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| author | Damien George <damien.p.george@gmail.com> | 2018-08-17 01:11:22 +1000 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2018-08-17 14:11:37 +1000 |
| commit | 1ad44acb1522a44a42bfcb0cd017289918915cbc (patch) | |
| tree | 63e35061311852541be3e573f524a097f317732f /py | |
| parent | fd10a11c6bbed4c237e6f099b0161352b7913fa5 (diff) | |
py/asmxtensa: Optimise loading local addr and support larger offsets.
Diffstat (limited to 'py')
| -rw-r--r-- | py/asmxtensa.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/py/asmxtensa.c b/py/asmxtensa.c index d44c310ee..6c7c344f1 100644 --- a/py/asmxtensa.c +++ b/py/asmxtensa.c @@ -178,8 +178,13 @@ 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) { - asm_xtensa_op_mov_n(as, reg_dest, ASM_XTENSA_REG_A1); - asm_xtensa_op_addi(as, reg_dest, reg_dest, (4 + local_num) * WORD_SIZE); + uint off = (4 + local_num) * WORD_SIZE; + if (SIGNED_FIT8(off)) { + asm_xtensa_op_addi(as, reg_dest, ASM_XTENSA_REG_A1, off); + } else { + asm_xtensa_op_movi(as, reg_dest, off); + asm_xtensa_op_add(as, reg_dest, reg_dest, ASM_XTENSA_REG_A1); + } } void asm_xtensa_mov_reg_pcrel(asm_xtensa_t *as, uint reg_dest, uint label) { |