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| author | David Guillen Fandos | 2021-05-07 20:41:54 +0200 |
|---|---|---|
| committer | David Guillen Fandos | 2021-05-07 20:41:54 +0200 |
| commit | 37430f22c5234cb09f2325575806b830f947bf8a (patch) | |
| tree | 715e87726e9c9e6c7aec3d7d1e7faf259f6874eb /x86 | |
| parent | 7877a8888b4e607c3df77c5d5f47e2c880cb9a24 (diff) | |
| download | picogpsp-37430f22c5234cb09f2325575806b830f947bf8a.tar.gz picogpsp-37430f22c5234cb09f2325575806b830f947bf8a.tar.bz2 picogpsp-37430f22c5234cb09f2325575806b830f947bf8a.zip | |
Small optimization (~2-4%) and whitespace cleanup!
Cleans up a ton of whitespace in cpu.c (like 100KB!) and improves
readability of some massive decode statements.
Added an optimization for PC-relative loads (pool load) in ROM (since
it's read only and cannot possibily change) that directly emits an
immediate load. This is way faster, specially in MIPS/x86, ARM can be
even faster if we rewrite the immediate load macros to also use a pool.
Diffstat (limited to 'x86')
| -rw-r--r-- | x86/x86_emit.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/x86/x86_emit.h b/x86/x86_emit.h index 45b663b..69c1f8e 100644 --- a/x86/x86_emit.h +++ b/x86/x86_emit.h @@ -325,7 +325,7 @@ typedef enum x86_emit_mov_reg_mem(reg_##ireg, reg_base, reg_index * 4); \ #define generate_load_pc(ireg, new_pc) \ - x86_emit_mov_reg_imm(reg_##ireg, new_pc) \ + x86_emit_mov_reg_imm(reg_##ireg, (new_pc)) \ #define generate_load_imm(ireg, imm) \ x86_emit_mov_reg_imm(reg_##ireg, imm) \ @@ -1894,6 +1894,10 @@ u32 function_cc execute_ror_imm_op(u32 value, u32 shift) // Operation types: imm, mem_reg, mem_imm +#define thumb_load_pc_pool_const(reg_rd, value) \ + generate_load_pc(a0, (value)); \ + generate_store_reg(a0, reg_rd) + #define thumb_access_memory_load(mem_type, reg_rd) \ cycle_count += 2; \ generate_function_call(execute_load_##mem_type); \ |