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Diffstat (limited to 'include/x86/arch.h')
| -rw-r--r-- | include/x86/arch.h | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/include/x86/arch.h b/include/x86/arch.h deleted file mode 100644 index df0b2e2..0000000 --- a/include/x86/arch.h +++ /dev/null @@ -1,299 +0,0 @@ -/* -** @file arch.h -** -** @author Warren R. Carithers -** @author K. Reek -** -** Definitions of constants and macros for use -** with the x86 architecture and registers. -** -*/ - -#ifndef X86ARCH_H_ -#define X86ARCH_H_ - -/* -** Video stuff -*/ -#define VID_BASE_ADDR 0xB8000 - -/* -** Memory management -*/ -#define SEG_PRESENT 0x80 -#define SEG_PL_0 0x00 -#define SEG_PL_1 0x20 -#define SEG_PL_2 0x40 -#define SEG_PL_3 0x50 -#define SEG_SYSTEM 0x00 -#define SEG_NON_SYSTEM 0x10 -#define SEG_32BIT 0x04 -#define DESC_IGATE 0x06 - -/* -** Exceptions -*/ -#define N_EXCEPTIONS 256 - -/* -** Bit definitions in registers -** -** See IA-32 Intel Architecture SW Dev. Manual, Volume 3: System -** Programming Guide, page 2-8. -*/ -/* -** EFLAGS -*/ -#define EFL_RSVD 0xffc00000 /* reserved */ -#define EFL_MB0 0x00008020 /* must be zero */ -#define EFL_MB1 0x00000002 /* must be 1 */ - -#define EFL_ID 0x00200000 -#define EFL_VIP 0x00100000 -#define EFL_VIF 0x00080000 -#define EFL_AC 0x00040000 -#define EFL_VM 0x00020000 -#define EFL_RF 0x00010000 -#define EFL_NT 0x00004000 -#define EFL_IOPL 0x00003000 -#define EFL_OF 0x00000800 -#define EFL_DF 0x00000400 -#define EFL_IF 0x00000200 -#define EFL_TF 0x00000100 -#define EFL_SF 0x00000080 -#define EFL_ZF 0x00000040 -#define EFL_AF 0x00000010 -#define EFL_PF 0x00000004 -#define EFL_CF 0x00000001 - -/* -** CR0, CR1, CR2, CR3, CR4 -** -** IA-32 V3, page 2-12. -*/ -#define CR0_RSVD 0x1ffaffc0 -#define CR0_PG 0x80000000 -#define CR0_CD 0x40000000 -#define CR0_NW 0x20000000 -#define CR0_AM 0x00040000 -#define CR0_WP 0x00010000 -#define CR0_NE 0x00000020 -#define CR0_ET 0x00000010 -#define CR0_TS 0x00000008 -#define CR0_EM 0x00000004 -#define CR0_MP 0x00000002 -#define CR0_PE 0x00000001 - -#define CR1_RSVD 0xffffffff - -#define CR2_RSVD 0x00000000 -#define CR2_PF_LIN_ADDR 0xffffffff - -#define CR3_RSVD 0x00000fe7 -#define CR3_PD_BASE 0xfffff000 -#define CR3_PCD 0x00000010 -#define CR3_PWT 0x00000008 - -#define CR4_RSVD 0xfd001000 -#define CR4_UINT 0x02000000 -#define CR4_PKS 0x01000000 -#define CR4_CET 0x00800000 -#define CR4_PKE 0x00400000 -#define CR4_SMAP 0x00200000 -#define CR4_SMEP 0x00100000 -#define CR4_KL 0x00080000 -#define CR4_OSXS 0x00040000 -#define CR4_PCID 0x00020000 -#define CR4_FSGS 0x00010000 -#define CR4_SMXE 0x00004000 -#define CR4_VMXE 0x00002000 -#define CR4_LA57 0x00001000 -#define CR4_UMIP 0x00000800 -#define CR4_OSXMMEXCPT 0x00000400 -#define CR4_OSFXSR 0x00000200 -#define CR4_PCE 0x00000100 -#define CR4_PGE 0x00000080 -#define CR4_MCE 0x00000040 -#define CR4_PAE 0x00000020 -#define CR4_PSE 0x00000010 -#define CR4_DE 0x00000008 -#define CR4_TSD 0x00000004 -#define CR4_PVI 0x00000002 -#define CR4_VME 0x00000001 - -/* -** PMode segment selector field masks -** -** IA-32 V3, page 3-8. -*/ -#define SEG_SEL_IX_MASK 0xfff8 -#define SEG_SEL_TI_MASK 0x0004 -#define SEG_SEL_RPL_MASK 0x0003 - -/* -** Segment descriptor bytes -** -** IA-32 V3, page 3-10. -** -** Bytes: -** 0, 1: segment limit 15:0 -** 2, 3: base address 15:0 -** 4: base address 23:16 -** 7: base address 31:24 -*/ -/* -** Byte 5: access control bits -** 7: present -** 6-5: DPL -** 4: system/user -** 3-0: type -*/ -#define SEG_ACCESS_P_MASK 0x80 -#define SEG_PRESENT 0x80 -#define SEG_NOT_PRESENT 0x00 - -#define SEG_ACCESS_DPL_MASK 0x60 -#define SEG_DPL_0 0x00 -#define SEG_DPL_1 0x20 -#define SEG_DPL_2 0x40 -#define SEG_DPL_3 0x60 - -#define SEG_ACCESS_S_MASK 0x10 -#define SEG_SYSTEM 0x00 -#define SEG_NON_SYSTEM 0x10 - -#define SEG_TYPE_MASK 0x0f -#define SEG_DATA_A_BIT 0x1 -#define SEG_DATA_W_BIT 0x2 -#define SEG_DATA_E_BIT 0x4 -#define SEG_CODE_A_BIT 0x1 -#define SEG_CODE_R_BIT 0x2 -#define SEG_CODE_C_BIT 0x4 -#define SEG_DATA_RO 0x0 -#define SEG_DATA_ROA 0x1 -#define SEG_DATA_RW 0x2 -#define SEG_DATA_RWA 0x3 -#define SEG_DATA_RO_XD 0x4 -#define SEG_DATA_RO_XDA 0x5 -#define SEG_DATA_RW_XW 0x6 -#define SEG_DATA_RW_XWA 0x7 -#define SEG_CODE_XO 0x8 -#define SEG_CODE_XOA 0x9 -#define SEG_CODE_XR 0xa -#define SEG_CODE_XRA 0xb -#define SEG_CODE_XO_C 0xc -#define SEG_CODE_XO_CA 0xd -#define SEG_CODE_XR_C 0xe -#define SEG_CODE_XR_CA 0xf - -/* -** Byte 6: sizes -** 7: granularity -** 6: d/b -** 5: long mode -** 4: available! -** 3-0: upper 4 bits of limit -** 7: base address 31:24 -*/ -#define SEG_SIZE_G_MASK 0x80 -#define SEG_GRAN_BYTE 0x00 -#define SEG_GRAN_4KBYTE 0x80 - -#define SEG_SIZE_D_B_MASK 0x40 -#define SEG_DB_16BIT 0x00 -#define SEG_DB_32BIT 0x40 - -#define SEG_SIZE_L_MASK 0x20 -#define SEG_L_64BIT 0x20 -#define SEG_L_32BIT 0x00 - -#define SEG_SIZE_AVL_MASK 0x10 - -#define SEG_SIZE_LIM_19_16_MASK 0x0f - -/* -** System-segment and gate-descriptor types -** -** IA-32 V3, page 3-15. -*/ -// type 0: reserved -#define SEG_SYS_16BIT_TSS_AVAIL 0x1 -#define SEG_SYS_LDT 0x2 -#define SEG_SYS_16BIT_TSS_BUSY 0x3 -#define SEG_SYS_16BIT_CALL_GATE 0x4 -#define SEG_SYS_TASK_GATE 0x5 -#define SEG_SYS_16BIT_INT_GATE 0x6 -#define SEG_SYS_16BIT_TRAP_GATE 0x7 -// type 8: reserved -#define SEG_SYS_32BIT_TSS_AVAIL 0x9 -// type A: reserved -#define SEG_SYS_32BIT_TSS_BUSY 0xb -#define SEG_SYS_32BIT_CALL_GATE 0xc -// type D: reserved -#define SEG_SYS_32BIT_INT_GATE 0xe -#define SEG_SYS_32BIT_TRAP_GATE 0xf - -/* -** IDT Descriptors -** -** IA-32 V3, page 5-13. -** -** All have a segment selector in bytes 2 and 3; Task Gate descriptors -** have bytes 0, 1, 4, 6, and 7 reserved; others have bytes 0, 1, 6, -** and 7 devoted to the 16 bits of the Offset, with the low nybble of -** byte 4 reserved. -*/ -#define IDT_PRESENT 0x8000 -#define IDT_DPL_MASK 0x6000 -#define IDT_DPL_0 0x0000 -#define IDT_DPL_1 0x2000 -#define IDT_DPL_2 0x4000 -#define IDT_DPL_3 0x6000 -#define IDT_GATE_TYPE 0x0f00 -#define IDT_TASK_GATE 0x0500 -#define IDT_INT16_GATE 0x0600 -#define IDT_INT32_GATE 0x0e00 -#define IDT_TRAP16_GATE 0x0700 -#define IDT_TRAP32_GATE 0x0f00 - -/* -** Interrupt vectors -*/ -// predefined by the architecture -#define VEC_DIVIDE_ERROR 0x00 -#define VEC_DEBUG_EXCEPTION 0x01 -#define VEC_NMI_INTERRUPT 0x02 -#define VEC_BREAKPOINT 0x03 -#define VEC_OVERFLOW 0x04 -#define VEC_BOUND_RANGE_EXCEEDED 0x05 -#define VEC_INVALID_OPCODE 0x06 -#define VEC_DEVICE_NOT_AVAILABLE 0x07 -#define VEC_DOUBLE_FAULT 0x08 -#define VEC_COPROCESSOR_OVERRUN 0x09 -#define VEC_INVALID_TSS 0x0a -#define VEC_SEGMENT_NOT_PRESENT 0x0b -#define VEC_STACK_FAULT 0x0c -#define VEC_GENERAL_PROTECTION 0x0d -#define VEC_PAGE_FAULT 0x0e -// 0x0f is reserved - unused -#define VEC_FPU_ERROR 0x10 -#define VEC_ALIGNMENT_CHECK 0x11 -#define VEC_MACHINE_CHECK 0x12 -#define VEC_SIMD_FP_EXCEPTION 0x13 -#define VEC_VIRT_EXCEPTION 0x14 -#define VEC_CTRL_PROT_EXCEPTION 0x15 -// 0x16 through 0x1f are reserved - -// 0x20 through 0xff are user-defined, non-reserved - -// IRQ0 through IRQ15 will use vectors 0x20 through 0x2f -#define VEC_TIMER 0x20 -#define VEC_KBD 0x21 -#define VEC_COM2 0x23 -#define VEC_COM1 0x24 -#define VEC_PARALLEL 0x25 -#define VEC_FLOPPY 0x26 -#define VEC_MYSTERY 0x27 -#define VEC_MOUSE 0x2c - -#endif |