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Added SIY addressing mode support

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Added SIY add mode, and Updated the number of parameters for few of the instructions of RS-a mode
This commit is contained in:
niravthakkar 2017-01-03 15:51:23 +05:30 committed by GitHub
parent a13e120fd5
commit dd6ecfa73d
1 changed files with 31 additions and 12 deletions
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37
dynasm/dasm_s390x.lua
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@ -1061,20 +1061,20 @@ map_op = {
spm_2 = "000000000400RR",
ssar_2 = "0000b2250000RRE",
ssair_2 = "0000b99f0000RRE",
slda_3 = "00008f000000RS-a",
sldl_3 = "00008d000000RS-a",
sla_3 = "00008b000000RS-a",
slda_2 = "00008f000000RS-a",
sldl_2 = "00008d000000RS-a",
sla_2 = "00008b000000RS-a",
slak_3 = "eb00000000ddRSY-a",
slag_3 = "eb000000000bRSY-a",
sll_3 = "000089000000RS-a",
sll_2 = "000089000000RS-a",
sllk_3 = "eb00000000dfRSY-a",
sllg_3 = "eb000000000dRSY-a",
srda_3 = "00008e000000RS-a",
srdl_3 = "00008c000000RS-a",
sra_3 = "00008a000000RS-a",
srda_2 = "00008e000000RS-a",
srdl_2 = "00008c000000RS-a",
sra_2 = "00008a000000RS-a",
srak_3 = "eb00000000dcRSY-a",
srag_3 = "eb000000000aRSY-a",
srl_3 = "000088000000RS-a",
srl_2 = "000088000000RS-a",
srlk_3 = "eb00000000deRSY-a",
srlg_3 = "eb000000000cRSY-a",
sqxbr_2 = "0000b3160000RRE",
@ -1225,6 +1225,9 @@ map_op = {
brxhg_3 = "ec0000000044RIE-e",
-- SI
ni_2 = "000094000000SI",
tm_2 = "000091000000SI",
-- SIY
tmy_2 = "eb0000000051SIY",
-- RXF
madb_3 = "ed000000001eRXF",
-- RRD
@ -1291,11 +1294,17 @@ local function parse_template(params, template, nparams, pos)
local mode, n, s = parse_label(params[2])
waction("REL_"..mode, n, s)
elseif p == "RS-a" then
if (params[3]) then
local d, b, a = parse_mem_b(params[3])
op1 = op1 + shl(parse_reg(params[1]), 4) + parse_reg(params[2])
op2 = op2 + shl(b, 12) + d
else
local d, b, a = parse_mem_b(params[2])
op1 = op1 + shl(parse_reg(params[1]), 4)
op2 = op2 + shl(b, 12) + d
end
wputhw(op1); wputhw(op2)
if a then a() end -- a() emits action.
if a then a() end
elseif p == "RSY-a" then
local d, b, a = parse_mem_by(params[3])
op0 = op0 + shl(parse_reg(params[1]), 4) + parse_reg(params[2])
@ -1445,6 +1454,16 @@ local function parse_template(params, template, nparams, pos)
op2 = op2 + shl(b, 12) + d
wputhw(op1); wputhw(op2)
if a then a() end
elseif p == "SIY" then
local imm8,iact = parse_imm8(params[2])
op0 = op0 + shl(imm8, 8)
wputhw(op0);
if iact then iact() end
local d, b, a = parse_mem_by(params[1])
op1 = op1 + shl(b, 12) + band(d, 0xfff)
op2 = op2 + band(shr(d, 4), 0xff00)
wputhw(op1); wputhw(op2)
if a then a() end
else
werror("unrecognized encoding")
end