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Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/biosemu/besys.c')
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/biosemu/besys.c | 408 |
1 files changed, 0 insertions, 408 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/biosemu/besys.c b/board/MAI/bios_emulator/scitech/src/biosemu/besys.c deleted file mode 100644 index 1512ce9bf9..0000000000 --- a/board/MAI/bios_emulator/scitech/src/biosemu/besys.c +++ /dev/null @@ -1,408 +0,0 @@ -/**************************************************************************** -* -* BIOS emulator and interface -* to Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file includes BIOS emulator I/O and memory access -* functions. -* -****************************************************************************/ - -#include "biosemui.h" - -/*------------------------------- Macros ----------------------------------*/ - -/* Macros to read and write values to x86 bus memory. Replace these as - * necessary if you need to do something special to access memory over - * the bus on a particular processor family. - */ - -#define readb(base,off) *((u8*)((u32)(base) + (off))) -#define readw(base,off) *((u16*)((u32)(base) + (off))) -#define readl(base,off) *((u32*)((u32)(base) + (off))) -#define writeb(v,base,off) *((u8*)((u32)(base) + (off))) = (v) -#define writew(v,base,off) *((u16*)((u32)(base) + (off))) = (v) -#define writel(v,base,off) *((u32*)((u32)(base) + (off))) = (v) - -/*----------------------------- Implementation ----------------------------*/ - -#ifdef DEBUG -# define DEBUG_MEM() (M.x86.debug & DEBUG_MEM_TRACE_F) -#else -# define DEBUG_MEM() -#endif - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read - -RETURNS: -Byte value read from emulator memory. - -REMARKS: -Reads a byte value from the emulator memory. We have three distinct memory -regions that are handled differently, which this function handles. -****************************************************************************/ -u8 X86API BE_rdb( - u32 addr) -{ - u8 val = 0; - - if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) { - val = *(u8*)(_BE_env.biosmem_base + addr - 0xC0000); - } - else if (addr >= 0xA0000 && addr <= 0xFFFFF) { - val = readb(_BE_env.busmem_base, addr - 0xA0000); - } - else if (addr > M.mem_size - 1) { -DB( printk("mem_read: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - else { - val = *(u8*)(M.mem_base + addr); - } -DB( if (DEBUG_MEM()) - printk("%#08x 1 -> %#x\n", addr, val);) - return val; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read - -RETURNS: -Word value read from emulator memory. - -REMARKS: -Reads a word value from the emulator memory. We have three distinct memory -regions that are handled differently, which this function handles. -****************************************************************************/ -u16 X86API BE_rdw( - u32 addr) -{ - u16 val = 0; - - if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - addr -= 0xC0000; - val = ( *(u8*)(_BE_env.biosmem_base + addr) | - (*(u8*)(_BE_env.biosmem_base + addr + 1) << 8)); - } - else -#endif - val = *(u16*)(_BE_env.biosmem_base + addr - 0xC0000); - } - else if (addr >= 0xA0000 && addr <= 0xFFFFF) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - addr -= 0xA0000; - val = ( readb(_BE_env.busmem_base, addr) | - (readb(_BE_env.busmem_base, addr + 1) << 8)); - } - else -#endif - val = readw(_BE_env.busmem_base, addr - 0xA0000); - } - else if (addr > M.mem_size - 2) { -DB( printk("mem_read: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - else { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - val = ( *(u8*)(M.mem_base + addr) | - (*(u8*)(M.mem_base + addr + 1) << 8)); - } - else -#endif - val = *(u16*)(M.mem_base + addr); - } -DB( if (DEBUG_MEM()) - printk("%#08x 2 -> %#x\n", addr, val);) - return val; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read - -RETURNS: -Long value read from emulator memory. - -REMARKS: -Reads a long value from the emulator memory. We have three distinct memory -regions that are handled differently, which this function handles. -****************************************************************************/ -u32 X86API BE_rdl( - u32 addr) -{ - u32 val = 0; - - if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x3) { - addr -= 0xC0000; - val = ( *(u8*)(_BE_env.biosmem_base + addr + 0) | - (*(u8*)(_BE_env.biosmem_base + addr + 1) << 8) | - (*(u8*)(_BE_env.biosmem_base + addr + 2) << 16) | - (*(u8*)(_BE_env.biosmem_base + addr + 3) << 24)); - } - else -#endif - val = *(u32*)(_BE_env.biosmem_base + addr - 0xC0000); - } - else if (addr >= 0xA0000 && addr <= 0xFFFFF) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x3) { - addr -= 0xA0000; - val = ( readb(_BE_env.busmem_base, addr) | - (readb(_BE_env.busmem_base, addr + 1) << 8) | - (readb(_BE_env.busmem_base, addr + 2) << 16) | - (readb(_BE_env.busmem_base, addr + 3) << 24)); - } - else -#endif - val = readl(_BE_env.busmem_base, addr - 0xA0000); - } - else if (addr > M.mem_size - 4) { -DB( printk("mem_read: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - else { -#ifdef __BIG_ENDIAN__ - if (addr & 0x3) { - val = ( *(u8*)(M.mem_base + addr + 0) | - (*(u8*)(M.mem_base + addr + 1) << 8) | - (*(u8*)(M.mem_base + addr + 2) << 16) | - (*(u8*)(M.mem_base + addr + 3) << 24)); - } - else -#endif - val = *(u32*)(M.mem_base + addr); - } -DB( if (DEBUG_MEM()) - printk("%#08x 4 -> %#x\n", addr, val);) - return val; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read -val - Value to store - -REMARKS: -Writes a byte value to emulator memory. We have three distinct memory -regions that are handled differently, which this function handles. -****************************************************************************/ -void X86API BE_wrb( - u32 addr, - u8 val) -{ -DB( if (DEBUG_MEM()) - printk("%#08x 1 <- %#x\n", addr, val);) - if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) { - *(u8*)(_BE_env.biosmem_base + addr - 0xC0000) = val; - } - else if (addr >= 0xA0000 && addr <= 0xFFFFF) { - writeb(val, _BE_env.busmem_base, addr - 0xA0000); - } - else if (addr > M.mem_size-1) { -DB( printk("mem_write: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - else { - *(u8*)(M.mem_base + addr) = val; - } -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read -val - Value to store - -REMARKS: -Writes a word value to emulator memory. We have three distinct memory -regions that are handled differently, which this function handles. -****************************************************************************/ -void X86API BE_wrw( - u32 addr, - u16 val) -{ -DB( if (DEBUG_MEM()) - printk("%#08x 2 <- %#x\n", addr, val);) - if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - addr -= 0xC0000; - *(u8*)(_BE_env.biosmem_base + addr + 0) = (val >> 0) & 0xff; - *(u8*)(_BE_env.biosmem_base + addr + 1) = (val >> 8) & 0xff; - } - else -#endif - *(u16*)(_BE_env.biosmem_base + addr - 0xC0000) = val; - } - else if (addr >= 0xA0000 && addr <= 0xFFFFF) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - addr -= 0xA0000; - writeb(val >> 0, _BE_env.busmem_base, addr); - writeb(val >> 8, _BE_env.busmem_base, addr + 1); - } - else -#endif - writew(val, _BE_env.busmem_base, addr - 0xA0000); - } - else if (addr > M.mem_size-2) { -DB( printk("mem_write: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - else { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - *(u8*)(M.mem_base + addr + 0) = (val >> 0) & 0xff; - *(u8*)(M.mem_base + addr + 1) = (val >> 8) & 0xff; - } - else -#endif - *(u16*)(M.mem_base + addr) = val; - } -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read -val - Value to store - -REMARKS: -Writes a long value to emulator memory. We have three distinct memory -regions that are handled differently, which this function handles. -****************************************************************************/ -void X86API BE_wrl( - u32 addr, - u32 val) -{ -DB( if (DEBUG_MEM()) - printk("%#08x 4 <- %#x\n", addr, val);) - if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - addr -= 0xC0000; - *(u8*)(M.mem_base + addr + 0) = (val >> 0) & 0xff; - *(u8*)(M.mem_base + addr + 1) = (val >> 8) & 0xff; - *(u8*)(M.mem_base + addr + 2) = (val >> 16) & 0xff; - *(u8*)(M.mem_base + addr + 3) = (val >> 24) & 0xff; - } - else -#endif - *(u32*)(M.mem_base + addr - 0xC0000) = val; - } - else if (addr >= 0xA0000 && addr <= 0xFFFFF) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x3) { - addr -= 0xA0000; - writeb(val >> 0, _BE_env.busmem_base, addr); - writeb(val >> 8, _BE_env.busmem_base, addr + 1); - writeb(val >> 16, _BE_env.busmem_base, addr + 1); - writeb(val >> 24, _BE_env.busmem_base, addr + 1); - } - else -#endif - writel(val, _BE_env.busmem_base, addr - 0xA0000); - } - else if (addr > M.mem_size-4) { -DB( printk("mem_write: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - else { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - *(u8*)(M.mem_base + addr + 0) = (val >> 0) & 0xff; - *(u8*)(M.mem_base + addr + 1) = (val >> 8) & 0xff; - *(u8*)(M.mem_base + addr + 2) = (val >> 16) & 0xff; - *(u8*)(M.mem_base + addr + 3) = (val >> 24) & 0xff; - } - else -#endif - *(u32*)(M.mem_base + addr) = val; - } -} - -/* Debug functions to do ISA/PCI bus port I/O */ - -#ifdef DEBUG -#define DEBUG_IO() (M.x86.debug & DEBUG_IO_TRACE_F) - -u8 X86API BE_inb(int port) -{ - u8 val = PM_inpb(port); - if (DEBUG_IO()) - printk("%04X:%04X: inb.%04X -> %02X\n",M.x86.saved_cs, M.x86.saved_ip, (ushort)port, val); - return val; -} - -u16 X86API BE_inw(int port) -{ - u16 val = PM_inpw(port); - if (DEBUG_IO()) - printk("%04X:%04X: inw.%04X -> %04X\n",M.x86.saved_cs, M.x86.saved_ip, (ushort)port, val); - return val; -} - -u32 X86API BE_inl(int port) -{ - u32 val = PM_inpd(port); - if (DEBUG_IO()) - printk("%04X:%04X: inl.%04X -> %08X\n",M.x86.saved_cs, M.x86.saved_ip, (ushort)port, val); - return val; -} - -void X86API BE_outb(int port, u8 val) -{ - if (DEBUG_IO()) - printk("%04X:%04X: outb.%04X <- %02X\n",M.x86.saved_cs, M.x86.saved_ip, (ushort)port, val); - PM_outpb(port,val); -} - -void X86API BE_outw(int port, u16 val) -{ - if (DEBUG_IO()) - printk("%04X:%04X: outw.%04X <- %04X\n",M.x86.saved_cs, M.x86.saved_ip, (ushort)port, val); - PM_outpw(port,val); -} - -void X86API BE_outl(int port, u32 val) -{ - if (DEBUG_IO()) - printk("%04X:%04X: outl.%04X <- %08X\n",M.x86.saved_cs, M.x86.saved_ip, (ushort)port, val); - PM_outpd(port,val); -} -#endif |
