,16(s8)
1326 b8: 8fc80008 lw t0,8(s8)
1327 bc: 8fc9000c lw t1,12(s8)
1328 c0: 8fca0000 lw t2,0(s8)
1329 c4: 0c000000 jal 0 <leaf_call>
1330 c8: 00000000 nop
1331 cc: 00001021 move v0,zero
1332 d0: 03c0e821 move sp,s8
1333 d4: 8fbf002c lw ra,44(sp)
1334 d8: 8fbe0028 lw s8,40(sp)
1335 dc: 27bd0030 addiu sp,sp,48
1336 e0: 03e00008 jr ra
1337 e4: 00000000 nop
1338
1339
1340
1341 ; ---------- C++ trivial and non-trivial aggrs passed to C funcs ---------->
1342 ;
1343 ; struct Trivial { int a; };
1344 ; struct NonTrivial { int a; NonTrivial() : a(0) {} NonTrivial(const NonTrivial& rhs) : a(rhs.a) { } };
1345 ;
1346 ; extern "C" {
1347 ;
1348 ; void f1(struct Trivial s) { }
1349 ; void f2(struct NonTrivial s) { }
1350 ;
1351 ; void f()
1352 ; {
1353 ; struct Trivial t;
1354 ; struct NonTrivial n;
1355 ; int a=1;
1356 ; a += 123;
1357 ; f1(t);
1358 ; a -= 123;
1359 ; f2(n);
1360 ; a -= 12;
1361 ; }
1362 ; }
1363
1364
1365
1366 ; output from psptoolchain-20111215-psp w/ gcc 4.9.3
1367
1368 00000000 <f1>:
1369 0: 27bdfff0 addiu sp,sp,-16
1370 4: afbe000c sw s8,12(sp)
1371 8: 03a0f021 move s8,sp
1372 c: afc40000 sw a0,0(s8)
1373 10: 03c0e821 move sp,s8
1374 14: 8fbe000c lw s8,12(sp)
1375 18: 27bd0010 addiu sp,sp,16
1376 1c: 03e00008 jr ra
1377 20: 00000000 nop
1378
1379 00000024 <f2>:
1380 24: 27bdfff0 addiu sp,sp,-16
1381 28: afbe000c sw s8,12(sp)
1382 2c: 03a0f021 move s8,sp
1383 30: afc40000 sw a0,0(s8)
1384 34: 03c0e821 move sp,s8
1385 38: 8fbe000c lw s8,12(sp)
1386 3c: 27bd0010 addiu sp,sp,16
1387 40: 03e00008 jr ra
1388 44: 00000000 nop
1389
1390 00000048 <f>:
1391 48: 27bdffe8 addiu sp,sp,-24 ;
1392 4c: afbf0014 sw ra,20(sp) ;
1393 50: afbe0010 sw s8,16(sp) ;
1394 54: 03a0f021 move s8,sp ;
1395 58: 27c2000c addiu v0,s8,12 ;
1396 5c: 00402021 move a0,v0 ; |
1397 60: 0c000000 jal 0 <f1> ; | NonTrivial::NonTrivial() / ctor
1398 64: 00000000 nop ;
1399 68: 24020001 li v0,1 ; a = 1
1400 6c: afc20000 sw v0,0(s8) ;
1401 70: 8fc20000 lw v0,0(s8) ;
1402 74: 2442007b addiu v0,v0,123 ; a += 123
1403 78: afc20000 sw v0,0(s8) ;
1404 7c: 8fc40008 lw a0,8(s8) ; |
1405 80: 0c000000 jal 0 <f1> ; | call f1(struct Trivial)
1406 84: 00000000 nop ;
1407 88: 8fc20000 lw v0,0(s8) ;
1408 8c: 2442ff85 addiu v0,v0,-123 ; a -= 123
1409 90: afc20000 sw v0,0(s8) ;
1410 94: 27c30004 addiu v1,s8,4 ;
1411 98: 27c2000c addiu v0,s8,12 ;
1412 9c: 00602021 move a0,v1 ; | ptr to dest of copy of n
1413 a0: 00402821 move a1,v0 ; | copy n ptr to n
1414 a4: 0c000000 jal 0 <f1> ; | | NonTrivial::NonTrivial(const NonTrivial&) / copy ctor
1415 a8: 00000000 nop ;
1416 ac: 27c20004 addiu v0,s8,4 ; get ptr to copy of n -> v0
1417 b0: 00402021 move a0,v0 ; f2 arg 0 (ptr to copy of struct NonTrivial), via ptr as non-trivial
1418 b4: 0c000000 jal 0 <f1> ; call f2(struct NonTrivial)
1419 b8: 00000000 nop ;
1420 bc: 8fc20000 lw v0,0(s8) ;
1421 c0: 2442fff4 addiu v0,v0,-12 ; a -= 12
1422 c4: afc20000 sw v0,0(s8) ;
1423 c8: 03c0e821 move sp,s8 ;
1424 cc: 8fbf0014 lw ra,20(sp) ;
1425 d0: 8fbe0010 lw s8,16(sp) ;
1426 d4: 27bd0018 addiu sp,sp,24 ;
1427 d8: 03e00008 jr ra ;
1428 dc: 00000000 nop ;
1429
1430 ; ... snip, removed code of ctor and copy ctor ...
1431
1432
1433
1434 ; ---------- C++ trivial and non-trivial aggrs as return values ---------->
1435 ;
1436 ; struct Trivial { int a; };
1437 ; struct NonTrivial { int a; NonTrivial() : a(0) {} NonTrivial(const NonTrivial& rhs) : a(rhs.a) { } };
1438 ;
1439 ; extern "C" {
1440 ; struct Trivial f1() { return Trivial(); }
1441 ; }
1442 ;
1443 ; struct NonTrivial f2() { return NonTrivial(); }
1444 ;
1445 ; extern "C" {
1446 ; void f()
1447 ; {
1448 ; int a=1;
1449 ; a += 123;
1450 ; struct Trivial t = f1();
1451 ; a -= 123;
1452 ; struct NonTrivial n = f2();
1453 ; a -= 12;
1454 ; }
1455 ; }
1456
1457
1458
1459 ; output from psptoolchain-20111215-psp w/ gcc 4.9.3
1460
1461 00000000 <f1>:
1462 0: 27bdfff8 addiu sp,sp,-8
1463 4: afbe0004 sw s8,4(sp)
1464 8: 03a0f021 move s8,sp
1465 c: 00001021 move v0,zero
1466 10: 03c0e821 move sp,s8
1467 14: 8fbe0004 lw s8,4(sp)
1468 18: 27bd0008 addiu sp,sp,8
1469 1c: 03e00008 jr ra
1470 20: 00000000 nop
1471
1472 00000024 <_Z2f2v>:
1473 24: 27bdfff0 addiu sp,sp,-16 ;
1474 28: afbf000c sw ra,12(sp) ;
1475 2c: afbe0008 sw s8,8(sp) ;
1476 30: 03a0f021 move s8,sp ;
1477 34: afc40000 sw a0,0(s8) ;
1478 38: 8fc40000 lw a0,0(s8) ;
1479 3c: 0c000000 jal 0 <f1> ;
1480 40: 00000000 nop ;
1481 44: 8fc20000 lw v0,0(s8) ; retval, return (hidden) passed-in ptr to space for retval
1482 48: 03c0e821 move sp,s8 ;
1483 4c: 8fbf000c lw ra,12(sp) ;
1484 50: 8fbe0008 lw s8,8(sp) ;
1485 54: 27bd0010 addiu sp,sp,16 ;
1486 58: 03e00008 jr ra ;
1487 5c: 00000000 nop ;
1488
1489 00000060 <f>:
1490 60: 27bdffe8 addiu sp,sp,-24 ;
1491 64: afbf0014 sw ra,20(sp) ;
1492 68: afbe0010 sw s8,16(sp) ;
1493 6c: 03a0f021 move s8,sp ;
1494 70: 24020001 li v0,1 ; a = 1
1495 74: afc20000 sw v0,0(s8) ;
1496 78: 8fc20000 lw v0,0(s8) ;
1497 7c: 2442007b addiu v0,v0,123 ; a += 123
1498 80: afc20000 sw v0,0(s8) ;
1499 84: 0c000000 jal 0 <f1> ; call f1(), struct returned via as trivial and <= 64bit
1500 88: 00000000 nop ;
1501 8c: afc20004 sw v0,4(s8) ;
1502 90: 8fc20000 lw v0,0(s8) ;
1503 94: 2442ff85 addiu v0,v0,-123 ; a -= 123
1504 98: afc20000 sw v0,0(s8) ;
1505 9c: 27c20008 addiu v0,s8,8 ;
1506 a0: 00402021 move a0,v0 ; hidden first arg (ptr to space for ret val)
1507 a4: 0c000000 jal 0 <f1> ; call f2(), result returned indirectly as struct nontrivial
1508 a8: 00000000 nop ;
1509 ac: 8fc20000 lw v0,0(s8) ;
1510 b0: 2442fff4 addiu v0,v0,-12 ; a -= 12
1511 b4: afc20000 sw v0,0(s8) ;
1512 b8: 03c0e821 move sp,s8 ;
1513 bc: 8fbf0014 lw ra,20(sp) ;
1514 c0: 8fbe0010 lw s8,16(sp) ;
1515 c4: 27bd0018 addiu sp,sp,24 ;
1516 c8: 03e00008 jr ra ;
1517 cc: 00000000 nop ;
1518
1519 ; ... snip, removed code of ctor ...
1520
1521
1522
612 ; vim: ft=asm 1523 ; vim: ft=asm
613 1524