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| author | Damien George <damien.p.george@gmail.com> | 2018-09-16 00:43:24 +1000 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2018-09-16 00:43:24 +1000 |
| commit | 30a45360e73481cce312dd7cb2e344504c889a28 (patch) | |
| tree | 5b658a28e7cd823c46cca263e37d4a5ba5a5d9bf /py/asmxtensa.h | |
| parent | 93d71c5436488d52d47d165dd020217415e79a64 (diff) | |
py/asmxtensa: Make indirect calls using func table, not raw pointers.
Loading a pointer by indexing into the native function table mp_fun_table,
rather than loading an immediate value (via a PC-relative load), uses less
code space.
Diffstat (limited to 'py/asmxtensa.h')
| -rw-r--r-- | py/asmxtensa.h | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/py/asmxtensa.h b/py/asmxtensa.h index d999f5173..ad39f421c 100644 --- a/py/asmxtensa.h +++ b/py/asmxtensa.h @@ -243,6 +243,7 @@ void asm_xtensa_mov_local_reg(asm_xtensa_t *as, int local_num, uint reg_src); void asm_xtensa_mov_reg_local(asm_xtensa_t *as, uint reg_dest, int local_num); void asm_xtensa_mov_reg_local_addr(asm_xtensa_t *as, uint reg_dest, int local_num); void asm_xtensa_mov_reg_pcrel(asm_xtensa_t *as, uint reg_dest, uint label); +void asm_xtensa_call_ind(asm_xtensa_t *as, uint idx); #if GENERIC_ASM_API @@ -280,11 +281,7 @@ void asm_xtensa_mov_reg_pcrel(asm_xtensa_t *as, uint reg_dest, uint label); #define ASM_JUMP_IF_REG_EQ(as, reg1, reg2, label) \ asm_xtensa_bcc_reg_reg_label(as, ASM_XTENSA_CC_EQ, reg1, reg2, label) #define ASM_JUMP_REG(as, reg) asm_xtensa_op_jx((as), (reg)) -#define ASM_CALL_IND(as, ptr, idx) \ - do { \ - asm_xtensa_mov_reg_i32(as, ASM_XTENSA_REG_A0, (uint32_t)ptr); \ - asm_xtensa_op_callx0(as, ASM_XTENSA_REG_A0); \ - } while (0) +#define ASM_CALL_IND(as, ptr, idx) asm_xtensa_call_ind((as), (idx)) #define ASM_MOV_LOCAL_REG(as, local_num, reg_src) asm_xtensa_mov_local_reg((as), (local_num), (reg_src)) #define ASM_MOV_REG_IMM(as, reg_dest, imm) asm_xtensa_mov_reg_i32((as), (reg_dest), (imm)) |