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Minor fixes to Linux and Chainloading protocols

This commit is contained in:
mintsuki 2020-09-26 00:28:36 +02:00
parent 2483902b88
commit 5457af4202
3 changed files with 8 additions and 3 deletions
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limine.bin
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7
stage2/protos/chainload.c
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@ -10,7 +10,8 @@
__attribute__((section(".realmode"), used))
static void spinup(uint8_t drive) {
asm volatile (
// Jump to real mode
"cld\n\t"
"jmp 0x08:1f\n\t"
"1: .code16\n\t"
"mov ax, 0x10\n\t"
@ -30,9 +31,13 @@ static void spinup(uint8_t drive) {
"mov fs, ax\n\t"
"mov gs, ax\n\t"
"mov ss, ax\n\t"
"sti\n\t"
"push 0\n\t"
"push 0x7c00\n\t"
"retf\n\t"
".code32\n\t"
:
: "d" (drive)

4
stage2/protos/linux.c
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@ -15,7 +15,6 @@
__attribute__((section(".realmode"), used))
static void spinup(uint16_t real_mode_code_seg, uint16_t kernel_entry_seg) {
asm volatile (
"cli\n\t"
"cld\n\t"
"jmp 0x08:1f\n\t"
@ -36,8 +35,9 @@ static void spinup(uint16_t real_mode_code_seg, uint16_t kernel_entry_seg) {
"mov fs, bx\n\t"
"mov gs, bx\n\t"
"mov ss, bx\n\t"
"mov esp, 0xfdf0\n\t"
"mov sp, 0xfdf0\n\t"
"sti\n\t"
"push cx\n\t"
"push 0\n\t"