graphics_system -> graphics_hello

code/graphics_hello/dsl.s

@@ -0,0 +1,81 @@
+; Symbol Alias Table
+
+; Instructions
+; Load
+load_addr  equ la  ; 
+load_imm   equ li  ; dst_reg, immeidate value (signed)
+load_uimm  equ lui ; dst_reg, immediate value (unsigned)
+load_word  equ lw  ; dst_reg, offset(src_reg0) (offset is immediate value)
+; Store
+store_word equ sw ; src_reg, dst_address 
+; Shift
+shift_ll equ sll ;
+shift_rl equ srl ;
+shift_ra equ sra ;
+; Addition
+add_s  equ add   ; dst_reg, reg_a, reg_b (signed)
+add_u  equ add   ; dst_reg, reg_a, reg_b (unsigned)
+add_si equ addi  ; dst_reg, src_reg, immediate value (signed)
+add_ui equ addiu ; dst_reg, src_reg, immediate value (unsigned)
+; Subtraction
+sub_s equ sub    ; 
+sub_u equ subu   ; 
+; Multiplication
+
+; Division
+div_s         equ div    ;
+div_u         equ divu   ;
+mov_from_high equ mfhi   ;
+mov_from_low  equ mflo   ;
+; Branch
+branch_ne_zero  equ bnez ; 
+branch_equal    equ beq  ; reg, value(reg, immediate), dst_label
+branch_gt_equal equ bge  ; reg, value(reg, immediate), dst_label
+branch_gt       equ bgt  ; reg, value(reg, immediate), dst_label
+branch_lt       equ blt  ; reg, value(reg, immediate), dst_label
+; Jump
+jump       equ j   ; address:    immediate
+jump_nlink equ jal ; subroutine: immeidate
+jump_reg   equ jr  ; address:    register
+jump_nreg  equ jrl ; subroutine: register
+
+; Registers
+; Stack
+rstack_ptr equ $sp ; I have this but won't really use the alias..
+; Temporaries, may be changed by subroutines
+rtmp_0 equ $t0
+rtmp_1 equ $t1
+rtmp_2 equ $t2
+rtmp_3 equ $t3
+rtmp_4 equ $t4
+; Static Variables
+rstatic_0 equ $s0
+rstatic_1 equ $s1
+rstatic_2 equ $s2
+rstatic_3 equ $s3
+rstatic_4 equ $s4
+rstatic_5 equ $s5
+rstatic_6 equ $s6
+rstatic_7 equ $s7
+; Subroutine arguments
+rarg_0 equ $a0
+rarg_1 equ $a1
+rarg_2 equ $a2
+rarg_3 equ $a3
+; Subroutine return values
+rret_0 equ $v0
+rret_1 equ $v1
+; Subroutine return address when doing a sub
+rret_addr equ $ra
+
+; Data Widths
+byte equ 1
+word equ 4
+
+.macro stack_alloc, amount
+	add_ui $sp, - amount
+.endmacro
+
+.macro stack_release, amount
+	add_ui $sp, amount
+.endmacro