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Added comments documenting the vram to vram copy function.

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FlightControl 2021-01-07 19:56:41 +01:00
parent ea09a0383c
commit 218eb1a9db
1 changed files with 10 additions and 0 deletions
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src/main/kc/include/cx16.h
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@ -62,6 +62,16 @@ char vpeek(char vbank, char* vaddr);
// - num: The number of bytes to copy // - num: The number of bytes to copy
void memcpy_to_vram(char vbank, void* vdest, void* src, unsigned int num ); void memcpy_to_vram(char vbank, void* vdest, void* src, unsigned int num );
// Copy block of memory from VRAM to VRAM
// Copies the values from the location pointed by vget to the location pointed by vput.
// The method uses the VERA access ports 0 and 1 to copy data from and to in VRAM.
// - num: How much bytes to be copied.
// - bget: 64K VRAM bank number to copy from (0/1).
// - vget: pointer to the location to copy from. Note that the address is a 16 bit value!
// - iget: the increment indicator, VERA needs this because addressing increment is automated by VERA at each access.
// - bput: 64K VRAM bank number to copy to (0/1).
// - vput: pointer to the location to copy to. Note that the address is a 16 bit value!
// - iput: the increment indicator, VERA needs this because addressing increment is automated by VERA at each access.
void vram_to_vram(unsigned int num, char bget, void *vget, char iget, char bput, void *vput, char iput ); void vram_to_vram(unsigned int num, char bget, void *vget, char iget, char bput, void *vput, char iput );
// Color Ram // Color Ram