diff options
| author | Thomas Schwinge <tschwinge@gnu.org> | 2006-02-20 20:55:18 +0000 |
|---|---|---|
| committer | Thomas Schwinge <tschwinge@gnu.org> | 2009-06-18 00:26:35 +0200 |
| commit | b3d4954f3269685d4200149e7334cdcdc935c287 (patch) | |
| tree | 9d963cdfa4c74632d455d9126f27672322059824 /i386/pc/i16/i16_raw_test_a20.S | |
| parent | 0266d331d780ff0e595eda337a3501ffbfea9330 (diff) | |
2006-02-20 Thomas Schwinge <tschwinge@gnu.org>
Remove unused and unsupported code. Consult the file
`DEVELOPMENT' for details. Partly based on suggestions by
Gianluca Guida <glguida@gmail.com>.
* i386/pc/NOTES: Remove file.
* i386/pc/debug.h: Likewise.
* i386/pc/exit.c: Likewise.
* i386/pc/gdt.h: Likewise.
* i386/pc/gdt_sels.h: Likewise.
* i386/pc/i16/i16_a20.c: Likewise.
* i386/pc/i16/i16_a20.h: Likewise.
* i386/pc/i16/i16_bios.h: Likewise.
* i386/pc/i16/i16_exit.c: Likewise.
* i386/pc/i16/i16_ext_mem.c: Likewise.
* i386/pc/i16/i16_init.c: Likewise.
* i386/pc/i16/i16_main.c: Likewise.
* i386/pc/i16/i16_pic.c: Likewise.
* i386/pc/i16/i16_putchar.c: Likewise.
* i386/pc/i16/i16_raw.c: Likewise.
* i386/pc/i16/i16_raw_test_a20.S: Likewise.
* i386/pc/i16/i16_real_int.S: Likewise.
* i386/pc/i16/i16_switch.h: Likewise.
* i386/pc/i16/phys_mem_collect.c: Likewise.
* i386/pc/i16/phys_mem_sources.h: Likewise.
* i386/pc/i16/raw_exit.c: Likewise.
* i386/pc/i16/raw_real_int.c: Likewise.
* i386/pc/ipl.h: Likewise.
* i386/pc/irq.h: Likewise.
* i386/pc/irq_list.h: Likewise.
* i386/pc/pc_asm.sym: Likewise.
* i386/pc/phys_mem.h: Likewise.
* i386/pc/phys_mem_add.c: Likewise.
* i386/pc/pic.c: Likewise.
* i386/pc/pic.h: Likewise.
* i386/pc/putchar.c: Likewise.
* i386/pc/real.h: Likewise.
* i386/pc/real_tss.c: Likewise.
* i386/pc/real_tss.h: Likewise.
* i386/pc/real_tss_def.S: Likewise.
* i386/pc/rv86/config.h: Likewise.
* i386/pc/rv86/gdt_sels.h: Likewise.
* i386/pc/rv86/idt_irq_init.c: Likewise.
* i386/pc/rv86/rv86_real_int.c: Likewise.
* i386/pc/rv86/rv86_real_int_asm.S: Likewise.
* i386/pc/rv86/rv86_reflect_irq.S: Likewise.
* i386/pc/rv86/rv86_trap_handler.S: Likewise.
* i386/pc/rv86/trap_handler.S: Likewise.
Diffstat (limited to 'i386/pc/i16/i16_raw_test_a20.S')
| -rw-r--r-- | i386/pc/i16/i16_raw_test_a20.S | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/i386/pc/i16/i16_raw_test_a20.S b/i386/pc/i16/i16_raw_test_a20.S deleted file mode 100644 index a934e12..0000000 --- a/i386/pc/i16/i16_raw_test_a20.S +++ /dev/null @@ -1,35 +0,0 @@ - -#include <mach/machine/asm.h> - - .text - .code16 - -/* - * Test the A20 address line; return true if it is enabled. - */ -ENTRY(i16_raw_test_a20) - xorw %ax,%ax - movw %ax,%fs - notw %ax - movw %ax,%gs - - /* See if the values in already in the corresponding locations - are the same. */ - movw %fs:0,%ax - cmpw %gs:16,%ax - jnz 1f - - /* Yes; try changing one and see if they're still the same. */ - movw %ax,%dx - notw %ax - movw %ax,%fs:0 - cmpw %gs:16,%ax - movw %dx,%fs:0 - jnz 1f - - xorl %eax,%eax - ret -1: - movl $1,%eax - ret - |