Patrick Georgi (patrick@georgi-clan.de) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1560
-gerrit
commit 508fd0158780293264c0ad879b6b34d3c6cd686f Author: Patrick Georgi patrick@georgi-clan.de Date: Fri Aug 17 15:57:36 2012 +0200
Provide access to smaller registers in eregs
This is in preparation for sharing interrupt handlers between YABEL and x86emu.
Change-Id: Iff92c1d899b8ada20972731944341805a49b6326 Signed-off-by: Patrick Georgi patrick@georgi-clan.de --- src/arch/x86/include/arch/registers.h | 35 ++++++++++++++++++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-)
diff --git a/src/arch/x86/include/arch/registers.h b/src/arch/x86/include/arch/registers.h index bc1b681..d120a2a 100644 --- a/src/arch/x86/include/arch/registers.h +++ b/src/arch/x86/include/arch/registers.h @@ -20,8 +20,41 @@ #ifndef __ARCH_REGISTERS_H #define __ARCH_REGISTERS_H
+#define __PACKED __attribute__((packed)) + +#define DOWNTO8(A) \ + union { \ + struct { \ + union { \ + struct { \ + uint8_t A##l; \ + uint8_t A##h; \ + } __PACKED; \ + uint16_t A##x; \ + } __PACKED; \ + uint16_t h##A##x; \ + } __PACKED; \ + uint32_t e##A##x; \ + } __PACKED; + +#define DOWNTO16(A) \ + union { \ + struct { \ + uint16_t A; \ + uint16_t h##A; \ + } __PACKED; \ + uint32_t e##A; \ + } __PACKED; + struct eregs { - uint32_t eax, ecx, edx, ebx, esp, ebp, esi, edi; + DOWNTO8(a); + DOWNTO8(c); + DOWNTO8(d); + DOWNTO8(b); + DOWNTO16(sp); + DOWNTO16(bp); + DOWNTO16(si); + DOWNTO16(di); uint32_t vector; uint32_t error_code; uint32_t eip;