From c2d559d927c0f1ace1cbfef698163525c2ea332c Mon Sep 17 00:00:00 2001 From: Alejandro Soto Date: Tue, 8 Nov 2022 21:07:22 -0600 Subject: Add sim: sdram --- tb/sim/sdram.S | 14 ++++++++++++++ tb/sim/sdram.py | 8 ++++++++ 2 files changed, 22 insertions(+) create mode 100644 tb/sim/sdram.S create mode 100644 tb/sim/sdram.py (limited to 'tb/sim') diff --git a/tb/sim/sdram.S b/tb/sim/sdram.S new file mode 100644 index 0000000..1efb58e --- /dev/null +++ b/tb/sim/sdram.S @@ -0,0 +1,14 @@ +.global reset + +reset: + ldr r0, =0x1000 + ldr r1, =0x2000 + mov r2, #0 + + .loop: + str r2, [r0], #4 + add r2, r2, #1 + cmp r0, r1 + bne .loop + + mov pc, lr diff --git a/tb/sim/sdram.py b/tb/sim/sdram.py new file mode 100644 index 0000000..2225941 --- /dev/null +++ b/tb/sim/sdram.py @@ -0,0 +1,8 @@ +START = 0x0000_1000 +END = 0x0000_2000 + +cycles = 15000 +mem_dumps = [range(START, END)] + +def final(): + assert_mem(START, list(range(0, (END - START) >> 2))) -- cgit v1.2.3