diff options
Diffstat (limited to 'py/asmthumb.h')
| -rw-r--r-- | py/asmthumb.h | 93 |
1 files changed, 85 insertions, 8 deletions
diff --git a/py/asmthumb.h b/py/asmthumb.h index de376fd2ce..6b4f5506b6 100644 --- a/py/asmthumb.h +++ b/py/asmthumb.h @@ -58,16 +58,93 @@ void asm_thumb_label_assign(asm_thumb_t *as, uint label); // argument order follows ARM, in general dest is first // note there is a difference between movw and mov.w, and many others! -void asm_thumb_movs_rlo_i8(asm_thumb_t *as, uint rlo_dest, int i8_src); +// FORMAT 2: add/subtract + +#define ASM_THUMB_FORMAT_2_ADD (0x1800) +#define ASM_THUMB_FORMAT_2_SUB (0x1a00) +#define ASM_THUMB_FORMAT_2_REG_OPERAND (0x0000) +#define ASM_THUMB_FORMAT_2_IMM_OPERAND (0x0400) + +void asm_thumb_format_2(asm_thumb_t *as, uint op, uint rlo_dest, uint rlo_src, int src_b); + +static inline void asm_thumb_add_rlo_rlo_rlo(asm_thumb_t *as, uint rlo_dest, uint rlo_src_a, uint rlo_src_b) + { asm_thumb_format_2(as, ASM_THUMB_FORMAT_2_ADD | ASM_THUMB_FORMAT_2_REG_OPERAND, rlo_dest, rlo_src_a, rlo_src_b); } +static inline void asm_thumb_add_rlo_rlo_i3(asm_thumb_t *as, uint rlo_dest, uint rlo_src_a, int i3_src) + { asm_thumb_format_2(as, ASM_THUMB_FORMAT_2_ADD | ASM_THUMB_FORMAT_2_IMM_OPERAND, rlo_dest, rlo_src_a, i3_src); } +static inline void asm_thumb_sub_rlo_rlo_rlo(asm_thumb_t *as, uint rlo_dest, uint rlo_src_a, uint rlo_src_b) + { asm_thumb_format_2(as, ASM_THUMB_FORMAT_2_SUB | ASM_THUMB_FORMAT_2_REG_OPERAND, rlo_dest, rlo_src_a, rlo_src_b); } +static inline void asm_thumb_sub_rlo_rlo_i3(asm_thumb_t *as, uint rlo_dest, uint rlo_src_a, int i3_src) + { asm_thumb_format_2(as, ASM_THUMB_FORMAT_2_SUB | ASM_THUMB_FORMAT_2_IMM_OPERAND, rlo_dest, rlo_src_a, i3_src); } + +// FORMAT 3: move/compare/add/subtract immediate +// These instructions all do zero extension of the i8 value + +#define ASM_THUMB_FORMAT_3_MOV (0x2000) +#define ASM_THUMB_FORMAT_3_CMP (0x2800) +#define ASM_THUMB_FORMAT_3_ADD (0x3000) +#define ASM_THUMB_FORMAT_3_SUB (0x3800) + +void asm_thumb_format_3(asm_thumb_t *as, uint op, uint rlo, int i8); + +static inline void asm_thumb_mov_rlo_i8(asm_thumb_t *as, uint rlo, int i8) { asm_thumb_format_3(as, ASM_THUMB_FORMAT_3_MOV, rlo, i8); } +static inline void asm_thumb_cmp_rlo_i8(asm_thumb_t *as, uint rlo, int i8) { asm_thumb_format_3(as, ASM_THUMB_FORMAT_3_CMP, rlo, i8); } +static inline void asm_thumb_add_rlo_i8(asm_thumb_t *as, uint rlo, int i8) { asm_thumb_format_3(as, ASM_THUMB_FORMAT_3_ADD, rlo, i8); } +static inline void asm_thumb_sub_rlo_i8(asm_thumb_t *as, uint rlo, int i8) { asm_thumb_format_3(as, ASM_THUMB_FORMAT_3_SUB, rlo, i8); } + +// FORMAT 4: ALU operations + +#define ASM_THUMB_FORMAT_4_AND (0x4000) +#define ASM_THUMB_FORMAT_4_EOR (0x4040) +#define ASM_THUMB_FORMAT_4_LSL (0x4080) +#define ASM_THUMB_FORMAT_4_LSR (0x40c0) +#define ASM_THUMB_FORMAT_4_ASR (0x4100) +#define ASM_THUMB_FORMAT_4_ADC (0x4140) +#define ASM_THUMB_FORMAT_4_SBC (0x4180) +#define ASM_THUMB_FORMAT_4_ROR (0x41c0) +#define ASM_THUMB_FORMAT_4_TST (0x4200) +#define ASM_THUMB_FORMAT_4_NEG (0x4240) +#define ASM_THUMB_FORMAT_4_CMP (0x4280) +#define ASM_THUMB_FORMAT_4_CMN (0x42c0) +#define ASM_THUMB_FORMAT_4_ORR (0x4300) +#define ASM_THUMB_FORMAT_4_MUL (0x4340) +#define ASM_THUMB_FORMAT_4_BIC (0x4380) +#define ASM_THUMB_FORMAT_4_MVN (0x43c0) + +void asm_thumb_format_4(asm_thumb_t *as, uint op, uint rlo_dest, uint rlo_src); + +static inline void asm_thumb_cmp_rlo_rlo(asm_thumb_t *as, uint rlo_dest, uint rlo_src) { asm_thumb_format_4(as, ASM_THUMB_FORMAT_4_CMP, rlo_dest, rlo_src); } + +// FORMAT 9: load/store with immediate offset +// For word transfers the offset must be aligned, and >>2 + +// FORMAT 10: load/store halfword +// The offset must be aligned, and >>1 +// The load is zero extended into the register + +#define ASM_THUMB_FORMAT_9_STR (0x6000) +#define ASM_THUMB_FORMAT_9_LDR (0x6800) +#define ASM_THUMB_FORMAT_9_WORD_TRANSFER (0x0000) +#define ASM_THUMB_FORMAT_9_BYTE_TRANSFER (0x1000) + +#define ASM_THUMB_FORMAT_10_STRH (0x8000) +#define ASM_THUMB_FORMAT_10_LDRH (0x8800) + +void asm_thumb_format_9_10(asm_thumb_t *as, uint op, uint rlo_dest, uint rlo_base, uint offset); + +static inline void asm_thumb_str_rlo_rlo_i5(asm_thumb_t *as, uint rlo_src, uint rlo_base, uint word_offset) + { asm_thumb_format_9_10(as, ASM_THUMB_FORMAT_9_STR | ASM_THUMB_FORMAT_9_WORD_TRANSFER, rlo_src, rlo_base, word_offset); } +static inline void asm_thumb_strb_rlo_rlo_i5(asm_thumb_t *as, uint rlo_src, uint rlo_base, uint byte_offset) + { asm_thumb_format_9_10(as, ASM_THUMB_FORMAT_9_STR | ASM_THUMB_FORMAT_9_BYTE_TRANSFER, rlo_src, rlo_base, byte_offset); } +static inline void asm_thumb_ldr_rlo_rlo_i5(asm_thumb_t *as, uint rlo_dest, uint rlo_base, uint word_offset) + { asm_thumb_format_9_10(as, ASM_THUMB_FORMAT_9_LDR | ASM_THUMB_FORMAT_9_WORD_TRANSFER, rlo_dest, rlo_base, word_offset); } +static inline void asm_thumb_ldrb_rlo_rlo_i5(asm_thumb_t *as, uint rlo_dest, uint rlo_base, uint byte_offset) + { asm_thumb_format_9_10(as, ASM_THUMB_FORMAT_9_LDR | ASM_THUMB_FORMAT_9_BYTE_TRANSFER , rlo_dest, rlo_base, byte_offset); } + +// TODO convert these to above format style + +void asm_thumb_mov_reg_reg(asm_thumb_t *as, uint reg_dest, uint reg_src); void asm_thumb_movw_reg_i16(asm_thumb_t *as, uint reg_dest, int i16_src); void asm_thumb_movt_reg_i16(asm_thumb_t *as, uint reg_dest, int i16_src); -void asm_thumb_mov_reg_reg(asm_thumb_t *as, uint reg_dest, uint reg_src); -void asm_thumb_add_rlo_rlo_rlo(asm_thumb_t *as, uint rlo_dest, uint rlo_src_a, uint rlo_src_b); -void asm_thumb_subs_rlo_rlo_i3(asm_thumb_t *as, uint rlo_dest, uint rlo_src, int i3_src); -void asm_thumb_cmp_reg_reg(asm_thumb_t *as, uint rlo_a, uint rlo_b); -void asm_thumb_cmp_rlo_i8(asm_thumb_t *as, uint rlo, int i8); -void asm_thumb_ldr_rlo_rlo_i5(asm_thumb_t *as, uint rlo_dest, uint rlo_base, uint word_offset); -void asm_thumb_str_rlo_rlo_i5(asm_thumb_t *as, uint rlo_src, uint rlo_base, uint word_offset); void asm_thumb_ite_ge(asm_thumb_t *as); void asm_thumb_b_n(asm_thumb_t *as, uint label); void asm_thumb_bcc_n(asm_thumb_t *as, int cond, uint label); |