Incorrect `beq` jump address when comment lines are present

[chmousset]

Given these two example ASM files:

With comments:

addi s0 x0 10  # 0x00

loop:
	addi s0 s0 -1  # 0x04
	# comment
	beq s1 x0 out  # 0x08  # should jump to 0x08 + 8 = 0x10
	# Another comment
	beq x0 x0 loop  # 0x0C # should jump to 0x0C - 8 = 0x04

out:
	beq x0 x0 out # 10

Without comments:

addi s0 x0 10  # 0x00

loop:
	addi s0 s0 -1  # 0x04
	beq s1 x0 out  # 0x08  # should jump to 0x08 + 8 = 0x10
	beq x0 x0 loop  # 0x0C # should jump to 0x0C - 8 = 0x04

out:
	beq x0 x0 out # 10

the parser should give the same exact output. However, the respective outputs are:
['0x00a00413', '0xfff40413', '0x00048663', '0xfe0008e3', '0x00000063']
['0x00a00413', '0xfff40413', '0x00048463', '0xfe000ce3', '0x00000063']

When comments are present, relative jumps are respectively 12 and -16 instead of +8 and -8.
This seems to indicate that comments, although (correctly) not generating instructions, have an impact in the jump offset calculation.