From 2ddbeb9f7214f6d3feef651eba83e6a9d120a743 Mon Sep 17 00:00:00 2001
From: Benji Dial <Benji3.141@gmail.com>
Date: Thu, 13 Aug 2020 17:58:50 -0400
Subject: lots of progress, including readonly PATA driver and part of FAT16
 driver

---
 src/kernel/util.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

(limited to 'src/kernel/util.h')

diff --git a/src/kernel/util.h b/src/kernel/util.h
index 243541c..324f379 100644
--- a/src/kernel/util.h
+++ b/src/kernel/util.h
@@ -10,8 +10,8 @@ static inline void outb(uint16_t port, uint8_t value) {
   : : "a"(value), "Nd"(port));
 }
 static inline uint8_t inb(uint16_t port) {
-  uint8_t value;
-  asm volatile (
+  volatile uint8_t value;
+  asm (
     "inb %1, %0"
   : "=a"(value) : "Nd"(port));
   return value;
@@ -22,8 +22,8 @@ static inline void outw(uint16_t port, uint16_t value) {
   : : "a"(value), "Nd"(port));
 }
 static inline uint16_t inw(uint16_t port) {
-  uint16_t value;
-  asm volatile (
+  volatile uint16_t value;
+  asm (
     "inw %1, %0"
   : "=a"(value) : "Nd"(port));
   return value;
@@ -34,15 +34,15 @@ static inline void outd(uint16_t port, uint32_t value) {
   : : "a"(value), "Nd"(port));
 }
 static inline uint32_t ind(uint16_t port) {
-  uint32_t value;
-  asm volatile (
+  volatile uint32_t value;
+  asm (
     "inl %1, %0"
   : "=a"(value) : "Nd"(port));
   return value;
 }
 
-void memcpy(void *to, void *from, uint32_t n);
-void fmcpy(void *to, struct drive *d, drive_file_id_t f, uint32_t from, uint32_t n);
+void memcpy(void *to, const void *from, uint32_t n);
+void fmcpy(void *to, const struct drive *d, drive_file_id_t f, uint32_t from, uint32_t n);
 
 void u32_dec(uint32_t n, char *b);
 void u16_dec(uint16_t n, char *b);
-- 
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