diff options
Diffstat (limited to 'core/writehex.c')
-rw-r--r-- | core/writehex.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/core/writehex.c b/core/writehex.c new file mode 100644 index 00000000..fde27037 --- /dev/null +++ b/core/writehex.c @@ -0,0 +1,70 @@ +/* ----------------------------------------------------------------------- + * + * Copyright 1994-2008 H. Peter Anvin - All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, Inc., 53 Temple Place Ste 330, + * Boston MA 02111-1307, USA; either version 2 of the License, or + * (at your option) any later version; incorporated herein by reference. + * + * ----------------------------------------------------------------------- + */ +#include <core.h> + +/* + * writehex.c + * + * Write hexadecimal numbers to the console + * + */ + +static inline void __writehex(uint32_t h, int digits) +{ + while (digits) { + uint8_t shift; + uint8_t al; + + shift = --digits; + al = ((h & 0x0f << shift) >> shift); + if (al < 10) + al += '0'; + else + al += 'A' - 10; + + writechr(al); + } +} + +/* + * writehex[248]: Write a hex number in (AL, AX, EAX) to the console + */ +void writehex2(uint32_t h) +{ + __writehex(h, 2); +} + +void writehex4(uint8_t h) +{ + __writehex(h, 4); +} + +void writehex8(uint8_t h) +{ + __writehex(h, 8); +} + +void pm_writehex2(com32sys_t *regs) +{ + writehex2(regs->eax.b[0]); +} + +void pm_writehex4(com32sys_t *regs) +{ + writehex4(regs->eax.w[0]); +} + +void pm_writehex8(com32sys_t *regs) +{ + writehex8(regs->eax.l); +} |