x86-bare-metal-examples/cs.S

/* https://github.com/cirosantilli/x86-bare-metal-examples#cs */

#include "common.h"
BEGIN
    CLEAR

    mov %cs, %ax
    PRINT_HEX <%al>
    PRINT_NEWLINE

    /* CS = 1 */
    ljmp $1, $1f
    1:
    .skip 0x10
    mov %cs, %ax
    PRINT_HEX <%al>
    PRINT_NEWLINE

    /* CS = 2 */
    ljmp $2, $1f
    1:
    .skip 0x20
    mov %cs, %ax
    PRINT_HEX <%al>
    PRINT_NEWLINE

    hlt
link all examples to header 2018-12-04 09:46:27 +00:00			`/* https://github.com/cirosantilli/x86-bare-metal-examples#cs */`

Protected mode works but is ugly, CS, SS work, failed lidt real mode attempt 2015-10-17 00:03:05 +02:00			`#include "common.h"`
			`BEGIN`
			`CLEAR`

Move all documentation to README.adoc This includes both separate .md files, and documentation that was on the head of the .S source files. Retest everything as this was done, and fix a few easy things. 2018-05-06 14:33:33 +01:00			`mov %cs, %ax`
			`PRINT_HEX <%al>`
			`PRINT_NEWLINE`

			`/* CS = 1 */`
Protected mode works but is ugly, CS, SS work, failed lidt real mode attempt 2015-10-17 00:03:05 +02:00			`ljmp $1, $1f`
			`1:`
			`.skip 0x10`
			`mov %cs, %ax`
Refactor print_hex 2015-10-20 21:04:49 +02:00			`PRINT_HEX <%al>`
Move all documentation to README.adoc This includes both separate .md files, and documentation that was on the head of the .S source files. Retest everything as this was done, and fix a few easy things. 2018-05-06 14:33:33 +01:00			`PRINT_NEWLINE`
Protected mode works but is ugly, CS, SS work, failed lidt real mode attempt 2015-10-17 00:03:05 +02:00
Move all documentation to README.adoc This includes both separate .md files, and documentation that was on the head of the .S source files. Retest everything as this was done, and fix a few easy things. 2018-05-06 14:33:33 +01:00			`/* CS = 2 */`
Protected mode works but is ugly, CS, SS work, failed lidt real mode attempt 2015-10-17 00:03:05 +02:00			`ljmp $2, $1f`
			`1:`
			`.skip 0x20`
			`mov %cs, %ax`
Refactor print_hex 2015-10-20 21:04:49 +02:00			`PRINT_HEX <%al>`
Move all documentation to README.adoc This includes both separate .md files, and documentation that was on the head of the .S source files. Retest everything as this was done, and fix a few easy things. 2018-05-06 14:33:33 +01:00			`PRINT_NEWLINE`
Protected mode works but is ugly, CS, SS work, failed lidt real mode attempt 2015-10-17 00:03:05 +02:00
			`hlt`