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https://github.com/notwa/mm
synced 2024-05-18 05:23:22 -07:00
simplify format_out arguments
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05b0e8aa8f
commit
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@ -985,7 +985,7 @@ function Parser:format_in(informat)
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return args
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end
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function Parser:format_out(outformat, first, args, const, formatconst)
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function Parser:format_out_raw(outformat, first, args, const, formatconst)
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local lookup = {
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[1]=self.dumper.add_instruction_j,
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[3]=self.dumper.add_instruction_i,
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@ -1029,6 +1029,10 @@ function Parser:format_out(outformat, first, args, const, formatconst)
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f(self.dumper, self.line, first, out[1], out[2], out[3], out[4], out[5])
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end
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function Parser:format_out(t, args)
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self:format_out_raw(t[3], t[1], args, t[4], t[5])
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end
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local overrides = {}
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function overrides.LI(self, name)
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@ -1050,19 +1054,19 @@ function overrides.LI(self, name)
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if im[2] >= 0x10000 and im[2] <= 0xFFFF8000 then
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args.rs = args.rt
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args.immediate = {'UPPER', im}
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self:format_out(lui[3], lui[1], args, lui[4], lui[5])
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self:format_out(lui, args)
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if im[2] % 0x10000 ~= 0 then
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args.immediate = {'LOWER', im}
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self:format_out(ori[3], ori[1], args, ori[4], ori[5])
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self:format_out(ori, args)
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end
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elseif im[2] >= 0x8000 and im[2] < 0x10000 then
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args.rs = 'R0'
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args.immediate = {'LOWER', im}
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self:format_out(ori[3], ori[1], args, ori[4], ori[5])
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self:format_out(ori, args)
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else
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args.rs = 'R0'
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args.immediate = {'LOWER', im}
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self:format_out(addiu[3], addiu[1], args, addiu[4], addiu[5])
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self:format_out(addiu, args)
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end
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end
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@ -1076,9 +1080,9 @@ function overrides.LA(self, name)
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args.rs = args.rt
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args.immediate = {'UPPEROFF', im}
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self:format_out(lui[3], lui[1], args, lui[4], lui[5])
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self:format_out(lui, args)
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args.immediate = {'LOWER', im}
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self:format_out(addiu[3], addiu[1], args, addiu[4], addiu[5])
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self:format_out(addiu, args)
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end
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function overrides.PUSH(self, name)
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@ -1110,25 +1114,25 @@ function overrides.PUSH(self, name)
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args.rt = 'SP'
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args.rs = 'SP'
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args.immediate = {'NEGATE', {'NUM', #stack*4}}
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self:format_out(addi[3], addi[1], args, addi[4], addi[5])
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self:format_out(addi, args)
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end
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args.base = 'SP'
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for i, r in ipairs(stack) do
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args.rt = r
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if r ~= '' then
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args.offset = {'NUM', (i - 1)*4}
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self:format_out(w[3], w[1], args, w[4], w[5])
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self:format_out(w, args)
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end
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end
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if name == 'JPOP' then
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args.rs = 'RA'
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self:format_out(jr[3], jr[1], args, jr[4], jr[5])
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self:format_out(jr, args)
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end
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if name == 'POP' or name == 'JPOP' then
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args.rt = 'SP'
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args.rs = 'SP'
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args.immediate = {'NUM', #stack*4}
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self:format_out(addi[3], addi[1], args, addi[4], addi[5])
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self:format_out(addi, args)
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end
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end
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overrides.POP = overrides.PUSH
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@ -1143,10 +1147,10 @@ function overrides.NAND(self, name)
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args.rs = self:register()
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self:optional_comma()
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args.rt = self:register()
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self:format_out(and_[3], and_[1], args, and_[4], and_[5])
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self:format_out(and_, args)
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args.rs = args.rd
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args.rt = 'R0'
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self:format_out(nor[3], nor[1], args, nor[4], nor[5])
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self:format_out(nor, args)
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end
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function overrides.NANDI(self, name)
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@ -1174,11 +1178,11 @@ function overrides.NORI(self, name)
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args.rs = self:register()
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self:optional_comma()
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args.immediate = self:const()
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self:format_out(ori[3], ori[1], args, ori[4], ori[5])
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self:format_out(ori, args)
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args.rd = args.rt
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args.rs = args.rt
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args.rt = 'R0'
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self:format_out(nor[3], nor[1], args, nor[4], nor[5])
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self:format_out(nor, args)
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end
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function overrides.ROL(self, name)
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@ -1198,14 +1202,14 @@ function overrides.ROL(self, name)
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if args.rd == args.rt and args.rd ~= 'R0' then
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self:error('registers cannot be the same')
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end
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self:format_out(sll[3], sll[1], args, sll[4], sll[5])
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self:format_out(sll, args)
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args.rd = 'AT'
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args.immediate = {'NUM', 32 - args.immediate[2]}
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self:format_out(srl[3], srl[1], args, srl[4], srl[5])
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self:format_out(srl, args)
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args.rd = left
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args.rs = left
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args.rt = 'AT'
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self:format_out(or_[3], or_[1], args, or_[4], or_[5])
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self:format_out(or_, args)
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end
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function overrides.ROR(self, name)
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@ -1225,14 +1229,14 @@ function overrides.ROR(self, name)
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if args.rd == args.rt and args.rd ~= 'R0' then
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self:error('registers cannot be the same')
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end
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self:format_out(srl[3], srl[1], args, srl[4], srl[5])
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self:format_out(srl, args)
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args.rd = 'AT'
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args.immediate = {'NUM', 32 - args.immediate[2]}
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self:format_out(sll[3], sll[1], args, sll[4], sll[5])
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self:format_out(sll, args)
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args.rd = right
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args.rs = right
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args.rt = 'AT'
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self:format_out(or_[3], or_[1], args, or_[4], or_[5])
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self:format_out(or_, args)
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end
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function overrides.JR(self, name)
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@ -1243,7 +1247,7 @@ function overrides.JR(self, name)
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else
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args.rs = self:register()
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end
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self:format_out(jr[3], jr[1], args, jr[4], jr[5])
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self:format_out(jr, args)
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end
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local branch_basics = {
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@ -1271,10 +1275,10 @@ function overrides.BEQI(self, name)
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args.rt = 'AT'
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args.rs = 'R0'
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self:format_out(addiu[3], addiu[1], args, addiu[4], addiu[5])
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self:format_out(addiu, args)
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args.rs = reg
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self:format_out(branch[3], branch[1], args, branch[4], branch[5])
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self:format_out(branch, args)
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end
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overrides.BNEI = overrides.BEQI
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@ -1293,11 +1297,11 @@ function overrides.BLTI(self, name)
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end
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args.rt = 'AT'
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self:format_out(slti[3], slti[1], args, slti[4], slti[5])
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self:format_out(slti, args)
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args.rs = 'AT'
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args.rt = 'R0'
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self:format_out(branch[3], branch[1], args, branch[4], branch[5])
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self:format_out(branch, args)
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end
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overrides.BGEI = overrides.BLTI
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@ -1320,7 +1324,7 @@ function overrides.BLEI(self, name)
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args.rt = 'AT'
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args.rs = 'R0'
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self:format_out(addiu[3], addiu[1], args, addiu[4], addiu[5])
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self:format_out(addiu, args)
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if name == 'BLEI' then
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args.offset = offset
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@ -1328,15 +1332,15 @@ function overrides.BLEI(self, name)
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args.offset = 2 -- branch to delay slot of the next branch
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end
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args.rs = reg
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self:format_out(beq[3], beq[1], args, beq[4], beq[5])
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self:format_out(beq, args)
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args.rd = 'AT'
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self:format_out(slt[3], slt[1], args, slt[4], slt[5])
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self:format_out(slt, args)
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args.rs = 'AT'
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args.rt = 'R0'
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args.offset = offset
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self:format_out(branch[3], branch[1], args, branch[4], branch[5])
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self:format_out(branch, args)
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end
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overrides.BGTI = overrides.BLEI
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@ -1362,7 +1366,7 @@ function Parser:instruction()
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local lui_args = {}
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lui_args.immediate = {'UPPEROFF', o}
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lui_args.rt = 'AT'
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self:format_out(lui[3], lui[1], lui_args, lui[4], lui[5])
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self:format_out(lui, lui_args)
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args.offset = {'LOWER', o}
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args.base = 'AT'
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else
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@ -1373,10 +1377,10 @@ function Parser:instruction()
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self:optional_comma()
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args.base = self:deref()
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end
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self:format_out(h[3], h[1], args, h[4], h[5])
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self:format_out(h, args)
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elseif h[2] ~= nil then
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args = self:format_in(h[2])
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self:format_out(h[3], h[1], args, h[4], h[5])
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self:format_out(h, args)
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else
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self:error('unimplemented instruction')
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end
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