44 lines
1.8 KiB
JSON
44 lines
1.8 KiB
JSON
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{
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"name":"femto16",
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"width":16,
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"vars":{
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"reg":{"bits":3, "toks":["ax", "bx", "cx", "dx", "ex", "fx", "sp", "ip"]},
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"unop":{"bits":3, "toks":["zero","loada","inc","dec","asl","lsr","rol","ror"]},
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"binop":{"bits":3, "toks":["or","and","xor","mov","add","sub","adc","sbb"]},
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"imm5":{"bits":5},
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"imm8":{"bits":8},
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"imm16":{"bits":16},
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"rel8":{"bits":8, "iprel":true, "ipofs":1}
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},
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"rules":[
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{"fmt":"~binop ~reg,~reg", "bits":["00000",1,"01",0,2]},
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{"fmt":"~unop ~reg", "bits":["00000",1,"00",0,"000"]},
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{"fmt":"~binop ~reg,[~reg]", "bits":["00001",1,"01",0,2]},
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{"fmt":"mov [~reg],~reg", "bits":["01010",1,"00000",0]},
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{"fmt":"mov ~reg,[~imm8]", "bits":["00101",0,1]},
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{"fmt":"mov [~imm8],~reg", "bits":["00110",1,0]},
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{"fmt":"~binop ~reg,#~imm8", "bits":["11",0,1,2]},
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{"fmt":"~binop ~reg,@~imm16","bits":["00011",1,"01",0,"000",2]},
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{"fmt":"~binop ~reg,[~imm16]", "bits":["01011",1,"01",0,"000",2]},
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{"fmt":"push ~reg", "bits":["01010",0,"00000","110"]},
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{"fmt":"pop ~reg", "bits":["01001",0,"00001","110"]},
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{"fmt":"rts", "bits":["01001","111","00001","110"]},
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{"fmt":"mov ~reg,[~reg+~imm5]", "bits":["01001",0,2,1]},
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{"fmt":"jsr ~reg", "bits":["01110","111","00",0,"110"]},
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{"fmt":"jsrex ~imm16", "bits":["0001110001011000",0,"0111011100100110"]},
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{"fmt":"jmp ~imm16", "bits":["0001111101011000",0]},
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{"fmt":"bcc ~rel8", "bits":["10000001",0]},
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{"fmt":"bcs ~rel8", "bits":["10001001",0]},
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{"fmt":"bnz ~rel8", "bits":["10000010",0]},
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{"fmt":"bz ~rel8", "bits":["10001010",0]},
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{"fmt":"bpl ~rel8", "bits":["10000100",0]},
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{"fmt":"bmi ~rel8", "bits":["10001100",0]},
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{"fmt":"reset", "bits":["1011100011111111"]}
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]
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}
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