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use TARGET_PAGE_SIZE (Paul Brook)

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1659 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-11-26 10:29:22 +00:00
parent daa579632d
commit 98699967b8
2 changed files with 7 additions and 5 deletions
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4
cpu-all.h
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@ -733,6 +733,8 @@ extern int code_copy_enabled;
#define CPU_INTERRUPT_HARD 0x02 /* hardware interrupt pending */
#define CPU_INTERRUPT_EXITTB 0x04 /* exit the current TB (use for x86 a20 case) */
#define CPU_INTERRUPT_TIMER 0x08 /* internal timer exception pending */
#define CPU_INTERRUPT_FIQ 0x10 /* Fast interrupt pending. */
void cpu_interrupt(CPUState *s, int mask);
void cpu_reset_interrupt(CPUState *env, int mask);
@ -790,9 +792,9 @@ extern uint8_t *phys_ram_base;
extern uint8_t *phys_ram_dirty;
/* physical memory access */
#define IO_MEM_NB_ENTRIES 256
#define TLB_INVALID_MASK (1 << 3)
#define IO_MEM_SHIFT 4
#define IO_MEM_NB_ENTRIES (1 << (TARGET_PAGE_BITS - IO_MEM_SHIFT))
#define IO_MEM_RAM (0 << IO_MEM_SHIFT) /* hardcoded offset */
#define IO_MEM_ROM (1 << IO_MEM_SHIFT) /* hardcoded offset */

8
softmmu_template.h
View file

@ -91,7 +91,7 @@ DATA_TYPE REGPARM(1) glue(glue(__ld, SUFFIX), MMUSUFFIX)(target_ulong addr,
if ((addr & (DATA_SIZE - 1)) != 0)
goto do_unaligned_access;
res = glue(io_read, SUFFIX)(physaddr, tlb_addr);
} else if (((addr & 0xfff) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) {
} else if (((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) {
/* slow unaligned access (it spans two pages or IO) */
do_unaligned_access:
retaddr = GETPC();
@ -130,7 +130,7 @@ static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(target_ulong addr,
if ((addr & (DATA_SIZE - 1)) != 0)
goto do_unaligned_access;
res = glue(io_read, SUFFIX)(physaddr, tlb_addr);
} else if (((addr & 0xfff) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) {
} else if (((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) {
do_unaligned_access:
/* slow unaligned access (it spans two pages) */
addr1 = addr & ~(DATA_SIZE - 1);
@ -208,7 +208,7 @@ void REGPARM(2) glue(glue(__st, SUFFIX), MMUSUFFIX)(target_ulong addr,
goto do_unaligned_access;
retaddr = GETPC();
glue(io_write, SUFFIX)(physaddr, val, tlb_addr, retaddr);
} else if (((addr & 0xfff) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) {
} else if (((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) {
do_unaligned_access:
retaddr = GETPC();
glue(glue(slow_st, SUFFIX), MMUSUFFIX)(addr, val,
@ -245,7 +245,7 @@ static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(target_ulong addr,
if ((addr & (DATA_SIZE - 1)) != 0)
goto do_unaligned_access;
glue(io_write, SUFFIX)(physaddr, val, tlb_addr, retaddr);
} else if (((addr & 0xfff) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) {
} else if (((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) {
do_unaligned_access:
/* XXX: not efficient, but simple */
for(i = 0;i < DATA_SIZE; i++) {