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/************************** tests_formats.as ********************************
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* Author: Agner Fog
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* date created: 2021-07-13
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* last modified: 2021-08-04
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* Version: 1.11
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* Project: ForwardCom Test suite, assembly code
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* Description: Test the different instruction formats
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*
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* This test program will test all instruction formats for general purpose
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* registers, including formats for multi-format instructions, single-format
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* instructions, and jump instructions.
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*
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* Copyright 2021 GNU General Public License v. 3 http://www.gnu.org/licenses
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******************************************************************************/
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// Library functions in libc_light.li
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extern _printf: function reguse=0xF,0 // write formatted string to stdout
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extern _sprintf: function reguse=0xF,0 // write formatted string to string buffer
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const section read ip // read-only data section
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// Text strings:
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introtext: int8 "\nForwardCom test suite\nTest all instruction formats for general purpose registers." // intro text,
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int8 "\nPress Run to continue\n", 0
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newline: int8 "\n", 0 // newline
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press_run: int8 "\nPress Run to continue", 0
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multiformat: int8 "\nMultiformat:", 0
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singleformat: int8 "\nSingle format:", 0
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jumpformat: int8 "\nJump format:", 0
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// format strings used by print_result
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format1: int8 "%1X%c", 0
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format2: int8 "\n%10s%6c", 0
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// arbitrary test data
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%T = 0x7BC30956
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T1: int32 T, T+1, T+2, T+3, T+4, T+5, T+6, T+7
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const end
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code1 section execute // code section
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__entry_point function public
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_main function public
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// print intro text and heading
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int64 r0 = address [introtext] // intro text
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call _printf // print string
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breakpoint
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int64 r0 = address [multiformat]
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call _printf // print string
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// disable error trap for unknown instructions and array bounds violation
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int r1 = 5
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int capab2 = write_capabilities(r1, 0)
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// arbitrary test data
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%A = 0x4956D5FE
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%B = 0xE85B0AA1
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// Test format 0.0 A Multiformat RD = f2(RS, RT)
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T00A:
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int32 r20 = A
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int32 r21 = B
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int32 r1 = r20 + r21
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int32 r0 = r1 == (A + B & 0xFFFFFFFF)
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int r1 = 0x00A
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call print_result
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// Test format 0.1 B Multiformat RD = f2(RS, IM1)
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T01B:
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int32 r1 = r20 + 0x59
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int32 r2 = r1 ^ - 0x78
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int32 r0 = r2 == ((A + 0x59 ^ -0x78) & 0xFFFFFFFF)
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int r1 = 0x01B
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call print_result
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// Test format 0.8 A Multiformat RD = f2(RD, [RS+RT*OS])
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T08A:
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int64 r1 = address [T1]
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int r2 = 2
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int r3 = r20
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int32 r3 += [r1 + r2*4]
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int32 r4 = A + T + 2
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int32 r0 = r3 == r4
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int r1 = 0x08A
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call print_result
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// Test format 0.9 B Multiformat RD = f2(RD, [RS+IM1*OS])
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T09B:
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int64 r1 = address [T1]
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int r3 = r20
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int32 r3 -= [r1 + 12]
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int32 r4 = A - (T + 3)
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int32 r0 = r3 == r4
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int r1 = 0x09B
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call print_result
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// Test format 2.0.0 E Multiformat RD = f2(RT, [RS+IM2])
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T200E:
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int64 r1 = address [T1 + 200]
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int32 r3 = r20 + [r1 - 200 + 8]
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int32 r4 = A + T + 2
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int32 r0 = r3 == r4
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int r1 = 0x200E
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call print_result
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// Test format 2.0.1 E Multiformat RD = f2(RU, [RS+RT+IM2])
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T201E:
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int64 r1 = address [T1 - 200]
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int r2 = 4
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int32 r3 = r20 + [r1 + r2 + 200]
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int32 r4 = A + T + 1
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int32 r0 = r3 == r4
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int r1 = 0x201E
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call print_result
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// Test format 2.0.2 E Multiformat RD = f2(RU, [RS+RT*OS+IM2])
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T202E:
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int64 r1 = address [T1 - 200]
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int r2 = 4
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int32 r3 = r20 + [r1 + r2*4 + 200]
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int32 r0 = r3 == A + T + 4
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int r1 = 0x202E
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call print_result
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// Test format 2.0.3 E Multiformat RD = f2(RU, [RS+RT*OS]), limit = IM2
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T203E:
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int64 r1 = address [T1]
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int r2 = 4
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int32 r3 = r20 + [r1 + r2*4], limit = 4
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int32 r0 = r3 == A + T + 4
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int r4 = read_perf(perf16, 3) // counter for array overflow
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int r0 = r4 == 0 && r0
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int32 r3 = r20 + [r1 + r2*4], limit = 3 // exceed limit
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int r4 = read_perf(perf16, 3) // counter should show array overflow
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int r0 = r4 == 1 && r0
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int r4 = read_perf(perf16, 0) // reset counter
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int r1 = 0x203E
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call print_result
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// Test format 2.0.5 E Multiformat RD = f3(RU, [RS+RT*OS+IM2], IM3).
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T205E:
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int64 r1 = address [T1]
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int r2 = 2
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int32 r4 = [r1] + 0x10
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int32 r0 = r4 == (T + 0x10 & 0xFFFFFFFF)
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int32 r4 = [r1 + 4*r2 + 8] + 0x10
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int32 r0 = r4 == (T + 4 + 0x10 & 0xFFFFFFFF) && r0
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int32 r3 = B
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int32 r4 = add_add(r3, [r1 + 4*r2 + 8], 0x25)
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int32 r0 = r4 == (B + T + 4 + 0x25 & 0xFFFFFFFF) && r0
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int r1 = 0x205E
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call print_result
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// Test format 2.0.6 E Multiformat RD = f3(RU, RS, RT)
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T206E:
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int32 r2 = 0x20000
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int32 r3 = r20 + r21 - r2
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int32 r0 = r3 == (A + B - 0x20000 & 0xFFFFFFFF)
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int r1 = 0x206E
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call print_result
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// Test format 2.0.7 E Multiformat RD = f3(RS, RT, IM2 << IM3)
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T207E:
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int32 r3 = r20 + 0x78000000 // shifted constant
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int32 r0 = r3 == (A + 0x78000000 & 0xFFFFFFFF)
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int32 r3 = r20 - r21 + 0x6A00 // constant not shifted because IM3 used for options
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int32 r4 = A - B + 0x6A00 & 0xFFFFFFFF
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int32 r0 = r3 == r4 && r0
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int r1 = 0x207E
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call print_result
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// Test format 2.1 A Multiformat RD = f3(RD, RT, [RS+IM2]).
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T21A:
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int64 r10 = address [T1 + 0x10000000]
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int32 r3 = r20 - [r10 - 0x10000000]
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int32 r0 = r3 == A - T
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int r1 = 0x21A
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call print_result
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// Test format 2.8 A Multiformat RD = f3(RS, RT, IM2)
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T28A:
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int32 r3 = r20 - 0x12345678
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int32 r0 = r3 == A - 0x12345678
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int32 r3 = r20 + r21 + 0x56781234
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int32 r4 = A + B + 0x56781234 & 0xFFFFFFFF
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int32 r0 = r3 == r4 && r0
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int r1 = 0x28A
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call print_result
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int64 r0 = address [press_run]
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call _printf
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breakpoint
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// Test format 3.0.0 E Multiformat RD = f3(RU, RT, [RS+IM4])
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T300E:
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int32 r3 = r20 + r21 - [r10 - 0x10000000]
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int32 r0 = r3 == A + B - T
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int r1 = 0x300E
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call print_result
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// Test format 3.0.2 E Multiformat RD = f2(RU, [RS+RT*OS+IM4])
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T302E:
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int r2 = 2
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int32 r3 = r20 + [r10 + r2*4 - 0x10000000]
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int32 r0 = r3 == A + T + 2
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int r1 = 0x302E
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call print_result
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// Test format 3.0.3 E Multiformat RD = f2(RU, [RS+RT*OS]), limit = IM4
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T303E:
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int64 r1 = address [T1 - 0x400000]
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int r2 = 0x100000
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int32 r3 = r20 + [r1 + r2*4], limit = 0x100000
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int32 r0 = r3 == A + T
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int r4 = read_perf(perf16, 3) // counter for array overflow
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int r0 = r4 == 0 && r0
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int32 r3 = r20 + [r1 + r2*4], limit = 0x0FFFFF // exceed limit
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int r4 = read_perf(perf16, 3) // counter should show array overflow
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int r0 = r4 == 1 && r0
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int r4 = read_perf(perf16, 0) // reset counter
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int r1 = 0x303E
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call print_result
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// Test format 3.0.5 E Multiformat RD = f3(RU, [RS+RT*OS+IM2], IM4)
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T305E:
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int64 r1 = address [T1]
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int r2 = 3
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int32 r3 = [r1 + r2*4] - 0x77665544
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int32 r0 = r3 == T + 3 - 0x77665544
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int32 r3 = r20 - [r1 + r2*4 + 4] + 0x44556677
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int32 r4 = A - (T + 4) + 0x44556677 & 0xFFFFFFFF
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int32 r0 = r3 == r4 && r0
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int r1 = 0x305E
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call print_result
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// Test format 3.0.7 E Multiformat RD = f3(RS, RT, IM4 << IM2).
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T307E:
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int64 r3 = r20 - 0x77665544000000
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int64 r4 = A - 0x77665544000000
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int64 r0 = r3 == r4
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// this will report success on a CPU that supports only 32 bits because only the lower 32 bits of the result are compared
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int r1 = 0x307E
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call print_result
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// Test format 3.8 A Multiformat RD = f3(RS, RT, IM3:IM2)
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T38A:
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int64 r3 = r20 + 0x123456789ABCDEF0
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int64 r4 = A + 0x123456789ABCDEF0
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int64 r0 = r3 == r4
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// this will report success on a CPU that supports only 32 bits because only the lower 32 bits of the result are compared
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int r1 = 0x38A
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call print_result
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int64 r0 = address [press_run]
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call _printf
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breakpoint
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int64 r0 = address [singleformat]
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call _printf
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// format 1.0 A Single format RD = f2(RS, RT). unused
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// Test format 1.1 C Single format RD = f2(RD, IM1-2). 32-bit instructions
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T11C:
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int32 r2 = -0x23AB
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int32 r3 = 0x450000
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int32 r2 += r3
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int32 r0 = r2 == 0x450000 - 0x23AB
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int32 r2 = 0XABCD
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int32 r2 -= 0x5432
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int32 r2 ^= 0x44000
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int32 r0 = (r2 == (0XABCD - 0x5432 ^ 0x44000)) && r0
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int r1 = 0x11C
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call print_result
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// Test format 1.1 C, 64-bit instructions
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T111C:
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int64 r2 = -0x45AB
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int64 r2 += 0x340000000
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int64 r4 = 0x340000000 - 0x45AB
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int64 r0 = r2 == r4
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int64 r2 = -0x4500000000
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int64 r2 ^= 0x5600000000000
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int64 r4 = - 0x4500000000 ^ 0x5600000000000
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int64 r0 = r2 == r4 && r0
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int r1 = 0x111C
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call print_result
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// Test format 1.8 B Single format RD = f2(RS, IM1)
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T18B:
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int32 r1 = -0x1234
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int32 r2 = abs(r1, 1)
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int32 r0 = r2 == 0x1234
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int32 r3 = roundp2(r2,1)
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int32 r0 = r3 == 0x2000 && r0
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int r1 = 0x18B
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call print_result
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// Test format 2.0.6 E
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T206E_s:
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int32 r2 = T
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int32 r3 = truth_tab3(r20, r21, r2, 0x78)
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int32 r0 = r3 == (A & B ^ T)
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int r1 = 0x206E
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call print_result
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// Test format 2.0.7 E
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T207E_s:
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int32 r1 = 7
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| 322 |
|
|
int32 r2 = 0x12345678
|
| 323 |
|
|
int32 r3 = move_bits(r1, r2, 20, 0, 8)
|
| 324 |
|
|
int32 r0 = r3 == 0x23
|
| 325 |
|
|
int r1 = 0x207E
|
| 326 |
|
|
call print_result
|
| 327 |
|
|
|
| 328 |
|
|
// Test format 2.9 A
|
| 329 |
|
|
T29A:
|
| 330 |
|
|
int64 r2 = insert_hi(r20, 0xABBA)
|
| 331 |
|
|
int64 r3 = r2 + (0xCDDEF << 36)
|
| 332 |
|
|
int64 r4 = (A | 0xABBA << 32) + (0xCDDEF << 36)
|
| 333 |
|
|
int32 r0 = r3 == r4
|
| 334 |
|
|
int r1 = 0x29A
|
| 335 |
|
|
call print_result
|
| 336 |
|
|
|
| 337 |
|
|
|
| 338 |
|
|
int64 r0 = address [jumpformat]
|
| 339 |
|
|
call _printf
|
| 340 |
|
|
|
| 341 |
|
|
|
| 342 |
|
|
// Test format 1.6 B
|
| 343 |
|
|
T16B:
|
| 344 |
|
|
int r1 = 1
|
| 345 |
|
|
int r2 = 2
|
| 346 |
|
|
if (int32 r1 < r2) {int r3 = 5}
|
| 347 |
|
|
if (int32 r1 == r2) {int r3 = 6}
|
| 348 |
|
|
int32 r0 = r3 == 5
|
| 349 |
|
|
int r1 = 0x16B
|
| 350 |
|
|
call print_result
|
| 351 |
|
|
|
| 352 |
|
|
// Test format 1.7 C
|
| 353 |
|
|
T17C:
|
| 354 |
|
|
if (int32 r1 == 9) {int r3 = 7}
|
| 355 |
|
|
else {int r3 = 8}
|
| 356 |
|
|
int32 r0 = r3 == 8
|
| 357 |
|
|
int r1 = 0x17C
|
| 358 |
|
|
call print_result
|
| 359 |
|
|
|
| 360 |
|
|
// Test format 2.5.0 A
|
| 361 |
|
|
T250A:
|
| 362 |
|
|
int32 r3 = r20 + r21, jump_nzero T250A_2
|
| 363 |
|
|
int r3 = 0
|
| 364 |
|
|
T250A_2:
|
| 365 |
|
|
int32 r0 = r3 == (A + B & 0xFFFFFFFF)
|
| 366 |
|
|
int r1 = 0x250A
|
| 367 |
|
|
call print_result
|
| 368 |
|
|
|
| 369 |
|
|
// Test format 2.5.1 B
|
| 370 |
|
|
T251B:
|
| 371 |
|
|
int32 r3 = r20 + 0x1000, jump_nzero T251B_2
|
| 372 |
|
|
int r3 = 0
|
| 373 |
|
|
T251B_2:
|
| 374 |
|
|
int32 r0 = r3 == A + 0x1000
|
| 375 |
|
|
int r1 = 0x251B
|
| 376 |
|
|
call print_result
|
| 377 |
|
|
|
| 378 |
|
|
// Test format 2.5.2 B
|
| 379 |
|
|
options codesize = 1 << 16
|
| 380 |
|
|
T252B:
|
| 381 |
|
|
int r3 = 0x200
|
| 382 |
|
|
int32 r3 += [T1], jump_nzero T252B_2
|
| 383 |
|
|
int r3 = 0
|
| 384 |
|
|
T252B_2:
|
| 385 |
|
|
int32 r0 = r3 == T + 0x200
|
| 386 |
|
|
int r1 = 0x252B
|
| 387 |
|
|
call print_result
|
| 388 |
|
|
|
| 389 |
|
|
// Test format 2.5.4 C
|
| 390 |
|
|
options codesize = 1 << 30
|
| 391 |
|
|
T254C:
|
| 392 |
|
|
int64 r10 = address [T254C_2]
|
| 393 |
|
|
if (int32 r20 != 1) {jump TARGET1}
|
| 394 |
|
|
int r3 = 0
|
| 395 |
|
|
T254C_2:
|
| 396 |
|
|
int32 r0 = r3 == 0x55
|
| 397 |
|
|
int r1 = 0x254C
|
| 398 |
|
|
options codesize = 0
|
| 399 |
|
|
call print_result
|
| 400 |
|
|
|
| 401 |
|
|
// Test format 2.5.5 C
|
| 402 |
|
|
T255C:
|
| 403 |
|
|
int32 r3 = r21
|
| 404 |
|
|
if (int32 r20 > A-1) {jump T255C_2}
|
| 405 |
|
|
int32 r3 = 0
|
| 406 |
|
|
T255C_2:
|
| 407 |
|
|
int32 r0 = r3 == r21
|
| 408 |
|
|
int r1 = 0x255C
|
| 409 |
|
|
call print_result
|
| 410 |
|
|
|
| 411 |
|
|
// Test format 2.5.7 C
|
| 412 |
|
|
// system call not implemented yet
|
| 413 |
|
|
|
| 414 |
|
|
// Test format 3.1.0 A
|
| 415 |
|
|
T310A:
|
| 416 |
|
|
int64 r10 = address [T310A_2]
|
| 417 |
|
|
int32 r1 = [T1]
|
| 418 |
|
|
if (int32 r1 == [T1]) {jump TARGET1}
|
| 419 |
|
|
int r10 = 0
|
| 420 |
|
|
T310A_2:
|
| 421 |
|
|
int32 r0 = r10 != 0
|
| 422 |
|
|
int r1 = 0x310A
|
| 423 |
|
|
call print_result
|
| 424 |
|
|
|
| 425 |
|
|
// Test format 3.1.1 A
|
| 426 |
|
|
T311A:
|
| 427 |
|
|
int64 r10 = address [T311A_2]
|
| 428 |
|
|
if (int32 r20 == A) {jump TARGET1}
|
| 429 |
|
|
int r10 = 0
|
| 430 |
|
|
T311A_2:
|
| 431 |
|
|
int32 r0 = r10 != 0
|
| 432 |
|
|
int r1 = 0x311A
|
| 433 |
|
|
call print_result
|
| 434 |
|
|
|
| 435 |
|
|
|
| 436 |
|
|
int64 r0 = address [newline]
|
| 437 |
|
|
call _printf
|
| 438 |
|
|
|
| 439 |
|
|
breakpoint
|
| 440 |
|
|
|
| 441 |
|
|
int r0 = 0 // program return value
|
| 442 |
|
|
return // return from main
|
| 443 |
|
|
|
| 444 |
|
|
_main end
|
| 445 |
|
|
|
| 446 |
|
|
|
| 447 |
|
|
print_result function
|
| 448 |
|
|
// Print the result of a single test. Parameters:
|
| 449 |
|
|
// r0: 1 if success
|
| 450 |
|
|
// r1: format as hexadecimal digits. e.g. 0x204E means format 2.0.4 E
|
| 451 |
|
|
|
| 452 |
|
|
// allocate space for temporary string and parameter list
|
| 453 |
|
|
int64 sp -= 64 // allocate space on stack
|
| 454 |
|
|
int r7 = r1
|
| 455 |
|
|
int r6 = 'N'
|
| 456 |
|
|
int r6 = 'Y', mask = r0, fallback = r6
|
| 457 |
|
|
|
| 458 |
|
|
// find length of format name
|
| 459 |
|
|
int r5 = 8
|
| 460 |
|
|
int r3 = r1 >= 0x1000
|
| 461 |
|
|
int r5 += 4, mask = r3
|
| 462 |
|
|
int64 r4 = sp + 16 // string buffer
|
| 463 |
|
|
|
| 464 |
|
|
// loop through characters in format name
|
| 465 |
|
|
for (int ; r5 >= 0; r5 -= 4) {
|
| 466 |
|
|
// set up parameter list for sprintf
|
| 467 |
|
|
uint32 r0 = r7 >> r5 // character
|
| 468 |
|
|
int r0 &= 0x0F
|
| 469 |
|
|
int64 [sp] = r0 // part of format name
|
| 470 |
|
|
int r1 = ' '
|
| 471 |
|
|
int r3 = r5 > 4
|
| 472 |
|
|
int r1 = r3 ? '.' : r1 // dot or space after character
|
| 473 |
|
|
int64 [sp+8] = r1 // character
|
| 474 |
|
|
int64 r0 = r4 // string buffer
|
| 475 |
|
|
int64 r1 = address [format1]// format string
|
| 476 |
|
|
int64 r2 = sp // parameter list
|
| 477 |
|
|
call _sprintf // put part of format name in string buffer
|
| 478 |
|
|
int64 r4 += 2 // advance string buffer pointer
|
| 479 |
|
|
}
|
| 480 |
|
|
|
| 481 |
|
|
// set up parameter list for printf
|
| 482 |
|
|
int64 r4 = sp + 16 // string buffer
|
| 483 |
|
|
int64 [sp] = r4 // format name
|
| 484 |
|
|
int64 [sp+8] = r6 // 'Y' if success
|
| 485 |
|
|
int64 r0 = address [format2]// format string
|
| 486 |
|
|
int64 r1 = sp // parameter list
|
| 487 |
|
|
call _printf // write to stdout
|
| 488 |
|
|
|
| 489 |
|
|
int64 sp += 64 // free stack space
|
| 490 |
|
|
return
|
| 491 |
|
|
|
| 492 |
|
|
print_result end
|
| 493 |
|
|
|
| 494 |
|
|
code1 end
|
| 495 |
|
|
|
| 496 |
|
|
|
| 497 |
|
|
// second code section for long distance jumps
|
| 498 |
|
|
code2 section execute
|
| 499 |
|
|
|
| 500 |
|
|
TARGET1:
|
| 501 |
|
|
int r3 = 0x55
|
| 502 |
|
|
int64 jump r10
|
| 503 |
|
|
|
| 504 |
|
|
code2 end
|
