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| author | Jérémy Zurcher <jeremy@asynk.ch> | 2015-11-04 13:41:10 +0100 |
|---|---|---|
| committer | Jérémy Zurcher <jeremy@asynk.ch> | 2015-11-04 13:41:10 +0100 |
| commit | 7a07b4a4398e02aead731b0c38af143d6a2fe41a (patch) | |
| tree | cd9ec8490531dfa26e05325f807fb0e8c8e06c24 /kernel/kernel.c | |
| parent | 71e63d03f95d559c709911844ef1fc9907c74f49 (diff) | |
| download | jeyzuos-7a07b4a4398e02aead731b0c38af143d6a2fe41a.zip jeyzuos-7a07b4a4398e02aead731b0c38af143d6a2fe41a.tar.gz | |
add io_ports
Diffstat (limited to 'kernel/kernel.c')
| -rw-r--r-- | kernel/kernel.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/kernel/kernel.c b/kernel/kernel.c index d81c8a7..6b7f077 100644 --- a/kernel/kernel.c +++ b/kernel/kernel.c @@ -1,5 +1,6 @@ #include "tty.h" #include "stdlib.h" +#include "io_ports.h" /* this only work for the 32-bit ix86 targets. */ #if !defined(__i386__) @@ -34,5 +35,22 @@ void kernel_main() test(strncmp("abc", "abc", 8) == 0); test(strncmp("abca", "abcb", 3) == 0); + + tty_puts("inw : "); + while(true) { + int ret = inw(0x03F8); + if (ret == 97) { + tty_puts(" ok\n"); + break; + } + } + tty_puts("outw :\n"); + outw(0x03F8, 'h'); + outw(0x03F8, 'e'); + outw(0x03F8, 'l'); + outw(0x03F8, 'l'); + outw(0x03F8, 'o'); + outw(0x03F8, '\0'); + tty_puts("done.\n"); } |