Retro/pcem
Watch
1
0
Fork
You've already forked pcem
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add new codegen memory allocator. This allows the recompiler to allocate memory from a central pool as required. This central pool is by default 64 MB on x86, x86-64 and ARMv8, and 32 MB on ARMv7.

Browse source 
The current design does not allow for ARMv8 literal pools, therefore these have been removed.
This commit is contained in:
SarahW 2019-01-12 15:15:43 +00:00
commit 66fba50e06
26 changed files with 1339 additions and 667 deletions
Download patch file Download diff file Expand all files Collapse all files

9
src/codegen_backend_arm_uops.c
View file

@ -6,6 +6,7 @@
#include "x87.h"
#include "386_common.h"
#include "codegen.h"
#include "codegen_allocator.h"
#include "codegen_backend.h"
#include "codegen_backend_arm_defs.h"
#include "codegen_backend_arm_ops.h"
@ -849,7 +850,7 @@ static int codegen_FP_ENTER(codeblock_t *block, uop_t *uop)
host_arm_call(block, x86_int);
host_arm_B(block, (uintptr_t)&block->data[BLOCK_EXIT_OFFSET]);
*branch_ptr |= ((((uintptr_t)&block->data[block_pos] - (uintptr_t)branch_ptr) - 8) & 0x3fffffc) >> 2;
*branch_ptr |= ((((uintptr_t)&block_write_data[block_pos] - (uintptr_t)branch_ptr) - 8) & 0x3fffffc) >> 2;
return 0;
}
@ -870,7 +871,7 @@ static int codegen_MMX_ENTER(codeblock_t *block, uop_t *uop)
host_arm_call(block, x86_int);
host_arm_B(block, (uintptr_t)&block->data[BLOCK_EXIT_OFFSET]);
*branch_ptr |= ((((uintptr_t)&block->data[block_pos] - (uintptr_t)branch_ptr) - 8) & 0x3fffffc) >> 2;
*branch_ptr |= ((((uintptr_t)&block_write_data[block_pos] - (uintptr_t)branch_ptr) - 8) & 0x3fffffc) >> 2;
host_arm_MOV_IMM(block, REG_TEMP, 0);
host_arm_STR_IMM(block, REG_TEMP, REG_CPUSTATE, (uintptr_t)&cpu_state.tag[0] - (uintptr_t)&cpu_state);
@ -1489,7 +1490,7 @@ static int codegen_MOV_INT_DOUBLE_64(codeblock_t *block, uop_t *uop)
host_arm_call(block, x87_fround64);
host_arm_VMOV_D_64(block, REG_D_TEMP, REG_R0, REG_R1);
*branch_offset |= ((((uintptr_t)&block->data[block_pos] - (uintptr_t)branch_offset) - 8) & 0x3fffffc) >> 2;
*branch_offset |= ((((uintptr_t)&block_write_data[block_pos] - (uintptr_t)branch_offset) - 8) & 0x3fffffc) >> 2;
}
else
fatal("MOV_INT_DOUBLE_64 %02x %02x\n", uop->dest_reg_a_real, uop->src_reg_a_real);
@ -3165,6 +3166,6 @@ void codegen_direct_write_double_stack(codeblock_t *block, int stack_offset, int
void codegen_set_jump_dest(codeblock_t *block, void *p)
{
*(uint32_t *)p |= ((((uintptr_t)&block->data[block_pos] - (uintptr_t)p) - 8) & 0x3fffffc) >> 2;
*(uint32_t *)p |= ((((uintptr_t)&block_write_data[block_pos] - (uintptr_t)p) - 8) & 0x3fffffc) >> 2;
}
#endif