X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=ROM2%2Fhelpers.c;h=424f81c31b0011c27afcc0d935540b4be04e0419;hb=77e73f29dba77e76df09c5b93f61a446e1fd8714;hp=ad52123b97a39a1eed528036a861948c5344c75a;hpb=f5bc521c83d95d35e852747402a44d1411252c2b;p=uccvend-snackrom.git diff --git a/ROM2/helpers.c b/ROM2/helpers.c index ad52123..424f81c 100644 --- a/ROM2/helpers.c +++ b/ROM2/helpers.c @@ -13,8 +13,6 @@ void delay(u16 ms) { asm volatile ("ldx %0\n" :: "m" (ms) : "x"); asm volatile ( "delay_loop:\n" - " dex\n" /* 3 */ - " beq delay_out\n" /* 3 */ //" ldd #327\n" /* 3 */ " ldd #150\n" /* 3 */ "delay_inner_loop:\n" /* 15 cycles each */ @@ -23,6 +21,8 @@ void delay(u16 ms) { " subd #0x0001\n" /* 4 */ " bra delay_inner_loop\n" /* 3 */ "delay_inner_loop_end:\n" + " dex\n" /* 3 */ + " beq delay_out\n" /* 3 */ " bra delay_loop\n" /* 3 */ "delay_out:\n" ::: "x", "d"); /*" pulb\n" @@ -50,3 +50,8 @@ void my_memcpy(char* dst, char* src, u8 size) { u8 i = 0; for (i = 0; i < size; i++) dst[i] = src[i]; } + +void my_memset(char* dst, u8 val, u16 count) { + char* c; + for (c = dst; c < dst+count; c++) *c = val; +}