diff options
Diffstat (limited to 'apps/test.c')
| -rw-r--r-- | apps/test.c | 46 |
1 files changed, 2 insertions, 44 deletions
diff --git a/apps/test.c b/apps/test.c index c5e6468..ad84996 100644 --- a/apps/test.c +++ b/apps/test.c @@ -1,3 +1,5 @@ +// MIT License, Copyright (c) 2020 Marvin Borner + #include <def.h> u32 strlen(const char *s) @@ -15,54 +17,11 @@ u8 inb(u16 port) return value; } -u16 inw(u16 port) -{ - u16 value; - __asm__ volatile("inw %1, %0" : "=a"(value) : "Nd"(port)); - return value; -} - -u32 inl(u16 port) -{ - u32 value; - __asm__ volatile("inl %1, %0" : "=a"(value) : "Nd"(port)); - return value; -} - -void insl(u16 port, void *addr, int n) -{ - __asm__ volatile("cld; rep insl" - : "=D"(addr), "=c"(n) - : "d"(port), "0"(addr), "1"(n) - : "memory", "cc"); -} - void outb(u16 port, u8 data) { __asm__ volatile("outb %0, %1" ::"a"(data), "Nd"(port)); } -void outw(u16 port, u16 data) -{ - __asm__ volatile("outw %0, %1" ::"a"(data), "Nd"(port)); -} - -void outl(u16 port, u32 data) -{ - __asm__ volatile("outl %0, %1" ::"a"(data), "Nd"(port)); -} - -void serial_install() -{ - outb(0x3f8 + 1, 0x00); - outb(0x3f8 + 3, 0x80); - outb(0x3f8 + 0, 0x03); - outb(0x3f8 + 1, 0x00); - outb(0x3f8 + 3, 0x03); - outb(0x3f8 + 2, 0xC7); - outb(0x3f8 + 4, 0x0B); -} - int is_transmit_empty() { return inb(0x3f8 + 5) & 0x20; @@ -83,6 +42,5 @@ void serial_print(const char *data) void main() { - serial_install(); serial_print("Follow the white rabbit."); } |