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Make C example more C, less asm

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This commit is contained in:
alpine9000
2016-03-16 20:59:49 +11:00
parent a56195292b
commit 995d9a5999
1 changed files with 6 additions and 3 deletions
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021.calling_c/c_code.c
+6 -3
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@@ -1,6 +1,9 @@
typedef union {
unsigned char* ptr;
unsigned short word[2];
struct {
unsigned short hi;
unsigned short lo;
} words;
} word_extract_t;
void
@@ -12,8 +15,8 @@ PokeBitplanePointers(unsigned short* copper, unsigned char* bitplanes, unsigned
for (i = 0; i < numBitplanes; i++) {
word_extract_t extract;
extract.ptr = bitplanes;
*(copper+1) = extract.word[1];
*(copper+3) = extract.word[0];
*(copper+1) = extract.words.lo;
*(copper+3) = extract.words.hi;
bitplanes += screenWidthBytes;
copper += 4;
}