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Start reducing size of codeblock_t structure.

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Re-arrange all variables needed to run a block to fit in a single cache line.
This commit is contained in:
SarahW 2018-11-28 20:29:48 +00:00
commit 2007c25177
5 changed files with 62 additions and 40 deletions
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14
src/codegen_backend.c
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@ -277,7 +277,6 @@ void codegen_block_init(uint32_t phys_addr)
block->ins = 0;
block->pc = cs + cpu_state.pc;
block->_cs = cs;
block->pnt = block_current;
block->phys = phys_addr;
block->dirty_mask = &page->dirty_mask[(phys_addr >> PAGE_MASK_INDEX_SHIFT) & PAGE_MASK_INDEX_MASK];
block->dirty_mask2 = NULL;
@ -287,8 +286,6 @@ void codegen_block_init(uint32_t phys_addr)
block->flags = CODEBLOCK_STATIC_TOP;
block->status = cpu_cur_status;
block->was_recompiled = 0;
recomp_page = block->phys & ~0xfff;
codeblock_tree_add(block);
@ -301,6 +298,11 @@ ir_data_t *codegen_get_ir_data()
return ir_data;
}
static int get_block_nr(codeblock_t *block)
{
return ((uintptr_t)block - (uintptr_t)codeblock) / sizeof(codeblock_t);
}
void codegen_block_start_recompile(codeblock_t *block)
{
page_t *page = &pages[block->phys >> 12];
@ -309,9 +311,9 @@ void codegen_block_start_recompile(codeblock_t *block)
mem_flush_write_page(block->phys, cs+cpu_state.pc);
block_num = HASH(block->phys);
block_current = block->pnt;
block_current = get_block_nr(block);//block->pnt;
if (block->pc != cs + cpu_state.pc || block->was_recompiled)
if (block->pc != cs + cpu_state.pc || (block->flags & CODEBLOCK_WAS_RECOMPILED))
fatal("Recompile to used block!\n");
block->status = cpu_cur_status;
@ -342,7 +344,7 @@ void codegen_block_start_recompile(codeblock_t *block)
cpu_state.seg_ds.checked = cpu_state.seg_es.checked = cpu_state.seg_fs.checked = cpu_state.seg_gs.checked = (cr0 & 1) ? 0 : 1;
block->TOP = cpu_state.TOP & 7;
block->was_recompiled = 1;
block->flags |= CODEBLOCK_WAS_RECOMPILED;
codegen_flat_ds = !(cpu_cur_status & CPU_STATUS_NOTFLATDS);
codegen_flat_ss = !(cpu_cur_status & CPU_STATUS_NOTFLATSS);