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further fixes to biosemu, added offscreen

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This commit is contained in:
Markus Fröschle
2013-12-29 15:35:40 +00:00
parent 5c0cf1489f
commit a793d4993e
6 changed files with 359 additions and 63 deletions
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114
x86emu/biosemu.c
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@@ -3,6 +3,7 @@
#include "bas_printf.h"
#include "bas_string.h"
#include "util.h"
#include "driver_mem.h"
#include "x86emu.h"
#include "pci.h"
#include "pci_ids.h"
@@ -211,9 +212,7 @@ void outl(uint32_t val, uint16_t port)
void do_int(int num)
{
int ret = 0;
// DPRINTVAL("int ", num);
// DPRINTVALHEX(" vector at ", getIntVect(num));
// DPRINT("\r\n");
switch (num)
{
#ifndef _PC
@@ -221,7 +220,7 @@ void do_int(int num)
case 0x42:
case 0x6D:
if (getIntVect(num) == 0x0000)
DPRINT("un-inited int vector\r\n");
dbg("uninitialised int vector\r\n");
if (getIntVect(num) == 0xFF065)
{
//ret = int42_handler();
@@ -542,64 +541,55 @@ void run_bios(struct radeonfb_info *rinfo)
X86EMU_intrFuncs intFuncs[256];
if ((rinfo->mmio_base == NULL) || (rinfo->io_base == NULL))
{
dbg("%s: rinfo->mmio_base = %p, rinfo->io_base = %p\r\n", __FUNCTION__);
return;
}
rinfo_biosemu = rinfo;
config_address_reg = 0;
offset_port = 0x300;
#ifdef DIRECT_ACCESS
offset_io = (uint32_t)rinfo->io_base-(uint32_t)offset_port;
offset_mem = (uint32_t)rinfo->fb_base-0xA0000;
offset_io = (uint32_t) rinfo->io_base - (uint32_t) offset_port;
offset_mem = (uint32_t) rinfo->fb_base - 0xA0000;
#else
offset_io = rinfo->io_base_phys-(uint32_t)offset_port;
offset_mem = rinfo->fb_base_phys-0xA0000;
offset_io = rinfo->io_base_phys -(uint32_t) offset_port;
offset_mem = rinfo->fb_base_phys - 0xA0000;
#endif
rom_header = (struct rom_header *)0;
rom_header = (struct rom_header *) 0;
do
{
rom_header = (struct rom_header *)((unsigned long)rom_header + image_size); // get next image
rom_data = (struct pci_data *)((unsigned long)rom_header + (unsigned long)BIOS_IN16((long)&rom_header->data));
image_size = (unsigned long)BIOS_IN16((long)&rom_data->ilen) * 512;
}
while((BIOS_IN8((long)&rom_data->type) != 0) && (BIOS_IN8((long)&rom_data->indicator) != 0)); // make sure we got x86 version
if (BIOS_IN8((long)&rom_data->type) != 0)
return;
rom_size = (unsigned long)BIOS_IN8((long)&rom_header->size) * 512;
if (PCI_CLASS_DISPLAY_VGA == BIOS_IN16((long)&rom_data->class_hi))
} while ((BIOS_IN8((long) &rom_data->type) != 0) && (BIOS_IN8((long) &rom_data->indicator) != 0)); // make sure we got x86 version
if (BIOS_IN8((long) &rom_data->type) != 0)
{
#ifdef USE_SDRAM
#if 0
if (os_magic)
{
biosmem = Mxalloc(SIZE_EMU, 3);
if (biosmem == 0)
return;
}
#endif
#else
biosmem = Mxalloc(SIZE_EMU, 0);
dbg("%s: ROM data type = 0x%x\r\n", __FUNCTION__, BIOS_IN8((long) &rom_data->type));
return;
}
rom_size = (unsigned long) BIOS_IN8((long) &rom_header->size) * 512;
if (PCI_CLASS_DISPLAY_VGA == BIOS_IN16((long) &rom_data->class_hi))
{
biosmem = driver_mem_alloc(SIZE_EMU);
if (biosmem == 0)
return;
#endif /* USE_SDRAM */
memset((char *)biosmem, 0, SIZE_EMU);
setup_system_bios((char *)biosmem);
DPRINTVALHEX("Copying VGA ROM Image from ", (long)rinfo->bios_seg+(long)rom_header);
DPRINTVALHEX(" to ", biosmem+PCI_VGA_RAM_IMAGE_START);
DPRINTVALHEX(", ", rom_size);
DPRINT(" bytes\r\n");
#if 0 // 8 bits copy
ptr = (char *)biosmem;
for(i = (long)rom_header, j = PCI_VGA_RAM_IMAGE_START; i < (long)rom_header+rom_size; ptr[j++] = BIOS_IN8(i++));
#else // 32 bits copy
{
long bytes_align = (long)rom_header & 3;
ptr = (unsigned char *)biosmem;
i = (long)rom_header;
dbg("%s: could not allocate X86 BIOS memory\r\n", __FUNCTION__);
return;
}
memset((char *) biosmem, 0, SIZE_EMU);
setup_system_bios((char *) biosmem);
dbg("Copying VGA ROM Image from %p to %p (0x%lx bytes)\r\n", (long) rinfo->bios_seg + (long) rom_header,
biosmem + PCI_VGA_RAM_IMAGE_START, rom_size);
{
long bytes_align = (long) rom_header & 3;
ptr = (unsigned char *) biosmem;
i = (long) rom_header;
j = PCI_VGA_RAM_IMAGE_START;
if (bytes_align)
for(; i < 4 - bytes_align; ptr[j++] = BIOS_IN8(i++));
for(; i < (long)rom_header+rom_size; *((unsigned long *)&ptr[j]) = swpl(BIOS_IN32(i)), i+=4, j+=4);
for(; i < (long) rom_header + rom_size; *((unsigned long *)&ptr[j]) = swpl(BIOS_IN32(i)), i += 4, j += 4);
}
#endif
addr = PCI_VGA_RAM_IMAGE_START;
}
else
@@ -620,34 +610,35 @@ void run_bios(struct radeonfb_info *rinfo)
#endif /* USE_SDRAM */
setup_system_bios((char *)biosmem);
memset((char *)biosmem, 0, SIZE_EMU);
DPRINTVALHEX("Copying non-VGA ROM Image from ", (long)rinfo->bios_seg+(long)rom_header);
DPRINTVALHEX(" to ", biosmem+PCI_RAM_IMAGE_START);
DPRINTVALHEX(", ", rom_size);
DPRINT(" bytes\r\n");
ptr = (unsigned char *)biosmem;
for(i = (long)rom_header, j = PCI_RAM_IMAGE_START; i < (long)rom_header+rom_size; ptr[j++] = BIOS_IN8(i++));
dbg("Copying non-VGA ROM Image from %p to %p (0x%lx bytes)\r\n",
(long) rinfo->bios_seg + (long) rom_header,
biosmem + PCI_RAM_IMAGE_START,
rom_size);
ptr = (unsigned char *) biosmem;
for (i = (long) rom_header, j = PCI_RAM_IMAGE_START; i < (long) rom_header+rom_size; ptr[j++] = BIOS_IN8(i++));
addr = PCI_RAM_IMAGE_START;
}
initialcs = (addr & 0xF0000) >> 4;
initialip = (addr + 3) & 0xFFFF;
X86EMU_setMemBase((void *)biosmem, SIZE_EMU);
for(i = 0; i < 256; i++)
X86EMU_setMemBase((void *) biosmem, SIZE_EMU);
for (i = 0; i < 256; i++)
intFuncs[i] = do_int;
X86EMU_setupIntrFuncs(intFuncs);
{
char *date = "01/01/99";
for(i = 0; date[i]; i++)
for (i = 0; date[i]; i++)
wrb(0xffff5 + i, date[i]);
wrb(0xffff7, '/');
wrb(0xffffa, '/');
}
{
/* FixME: move PIT init to its own file */
outb(0x36, 0x43);
outb(0x00, 0x40);
outb(0x00, 0x40);
/* FixME: move PIT init to its own file */
outb(0x36, 0x43);
outb(0x00, 0x40);
outb(0x00, 0x40);
}
// setup_int_vect();
/* cpu setup */
X86_AX = devfn ? devfn : 0xff;
X86_DX = 0x80;
@@ -658,6 +649,7 @@ void run_bios(struct radeonfb_info *rinfo)
X86_SP = 0xfffe;
X86_DS = 0x0040;
X86_ES = 0x0000;
/* We need a sane way to return from bios
* execution. A hlt instruction and a pointer
* to it, both kept on the stack, will do.
@@ -671,13 +663,13 @@ void run_bios(struct radeonfb_info *rinfo)
pushw(X86_SP + 2);
#ifdef DEBUG_X86EMU
X86EMU_trace_on();
X86EMU_set_debug(DEBUG_DECODE_F | DEBUG_TRACE_F);
X86EMU_set_debug(DEBUG_DECODE_F | DEBUG_TRACE_F);
#endif
DPRINT("X86EMU entering emulator\r\n");
dbg("X86EMU entering emulator\r\n");
//*vblsem = 0;
X86EMU_exec();
//*vblsem = 1;
DPRINT("X86EMU halted\r\n");
dbg("X86EMU halted\r\n");
// biosfn_set_video_mode(0x13); /* 320 x 200 x 256 colors */
#ifdef USE_SDRAM
#if 0
@@ -688,7 +680,7 @@ void run_bios(struct radeonfb_info *rinfo)
}
#endif
#else
memset((char *)biosmem, 0, SIZE_EMU);
Mfree(biosmem);
memset((char *) biosmem, 0, SIZE_EMU);
driver_mem_free(biosmem);
#endif /* USE_SDRAM */
}