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change sdahack to use la instruction (#114) 

Co-authored-by: Pheenoh <pheenoh@gmail.com>
This commit is contained in:
lepelog 2021-02-13 01:50:24 +01:00 committed by GitHub
parent aff4c171fc
commit e08abacc1d
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 8 deletions
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14
tools/splitter/split.py
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@ -46,19 +46,17 @@ def comment_out(line: Line) -> Line:
def fix_sda_base_add(line: Line) -> Line:
if 'SDA' in line.body.operands[2]:
ops = line.body.operands[2].split('-')
lbl_addr = int(ops[0][4:], 16)
lbl_name = ops[0]
if ops[1] == '_SDA_BASE_':
sda_addr = SDA_BASE
sda_reg = 'r13'
elif ops[1] == '_SDA2_BASE_':
sda_addr = SDA2_BASE
sda_reg = 'r2'
else:
logger.error('Unknown SDABASE!')
return line
line.content.append(
BlockComment(f'SDA HACK; original: {line.body.operands[2]}')
)
line.body.operands[2] = f'0x{lbl_addr:X} - 0x{sda_addr:X}'
line.body.opcode = 'la'
line.body.operands = [line.body.operands[0], f'{lbl_name}({sda_reg})']
return line
QUANT_REG_RE = re.compile(r'qr(\d+)')
@ -238,7 +236,7 @@ def split(
loaded_labels = set()
for line in lines:
if isinstance(line.body, Instruction):
if line.body.opcode[0] in {'l', 's'}: # load and store instructions, ish
if line.body.opcode[0] in {'l', 's'} or line.body.opcode == 'addi': # load and store instructions, ish. Also addi for loading SDA addresses
loaded_labels |= set(find_labels_in_operands(line.body.operands))
# -- find all defined functions and split them