diff options
-rw-r--r-- | src/kernel/main.c | 16 | ||||
-rw-r--r-- | src/kernel/misc.c | 46 | ||||
-rw-r--r-- | src/kernel/misc.h | 27 |
3 files changed, 89 insertions, 0 deletions
diff --git a/src/kernel/main.c b/src/kernel/main.c index d5f463c..54b0a83 100644 --- a/src/kernel/main.c +++ b/src/kernel/main.c @@ -21,6 +21,7 @@ OF THIS SOFTWARE. #include "files.h" #include "mem.h" #include "proc.h" +#include "misc.h" void main(void) { *(uint32_t *)0x0000050c = (uint32_t)allocate_pages(16 * sizeof(struct file_handle_info), 2); @@ -31,6 +32,21 @@ void main(void) { for (struct proc_info *i = FILE_HANDLES, *l = FILE_HANDLES + 65536; i < l; ++i) i->memory_start = 0; + uint16_t pages_free = 0, pages_total = 0; + for (uint16_t *i = MMAP; i < MMAP + 0x1000; ++i) + switch (*i) { + case 1: + continue; + case 0: + ++pages_free; + default: + ++pages_total; + } + put_16(pages_free); + put_sz(" of "); + put_16(pages_total); + put_sz(" pages free.\n"); + put_sz("Welcome to Portland version 0.0.8!\n"); while (1) put_sz("|\b/\b-\b\\\b"); diff --git a/src/kernel/misc.c b/src/kernel/misc.c new file mode 100644 index 0000000..d002345 --- /dev/null +++ b/src/kernel/misc.c @@ -0,0 +1,46 @@ +/* +Copyright 2019 Benji Dial + +Permission to use, copy, modify, and/or distribute this +software for any purpose with or without fee is hereby +granted, provided that the above copyright notice and this +permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS +ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO +EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, +INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE +OF THIS SOFTWARE. +*/ + +#include "misc.h" +#include "vga.h" +#include <stdbool.h> + +void put_16(uint16_t n) { + bool s = false; + if (n / 10000) { + put_char((uint8_t)'0' + n / 10000); + s = true; + } + n %= 10000; + if (n / 1000 || s) { + put_char((uint8_t)'0' + n / 1000); + s = true; + } + n %= 1000; + if (n / 100 || s) { + put_char((uint8_t)'0' + n / 100); + s = true; + } + n %= 100; + if (n / 10 || s) { + put_char((uint8_t)'0' + n / 10); + s = true; + } + put_char((uint8_t)'0' + n % 10); +}
\ No newline at end of file diff --git a/src/kernel/misc.h b/src/kernel/misc.h new file mode 100644 index 0000000..c68bccc --- /dev/null +++ b/src/kernel/misc.h @@ -0,0 +1,27 @@ +/* +Copyright 2019 Benji Dial + +Permission to use, copy, modify, and/or distribute this +software for any purpose with or without fee is hereby +granted, provided that the above copyright notice and this +permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS +ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO +EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, +INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE +OF THIS SOFTWARE. +*/ + +#include <stdint.h> + +#ifndef MISC_H +#define MISC_H + +void print_32(uint32_t n); + +#endif
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