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passes quick tests for: lui, addi, add, sub, and, or, xor, andi. jump works but does not link

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Brendan Haines
2020-10-11 23:03:14 -06:00
parent 3fbd96ca27
commit 2c24c19a72
5 changed files with 447 additions and 217 deletions
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123
test/test.S
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@ -1,88 +1,105 @@
.global _start
.text
_start:
add x1, x0, x0
add x2, x0, x0
add x3, x0, x0
add x4, x0, x0
add x5, x0, x0
add x6, x0, x0
add x7, x0, x0
add x8, x0, x0
add x9, x0, x0
add x10, x0, x0
add x11, x0, x0
add x12, x0, x0
add x13, x0, x0
add x14, x0, x0
add x15, x0, x0
add x16, x0, x0
add x17, x0, x0
add x18, x0, x0
add x19, x0, x0
add x20, x0, x0
add x21, x0, x0
add x22, x0, x0
add x23, x0, x0
add x24, x0, x0
add x25, x0, x0
add x26, x0, x0
add x27, x0, x0
add x28, x0, x0
add x29, x0, x0
add x30, x0, x0
add x31, x0, x0
# NOTE: nop required because cpu currently does not detect when something is needed from a later stage of the pipeline.
# 4 clocks allows one instruction to finish before the next starts
# 4 clocks allows one instruction to finish before the next reads the regfile
# AUIPC
# JAL
# JALR
# XORI
# ORI
# SLLI
# SRLI
# SRAI
# SLTI
# SLTUI
# SLL
# SRL
# SRA
# SLT
# SLTU
# lui
nop
nop
nop
lui x1, 0xfedcb # x1 = 0xfedcb000
nop
nop
nop
# addi
nop
nop
nop
addi x1, x1, 0x789 # x1 = 0xfedcb789
addi x2, x0, -1 # x2 = 0xffffffff
nop
nop
addi x3, x1, -0x777 # x3 = 0xfedcb012
nop
nop
nop
# add
nop
nop
nop
add x4, x1, x2 # x4 = 0xfedcb788
nop
nop
nop
# sub
sub x5, x1, x3 # x5 = 0x00000777
nop
nop
nop
add x5, x1, x3 # x5 = 0x00000777 incorrect
# and
nop
nop
nop
and x6, x1, x2 # x6 = 0xfedcb789
and x7, x1, x0 # x7 = 0x00000000
and x8, x4, x3 # x8 = 0xfedcb002 incorrect
and x8, x4, x3 # x8 = 0xfedcb000
nop
nop
nop
# or
nop
nop
nop
or x9, x1, x2 # x9 = 0xffffffff
or x10, x1, x0 # x10 = 0xfedcb789
or x11, x4, x3 # x11 = 0x0xfedcb798 incorrect
or x11, x4, x3 # x11 = 0x0xfedcb79a
nop
nop
nop
# xor
xor x12, x1, x2 # x12 = 0x01234876
xor x13, x1, x1 # x13 = 0x00000000
xor x14, x0, x2 # x14 = 0xffffffff
nop
nop
nop
# andi
andi x15, x2, -1348 # x15 = 0xfffffabc -1348 = 0xfffffabc
andi x16, x2, 0x123 # x16 = 0x00000123
andi x17, x1, -1645 # x17 = 0xfedcb181 -1645 = 0xfffff993
nop
nop
nop
# # ori
# ori x9, x1, x2 # x9 = 0xffffffff
# ori x10, x1, x0 # x10 = 0xfedcb789
# ori x11, x4, x3 # x11 = 0x0xfedcb79a
# nop
# nop
# nop
# # xori
# xori x12, x1, x2 # x12 = 0x01234876
# xori x13, x1, x1 # x13 = 0x00000000
# xori x14, x0, x2 # x14 = 0xffffffff
# nop
# nop
# nop
# counter and infinite loop
nop
nop
nop