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author | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
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committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/openbios/arch/x86/lib.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/openbios/arch/x86/lib.c')
-rw-r--r-- | roms/openbios/arch/x86/lib.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/roms/openbios/arch/x86/lib.c b/roms/openbios/arch/x86/lib.c new file mode 100644 index 000000000..eeb901b4a --- /dev/null +++ b/roms/openbios/arch/x86/lib.c @@ -0,0 +1,56 @@ +/* lib.c + * tag: simple function library + * + * Copyright (C) 2003 Stefan Reinauer + * + * See the file "COPYING" for further information about + * the copyright and warranty status of this work. + */ + +#include "config.h" +#include "asm/types.h" +#include <stdarg.h> +#include "libc/stdlib.h" +#include "libc/vsprintf.h" +#include "kernel/kernel.h" + +/* Format a string and print it on the screen, just like the libc + * function printf. + */ +int printk( const char *fmt, ... ) +{ + char *p, buf[512]; + va_list args; + int i; + + va_start(args, fmt); + i = vsnprintf(buf, sizeof(buf), fmt, args); + va_end(args); + + for( p=buf; *p; p++ ) + putchar(*p); + return i; +} + +// dumb quick memory allocator until we get a decent thing here. + +#define MEMSIZE 128*1024 +static char memory[MEMSIZE]; +static void *memptr=memory; +static int memsize=MEMSIZE; + +void *malloc(int size) +{ + void *ret=(void *)0; + if(memsize>=size) { + memsize-=size; + ret=memptr; + memptr = (void *)((unsigned long)memptr + size); + } + return ret; +} + +void free(void *ptr) +{ + /* Nothing yet */ +} |