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[gamecode] Correct the widths for load, store and lea

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The different addressing modes complicate the width calculations, and
lea is particularly fun in that it doesn't care what the width of value
is.
This commit is contained in:
Bill Currie 2022-01-20 16:33:04 +09:00
parent b2ddae46b2
commit 854e45485a
1 changed files with 13 additions and 3 deletions
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16
libs/gamecode/opcodes.py
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@ -42,6 +42,13 @@ address_types = [
"ev_ptr, ev_short",
"ev_ptr, ev_int",
]
address_widths = [
[ "1, 0", "1, 1", "1, 0", "1, 1", ],
[ "2, 0", "1, 1", "1, 0", "1, 1", ],
[ "3, 0", "1, 1", "1, 0", "1, 1", ],
[ "4, 0", "1, 1", "1, 0", "1, 1", ],
[ "-1, 0", "1, 1", "1, 0", "1, 1", ],
]
#store, pop and lea
store_fmt = [
"%ga",
@ -192,12 +199,13 @@ lea_formats = {
"mnemonic": "lea",
"opname": "lea",
"format": "{lea_fmt[mm]}, %gc",
"widths": "0, 0, 1",
"widths": "{lea_widths[mm]}, 1",
"types": "{lea_types[mm]}, ev_ptr",
"args": {
"op_mode": address_mode,
"lea_fmt": store_fmt,
"lea_types": address_types,
"lea_widths": address_widths[4],
},
}
load_formats = {
@ -205,12 +213,13 @@ load_formats = {
"mnemonic": "load",
"opname": "load",
"format": "{load_fmt[mm]}, %gc",
"widths": "0, 0, {ss+1}",
"widths": "{load_widths[ss][mm]}, {ss+1}",
"types": "{load_types[mm]}, ev_void",
"args": {
"op_mode": address_mode,
"load_fmt": load_fmt,
"load_types": address_types,
"load_widths": address_widths,
},
}
mathops_formats = {
@ -348,13 +357,14 @@ store_formats = {
"mnemonic": "{store_op[mm]}",
"opname": "{store_op[mm]}",
"format": "%Gc, {store_fmt[mm]}",
"widths": "{ss+1}, 0, {ss+1}",
"widths": "{store_widths[ss][mm]}, {ss+1}",
"types": "{store_types[mm]}, ev_void",
"args": {
"op_mode": address_mode,
"store_fmt": store_fmt,
"store_op": ["assign", "store", "store", "store"],
"store_types": address_types,
"store_widths": address_widths,
},
}
string_formats = {