diff options
Diffstat (limited to 'py/asmarm.c')
| -rw-r--r-- | py/asmarm.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/py/asmarm.c b/py/asmarm.c index 634f2db4f..b20bdebde 100644 --- a/py/asmarm.c +++ b/py/asmarm.c @@ -168,13 +168,23 @@ void asm_arm_entry(asm_arm_t *as, int num_locals) { emit_al(as, asm_arm_op_push(as->push_reglist | 1 << ASM_ARM_REG_LR)); if (as->stack_adjust > 0) { - emit_al(as, asm_arm_op_sub_imm(ASM_ARM_REG_SP, ASM_ARM_REG_SP, as->stack_adjust)); + if (as->stack_adjust < 0x100) { + emit_al(as, asm_arm_op_sub_imm(ASM_ARM_REG_SP, ASM_ARM_REG_SP, as->stack_adjust)); + } else { + asm_arm_mov_reg_i32_optimised(as, ASM_ARM_REG_R8, as->stack_adjust); + emit_al(as, asm_arm_op_sub_reg(ASM_ARM_REG_SP, ASM_ARM_REG_SP, ASM_ARM_REG_R8)); + } } } void asm_arm_exit(asm_arm_t *as) { if (as->stack_adjust > 0) { - emit_al(as, asm_arm_op_add_imm(ASM_ARM_REG_SP, ASM_ARM_REG_SP, as->stack_adjust)); + if (as->stack_adjust < 0x100) { + emit_al(as, asm_arm_op_add_imm(ASM_ARM_REG_SP, ASM_ARM_REG_SP, as->stack_adjust)); + } else { + asm_arm_mov_reg_i32_optimised(as, ASM_ARM_REG_R8, as->stack_adjust); + emit_al(as, asm_arm_op_add_reg(ASM_ARM_REG_SP, ASM_ARM_REG_SP, ASM_ARM_REG_R8)); + } } emit_al(as, asm_arm_op_pop(as->push_reglist | (1 << ASM_ARM_REG_PC))); |