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comparison code_part1/OSTC_code_asm_part1/math.asm @ 577:e3ffc6d62a63

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minor clean
author heinrichsweikamp
date Sun, 22 Apr 2012 21:32:04 +0200
parents 44e9b961f156
children c50296c3059e
comparison
equal deleted inserted replaced
576:ab2686087bce 577:e3ffc6d62a63
40 bcf STATUS,C 40 bcf STATUS,C
41 rrcf divA+1 41 rrcf divA+1
42 rrcf divA 42 rrcf divA
43 decfsz divB 43 decfsz divB
44 bra div16 44 bra div16
45 return
46
47 sub32: ;xC:4=xC:4-sub_c:4 (Warning: sub_c+3 trashes sub_a+0!)
48 movf sub_c+0, W
49 subwf xC+0, F
50
51 movf sub_c+1, W
52 BTFSS STATUS, C
53 incfsz sub_c+1, W
54 subwf xC+1, F
55
56 movf sub_c+2, W
57 BTFSS STATUS, C
58 incfsz sub_c+2, W
59 subwf xC+2, F
60
61 movf sub_c+3, W
62 BTFSS STATUS, C
63 incfsz sub_c+3, W
64 subwf xC+3, F
65 return 45 return
66 46
67 sub16: ; sub_c = sub_a - sub_b (with signed values) 47 sub16: ; sub_c = sub_a - sub_b (with signed values)
68 bcf neg_flag 48 bcf neg_flag
69 movf sub_b+0, W ; Get Value to be subtracted 49 movf sub_b+0, W ; Get Value to be subtracted