From 5768e8059dc3b7f56361fe5b5c578294df3fdf67 Mon Sep 17 00:00:00 2001 From: Christian Cunningham Date: Mon, 20 Dec 2021 19:57:18 -0800 Subject: Implemented memory functions --- src/lib/mem.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 src/lib/mem.c (limited to 'src/lib/mem.c') diff --git a/src/lib/mem.c b/src/lib/mem.c new file mode 100644 index 0000000..cf1c980 --- /dev/null +++ b/src/lib/mem.c @@ -0,0 +1,38 @@ +#include "../drivers/uart.a.h" + +void memshow32(unsigned long* addr, unsigned int n) { + for(unsigned int i = 0; i < n; i++) { + uart_hex(addr[i]); + if (i+1 != n) + uart_char(0x20); + } + uart_char(0x0a); +} + +void memcpy(unsigned char* src, unsigned char* dest, unsigned int n) { + for(unsigned int i = 0; i < n; i++) { + dest[i] = src[i]; + } +} + +unsigned char memcmp(unsigned char* a, unsigned char* b, unsigned int n) { + for(unsigned int i = 0; i < n; i++) { + if (a[i] != b[i]) + return 0; + } + return 1; +} + +void memcpy32(unsigned long* src, unsigned long* dest, unsigned int n) { + for(unsigned int i = 0; i < n; i++) { + dest[i] = src[i]; + } +} + +unsigned char memcmp32(unsigned long* a, unsigned long* b, unsigned int n) { + for(unsigned int i = 0; i < n; i++) { + if (a[i] != b[i]) + return 0; + } + return 1; +} -- cgit v1.2.1