diff options
Diffstat (limited to 'py')
| -rw-r--r-- | py/asmarm.c | 26 | ||||
| -rw-r--r-- | py/asmarm.h | 12 | ||||
| -rw-r--r-- | py/emitnative.c | 5 |
3 files changed, 26 insertions, 17 deletions
diff --git a/py/asmarm.c b/py/asmarm.c index d304567882..5322321553 100644 --- a/py/asmarm.c +++ b/py/asmarm.c @@ -333,9 +333,16 @@ void asm_arm_asr_reg_reg(asm_arm_t *as, uint rd, uint rs) { emit_al(as, 0x1a00050 | (rd << 12) | (rs << 8) | rd); } -void asm_arm_ldr_reg_reg(asm_arm_t *as, uint rd, uint rn, uint byte_offset) { - // ldr rd, [rn, #off] - emit_al(as, 0x5900000 | (rn << 16) | (rd << 12) | byte_offset); +void asm_arm_ldr_reg_reg_offset(asm_arm_t *as, uint rd, uint rn, uint byte_offset) { + if (byte_offset < 0x1000) { + // ldr rd, [rn, #off] + emit_al(as, 0x5900000 | (rn << 16) | (rd << 12) | byte_offset); + } else { + // mov r8, #off + // ldr rd, [rn, r8] + asm_arm_mov_reg_i32_optimised(as, ASM_ARM_REG_R8, byte_offset); + emit_al(as, 0x7900000 | (rn << 16) | (rd << 12) | ASM_ARM_REG_R8); + } } void asm_arm_ldrh_reg_reg(asm_arm_t *as, uint rd, uint rn) { @@ -376,9 +383,16 @@ void asm_arm_ldr_reg_reg_reg(asm_arm_t *as, uint rd, uint rm, uint rn) { emit_al(as, 0x7900100 | (rm << 16) | (rd << 12) | rn); } -void asm_arm_str_reg_reg(asm_arm_t *as, uint rd, uint rm, uint byte_offset) { - // str rd, [rm, #off] - emit_al(as, 0x5800000 | (rm << 16) | (rd << 12) | byte_offset); +void asm_arm_str_reg_reg_offset(asm_arm_t *as, uint rd, uint rm, uint byte_offset) { + if (byte_offset < 0x1000) { + // str rd, [rm, #off] + emit_al(as, 0x5800000 | (rm << 16) | (rd << 12) | byte_offset); + } else { + // mov r8, #off + // str rd, [rm, r8] + asm_arm_mov_reg_i32_optimised(as, ASM_ARM_REG_R8, byte_offset); + emit_al(as, 0x7800000 | (rm << 16) | (rd << 12) | ASM_ARM_REG_R8); + } } void asm_arm_strh_reg_reg(asm_arm_t *as, uint rd, uint rm) { diff --git a/py/asmarm.h b/py/asmarm.h index 2c3af41312..07ed425c98 100644 --- a/py/asmarm.h +++ b/py/asmarm.h @@ -109,11 +109,11 @@ void asm_arm_lsr_reg_reg(asm_arm_t *as, uint rd, uint rs); void asm_arm_asr_reg_reg(asm_arm_t *as, uint rd, uint rs); // memory -void asm_arm_ldr_reg_reg(asm_arm_t *as, uint rd, uint rn, uint byte_offset); +void asm_arm_ldr_reg_reg_offset(asm_arm_t *as, uint rd, uint rn, uint byte_offset); void asm_arm_ldrh_reg_reg(asm_arm_t *as, uint rd, uint rn); void asm_arm_ldrh_reg_reg_offset(asm_arm_t *as, uint rd, uint rn, uint byte_offset); void asm_arm_ldrb_reg_reg(asm_arm_t *as, uint rd, uint rn); -void asm_arm_str_reg_reg(asm_arm_t *as, uint rd, uint rm, uint byte_offset); +void asm_arm_str_reg_reg_offset(asm_arm_t *as, uint rd, uint rm, uint byte_offset); void asm_arm_strh_reg_reg(asm_arm_t *as, uint rd, uint rm); void asm_arm_strb_reg_reg(asm_arm_t *as, uint rd, uint rm); @@ -212,14 +212,14 @@ void asm_arm_bx_reg(asm_arm_t *as, uint reg_src); #define ASM_LOAD8_REG_REG(as, reg_dest, reg_base) asm_arm_ldrb_reg_reg((as), (reg_dest), (reg_base)) #define ASM_LOAD16_REG_REG(as, reg_dest, reg_base) asm_arm_ldrh_reg_reg((as), (reg_dest), (reg_base)) #define ASM_LOAD16_REG_REG_OFFSET(as, reg_dest, reg_base, uint16_offset) asm_arm_ldrh_reg_reg_offset((as), (reg_dest), (reg_base), 2 * (uint16_offset)) -#define ASM_LOAD32_REG_REG(as, reg_dest, reg_base) asm_arm_ldr_reg_reg((as), (reg_dest), (reg_base), 0) -#define ASM_LOAD32_REG_REG_OFFSET(as, reg_dest, reg_base, word_offset) asm_arm_ldr_reg_reg((as), (reg_dest), (reg_base), 4 * (word_offset)) +#define ASM_LOAD32_REG_REG(as, reg_dest, reg_base) asm_arm_ldr_reg_reg_offset((as), (reg_dest), (reg_base), 0) +#define ASM_LOAD32_REG_REG_OFFSET(as, reg_dest, reg_base, word_offset) asm_arm_ldr_reg_reg_offset((as), (reg_dest), (reg_base), 4 * (word_offset)) #define ASM_STORE_REG_REG_OFFSET(as, reg_value, reg_base, word_offset) ASM_STORE32_REG_REG_OFFSET((as), (reg_value), (reg_base), (word_offset)) #define ASM_STORE8_REG_REG(as, reg_value, reg_base) asm_arm_strb_reg_reg((as), (reg_value), (reg_base)) #define ASM_STORE16_REG_REG(as, reg_value, reg_base) asm_arm_strh_reg_reg((as), (reg_value), (reg_base)) -#define ASM_STORE32_REG_REG(as, reg_value, reg_base) asm_arm_str_reg_reg((as), (reg_value), (reg_base), 0) -#define ASM_STORE32_REG_REG_OFFSET(as, reg_value, reg_base, word_offset) asm_arm_str_reg_reg((as), (reg_value), (reg_base), 4 * (word_offset)) +#define ASM_STORE32_REG_REG(as, reg_value, reg_base) asm_arm_str_reg_reg_offset((as), (reg_value), (reg_base), 0) +#define ASM_STORE32_REG_REG_OFFSET(as, reg_value, reg_base, word_offset) asm_arm_str_reg_reg_offset((as), (reg_value), (reg_base), 4 * (word_offset)) #define ASM_LOAD8_REG_REG_REG(as, reg_dest, reg_base, reg_index) asm_arm_ldrb_reg_reg_reg((as), (reg_dest), (reg_base), (reg_index)) #define ASM_LOAD16_REG_REG_REG(as, reg_dest, reg_base, reg_index) asm_arm_ldrh_reg_reg_reg((as), (reg_dest), (reg_base), (reg_index)) diff --git a/py/emitnative.c b/py/emitnative.c index 8ac9810c8f..7662de69e2 100644 --- a/py/emitnative.c +++ b/py/emitnative.c @@ -1845,11 +1845,6 @@ static void emit_native_store_subscr(emit_t *emit) { #else if (index_value != 0) { // index is a non-zero immediate - #if N_ARM - ASM_MOV_REG_IMM(emit->as, reg_index, index_value); - asm_arm_str_reg_reg_reg(emit->as, reg_value, reg_base, reg_index); - break; - #endif ASM_MOV_REG_IMM(emit->as, reg_index, index_value << 2); ASM_ADD_REG_REG(emit->as, reg_index, reg_base); // add 4*index to base reg_base = reg_index; |