SM83: Add tests for jump instructions

msinger · Feb 21, 2021 · 9fd9636 · 9fd9636
1 parent 3fb36e8
commit 9fd9636
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Showing 2 changed files with 97 additions and 1 deletion.
diff --git a/sim/Makefile.am b/sim/Makefile.am
@@ -32,7 +32,8 @@ test/sm83/ld16.sh \
 test/sm83/add8.sh \
 test/sm83/add16.sh \
 test/sm83/rot.sh \
-test/sm83/bit.sh
+test/sm83/bit.sh \
+test/sm83/jp.sh
 
 TEST_EXTENSIONS = .sh
 SH_LOG_COMPILER = $(SH)

diff --git a/sim/test/sm83/jp.sh b/sim/test/sm83/jp.sh
@@ -0,0 +1,95 @@
+#!/bin/sh
+
+# Tests for jump instructions on simulated SM83 CPU:
+#  JP nn
+#  JP cc, nn
+#  JR e
+#  JR cc, e
+#  JP (HL)
+
+. test/sm83/functions
+
+set -e
+
+TEST=sm83_sim_jp
+
+simulate 204 <<"EOF"
+# @tick #0
+# Preset register HL and AF
+# LD HL, $1234; XOR A
+21 34 12 af
+# 16 ticks
+
+# @tick #16
+# JP (HL); INC A
+e9 3c
+# 4 ticks
+
+# @tick #20
+# JP NZ, $2345; INC A; JP NZ, $1000; { unreachable: INC A }
+a1234 c2 45 23  3c  c2 00 10  3c
+# 32 ticks
+
+# @tick #52
+# JP C, $1000; SCF; JP NC, $1234; JP C, $0b00; { unreachable: INC A }
+a1000 da 00 10  37  d2 34 12  da 00 0b  3c
+# 44 ticks
+
+# @tick #96
+# JP $0d12; { unreachable: INC A }
+a0b00 c3 12 0d  3c
+# ticks 16
+
+# @tick #112
+# { unreachable: INC A; INC A }; JR Z, $20; JR NC, $30; CCF; JR C, $40; JR NC, $01; { unreachable: INC A }; XOR A; JR Z, $80
+a0d10 3c 3c  28 20  30 30  3f  38 40  30 01  3c  af  28 80
+# 56 ticks
+
+# @tick #168
+# { unreachable: INC A }; INC A; JR $00; DEC A; JR $fe; { unreachable: INC A }
+a0c9e 3c 3c  18 00  3d  18 fe  3c
+# 32 ticks
+EOF
+
+compare_mem <<"EOF"
+0000000    3421    af12    3ce9    0000    0000    0000    0000    0000
+0000010    0000    0000    0000    0000    0000    0000    0000    0000
+*
+0000b00    12c3    3c0d    0000    0000    0000    0000    0000    0000
+0000b10    0000    0000    0000    0000    0000    0000    0000    0000
+*
+0000c90    0000    0000    0000    0000    0000    0000    0000    3c3c
+0000ca0    0018    183d    3cfe    0000    0000    0000    0000    0000
+0000cb0    0000    0000    0000    0000    0000    0000    0000    0000
+*
+0000d10    3c3c    2028    3030    383f    3040    3c01    28af    0080
+0000d20    0000    0000    0000    0000    0000    0000    0000    0000
+*
+0001000    00da    3710    34d2    da12    0b00    003c    0000    0000
+0001010    0000    0000    0000    0000    0000    0000    0000    0000
+*
+0001230    0000    0000    45c2    3c23    00c2    3c10    0000    0000
+0001240    0000    0000    0000    0000    0000    0000    0000    0000
+*
+0010000
+EOF
+
+grep_output <<"EOF"
+# Check "JP (HL)"
+23@posedge     M=1 T=4    .* ADR=0x1234 .* PC=0x1235 .* AF=0x0080
+
+# Check "JP cc, nn"
+55@posedge     M=1 T=4    .* ADR=0x1000 .* PC=0x1001 .* AF=0x0100
+99@posedge     M=1 T=4    .* ADR=0x0b00 .* PC=0x0b01 .* AF=0x0110
+
+# Check "JP nn"
+115@posedge     M=1 T=4    .* ADR=0x0d12 .* PC=0x0d13 .* AF=0x0110
+
+# Check "JR cc, e"
+155@posedge     M=1 T=4    .* ADR=0x0d1c .* PC=0x0d1d .* AF=0x0100
+171@posedge     M=1 T=4    .* ADR=0x0c9f .* PC=0x0ca0 .* AF=0x0080
+
+# Check "JR e"
+187@posedge     M=1 T=4    .* ADR=0x0ca2 .* PC=0x0ca3 .* AF=0x0100
+203@posedge     M=1 T=4    .* ADR=0x0ca3 .* PC=0x0ca4 .* AF=0x00c0
+EOF