diff options
Diffstat (limited to 'target/arm/t16.decode')
| -rw-r--r-- | target/arm/t16.decode | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/target/arm/t16.decode b/target/arm/t16.decode index 83fe436..1cf7978 100644 --- a/target/arm/t16.decode +++ b/target/arm/t16.decode @@ -24,6 +24,7 @@ &s_rri_rot !extern s rn rd imm rot &s_rrrr !extern s rd rn rm ra &ldst_rr !extern p w u rn rt rm shimm shtype +&ldst_ri !extern p w u rn rt imm # Set S if the instruction is outside of an IT block. %s !function=t16_setflags @@ -69,3 +70,35 @@ LDR_rr 0101 100 ... ... ... @ldst_rr LDRH_rr 0101 101 ... ... ... @ldst_rr LDRB_rr 0101 110 ... ... ... @ldst_rr LDRSH_rr 0101 111 ... ... ... @ldst_rr + +# Load/store word/byte (immediate offset) + +%imm5_6x4 6:5 !function=times_4 + +@ldst_ri_1 ..... imm:5 rn:3 rt:3 \ + &ldst_ri p=1 w=0 u=1 +@ldst_ri_4 ..... ..... rn:3 rt:3 \ + &ldst_ri p=1 w=0 u=1 imm=%imm5_6x4 + +STR_ri 01100 ..... ... ... @ldst_ri_4 +LDR_ri 01101 ..... ... ... @ldst_ri_4 +STRB_ri 01110 ..... ... ... @ldst_ri_1 +LDRB_ri 01111 ..... ... ... @ldst_ri_1 + +# Load/store halfword (immediate offset) + +%imm5_6x2 6:5 !function=times_2 +@ldst_ri_2 ..... ..... rn:3 rt:3 \ + &ldst_ri p=1 w=0 u=1 imm=%imm5_6x2 + +STRH_ri 10000 ..... ... ... @ldst_ri_2 +LDRH_ri 10001 ..... ... ... @ldst_ri_2 + +# Load/store (SP-relative) + +%imm8_0x4 0:8 !function=times_4 +@ldst_spec_i ..... rt:3 ........ \ + &ldst_ri p=1 w=0 u=1 imm=%imm8_0x4 + +STR_ri 10010 ... ........ @ldst_spec_i rn=13 +LDR_ri 10011 ... ........ @ldst_spec_i rn=13 |