Sample Solution For Gr8BOnd Encoding And Assembler
The following is the
AIK
code for the sample solution.
Sample Solution For Gr8BOnd Encoding And Assembler
; Opcode is top 8 bits, ; but only top 4 are present in some cases .br $.d, .addr := .this:4 (.addr-.):8 .d:4 .alias .br 0xe bz bnz .cx $.d, .c8 := .this:4 .c8:8 .d:4 .alias .cx 0xb ci8 cii cup .r2 $.d, $.s := .this:8 .s:4 .d:4 .alias .r2 { 0x70 addi addii muli mulii shi shii slti sltii 0x60 addp addpp mulp mulpp 0x50 and or xor 0x40 ld st } .r1 $.d := .this:8 0:4 .d:4 .alias .r1 { 0x30 anyi anyii negi negii 0x20 i2p ii2pp p2i pp2ii invp invpp 0x10 not 0x01 jr } trap := 0:8 0:4 0:4 .const { r0 r1 r2 r3 r4 r5 r6 r7 r8 r9 r10 at rv ra fp sp } .segment .text 16 0x10000 0 .VMEM .segment .data 16 0x10000 0 .VMEM ; Synthesized instructions ; (yes, these are harder than all the real instructions) ci $.d, .c16 ?((.c16 >= -128) && (.c16 <= 127)) { := ci8:4 .c16:8 .d:4 ; ci8 $.d, .c16 } ci $.d, .c16 ?((.c16 & 0xff) == ((.c16 >> 8) & 0xff)) { := cii:4 .c16:8 .d:4 ; cii $.d, .c16 } ci $.d, .c16 := { cii:4 .c16:8 .d:4 ; cii $.d, .c16 cup:4 (.c16>>8):8 .d:4 ; cup $.d, (.c16>>8) } jmp .addr ?(((.addr - .) >= -128) && ((.addr - .) <= 127)) { := bnz:4 (.addr-.):8 sp:4 ; bnz $sp, .addr } jmp .addr ?((.addr >= -128) && (.addr <= 127)) { := ci8:4 .addr:8 at:4 ; ci8 $at, .addr jr:8 0:4 at:4 ; jr $at } jmp .addr ?((.addr & 0xff) == ((.addr >> 8) & 0xff)) { := cii:4 .addr:8 at:4 ; cii $at, .addr jr:8 0:4 at:4 ; jr $at } jmp .addr := { cii:4 .addr:8 at:4 ; cii $at, .addr cup:4 (.addr>>8):8 at:4 ; cup $at, (.addr>>8) jr:8 0:4 at:4 ; jr $at } .j $.d, .addr ?(((.addr - .) >= -128) && ((.addr - .) <= 127)) { := .this:4 (.addr-.):8 .d:4 ; b(same) $.d, .addr } .j $.d, .addr ?((.addr >= -128) && (.addr <= 127)) { := (.this^1):4 3:8 .d:0 ; b(opposite) $.d, .+3 ci8:4 .addr:8 at:4 ; ci8 $at, .addr jr:8 0:4 at:4 ; jr $at } .j $.d, .addr ?((.addr & 0xff) == ((.addr >> 8) & 0xff)) { := (.this^1):4 3:8 .d:0 ; b(opposite) $.d, .+3 cii:4 .addr:8 at:4 ; cii $at, .addr jr:8 0:4 at:4 ; jr $at } .j $.d, .addr := { (.this^1):4 4:8 .d:0 ; b(opposite) $.d, .+4 cii:4 .addr:8 at:4 ; cii $at, .addr cup:4 (.addr>>8):8 at:4 ; cup $at, (.addr>>8) jr:8 0:4 at:4 ; jr $at } .alias .j 0xe jz jnz
Sample Assembly Language Input
.text start: addi $1, $2 addii $1, $2 addp $1, $2 addpp $1, $2 and $1, $2 anyi $1 anyii $1 bnz $1, place bz $1, place ci8 $1, 42 cii $1, two cup $1, 42 i2p $1 ii2pp $1 jr $ra place: ld $1, $2 muli $1, $2 mulii $1, $2 mulp $1, $2 mulpp $1, $2 .data ; switch to data segment .word 42 .word 601 two: .word 480 .text ; back to text segment negi $1 negii $1 not $1 or $1, $2 p2i $1 pp2ii $1 shi $1, $2 shii $1, $2 slti $1, $2 sltii $1, $2 st $1, $2 trap xor $1, $2 ; synthetics ci $1, 0x42 ci $1, 0x4242 ci $1, 0x1234 .origin 1024 jmp .+1 jmp 0x42 jmp 0x4242 jmp 0x1234 jz $1, .+1 jz $1, 0x24 jz $1, 0x2424 jz $1, 0x4321 jnz $1, .+1 jnz $1, 0x42 jnz $1, 0x4242 jnz $1, 0x1234
Advanced Computer Architecture.
Advanced Computer Architecture.